2015 Annual Progress Report Summary Log · Web viewLIST OF ANNUAL PROGRESS REPORTS TO WECC - 2013 ROCKY MOUNTAIN POWER AREA CONTENTS AND REMARKS Name of Project GenMW Transmission

LIST OF ANNUAL PROGRESS REPORTS TO WECC - 2014NORTHWEST POWER POOL AREA

CONTENTS AND REMARKS

Name of ProjectGenMW

Transmission kV Date

No. ofpages

TransferCapability Phase

Power Transient Post Transient OneTables Flow Stability Stability Lines Maps

Request Copy of Report From

Edmonton Region 240 kV Line Upgrades – P786

240 1/2016 .6 The majority of this project has been completed:• Increase the capacity of 908L and 909L up to the summer rating of the primary conductor (2 x 477 kcmil) by replacing the conductor on the small conductor section (first 4 km of line east of Sundance 310P)• Increase the capacity rating of 902L up to the summer rating of the primary conductor (2 x 477kcmil) by replacing the conductor on the small conductor sections of 902L (first 4 km of line east of Wabamun 19S and first 4 km of line east of Sundance 310P)• Construct 12 km of new double circuit 240 kV line with one side strung east from Keephills 320P to the 904L-908L-909L confluence point west of Stony Plain in order to move the termination point of 908L from Sundance 310P to Keephills 320P, and add two associated 240 kV breakers at Keephills 320P• Swap the connections of 904L and 908L at the 904L-908L-909L confluence point south of Jasper 805S in order to move the termination point of 904L from Wabamun 19S to Sundance 310P• Install Special Protection Systems (SPS) for three double circuit tower failure events (Category C5)• Install a 240 kV 600 MVA phase shifting transformer in 9L57 line and three associated 240 kV breakers; preferred location is the proposed Livock station north of Brintnell.The following components of the project are not yet completed construction due to continued negotiations with land owners:• Rebuild the 41 km east-west single circuit wood pole sections of 904L (Jasper to Wabamun) using 2 x 1033 kcmil conductor. On-going negotiations with land owners in the area has delayed completing this work.• Rebuild the 6 km east-west single circuit wood pole section of 904L (Jasper to Petrolia) using 2 x 1033 kcmil conductor. On-going negotiations with land owners in the area has delayed completing this work.• Increase the capacity of both 904L sections out of Jasper 805S up to the summer rating of the primary conductor (2 x 477 kcmil) by replacing the conductor on the small conductor section (12 km of line south of Jasper 805S).The project is under construction and the current expected in service date is end of January 2016.

Brian BelwayProject Manager

TransmissionAlberta Electric

System Operator (AESO)

2500, 330 – 5th Avenue SW

Calgary, AB T2P 0L4

403-539-2569Brian.Belway@aes

o.ca(AESO)

Northwest Alberta Transmission System Reinforcement

240 2011-2012 .5 This project involves adding new transmission facilities listed below and is required to maintain reliability of supply and to meet load growth in the northwest Alberta. The need for the entire project has been approved by the provincial regulatory board.

Brintnell to Wesley Creek 240 kV Line – This sub-project involves building a new 240 kV line (145 mi) with 2 x 477 MCM conductors per phase (summer/winter capacity of 550/702 MVA respectively). This new line was energized December 18, 2009.

Wesley Creek to Hotchkiss 144 kV Line – This sub-project involves building a new 144 kV double circuit line (83 mi) with each circuit with 2 x 477 MCM conductors/phase (summer/winter capacity – 330/422 MVA) and is planned to be completed in 2011.

Sulphur Point to High Level 144 kV Line – This sub-project involves building a

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new 144 kV single circuit line (65 mi) with 1 x 266.8 MCM conductors/phase (summer/winter capacity – 114/146 MVA) and is planned to be completed in 2012.

Ring Creek Arcenceil (near Rainbow Lake) 144 kV Line – This sub-project involves building a new 144 kV single circuit line (70 mi) with 1 x 266.8 MCM conductors/phase (summer/winter capacity – 114/146 MVA) and is planned to be completed in 2012.

Reactive Power Support in Northwest Alberta – This sub-project involves adding smaller cap banks at various locations to a total of 180 MVARs in northwest Alberta. In addition, two small SVCs will be added as follows: 30 MVAR @ Cranberry Lake; -5 + 30 MVAR at High Level. This sub-project is planned to be completed in 2012.

9L15 termination into Livock 240 2015 .2 This project involves the following developments to provide additional support to the NortWest region of Alberta and increase flows inout of the Fort McMurray area;

15 km of 240 kV line (Brintnell to Livock)Remove 9L15 termination from Brintnell

Terminate 9L15 at Livock (brkrs only, Livock should already have the diameter)

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Northwest Alberta Transmission System Reinforcement

240 2015-2017 .3 This project involves the following 240kV and 138kV reinforcements to the NorthWest region of Alberta;

Bickerdick to Little Smoky- The double circuit 240kV line will help to eliminate the voltage collape and overloaded problem in northwest; it is assumed to be in the service by 2015

New Wimbley 240kV substationNew Double Circuit 240kV line from Little Smokey to Wimbley.

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Southeast Transmission Reinforcement (SETR)

240/138 2011 .4 SETR is a system upgrade to accommodate continued growth in wind generation in the southern Alberta region. This project was approved in July 2008 and is under construction.

138 kV and 240 kV lines and substations upgrade in Lethbridge, Brooks and Empress areas.

Construction of a new 138/240 kV 2 x 200 MVA Cypress Substation.Salvage of 2 x 200 MVA 138/240 kV auto-transformers and replacement by

2 x 400 MVA 138/240 kV auto-transformers.Addition of a third 138/240 kV 200 MVA auto-transformer at North

Lethbridge.Addition of capacitor banks at Tilley and McNeill.

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Yellowhead Area Transmission Development – P671

240/138 2011 .1 138 kV and 240 kV development in the area to support future load growth. “

Livock 240/144 kV Connection – P834

240/144 2011 .1 Development of Livock 240/144 kV connection to support load growth in the Fort McMurray area near Brintnell station.

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Fidler 312S 240/138 kV Interconnection – P936

240/138 2012 .2 AESO is preparing needs identification document (NID) application and transmission facility owner is preparing facility application (FA) targeted to file with the Alberta Utilities Commission (AUC) in Q2 2010. This system upgrade is to accommodate continued growth in wind generation in the southern Alberta region. The target in service date is 2011 with the following major components:

New 240/138 kV Fidler Substation138 kV line re-location

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Northeast Fort McMurray 240 kV Loop – P791

240 2012 .1 Development of 240 kV loop to reinforce the north Fort McMurray area to support load growth.

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Halkirk 1 Wind Project – P723

150 240 2012 .1 Capital Power intends to connect a 150 MW WTG facility into the Alberta electric grid system via a new 240 kV Transmission line by mid 2012.

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ENMAX Shepard Energy Centre – P719

800 240 6/2015 .5 The ENMAX Shepard Energy Centre is a natural gas-fired 800 MW combined cycle power station. The power station is composed of two 240 MW gas turbines and one 320 MW HRSG. The power station is located at the eastern edge of the City of Calgary and approximately 4 km south of existing Janet 74S station. There is a large transmission system development associated with this project to facilitate integration of this power station as well as to accommodate other ongoing system developments such as WATL and SATR.Construction is well underway and the power station has a planned commercial in service date of June 2015.

Sonja TessariProject Manager



2500, 330 - 5th Avenue SW

Calgary, AB T2P 0L4

403-539-2669Sonja.Tessari@ae

so.ca

Naturener Wild Rose Wind Farm 1 – P479

210 240 April, 2016 .4 Wild Rose 1, a 210 MW wind-powered generating facility, is comprised of 70 x 3 MW wind turbine generators with a collector substation located approximately 55 km southeast of the City of Medicine Hat. This wind power plant will be connected from the Wild Rose 547S station to the Elkwater 264S station via a single circuit 240 kV line.

The proposed in-service date for the interconnection of Wild Rose 1 is 2016. The Facilities Application was approved by the Alberta Utilities Commission on March 21, 2012.

Dale BergmenProject Manager

Transmission Project DeliveryAlberta Electric



Calgary, AB T2P 0L4

403-539-2704Dale.Bergman@ae

so.ca

Naturener Wild Rose Wind Farm 2 – P693

204 240 March, 2016

.4 Wild Rose 2, a 210 MW wind-powered generating facility, is comprised of 70 x 3 MW wind turbine generators with a collector substation located approximately 30 km south of the City of Medicine Hat. In the near future, the wind power facility will be


Transmission

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expanded to have a total of 204 MW installed capacity. This wind power plant will be connected from the Eagle Butte 274S station to the Elkwater 264S station via a single circuit 240 kV line.

The proposed in-service date for the interconnection of Wild Rose 2 is 2016. The Facilities Application was approved by the Alberta Utilities Commission on March 21, 2012.

Project DeliveryAlberta Electric



Calgary, AB T2P 0L4


so.ca

Fort McMurray West 500 kV Line – Project 1590

500 2019 .3 The project was part of Project 838 - Fort McMurray Area Transmission Bulk System Reinforcement. The project consists primarily of one 500 kV AC line from Sunnybrook station to the new Thickwood 500/240 kV station in the Fort McMurray area with a target operation date of June 2019. The project was competitively procured as required by legislation, and Alberta PowerLine (consortium) was selected by the AESO in December 2014 as bid winner. Preparation of facility applications to submit to the Alberta Utilities Commission is in progress by Alberta PowerLine. http://www.albertapowerline.com/As this project was approved through legislation, transmission need approval from the Alberta Utilities Commission was not required.

Kelly Yagelniski, PMP, B.Admin

Director, Project Support



403-539-2878 direct

[email protected]

Project 1591 - Fort McMurray 4.1.1 East 500 kV Line

500 .3 The project was part of Project 838 - Fort McMurray Area Transmission Bulk System Reinforcement. The project consists primarily of one 500 kV AC line from the Heartland station to the new Thickwood 500/240 kV station in the Fort McMurray area with operation date to be determined.

As this project was approved through legislation, transmission need approval from Alberta Utilities Commission is not required.The project is required to be competitively procured by legislation, and the timing of this development is under review.





403-539-2878 direct

[email protected]

Christina Lake Area Development

240/144 2015 This project involves the development of looped 240kV double circuit in the Christina Lake area south of FortMcMurray. The project will allow connection of new load and reinforce the transmission system to accommodate the forecasted load and generation growth in the area south of Fort McMurray. The project involves the following;

3 new 240/144kV substations (CHL1, CHL2 and CHL4) Termination of the new looped 240kv line into the existing HeartLake

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http://www.albertapowerline.com/







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substation

Algar 240/144 kV substation 240/144 2015-2017 This project involves the construction of a new 240/144 kV substation to provide a fourth source to the 144 kV transmission system in Fort McMurray to accommodate load growth in the area and alleviate anticipated congestion on the 144 kV system.

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Algar-Kinosis 240 kV line 240 2017-2020 This project involves the construction of a new 240 kV circuit connecting the existing Kinosis substation to the new Algar substation. This project will provide needed reinforcement to the Fort McMurray 240 kV network in order to accommodate the forecasted load growth.

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Southern Alberta Transmission Reinforcement (SATR) – P787

240 2016 1 2400 The project considers the implementation of a 240 kV loop in the Southern Alberta region in order to allow the future connection of wind power in that region and to move this power to the Calgary area through three power corridors; in the east from Whitla to West Brooks, in the center from Peigan to Foothills and on the west from Goose Lake to Langdon through the 500 kV transmission line 1201L. This project consists of the following lines:• 911L replaced by Foothills to Peigan 240 kV double circuit transmission line with 50% series compensation. Each circuit rated with a summer/winter capacity of approximately 980/980 MVA. (Under construction)• A new 240 kV double circuit line, approximately 150 km in length from Cassils (near West Brooks) to Bowmanton (East Medicine Hat). Each circuit is rated at a summer/winter capacity of approximately 980/980 MVA. (Commissioned)• A new 240 kV switching station at a location known as Milo Junction and converting the two existing three terminal Langdon - West Brooks - North Lethbridge lines into six two-terminal lines. (Commissioned)• A new 240 kV double circuit line, approximately 80 km in length from Bowmanton (Medicine Hat) to Whitla connecting the wind farms in the south. Each circuit is rated at a summer/winter capacity of approximately 980/980 MVA. (Commissioned)• New Chapel Rock 500/240 kV substation cut into existing 1201L. The station will include two 1200 MVA 500/240 kV transformers, two 240 kV 100 MVAr capacitor banks and a +200/-100 MVAr SVC and one 45 MVAr shunt reactor.• New Chapel Rock – Castle Rock Ridge - Goose Lake 240 kV double circuit transmission line with a rated summer/winter capacity of approximately 980/1200 MVA.• Add a 138 kV phase shifting transformer between Coleman and Pincher Creek. (Commissioned)• The addition of two (2) 240/138kV 400MVA transformers at new Windy Flats station near existing Peigan 59S station. (Under construction)• New 240 kV Etzikom Coulee substation to connect future wind farms. (On hold)• Interconnect Etzikom Coulee with Picture Butte (MATL) substation. (On hold)• Interconnect Etzikom Coulee with Goose Lake. (On hold)The project is expected to be operational by 2016 except for those components on hold. Currently most of the project developments are at Facility Application stage.The connection studies conducted for this system project does not indicate a negative impact on the transfer capability of WECC Path 1.

Dale BergmanProject Manager –

TransmissionProject Delivery

SouthAlberta Electric



Calgary, AB T2P 0L4

Tel: 403-539-2704Dale.Bergman@ae

so.ca

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South and West of Edmonton Transmission Development – P850

240 2017 1 This project addresses the need for development in the area South and West of Edmonton. The approved alternative includes:• New 240/138 kV station (Harry Smith 367S) south of Stony Plain with two 240/138 kV 400 MVA transformers, connected by an in and out connection to 1043L between Keephills 320P and Petrolia 816S• New 240/138 kV station (Saunders Lake 289S) north of Leduc with two 240/138 kV 400 MVA transformers, connected by an in and out connection to 910L between Ellerslie 89S and Wolf Creek 288S, and connected by an in and out connection to 914L between Ellerslie 89S and Bigstone 86S• New 25 km 138 kV line from 780L to Cooking Lake and reconfiguration• New 13 km 138 kV line from Harry Smith 369S to East Stoney Plain 434S• Two new 13 km 138kV line from Harry Smith 367S to Acheson 305S• Two new 1 km lines from Saunders Lake 289S to 780L and to 868L• Normally open operation of 133L between Wabamun 19S and 243L tap• New capacitor banks at Leduc 325S (27 MVAr)The transmission facilities Needs Identification Document was filed with the Alberta Utilities Commission December 2012 and approved December 2013. Facilities applications are pending from the TFO (AltaLink) to the Alberta Utilities Commission. The expected in service date is late 2017.

Ilice TanProject Co-ordinator




Calgary, AB T2P 0L4

[email protected]

Alberta Industrial Heartland Bulk Transmission Development – State 2

500/240 2015-2020 The purpose of this project is to reinforce the 240 kV network in northeastern Alberta and increase reliability to the connection of the East HVDC lines. This project will involve the following reinforcements:

Second 500/240 kV transformer at HeartlandDouble circuit 240 kV from Heartland to EastwoodDouble circuit 240 kV from Eastwood to 942L tap. 10 km 2 x 1033 double

circuit.

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P116 – Foothills Area Transmission Development

240 June-14 The Foothills Area Transmission Development is a regional system project that is required to support load growth and generation increase in the Calgary and Foothills areas, and also to support the wind power generation increase in southern Alberta. The project consists of initial stage of a new Foothills substation to terminate the new 240 kV lines from Fort McLeod area in southern Alberta.

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P1117 – Foothills Area Transmission Development – FATD – Foothills 237S Substation & East Calgary Development - Updated

240/138 June-14 The AESO has identified the need to reinforce the transmission system in the south Calgary and in the High River planning area. This reinforcement will alleviate existing and anticipated constraints to accommodate the expected load growth and integrate new generation capacity within the subject area, and facilitate transmission of generation from southern Alberta to load centres. The FATD project willconsist of two separate sub-projects.This approved project will install several new 240 kV lines between stations Janet 74S, SS-25, SS-65, Foothills 237S and Langdon 102S to improve system reliability including the construction of new Foothills 237S station. Also included in this approved project is the installation of 138 kV lines in the High River planning area.The new Foothills 237S station will serve as the termination points for the new double circuit series compensated 240 kV line from Windy Flats 137S near Peigan

Sonja TessariProject Manager -



2500, 330 - 5th Avenue SW

Calgary, AB T2P 0L4

403-539-2669

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59S. Foothills 237S is where the Southern Alberta Transmission Reinforcement (SATR) is tied with this FATD project to achieve the required overall system performance.The project has been approved by the Alberta Utilities Commission in October 2013 with an ISD expected in Q3 2015.The studies conducted for this system project does not indicate a negative impact on the transfer capability of WECC Path 1.

[email protected]

C-Free Power Oyen Wind Project – P763

100 2013 .1 The project involves development of a 100 MW wind power generating plant. “

Edmonton - Calgary West DC Lline – P962

+/- 500 DC Q4/2014 .3 To alleviate congestion on the N-S transmission system, restore capacity of interties, improve efficiency of the transmission system (reduce losses), and avoid potential reliability issues, the following development has been proposed:

Construct a +/- 500 kV bipole, HVDC transmission line between the Genesee area and the existing Langdon 102S substation.

Construct monopole HVDC converter station facilities, with an initial rating of a minimum of 1000 MW.

The need for this project was approved by the Government of Alberta as part of the Critical Transmission Infrastructure. The project is currently in the facility siting phase and is forecasted to be in service by Q4 2014.

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Edmonton - Calgary East DC Lline – P961

+/- 500 DC Q4/2014 .3 To alleviate congestion on the N-S transmission system, restore capacity of interties, improve efficiency of the transmission system (reduce losses), and avoid potential reliability issues, the following development has been proposed:

Construct a +/- 500 kV bipole, HVDC transmission line between the Heartland area and a new 240 kV substation south of Westbrooks (Newell).

Construct monopole HVDC converter station facilities, with an initial rating of a minimum of 1000 MW.

The need for this project was approved by the Government of Alberta as part of the Critical Transmission Infrastructure. The project is currently in the facility siting phase and is forecasted to be in service by Q4 2014.

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Benign Energy Heritage Wind Farm - P515

350 On Hold .5 The proposed Heritage WAGF will be connected to the Alberta Interconnected Electric System (“AIES”) at the Fidler 312S substation in the Pincher Creek area. The windfarm is rated at 350 MW with 100 MW inservice at Stage 1 and 250MW at Stage 2. The Stage 1 development is dependent upon the completion of substation Fidler 312S for connection. The Stage 2 development is dependent upon the completion of transmission lines 1004L/992L from Fidler 312S to Chapel Rock 491S for connection. Under the current configuration, the wind power plant will consist of Vestas V90 3MW wind turbines. Both stages are onhold pending regulatory approval of Fidler 312S and transmission lines 1004L/992L.The reason for the staged approach is to inject as much as the system can handle without serious RAS constraints prior to the approval and completion of the Chapel Rock substation (connection to the 500 kV line). After the Chapel Rock Substation is built the system in the Pincher Creek area will become unconstrained (mostly) and





Calgary, AB T2P 0L4


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will be able to handle the full projected output of the Heritage Windfarm.The requested In Service Dates (“ISD”) for Stages 1 & 2 are on-hold.

so.ca

Bow City Power Project – P465

500 Project on hold

.1 This project requires 240 kV transmission development to accommodate the connection of the 500 MW Bow City coal fired power station. The project consists of a new 240 kV substation with approximately 4 km of 240 kV transmission line and the upgrade of existing 923L and 927L to a higher thermal rating. The project has been on hold since January 2008 and therefore a firm in service date is unknown.

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Pikani Energy Corp. Wind Farm – P773

220 .1 This 220 MW wind farm project is in the early conceptual stage and no connection has been determined or in service date targeted.

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Vindt Willowridge – P614 100 240 2013 Vindt Willowridge is a 100MW wind project that will connect to 966L “

Old Elm and Pothole Creek P1080

300 240 3/2018 1 The customer has proposed a 300 MW wind farm located in the Glenwood area close to Magrath 225S. Initially, the proposed interconnection is to 988L, a planned 240 kV transmission line between Goose Lake 103S and Journault 260S (SATR Phase 2). However, with this line on hold, the project connection is being reconsidered.

The customer requested an in service date of October 2013, however due to the system development required for the connection (988L) the in service date has been revised to March 2018.

The project proponent is currently developing AUC applications waiting on further details of the 988L development before consultation can begin. AUC application is dependent on the transmission facilities application filing date of the 988L (240 kV line), which is on hold pending review of its need.





Calgary, AB T2P 0L4


so.ca

Bloodtribe Wild Turnip Hill 150 2014 150 MW connecting into 240KV Line 968L “

P635 - Suncor Hand Hills Wind Energy Project

80 240 Dec-13 The Suncor Hand Hills Wind Farm project is a 80 MW wind power site that is located north-west of Anderson 801S. The project consists of a 240 kV switching station (Mother Mountain) that is a 240 kV ring bus, a 240 kV single-circuit transmission line and a 240/34.5 kV collector substation (Hand Hills 605S).

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P678 - Nexen Hand Hills Wind Project

80 240 Apr-13 The Nexen Hand Hills Wind Farm project is a 80 MW wind power site that is located north-west of Anderson 801S. The project consists of a 240 kV additions at proposed Coyote Lake 963S, a 240 kV single-circuit transmission line and a 240/34.5 kV collector substation (High Land 572S).

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P811 - Central East Transmission Development

240 Dec-17 The Central East Transmission Development is a regional system project that is required to support growth in the Central Region. The project consists of re-energizing an existing transmission line to 240 kV from proposed Bourque 970S substation to Bonnyville 700S, modifications to Bourque 970S and a new 240 kV transmission line from Marguerite Lake 826S to proposed Bourque 970S.

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P812 - Hanna Region Transmission Development

240 Mar-13 The Hanna Region Transmission Development is a regional system project that is required to support growth in the Hanna region. The project consists of four 240 kV source substations (Coyote Lake 963S, Lanfine 959S, Pemukan 932S and Nilrem 574S) one 240 kV switching station (Oakland 946S), modifcations to existing 240 kV substations (Hansman Lake 650S, Ware Junction 132S and Cassils 324S), -100/+200 MVar SVC's (Hansman Lake 650S and Lanfine 959S) and about 300 km of new 240 kV double-circuit transmission.

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P1113 - Hanna Region Transmission Development Phase 2

240 On Hold 1 The Hanna Region Transmission Development Project is designed to reinforce the transmission system in the region in order to meet the projected wind aggregared generating facilities and future load growth, in particular, pipeline pumping loads. AML and ATCO are transmission facility owners (TFOs) as this area is serviced by these two TFOs. The major components of this project consist of:

• String second side on the 240 kV double circuit line from Oakland to Lanfine and related alterations at Oakland 946S and Lanfine 959S• Cordel 755S to Halkirk switching station, new double circuit 240 kV line (one side strung) and related alterations• Anderson to Oakland Transmission Project 9L70/9L97 240kV lines, Oakland station and related alterations• String second side on the 240 kV double circuits line from Oakland 946S to Coyote Lake 963S and related alterations at Oakland 946S and Lanfine 959S.

Additionally, the following components are designed to reinforce the local network:• Convert existing Hanna 763S station to 144 kV station• New 144 kV line from Coyote Lake 963S to Hanna 763S and related alterations• Addition of 2nd 240/144 kV transformer at Pemukan 932S• Addition of 2nd 240/144 kV transformer at Lanfine 959S• Addition of 2nd 240/144 kV transformer at Hansman Lake 650S• Nilrem 574S station capacitor bank addition• Hansman Lake 650S station capacitor bank addition• Metiskow 648S station capacitor bank additions• Decommission of 6L44 (Rowley 768S to Big Valley 778S) and 6L22 (Michichi Creek 802S to Rowley 768S)

As per NID approval, the requested in-service date is year 2017. In light of change in system conditions (e.g. modest growth in wind development and load growth pattern), the AESO is presently reviewing the need as well as timing of the components through staging process. Until these studies are finalized, the project is on hold.

Anita PatelProject Manager –

TransmissionTransmission




Calgary, AB T2P 0L4

403-539-2516Anita.Patel@aeso.

ca

P813 - Red Deer Transmission Development

240 Q3 2014 1 The Red Deer Area Transmission Development project will be implemented in two stages, and is pending approval of the Facility Application.The following is an overview of the major components in stage I. The timing of stage II will be determined by the future load projections and/or a new generator application in the area.

Anita PatelProject Manager –

TransmissionProject DeliveryAlberta Electric

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• Split 768L and 778L and re-terminate at Red Deer North 217S (add 1 breaker, use 1 existing breaker)• Gaetz 87S (add 2 breakers, use 1 existing breaker)• Add second auto-transformer at Benalto 17S.• Add one 50 MVAr 138 kV capacitor bank at Joffre 535S• Add one 50 MVAr 138 kV capacitor bank at Prentiss 276S• Add one 27.6 MVAr 138 kV capacitor bank at Ellis 332S• Re-build 5 km of 80L 138 kV transmission line from South Red Deer 194S (use existing1 breaker) to North Red Deer 217S (use existing breaker)• Re-build 5 km (including 1 km of underground) of 80L 138 kV transmission line from South Red Deer 194S (use existing breaker) to Red Deer 63S (use existing breaker)• Re-build 29 km 755L 138 kV transmission line from Red Deer 63S (use existing breaker) to Piper Creek 247S (use existing breaker) to Joffre 535S (use existing breaker)• Re-build 33 km 717L (now called 637L and 648L) 138 kV transmission line from Red Deer 63S (use existing breaker) to Sylvan Lake (use existing breaker) to Benalto (use existing breaker)• New Johnson 281S 240/138 kV substation with 240 kV double circuit (200m) from 918L and 2 km of double-circuit 138 kV line to 80L and a connection to 166L• New 240/138 kV Wolf Creek 288S station with 240 kV double circuit (200m) from 910L and 4 km of double-circuit 138 kV line to Ponoka 331S (use existing breaker from salvage of D13 and D16) connect to 883L• New 240/138 kV Hazelwood 287S station on the 240 kV line 924L• New 13 km of 138 kV transmission line from Lacombe 212S (add 1 breaker) to Ellis 332S (add 1 breaker)• Salvage 53 km 80L 138 kV transmission line from Red Deer 63S to Innisfail 214S• Salvage 23 km 80L 138 kV transmission line from Ponoka 331S to West Lacombe 958S (this will be less by the approx. 5 km of salvage now part of Wolf Creek (CP44))• Salvage 40 km of 716L from Wetaskiwin 40S to Ponoka 331S (this will be less by the approx. 5 km of salvage now part of Wolf Creek (CP44))The in-service date is in stages starting from 2013.The Needs Identification Document (NID) was filed with the Alberta Utilities Commission in July 2011, which was approved in April 2012. Facilities Applications are being prepared in stages with the last stage scheduled to be filed by Q3 2014.



Calgary, AB T2P 0L4

403-539-2516Anita.Patel@aeso.

ca

North South Transmission Reinforcement – P737

500 4/2015 1 This project consists of two 1000 MW 500 kV line-commutated HVDC lines to alleviate transmission congestion along the SOK cut-plane.East Alberta Transmission Line (EATL) connects the Heartland 500 kV substation in the Fort Saskatchewan Area to the new Newell 240 kV substation in the Brooks Area. EATL will be built as bi-pole line with 1000 MW monopole converters using remaining conductor as metallic return. The project was approved by the Alberta Utilities Commission on November 15, 2012. EATL is expected to be in service by the end of 2015.West Alberta Transmission Line (WATL) connects from new Sunnybrook station near Genesee station in the Wabamun Area to Crossings station near existing Langdon station, which is adjacent to the terminal of 1201L 500 kV BC-Alberta tie-line. WATL will be built as bi-pole line with 1000 MW mono-pole converters using remaining





403-539-2878 direct

Kelly.Yagelniski@a

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conductor as metallic return. The project was approved by the Alberta UtilitiesCommission on December 6, 2012. WATL is expected to be in service by the end of 2015.The addition of these two HVDC lines will significantly increase the North to South transfer capability (SOK limit) within Alberta. As the 1201L 500 kV Alberta to BC export capability is limited by the SOK limit, the addition of these two lines will increase the East to West Total Transfer Capability of 1201L.

eso.ca

New Fidler 312S Substation – Project 1343

240/138 10/2017 .5 Increased transmission capacity is needed in the area northeast of Pincher Creek and west of the Piikani Nation reserve to provide several wind generating facilities, two of which are already in service and others which are planned to be in service within the next two years, access to the transmission system. The existing two wind generating facilities are frequently required to reduce output during normal operating conditions due to existing transmission system constraints. The Fidler 312S Collector Substation Connection Project NID was submitted by the AESO to the AUC on October 26, 2012. NID and FA approval is expected by August 2013. The planned in-service date is April, 2014.The Fidler Project includes a two stage development.Stage 1:• Develop a new 240/138kV collector substation with one transformer• Add a new double circuit 240 kV line connecting Fidler 312S to the existing 1071L transmission line in an in-out configuration• Rebuild existing portions of 138 kV transmission lines connecting into the Fidler 312S substation• Configure 893L between Goose Lake 103S and the tap-off to Oldman River Dam 806S to normal open under normal operating conditionsStage 2:• Add a second transformer at Fidler 312S• Salvage existing 138kV transmission line 893L between Goose Lake 103S and the tap-off to Oldman River Dam 806S.Stage 2 is dependent on meeting the milestone when installed and proposed generation capacity connected at the 138 kV side of Fidler 312S exceeds 80% of the capacity of the first transformer (288 MW assuming 0.9 power factor).The requested in-service date for the new connection is October, 2017.





Calgary, AB T2P 0L4


so.ca

Whitetail Peaking Station – Project 1290

200 2016 .3 Enbridge Inc. has proposed to construct the Whitetail Peaking Station as a new point of supply. The plant consists of 4 x 50 MW of gas fired peaking units. The project is to be developed in one stage with an in service date of August 1, 2016.

The plant is located in the Peace River planning area (area 19) approximately 13.5 km north of the existing Wesley Creek 834S station. The preferred alternative is to complete an in and out connection to 7L106 in the northwest region of Alberta.

The project is currently in Stage 3 out of 6 of the Connection Process and a functional specification has been finalized by the AESO with planned in-service date of May 1, 2016 for the substation facilities.

Steve PalmerTransmission



2500, 330 - 5th Ave SW

Calgary, AB, T2P 0L4

Ph: 403-539-2558Cell: 403-463-6073


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Shell Carmon Creek – Project 1321

230 240/25/18 2016 .5 The proposed project has an in service date of July 1, 2015. A total of three 230 MW cogeneration units are planned with 70 MW of on-site load. Shell intends to build a customer owned 240/25/18 kV substation and seeks an Industrial System Designation for the project. All projects loads will be served from Shell's proposed substation. The transmission connection requested could be a double-circuit 240 kV line from Carmen Creek to Wesley Creek in the Northwest Region of Alberta (Alternatives currently being studied).Project is currently completing studies and is in Stage 2 of the Connection Process with planned ISD of July 1, 2015




2500, 330 - 5th Ave SW

Calgary, AB, T2P 0L4

Ph: 403-539-2558Cell: 403-463-6073

Project 1421 - ATCO Power Heartland Generating Station

1080 10/2018 1 ATCO Power Canada Ltd. is proposing to construct a combined cycle power station called ATCO Heartland Generation Station. The project will consist of two identical phases:• Phase 1: 510 MW generation in September 2016• Phase 2: Additional 510 MW generation in October 2018Each combined cycle phase will include the following major components:• 1 x natural gas-fired turbine• 1 x steam turbineThis facility will be connected to the Josephburg 410S station near the City of Fort Saskatchewan.The generation and transmission facilities will be designed and operated to ensure that the outage of any single element/component will not cause a loss of more than 466 MW of generation to the AIES. Therefore, there is no impact to Path 1 Available Transfer Capability (ATC).





Calgary, AB T2P 0L4

403-539-2558steve.palmer@aes

o.ca

Project 1440 - Genesee Generating Station Unit 4 (“G4”) and Genesee Generating Station Unit 5 (“G5”)

1000 1/2018 .5 On April 30, 2013, the AESO received a system access service request (SASR) from Capital Power L.P. to connect two 500 MW natural gas-fired combined cycle blocks (Capital Power Energy Centre - CPEC) to the AIES at the Genesee power generation site. Each combined cycle block will consist of two gas turbine generators (GTG) and associated steam turbine generator (STG), all on one shaft driving one electrical generator.CPEC indicated that the gross generation capacity is expected to be up to 1000 MW for both combined cycle blocks, which could be developed in stages. The study assumes that the gross capacity of the proposed generating station is 1000 MW.The facility in-service date is currently expected to be January 2018. However, CPEC indicated that this date is subject to change due to market conditions.

Vladimir LopezTransmission




Calgary, AB T2P 0L4

(T) 403-539-2819vladimir.lopez@ae

so.ca

Project 1477 - TransAlta Sundance 7 Combined Cycle Power Plant

818 6/2018 .5 TransAlta MidAmerican (TAMA) Partnership is proposing to construct approximately 850 MW Sundance 7 generating facility in the vicinity of LSD 10-52-4-W5M. The site is located near existing TransAlta generating facilities near Wabamun. Sundance 7 will be a combined cycle power plant consisting of two gas turbine-generators (GT) of

Vladimir LopezTransmission



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approximately 295 MW capacity (345 MVA, 0.85 p.f.) and a single steam turbine-generator (ST) of approximately 345 MW (405 MVA, 0.85 pf). The gross output is approximately 943 MW with an STS capacity of 850 MW. The maximum gross capacity at an average summer temperature of 15.3 degrees Celsius is 818 MW and the net output is 797 MW.

The anticipated in service date is June 2018 and the commercial operation date is targeted as January 2019.



Calgary, AB T2P 0L4

403-539-2819vladimir.lopez@ae

so.ca

Project 1478 Rocky Mountain Power ASSISt

240 10/2018 1 Rocky Mountain Power Inc. submitted a System Access Service Request (SASR) to the AESO on September 4, 2013 proposing the development of a compressed air energy storage (CAES) facility. The project is known as Alberta Saskatchewan Intertie Storage (ASISt) and is located in the Lloydminster planning area (AESO planning area 13).

The ASISt project is proposed as a 135 to 160 MW compressed air energy storage project using salt caverns for the energy storage with potential up to 300 MW. The air cavern storage will be designed for 24 to 60 hours of continuous operation at rated capacity. ASISt is planned to connect to a new 240 kV station proposed in the AESO’s Central Region Plan.

The ASISt CAES project will be directly connected to the Alberta grid through the planned 240 kV system development in Central East region of Alberta. Part of the design concept is to have a second 230 kV line segment to the Saskatchewan grid for alternate switching to enable connections to the Saskatchewan grid.

In addition to energy storage, ASISt is planned to provide a portfolio of ancillary services (while generating or compressing) and special system services such as black start, load following, voltage regulation, etc. and potentially a virtual intertie to Saskatchewan (i.e. the ability to compress from one region while simultaneously generating into the other region).

The facility will potentially have the capability to operate as “Power Source” (generating) or as “Power Sink” (compressing).

The requested in service date is October 1, 2018.

Tana LailanProject Co-ordinator

Alberta Electric System Operator

(AESO)2500, 330 – 5th

Avenue SWCalgary, AB T2P

0L4403-539-2857

[email protected]

Noxon Rapids Turbine Upgrades

+ 42 MW

6/2012 .2 Avista’s Power Supply function is engaged in turbine blade upgrades on Noxon Rapids units #2, #3, and #4. These upgrades will add an additional 14 MW’s respectively to the existing turbine capacities. The total electrical output of the Noxon Rapids project will be a maximum of 557 MW. This electrical limit does not consider any hydraulic limitations associated with the greater Clark Fork River project (which includes Cabinet Gorge and Noxon Rapids).

Tracy Rolstad(509) 495-4538

(AVA)

Major Generation Addition (> 200 MW)

2015-2023 .4 Plant Capacity In Service StatusDate

Guihua Wang(604) 699-7367


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Waneta Expansion G1 167.5 MW April 2015Waneta Expansion G2 167.5 MW April 2015Mica G5 500 MW Jan. 2015 in serviceMica G6 500 MW Oct. 2015Rev G6 500 MW April 2029 project postponedSite C G1 183.3 MW Dec. 2023Site C G2 183.3 MW Dec. 2023Site C G3 183.3 MW Dec. 2023Site C G4 183.3 MW Dec. 2023Site C G5 183.3 MW Dec. 2023Site C G6 183.3 MW Dec. 2023Forrest Kerr IPP 211.4 MW July 2014 in service

(BCHA)

Vancouver City Central 230 kV Transmission Project

230 April2014

.2 Currently in implementation phase, this project constructs a new substation and new transmission lines.New station: Mount Pleasant SubstationNew lines: 2L20 (3.4 KM) – Cathedral Square to Mount Pleasant

2L44 (4.8 KM) – Mount Pleasant to Sperling

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Dawson Creek / Chetwynd Area Transmission (DCAT) Project

230 6/2015 .2 The Dawson Creek / Chetwynd Area Transmission Project (DCAT) consists a two 60 km 230kV lines running from a new 230 / 138 kV substation named Sundance Substation (SLS) to Bear Mountain Terminal (BMT) and a new 138 kV line from BMT to Dawson Creek Substation (DAW). This project would provide additional transmission capacity into the Dawson Creek area to support new unconventional gas production loads.

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Northwest Transmission Line (NTL) Project

287 7/2014 .2 Currently in implementation phase, the Northwest Transmission (NTL) Project consists of approximately 340 km of 287 kV transmission line from the Skeena Substation near Terrace to a new substation at Bob Quinn and a series compensation capacitor bank (35%) at Bob Quinn. The NTL will provide infrastructure for connecting new sources of generation, future industrial development and communities in the area.

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Fraser Valley West Area Reinforcement (230 kV)

230 6/2015 .2 Construction of a new substation and new transmission lines.New station: Fleetwood SubstationSplitting 2L75 from Ingledow to McLellan to 2 lines.New lines: 2L75 (8 KM) – Ingledow to Fleetwood

2L81 (8 KM) – Fleetwood to McLellan

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Series Compensation on Southern Interior 500 kV lines (SISC)

500 10/2019 .2 The project is to add one 500 kV series capacitor station, on 5L98 transmission line from Nicola to Vaseux Lake. This project is still in definition phase.

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New ILM 500 kV line 500 11/2015 .2 The new line is planned to provide incremental transmission transfer capability from the Interior of British Columbia to the load centers in the Lower Mainland. This new 500 kV transmission circuit, 5L83, will be approximately 250 km long and will run

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between the Nicola and Meridian substations. 5L83 will be 50% series compensated at new Ruby Creek Capacitor Station near Agassiz.Technical planning studies have been completed and the project is currently in the execution phase.

Nicola Station Reconfiguration

Spring2014

.2 A project is planned to reconfigure Nicola station, a critical station that collects powerflows from the South Interior before transmitting the power to Lower Mainland, toprevent total lost of the station and increase the reliability of the transfer of power tothe Lower Mainland. Definition work was initiated for this project.

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Metro North Area Reinforcement (230 kV) – Alternative 3

230 10/2019 .2 The planning study is in progress and the following identified is only one alternative, may subject to changes:1) Construct a new 21.5 kM, 230 kV circuit from Meridian to Horne Payne (2L18).2) Extend an underground circuit (2L51) from Barnard to Mount Pleasant.3) Add 203 kV – 60 MVAR switchable shunt reactor on dedicated 230 kV line position at Camosun

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West End 230 kV Substation

230 10/2021 .2 The planning study is in progress and the following identified is only one alternative, may subject to changes:New station: West End substationSplitting 2L32 from Horne Payne to Cathedral Square to 2 lines2L32 (7.5 KM) – Horne Payne to Murrin2L30 (1.2 KM) – Murrin to Cathedral SquareReterminate 2L33 from Cathedral Square to West End (by extending 2.4 KM of newunderground transmission)Reterminate 2L3 from Horne Pane to West End (by extending 10.5 KM of new underground transmission). As a result, 2L3 becomes a mix of overhead and underground transmission from Walter to West End.Add new underground transmission from Cathedral Square to West End (2 KM)

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Transmission Lines from Site C to Peace Canyon

500 4/2023 .1 At preliminary planning stage, this project is to build two 500 KV lines from Site C to Peace Canyon, to accommodate site C new generation.

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Meridian T2 Addition 500/230 In-Service .1 Install a new 500/230 kV 1200 MVA transformer at Meridian Substation. Meridian substation is located on Westwood Plateau in Coquitlam and it is the major supply source to Metro North subsystem serving downtown Vancouver, Burnaby and Tri-cities area loads.

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Kitmat Modernization Project

287 3/2015 .2 Kitmat Modernization Project consists of rebuilding the Kitimat smelter and adding35% series compensation on the two Kimano to Kitmat 287 kV transmission lines by building a series capacitor station near Kitmat. Five 287/100/28 kV 219 MVA regulating transformers will be installed.

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Series Compensation Increase (from 50% to 65%) at KDY and MLS Stations

4/2023 .2 At preliminary planning stage, this project is to increase series compensation level at 5L1, 5L2, 5L7 at KDY, 5L11,5L12, 5L13 at MLS from 50% to 65%, to accommodate site C new generation.

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Prince George Terrace Compensation (PGTC)

October 2018

.1 At preliminary planning stage, this project is to install 65% series compensation at 5L61, 5L62, 5L63 from WSN to SKA substation, to accommodate LNG loads in North Coastal BC region.Add 2 x 130 MVAR shunt capacitor at GLN500.

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Iskut Expansion project 287 In-Service .1 This project is to construct a 92 km 287 kV transmission extension, from the planned NTL line (Item 7) terminal Bob Quinn substation. The transmission line would terminate at a new substation at Tatooga Lake and a 16 km 25 kV distribution line continuing to Iskut.

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Forrest Kerr IPP 211.4 2014 .1 Coast Mountain Hydro proposes to develop a run-of-river hydroelectric facility North ofStewart. Total plant rated output is 211.4 MW.

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Vancouver Island Cable Project

230 2015 .1 Add a new 230 kV cable circuit (2L142) from George Tripp to Horsey and add one 150 MVA – 230/138 (T14) transformer at George Tripp.

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Arnott 230/25 kV transformers capacity upgrade

230/25 10/2017 .1 Replace T11 & T12 with 2 new 150 MVA transformers to supply the load growth in theTsawwassen/Delta area.

Terrace - Kitimat Transmission Project

2019 .1 Previously reported as Minette to Skeena Line Rating Upgrade (2L99). This project would replace the 60km transmission line that runs between Skeena and Minette substations and the 3km transmission line that runs between Minette and Kitimat substations with new lines on a new right of way.

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Skeena Substation Upgrade 500/287/12.6 10/2019 .1 Add Skeena T3 (500/287/12.6) transformer due to new Kitimat LNG2 load. “

Bob Quinn SVC Addition 4/2019 .1 Add +100/-40 SVC for system reinforcement to accommodate NTL (2L102) new mining loads.

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Add series compensation on circuit 2L102

4/2019 .1 Add series compensation on NTL (2L102) near Skeena due to new mine loads “

Horne Payne Substation Updrade

10/2018 .1 Add 2 x 230/25 kV – 150 MVA transformers at Horne Payne Sub “

Peace Region Electric Supply (PRES) Project – Alternative 2

10/2018 .1 Construct a 2nd 22.8 KM 230 kV overhead transmission line from GMS to Dokie Terminal. Construct a 64.1 KM 230 kV transmission line from Dokie Wind Terminal to Sundance. Replace GMS T13 & T14 with 2 new 600 MVA 500/230 kV transformers.

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In Preparation For The Site C Generation Project

2023 .1 Add 250 MVAR switchable shunt capacitor at Williston 500 kV substationAdd static var compensator (SVC +250/-150 MVAR) at Williston

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Merritt Area Transmission (MAT) project

138 7/1/2014 This project is to construct a new 138 kV radial transmission line from the existing Highland Substation to a new substation in Merritt, to meet the increased demand for power in the Merritt area.

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Revelstoke Unit 6 Installation

500 11/1/2018 This project is to supply and install an approximately 500 MW unit in the existing empty Unit 6 bay at Revelstoke Generating station to add capacity to the BC Hydro system.

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Sukunka MSC addition 230 1/2017 .3 Add a 230 kV, 45 MVAR MSC at Sukunka due to load increase.

Mount Lehman Substation Upgrade

230 10/2017 .3 Replace existing 230 kV transformers with 2 – 150 MVA and add2 x 10 MVAR 25 kV capacitors.

West of McNary Reinforcement (WOMR) Project

500 11/2015 1 The purpose of West of McNary Reinforcement (WOMR) Project is to increase the transfer capability across the West of McNary (WOM), West of Slatt (WOS) and West of John Day (WOJ) paths that will enable BPA to provide transmission service for proposed renewable energy from the McNary area to Northwest load centers west of the Cascade Mountains, to the California-Oregon (COI) AC Intertie, and to the Pacific DC Intertie (PDCI). WOMR is one of multiple BPA projects being developed as a result of BPA’s 2010 Network Open Season (NOS).

The WOMR Project was divided into two phases.

1. A new 79 mile McNary-John Day 500-kV line with additions to the 500 KV yards atBPA's McNary and John Day Substations,2. A McNary-Ross 345-kV line re-sag,3. A Big Eddy-Ostrander 500-kV line re-sag,4. A John Day-Big Eddy 500 kV #2 line re-conductor (approximately 3 miles),5. Two 28.8 MVAR (rated at 242 kV) 230-kV shunt capacitors addition at Jones Canyon, and6. West of McNary Reinforcement RAS additions.Phase 2 included:1. A new 500 KV switching station called Knight Substation, located near Goldendale,Washington at tower 73/1 on the BPA Wautoma-Ostrander 500 kV line,2. A new 28 mile, 500 kV transmission line connecting BPA’s Big Eddy Substation nearThe Dalles, Oregon to Knight Substation,3. Additions at BPA's Big Eddy 500 KV Substation4. A Wautoma - Ostrander 500-kV line re-sag, and5. A Wautoma 500 kV 300 MVAR shunt reactor (in service)Phase 1 was commissioned in February, 2012.2.1.2 Project Planned Operating DatePhase 2 – November 20152.1.3 Project StatusThe environmental review for this project was completed September 2011.

Eric Heredia360-619-6846

(BPA)

North Cross Cascade 500 kV Line Project

500 2024 .05 Consisting of a Chief Joe – Monroe 500 kV line, this project is associated with load service and is on hold until load growth supports construction.

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Lower Valley Area Reinforcement Project

345/138/115 9/2017 1 A 345/161-kV transformer at PacifiCorp’s (PAC) Goshen Substation currently serves the Lower Valley area. Three transmission lines serve load out of Goshen. The Goshen-Drummond 161-kV line serves mostly Fall River loads and provides back-up service to Lower Valley. The Goshen- Swan Valley 161-kV line serves most of the Lower Valley load. The Goshen-Palisades 115-kV line serves the Palisades Generating Plant and some Lower Valley load. BPA constructed a second Swan Valley-Teton line in 2000 and upgraded the Goshen-Drummond line to 161-kV in 2002. These upgrades increased the reliability of the Fall River system and helped support load growth in the Jackson Hole area, but did not increase the transmission capacity to the southern part of Lower Valley’s system. Capacitor banks have been installed atTarghee, Tincup, Teton, and Madison Way. PAC has constructed a new 345/138-kV Three Mile Knoll Substation a couple of miles north of their existing Caribou switching station. This new substation includes a new 345-kV interconnection with Idaho Power. Idaho Power’s Bridger-Goshen 345-kV line is looped into the new Three Mile Knoll 345/138-kV Substation which includes two new 345/138-kV, 650 MVA transformers. For the Lower Valley Area reinforcement Project, BPA will construct Hooper Springs 200 MVA 138/115-kV Substation adjacent to PAC's Three Mile Knoll Substation.

Debby Hammack360-619-6848

(BPA)

I-5 Corridor Reinforcement Project

500 2018 1.5 1100-1400 MW

This purpose of this project is to increase the transfer capability of the I-5 Corridor in the vicinity of Southwest Washington and Northwest Oregon. This load service area includes the cities of Portland, Oregon and Vancouver, Washington, which include high concentrations of industrial, commercial, and residential load. The generating resources serving this area are a mix of hydro and thermal plants. This proposed project includes a new 500 kV transmission line (approximately 70 miles) between Castle Rock, Washington and Troutdale, Oregon. This would require the constructionof a new 500 KV switching station in the vicinity of Castle Rock Washington and the expansion of BPA's Troutdale Substation near Troutdale, Oregon. The project is projected to increase capacity by approximately 1100 to 1400 MW on the South ofAllston path..

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Central Ferry-Lower Monumental (Little Goose Reinforcement Project)

500 12/2015 1 The purpose of the Little Goose Area Reinforcement Project is to increase the transfer capability West of Lower Granite that will enable BPA to provide transmission service for proposed renewable energy from the Little Goose area to Northwest load centers west of the Cascade Mountains, to the California-Oregon (COI) AC Intertie, and to the Pacific DC Intertie (PDCI). This project is one of several BPA projects being developed as a result of BPA’s 2010 Network Open Season (NOS). The Little Goose Area Reinforcement Project includes a new 38 mile 500kV Transmission line from Central Ferry substation to Lower Monumental substation. The project also includes a shunt 300 MVAR reactor at Central Ferry Substation and reconfiguration of Lower monumental substation to breaker and half configuration.

Chuck Matthews(360) 619-6833

(BPA)

Raver 500/230 kV Transformer

500/230 2016 1 This purpose of this project is to improve load service reliability to the Puget Sound area and Northern Intertie. The Puget Sound and Northern Intertie (PSANI) area transmission system is a winter peaking system that primarily consists of the interconnected systems of BPA, Puget Sound Energy (PSE), Seattle City Light

Berhanu Tesema(360) 619-6819

(BPA)


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(SCL), Snohomish PUD (SPUD), Tacoma Power BPA TS TPP 2015-006 Page 5 Utilities (TPU), and British Columbia Transmission Company (BCTC), which serve Seattle,Tacoma, Olympia, and surrounding areas. The Puget Sound Area is a highly congested network due to large concentrations of load and varying local generation patterns, which are further stressed by transfer levels between the US and Canada on the Northern Intertie. Winter peak loads are typically the worst, combined with lower local generation patterns and high exports to Canada. Through a joint Columbia Grid study effort, several system fixes have been agreed to by BPA, SCL, and PSE. They include several 115kV and 230kV PSE and SCL line upgrades, a BPA RAS upgrade and a new BPA 500/230kV transformer. The PSANI Reinforcements projects are scheduled to be completed in full by fall 2018. The Raver 500/230kV transformer addition is scheduled for completion in fall 2016. The most limiting outage for the South Puget Sound area is a common corridor N-2 Tacoma-Raver #2 and Raver-Covington #1, which results in loss of two 500/230kV banks in the area. Other N-2 common corridor outages result in a loss of two 500/230kV banks either at Tacoma,Covington, or Maple Valley substations and cause severe loading on the remaining transformerbanks. Once the Raver 500/230kV transformer addition is completed, the severity of these N-2 outages will be greatly reduced, mitigating overloads, and resulting in greater reliability to load service and operational flexibility for the Southern Puget Sound Area. The project also helps to reduce the risk of curtailment or redispatch events in the Puget Sound Area for certain outage conditions.

The plan of service is to install a 1300 MVA transformer at Raver substation. A new 230kV substation will be developed adjacent to the existing 500kV substation. The high side of the new transformer will terminate at Raver 500 KV. The Tacoma-Raver #1 and #2 500 KV lines are currently jumpered together and operated as double circuit 500kV for about 10 miles from Raver until it reaches Covington substation. The corridor for both circuits runs adjacent to Covington 230kV station and in the same corridor as the Raver-Covington #1 and #2 500 KV circuits. The project will reconfigure the Tacoma-Raver 500 KV lines by removing jumpers and reterminating the Tacoma-Raver #2 circuit into Covington 230 KV and Raver 230 KV Substations. The Tacoma-Raver #2 line will be renamed and operated as the Raver-Covington #3 230 KV line. The plan of service also requires reconfiguring the Covington 230 KV bus, adding a new sectionalizing breaker and 2 bus tie breakers.

Schultz-Raver #3 & #4 500 Series Capacitors Project

500 2021 .5 The purpose of this project is to increase transfer capability across the West of Cascades North Path and provide increased load service to the Puget Sound area.This project adds 500 kV series capacitors at Schultz Substation on the Schultz-Raver 500 kV #3 and the Schultz-Raver 500 kV #4 lines.

Berhanu Tesema(360) 619-6819

(BPA)

PDCI Uprate Project 2016 (Celilo DC Upgrade

Only)

.5 3800 MW The Pacific DC Intertie (PDCI) provides a direct current (DC) intertie between The Dalles Oregon, and Los Angeles, CA. The current PDCI is rated at 3100 MW.BPA is working to complete the WECC Path Rating Processes to increase the rating of the Pacific Direct Current Intertie (PDCI), Path 65, from its present rating of 3100 MW to 3220 MW for north to south power flow. The south to north rating will remain

Kyle Kohne360-619-6839

(BPA)


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unchanged at 3100 MW. This increase will be realized by increasing the operating voltage at the northern terminal, the Celilo Converter Station, from +500 kV to + 520 kV while maintaining the present current rating of 3100 A. The voltage at the southern terminal, the Sylmar Converter Station, will increase by approximately 20 kV, which is within the capability of existing terminal equipment.

The Celilo Converter Station is over 40 years old and aging systems and equipment failures are contributing to deteriorating reliability of the PDCI. A comprehensive BPA study of in-kind equipment replacements required to sustain acceptable performance over the next 30 years revealed that the present value of the investment would exceed the cost of replacing the entire converter station with a modern two converter terminal. Therefore, complete replacement of the existing converters with two modern converters is underway.

Installing all new converter equipment at Celilo would also provide an opportunity to upgrade the terminal power rating for a relatively low incremental cost which could support additional PDCI capacity. To explore this possibility, BPA and Los Angeles Department of Water and Power (LADWP) undertook a study of PDCI upgrade alternatives. The study found that the Sylmar converters have the inherent capacity to support up to 3800 MW (input at Celilo) for north to south power flows. The study also examined the capability of the Celilo-Sylmar DC transmission line and found that extensive upgrades would be required for the portion of line from the Nevada-Oregon Border (NOB) to Sylmar which is owned by LADWP and the other Southern Owners (Southern California Edison CE and the cities of Burbank, Glendale and Pasadena). The Celilo-NOB portion of the line owned by BPA was designed with higher groundclearance and would require less costly upgrades including insulator replacement and shunting of compression fittings to support up to 3800 MW.

In December 2011, BPA Executive Management approved proceeding with the Celilo complete replacement option with the new terminal designed to support a full 3800 MW level capable of operating at 560 kV and 3410 A. Celilo’s converter rating and Celilo-NOB line capability beyond 3220 MW to 3800 MW would preserve the opportunity for future upgrade of the PDCI to more fully utilize the inherent capacity of the existing Sylmar converters. However, because of the high costs and uncertain benefits for the Southern Owners, they are unable to support a PDCI uprating beyond the 3220 kV level at this time.

John Day Substation – Golden Hills 200 MW (G0099-2)

200 10/1/2013 .5 John Day Substation is a major 500 KV switching station east of The Dalles Oregon. It serves as the northern terminus of the California-Oregon AC Intertie (COI). It integrates the generation from the US Corp of Engineers John Day Dam. It the next major 500 KV substation west of Slatt Substation. In 2007, a 230 KV yard was added to interconnect Portland General Electric's (PGE) 400 MW Bigelow Canyon wind project. PGE sold 200 MW of their original 600 MW project to BP Alternative Energy. This remaining 200 MW is a wind generation project calledGolden Hills.

Chuck Matthews360-619-6833

(BPA)

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1 (aka North Hulburt Wind) (G0118 and G0291)

1 – 2662 – 1903 - 190

12/20115/1/20125/1/2013

Phase 1 (266 MW) energized in 12/1/2011. Phase 1 is called North Hulburt. Phase 2 (190 MW) is planned for 2012, and Phase 3 (190 MW) for 2013. The LGIA has been executed and we are planning the first synchronization for July 15, 2011.

Montague I 202 12/2011 .05 The generation project has executed or is in the process of executing a Large Generation Interconnection Agreement (LGIA) with BPA. Technical interconnection studies can be obtained by signing a non-disclosure agreement with BPA.

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Lower Snake Wind 341 2/2012 .05 The generation project has executed or is in the process of executing a Large Generation Interconnection Agreement (LGIA) with BPA. Technical interconnection studies can be obtained by signing a non-disclosure agreement with BPA.

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Miller Ranch Wind 150 6/2012 .05 The generation project has executed or is in the process of executing a Large Generation Interconnection Agreement (LGIA) with BPA. Technical interconnection studies can be obtained by signing a non-disclosure agreement with BPA.

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Golden Hills Wind 200 10/2013 .05 The generation project has executed or is in the process of executing a Large Generation Interconnection Agreement (LGIA) with BPA. Technical interconnection studies can be obtained by signing a non-disclosure agreement with BPA.

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Morrow Flats Project 230 2015 .1 This is a new 230/115 kV substation approximately 3 miles east of BPA’s Boardman Substation.This substation is needed to provide load service in the Boardman-Umatilla area.

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Montana to Washington 500 2018 .5 In 2010, Bonneville Power Administration (BPA) conducted a Network Open Season (NOS) process to help manage its queue of requests for long-term transmission service. During the NOS process, utilities and power generators (including wind generators and power marketers) requested the use of BPA's transmission system to transmit their power.The studies found that there was not enough available transmission capacity to accommodate all requests for long-term service from BPA's Garrison Substation in Western Montana to load centers west of the Cascades and to market hubs serving the entire Northwest power market. Wind generation facilities built and proposed in the region have greatly increased the amount of planned generation in Montana seeking load and markets in the Northwest. As a result, BPA is proposing several reinforcements on BPA's transmission system at the Garrison Substation, Hot Springs Substation, Bell Substation, Dworshak Substation, and on the Hatwai Substation. Additionally, reconductoring is being proposed totaling 12 miles on the Dworshak-Taft No. 1 500-kilovolt (kV) line and a new series compensation substation is being proposed along the Garrison-Taft No. 1 and No. 2 500-kV lines, both of which would allow BPA to accommodate the requests for transmission service in this area. These reinforcements would increase the firm east-to-west transfer capability of the West of Garrison and West of Hatwai paths by primarily increasing the series compensation in existing 500-kV lines in the area..

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Rapids-Columbia 230-kV 230 2017 57 Douglas County PUD is constructing a new 230-kV transmission line to connect its Dennis Baker


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Transmission Line Rapids Switchyard with BPA’s Columbia Substation. The conductor will be 1590 ACSR/TW and is expected to have a Summer rating of 589.5 MVA, a Winter rating of 769.2 MVA, an Autumn rating of 690.3 MVA, and a Spring rating of 671.2 MVA. The new 230-kV circuit breaker at Rapids Switchyard will be rated for 3000 A of continuous current. The new 230-kV line disconnect switch at Rapids Switchyard will be rated for 2000 A of continuous current.

(509) 881-23234(DOPD)

Montana Power Station (MPS)

115 5/2016 5/2017

The MPS facility is currently under construction in east El Paso. MPS willconsist of four (4) LMS-100 units, with each unit having a maximum summerrating of 88 MW and a maximum winter rating of 105 MW (adjusted to El Paso’saltitude). Two of the four generating units will be in-service by May 1, 2015.The third unit has a scheduled in-service date of May 1, 2016, and the fourth unithas a scheduled in-service date of May 1, 2017. When all four units are inservice, the MPS facility will have a maximum generation rating of 352 MW inthe summer and 420 MW in the winter.

David Gutierrez(915) 543 5711

(EPE)

Columbia-Larson 230 kV line

230 2014 1.0 This project will involve in construction of a new 30-mile 2-1272 ACSR 230 kV line from Columbia to Rocky Ford, open the existing Larson-Rocky Ford 230 kV line at Rocky Ford during normal conditions, then tie the new line to the existing Larson-Rocky Ford circuit, making a new Columbia-Larson 230 kV line. The purpose of this project is to provide additional transmission capacity to serve projected load growths. The project has been publicly announced and is scheduled to be in-service in early CY 2014.

Ken Che(509) 754-5033

(GCPUD)

King 230/138 kV Project 230/138 2012 .1 A new 230/138 kV 300 MVA transformer will be installed in the existing King 138 kV substation to accommodate approximately 135 – 150 MW of additional wind generation in the Hagerman area. The King substation will be interconnected to the 230 kV transmission system by looping in-and-out the existing Midpoint-Dram 230 kV line. Because the wind generation projects, which the King 230/138 kV project is to accommodate, have been slow in their development, the in-service date has been deferred to spring 2012. This project has no significant impact on the WECC transmission system.

Mark D. Hanson208-388-2253

(IPC)

Hemingway – Boardman Transmission Project

500 2018 2 1000 MW 3Idaho Power’s 2013 Integrated Resource Plan, a biennially-produced 20-year resource plan for meeting our electric service obligation, identified Pacific Northwest generation resources as one component of the preferred resource portfolio. Requirements of Idaho Power’s wholesale transmission customers are also increasing. The existing transmission system connecting Idaho Power to the Pacific Northwest is fully subscribed during high-demand periods. To meet the need for more transmission capacity with the associated improvement in system reliability, Idaho Power plans to build a 500 kV transmission line from southern Idaho to northeast Oregon.The plan of service is to construct a 300 mile 500 kV transmission line from Hemingway station in southwestern Idaho to a new station, Grassland or Longhorn depending on final routing, near the existing Boardman Power Plant in northeastern Oregon. The Hemingway-Boardman Transmission Line Project’s proposed and alternative routes are shown in Figure 1. The Hemingway-Boardman Transmission

Mark D. Hanson208-388-2253

(IPC)


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Line Project scheduled in-service date will be no earlier than 2020.Path 14 transfer capacity ratings with the Hemingway-Boardman Transmission Project facilities are expected to increase to 2250 MW west to east (a 1050 MW increase) and a 3400 MW east to west (a 1000 MW increase). Project facilities are listed below:

Hemingway-Boardman 500 kV line, 300 miles with approximately 50% seriescompensation (split equally at each end); the western termination will be at theGrassland switching station near the Boardman Power PlantHemingway 500 kV Line Terminal with Shunt Reactors and Series CapacitorGrassland/Longhorn 500 kV Line Terminal with Shunt Reactors and Series Capacitorand 150 Mvar, 500 kV Shunt CapacitorHemingway-Bowmont #2 230 kV line, 13 miles with single 1590 MCM ACSR“Lapwing” conductorBowmont-Hubbard 230 kV line, 16 miles with single 1590 MCM ACSR “Lapwing”conductorBowmont, 2nd 230/138 kV 300 MVA Auto-Transformer

The Hemingway-Boardman Transmission Project will conform to the NERC TPL-001-4Standard and other corresponding regional System Performance requirements at the time, if any, and the WECC “Overview of Policies and Procedures for Project coordination Review, Project Rating Review, and Progress Reports.”

A Hemingway-Boardman Transmission Project Comprehensive Progress Report (Phase I) was released for comment in November 2008 and was granted Phase II status in March 2009. Idaho Power began the Phase II study process in 2011; the initial kick-off project review work group meeting was held on June 22, 2011, and the second project review group meeting was held on November 15, 2011. The third project review group meeting was held on March 22, 2012. On August 10, 2012, a conference call/webinar was held to solicit comments on the initial Phase II draft report. In August 2012, Idaho Power submitted the Idaho-Northwest Up-rate, Hemingway-Boardman 500 kV Transmission Project Phase II Report to WECC and was granted Phase III status on November 29, 2012 with an Accepted Rating of 2250 MW west-to-east and 3400 MW east-towest. On December 19, 2014, the BLM released the Draft Environmental Impact Statement (DEIS) for the Boardman to Hemingway Transmission Line Project (B2H). The DEIS reflects the analysis of the potential effects of the Proposed Action and alternatives, including a no-action alternative. The DEIS release date began a 90-day public comment period that will end on March 19, 2015.

Midpoint T232 230/138 kV Transformer Addition Project

230/138 6/2020 .1 A second 230/138 kV 200 MVA transformer will be installed at the Midpoint substation due to anticipated load growth in the Magic Valley area. The scheduled/projected in-service date is late 2019 to early 2020. This project is intended for load service and has no significant impact on the WECC transmission system.

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Midpoint West Upgrade Project

230 2015 .25 The 230 kV looped connection in and out of the Rattlesnake switching station, currently installed in the Midpoint-Boise Bench 230 kV #2 line, will be relocated to the Midpoint-Boise Bench 230 kV #1 line between DRAM and Justice. Both 230 kV lines, as well as the Midpoint-Boise Bench 230 kV #3 line, are all part of Idaho's internal Midpoint West path. In addition to the relocation, the series capacitor banks at Midpoint on the #2 and #3 lines will be replaced and increased to 70% comp each. These upgrades are being done to gain approximately 275 MW of east to west transfer capability across Midpoint West with the added benefit of approximately balancing the flows on the Midpoint-Boise Bench 230 kV #2 & #3 lines. We expect the in and out relocation for Rattlesnake to be completed by the end of May, 2015. We expect the series capacitor bank replacements to be completed by the end

Pearl Transmission Substation

230 5/2019 .3 Because of the addition of the Langley Gulch Generation Project in the Treasure Valley (see Langley Gulch Generation Project above) and developing the Hemingway 500/230 kV station and its associated 230 kV transmission integration into the Treasure Valley (see Hemingway-Boardman Transmission Project above), the Pearl Transmission Substation project has been deferred beyond Idayho Power’s 10-year planning horizon..

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Midpoint T232 230/138 kV Transformer Addition Project

230 June 2020 .1 200 MVA A second 230/138 kV 200 MVA transformer will be installed at the Midpoint substation due to load growth in the Magic Valley area. The scheduled/projected in-service date is June 2020. This project has no significant impact on the WECC transmission system.

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Lucky Corridor Transmission Project

230/115 2016 2 850 MW 0 0 0 0 0Lucky Corridor, LLC provided an initial progress report on December 19, 2012. Lucky Corridor, LLC is developing a transmission project to deliver renewable and gas generation from northeastern New Mexico to markets in the west. The Lucky Corridor Project is designed as a 230 KV upgrade to an existing 93 mile 115 KV transmission line between Gladstone and Taos substations. The new line will use the existing 115 KV rights of way and will be constructed as a double circuit 230 kVtransmission line. Also included in the Project are upgrades to the Taos to Ojo 345 KV line and required lower voltage lines.

Lynn Chapman Greene

(303) 681-3073Lucky Corridor

500 kV Upgrade Project 500 2018102 3000 3

16 0 0 0 0 0500 kV Upgrade: Series compensation system will be increased as needed toachieve new capacity. A Supplemental Progress report is attached showingnew capacity as 3000 MW. The earliest operation date is 2018

Chelsea Loomis406-497-3140

(NWMT)

Path 18 Upgrade 230 Completed

2 383 MW 3 Path 18 Upgrade: Path 18, Montana to Idaho, will be upgraded by 46 MW.The new capacity on this 230 kV line will be 383 MW. A SupplementalProgress report is attached. The earliest operation date is 2014.

Chelsea Loomis406-497-3140

(NWMT)

WKN Wind Project 396 230 On Hold 2 WKN: The Feasibility, System Impact, and Facility Studies have beencompleted. An LGIA was signed on December 29, 2010. A SupplementalProgress Report is attached for this 396 MW wind project. Project issuspended per customer's request.

Frank Kraatz312-848-1914

(WKN Montana II, llc)


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Jawbone Wind Project 460 230 On Hold 2 Jawbone Wind: The Feasibility, System Impact, and Facility Studies havebeen completed. An LGIA was signed on November 5, 2012. ASupplemental Progress Report is attached for this 460 MW wind project.Project is suspended per customer's request.

Stacy Gasvoda406-565-2870

(Jawbone Wind Farm, LLC)

Mountain States Transmission Intertie Project

500 2013 3 1500 2 The Regional Planning Project Review for this project was begun on 5/17/07. The proposed project consists of a new 500 kV line between southwestern Montana and southeastern Idaho. The main purposes for the project will be to meet requests for transmission service from customers and relieve constraints on the high-voltage transmission system in the region. The Regional Planning Project Review Report for this project was distributed for review on 2/14/08 with a review deadline of 3/14/08. On 4/23/08, the MSTI project successfully completed Regional Planning. Currently this project is in Phase II of the WECC 3-Phase Rating Process.

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TOT 4A Voltage Support Project

230 2016 1.1 The following facilities have been identified for Wyoming voltage support: Atlantic City 230 kV, 15 MVAr Capacitor (In-service: October 2010) Riverton 230 kV, 30 MVAr Capacitor (In-service: August 2010) Midwest 230 kV, 30 MVAr Capacitor (In-service: October 2010) Dynamic voltage control in the Miners Area has been superseded by

Standpipe 230 KV Synchronous Condenser project-Projected in-service date for (2016)

Craig Quist801-220-4264

(PAC)

Wallula to McNary 230 kV (#2) Transmission Line (December 2017)

230 12/2017 1 2 The Wallula to McNary 230 kV #2 line would be a single circuit transmission line with line terminals at Wallula and McNary substations.

Phase 2 studies are being performed; when complete they will be reviewed by the project review group.

This project has impacts to other regional facilities most notably BPA as the project has a terminal at BPA’s McNary Substation. Phase 2 studies are being performed and when complete will be reviewed by the project review group.

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Whetstone 230/115 kV Substation

230/115 2015 .1 Construct new 230 to 115 kV in the White City Oregon vicinity with a 250 MVA transformer. This substation will tap PacifiCorp’s existing 230 kV line between Meridian and Grants Pass Substations. The project is intended to provide load service redundancy.

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Current Creek 550 2016 .05 Planned new generation.

Union Gap 230/115 kVTransformer Addition

230/115 2017 .1 250 MVA This project will construct a third 250 MVA transformer at Union Gap. “

Vantage-Pomona Heights 230 kV Line

230 2018 1 This project will construct a new 230kV line between the Vantage and Pomona Heights 230kV buses in Washington State.

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Gateway Central 500/345/138 2010-2021 1.2 To meet the increasing demand of northern Utah, future Gateway Central “


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Transmission Project transmission facilities are needed. These facilities would provide a link between Gateway West and Gateway South transmission facilities and would provide needed load service to the Wasatch Front.Populus to TerminalExtending from southeast Idaho into northern Utah, the Populus to Terminal transmission line adds a new double-circuit, 345-kilovolt transmission line stretching approximately 135 miles from the Populus Substation built near Downey, Idaho, to the Terminal substation near the Salt Lake City airport. The Populus to Terminal project was placed in service November 19, 2010.Mona (Clover) to OquirrhPacifiCorp is committed to providing safe, reliable, cost-effective power and has proposed a project to establish a new high-voltage transmission line and two new substations in Utah. The line will originate at the Clover substation to be built near the existing Mona substation in Juab County, and run north to the Oquirrh Substation in West Jordan. This project will traverse the areas around the communities of Cedar Fort, Eureka, Grantsville, Mona, Salt Lake City, South Jordan, Stockton, Tooele and West Jordan. The in-service date for this line was May 17, 2013 as noted in Table 5.Oquirrh to TerminalThe line will be located in an existing high-voltage transmission line corridor. It will run from the Oquirrh substation near 10200 South and 5600 West in West Jordan, north to the Terminal substation, located due south of the Salt Lake City international airport. This section of new transmission will link together other new transmission sections – Mona to Oquirrh and Populus to Terminal – to complete the Gateway Central portion of the Energy Gateway Transmission Expansion Project. The in-service date for this line is noted in Table 5.

Gateway West Transmission Project

500/230 2020-2024 6 Please see the Gateway West Transmission Project section in PacifiCorp’s 2015 WECC Annual Progress Report for current Gateway West Transmission Project details. Based on the agreement between PacifiCorp and Idaho Power, executed in early 2012, PacifiCorp (Rocky Mountain Power) will assume responsibility for shepherding all Gateway West transmission facilities through the National Environmental Policy Act (NEPA) process and through the project construction phase.

The Gateway West Transmission Project facilities in the Idaho area are listed below:Kinport-Midpoint 345 kV line (existing), will be split/converted to:Kinport-Borah 345 kV lineBorah-Midpoint 500 kV line (constructed 500 kV/operating at 345 kV)Borah, 500/345 kV 1500 MVA Auto-TransformerPopulus-Borah 500 kV line, 55 milesCedar Hill-Hemingway 500 kV line, 161 miles with approximately 50% seriescompensationCedar Hill-Midpoint 500 kV line, 34 miles (Phase 2)Midpoint-Hemingway #2 500 kV line, 126 miles with approximately 50% seriescompensation (Phase 2)

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Gateway South 500 kV 500 2015-2022 4 2 1 “


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Project See the VI. Gateway South Transmission Project for complete update.

The Gateway South – Stage 1 transmission facilities include a 500 kV transmission line from the proposed Aeolus substation in southeast Wyoming (constructed as part of the Gateway West Project) to the Clover substation in central Utah, and a second 345 kV transmission line from the Sigurd substation near Richfield, Utah to the Red Butte substation near Central, Utah in southwestern Utah. Gateway South – Stage 2 transmission facilities primarily consist of a second 500 kV circuit from Aeolus substation to Clover substation and a 500 kV segment from Clover substation to the Crystal substation in southern Nevada.

Syracuse –Install 345/138 kV #2 Transformer

345/138 5/2021 .1 Install a 345-138 kV transformer (T#6) including (1) 345 kV circuit breaker and (1) 138 kV circuit breaker at Syracuse substation.

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Mid Valley Substation-Replace 345-138kV, 450 MVA with 700 MVA Transformers

345/138 2020 .1 Replace two 345-138kV 450MVA transformers at Mid Valley substation with 700 MVA units.

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Carbon Plant Decommissioning (2015)

Completed

1 The Carbon Plant decommissioning will require the addition of the following facilities: -15/+85 MVAr 138 kV static VAr system (SVS), two 138 kV 15 MVAr capacitor banks with associated breakers at the Mathington substation. The addition of a 138 kV phase shifting transformer (PST) at the Upalco substation and the relocation of the Spanish Fork 138 kV series line reactors to the Upalco substation.

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Snow Goose Project 500/230 2017 1 New 500/230kV substation tapping PacifiCorp’s Captain Jack to Klamath Co-Gen 500 kV line. The 230kV line construction will include looping the existing Klamath Falls to Malin 230kV line into the new substation. The project is only connected to PacifiCorp facilities and is intended to provide load service redundancy

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Pinto #3 Phase Shifting Transformer Addition (2015)

345 12/2015 1 400 MVA Install the third 345 kV, 400 MVA, phase shifting transformer in parallel with the two existing phase shifting transformers in a new bay at the Pinto substation. Improvements include a new transformer pad, extension of bus work, a new 345 kV breaker, protection and control equipment and other new equipment.

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Standpipe - Construct New 230kV Substation (2016)

230 6/2016 1 60 MVAr Significant portions of the Standpipe project are now complete and in-service. The new 230 kV substation called Standpipe is in-service near Miners substation in Wyoming. The existing 230 kV line from Freezeout to Miners to Platte is looped in and out of the new Standpipe substation to form the Freezeout to Standpipe to Platte 230 kV line. The Miners substation is now fed radially from Standpipe. Additional improvements to improve voltage stability and reliability for customers on the south central Wyoming 230 kV transmission system are in-service, including the relocation of an existing 31.7 MVAr shunt reactor from Platte to Standpipe substation, installation of a 25 MVAr capacitor bank at Latham substation, and reconfiguration of the Latham 230 kV bus.Future improvements to be completed under the project include a new synchronous condenser with a steady-state capability of +65/-35 MVAr to be installed at Standpipe

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to provide dynamic reactive support in the region. Additionally, the project will install a special protection scheme to trip local area wind generation for contingency conditions that result in low voltage in the Spence area of the Wyoming 230 kV system. Other future system improvements to be completed under the project include implementation of coordinated shunt reactive device controls at Latham, Platte, Standpipe, Miners, and Foote Creek.

Casper Substation-Install 230/115 MVA transformer

230/115 2015 Install 230/115 kV transformer, Mid Valley Substation - Replace 345-138kV, 450 MVA with 700 MVA Transformers, St. George Substation - Install 345kV/138kV transformer & expand yard and Syracuse – Install 345/138 kV #2 Transformer – projects were granted a Waiver of “Significant Impact” Status in 2014 based on no comments received from WECC Members.

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St. George Substation- Install 345kV/138kV transformer &expand yard

2020 This project includes three related segments necessary to provide anticipated growing energy demands in Southwest Utah and to maintain the Company’s compliance with NERC and WECC reliability standards.The three segments are as follows: Red Butte Substation – ReterminateHarry Allen 345kVLine & Reactor, and Add a345kV Breaker. Construct a New 345kV Yard atSt. George Substation; Install a700 MVA 345/138 Transformer,Line Termination and TwoBreakers (one each @ 345kVand 138kV).

Grants Pass 500/230 kV (Table Mountain 500/230kVSubstation)

500/230 2019 1 New 500/230 kV Substation tapping PacifiCorp’s Meridian to Dixonville 500 kV Line, tapping the existing Meridian-Grants Pass 230 kV line and adding a new 230 kV transmission line from the new substation to the existing Grants Pass 230 kV Substation. The project is only connected to PacifiCorp facilities and is intended to provide load service redundancy. Project name changed to Grants Pass 500/230kV new substation project. This project was granted a Waiver of “Significant Impact” Status in 2014 based on no comments received from WECC members. In-service date updated to 2019.

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Troutdale Substation, Add3- 230 kV circuit breakers

230 2017 1 This project will install 3-230 kV circuit breakers at Troutdale substation, two on the lines to PGE Gresham and Linneman Substations, and one between the two Troutdale substation busses.

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Planned Generation Interconnection Projects (PACE/PACW) – Waiver

20-100 2012-2015 3 ProjectQueue

Location Participants

One - Line

Diagram Status

GenerationCapacity Type

TransmissionFacilities (kV)

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335 ConverseCounty,

WY

PioneerWind

On-file In-progress

49.6 Wind 230 kV

515 BeaverCounty,

UT

Sun Edison

On file Design 80 Solar 345 kV

516 BeaverCounty,

UT

Sun Edison


551 BeaverCounty,

UT

Sun Edison


237-B Skamania,WA

PacifiCorp suspended suspended 25 MW Hydro 230

237-C Skamania,WA

PacifiCorp suspended suspended 25 MW Hydro 230

276 Umatilla,OR

PacifiCorp On file 2015 98.9 MW Wind 230

373 Klamath,OR

PacifiCorp On file 2012 5 MW Solar 500

Horizon Phase II Project 230/115 6/1/2018 0.5 The Horizon Phase II Project mitigates potential overloads to the Horizon 230/115kV transformer for base case and single and double contingencies during peaksummer loading conditions. In addition, this Project mitigates potential overloadson the local area 115 kV system for double contingencies during peak summerloading conditions. PGE plans to build out the Horizon substation breaker‐andone‐half bus configuration and install a second bulk power transformer at Horizonsubstation. The installation of this transformer dictates the need to replaceseventeen 115 kV circuit breakers at Sunset substation to mitigate fault dutyconcerns; a second 115 kV capacitor bank will also be installed at Sunset substationto provide voltage support. To provide a second source to Horizon substation, PGEwill construct a new 4.4 mile 230 kV line segment between Horizon substation andSpringville Junction. This line segment will tie into the existing St Marys‐Trojan 230kV circuit, creating a Horizon‐St Marys‐Trojan 230 kV circuit.

Philip Augustin503-464-7783

(PGE)

Pearl-Sherwood 230 kV retermination

230 6/2019 0.1 PGE and BPA plan to re-terminate the Pearl-Sherwood 230 kV circuit (paralleled Jefferson TW) into separate breaker positions at the Pearl and Sherwood substations. In addition, this project will divide the Pearl-Sherwood section of the three-terminal McLoughlin-Pearl-Sherwood 230 kV circuit (currently paralleled

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between Pearl and Sherwood) into separate breaker positions at the Pearl and Sherwood substations. This will require four new 230 kV breakers, two located at BPA’s Pearl Substation and two at PGE’s Sherwood Substation. When this project is complete, there will be three Pearl-Sherwood 230 kV circuits and a McLoughlin-Pearl-Sherwood 230 kV circuit.

Blue Lake-Gresham 230 kV Line

230 6/2018 0.5 The Blue Lake/Gresham 230 kV Project mitigates potential overloads to theGresham‐Troutdale BPA 230 kV circuit, the Linneman‐Troutdale BPA 230 kV circuit,and the Blue Lake 230/115 kV transformer for double contingencies during peaksummer or winter loading conditions in the Near Term Planning Horizon. PGEplans to construct a six mile transmission line from Blue Lake Substation (Troutdale,Oregon) to Gresham Substation (Gresham, Oregon). In addition, PGE will rebuildthe existing 1.5 mile Blue Lake‐Troutdale 230 kV circuit tower line to accommodatethe new Blue Lake‐Troutdale #2 230 kV circuit. This Project requires the expansionof the 230 kV yard at Blue Lake substation to a six position ring bus and the additionof new breaker positions at Gresham substation and Troutdale substation.

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Trojan-Horizon 230 kV line 230 1/2015 .3 PGE proposes to construct approximately 40 miles of new 230 kV transmission line. The project starts from an existing PGE substation adjacent to the former Trojan plant near Rainier, OR to the new proposed PGE Horizon Substation in Hillsboro, OR. PGE will utilize 28 miles of currently unused right-of-way adjacent to the existing 230 kV lines from Trojan to the Portland area. In addition to the new transmission line, the Horizon Substation will be expanded to terminate the new 230 kV line as well as the installation of a second 230/115 kV, 320 MVA auto-transformer to connect to the adjacent 115 kV PGE Sunset Substation. Also, 2.7 miles of the Sunset-Orenco 115 kV line will need to be reconductored with a 795 ACSS conductor.

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McLoughlin 230 kV Bus Sectionalizing Breaker

230 6/2012 .1 PGE plans to operate the 230 kV bus sectionalizing breaker at the McLoughlinsubstation in Oregon City Oregon in the normally open position beginning insummer 2012. This operational procedure is different from past normal systemoperation.

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Port Westward II generation 225 12/2014 .33 Port Westward Unit 2 went into service near the end of 2014, it utilizes 12reciprocating engines to provide 225 megawatts of flexible peaking capacity to reactto spikes in power demand and fluctuations in power output at renewable energygenerating facilities. The 50SG engines are the first of its generation to run entirelyon Natural Gas. The plant is located adjacent to PGE’s existing natural gas‐firedplants Beaver and Port Westward I, near Clatskanie, Oregon. This Project requiredreconductoring of 8 miles of the Port Westward‐Trojan #1 230 kV circuit generatorlead.

Jefferson County 115 kV Upgrade Phase II

115 2014 .1 The project involves looping Clallam County’s 115 kV transmission line serving the Port Townsend Mill through PSE’s Irondale substation. The project is intended to provide backup transmission to Jefferson County. This project will not occur under PSE’s jurisdiction if Jefferson County’s municipalization of PSE’s energy delivery

Peter Jones425-462-3171

(PSEI)


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system becomes effective in 2013.

Pierce County Transformer Addition and Line Reroutes

230/115 2016 .1 The project is to install a 230-115 kV transformer at Alderton Substation and build 8 miles of 230 kV transmission line from White River Substation to Alderton Substation, as well as re-routing 115 kV lines. PSE requests a waiver of significant transmission project status for this project. The project is intended to provide additional capacity to serve the projected load growth in Pierce County and surrounding areas. It has no impact to the WECC or any neighboring electric systems.

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Eastside 230 kV Transformer Addition and Line

230/115 2017+ .75 The project will involve installation of a 230-115 kV transformer at Lakeside Substation. This project includes rebuilding the Sammamish-Lakeside-Talbot 115 kV lines, energizing one or both at 230 kV to provide a source to Lakeside Substation and transmission capacity. This is more effective for local load service and transmission reliability than the alternative of installing a 230-115 kV transformer at Lake Tradition Substation. This transformer will address NERC planning criteria and provide additional capacity to serve the projected load growth in north central King County and surrounding areas.

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West Kitsap Transmission Project, Phase II

230/115 2018+ .1 The project is to install a 230-115 kV transformer at Foss Corner Substation, and build a 230 kV line from Foss Corner to a future line bay position in the BPA Kitsap 230 kV Substation. PSE requests a waiver of significant transmission project status for this project. The project is intended to provide additional capacity to serve the projected load growth in Kitsap County and surrounding areas. It has no impact to the WECC or any neighboring electric systems.

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Sea Breeze Pacific Regional Transmission System

500 10/1/2006 22 600 2 1Two new 500 kV transmission lines between Vancouver Island (BCTC’s Pike substation) and the Olympic Peninsula (BPA’s Port Angeles and Fairmount 230 kV substations).

E. John TompkinsSea Breeze Pacific

RTS(860) 747-0497

Sea Breeze Pacific – West Coast Cable Project

500 2010 3 1600-3200 1 1500 kV DC bi-pole transmission interconnection between the Alston Substation in Alston, Oregon and one or more substations in the San Francisco, CA Bay area

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Sea Breeze Pacific – Juan de Fuca Cable Project (jdF)

+/- 150 kV DC Q4/2014 1 550 MW 2 +/- 150 kV 550 MW HVDC Light transmission cable connecting the Olympic Peninsula of WA State (BPA) with Vancouver Island in British Columbia (BCTC). The Juan de Fuca Cable Project will run under the Strait of Juan de Fuca, connecting the Bonneville Power Administration’s Port Angeles substation in Port Angeles, Washington to the existing BC Hydro Pike substation in Greater Victoria, British Columbia. Associated facilities include converter stations adjacent to the existing substations.

Sara Van Mulligen(604) 689-2991

Southwest Intertie Transmission Project (SWIP)

500 2014 .3 This project is considered as Phase II to ON Line Project. Install 500-kV 275 mile long Line from Idaho Power’s Midpoint to the proposed Robinson Summit Substation located 20 miles west of Ely, Nevada. Install 70% series compensation (for 245 mile line impedance) equipment on this line as follows: 35% at Thousand Springs located 126 miles from Midpoint and 35% at Robinson. Install 2×600 MVA 345/345 kV Phase

Edi von EngelnNV Energy North(775) 834-4456


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Shifting Transformers (PST) at Robinson Summit: one on Falcon and another – on Gonder 345 kV line terminals respectively. Install 70% series compensation on Robinson – Harry Allen 500 kV line, 35 % at each end. NVE and LS Power are in a process of performing SSR studies to identify possible adverse effects on the near-by generators. As designated in the Transmission Use and Capacity Exchange Agreement (TUA) signed on 8/20/2010 between NVE and Great Basin Transmission, LLC (GBT), SWIP will be a jointly owned project by the parties.

Southern Nevada Intertie Transmission Project (SNIP)

500 2014 .2 This project is considered as a part of SWIP-South Project. Construct 500-kV 60 mile long line from NVE’s Harry Allen Substation to Southern California Edison’s Eldorado Substation. Install 70% series compensation at Harry Allen. NVE and GBT are in a process of performing SSR studies to identify possible adverse effects on the near-by generators. As designated in the Transmission Use and Capacity Exchange Agreement (TUA) signed on 8/20/2010 between NVE and Great Basin Transmission, LLC (GBT), the SNIP will be a jointly owned project by the parties. The proposed in-service date is, 2014.

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Blackhawk 345/120 kV Substation (was Emma)

345/120 6/2018 .1 This is a new substation with a projected in-service date of June, 2018. This project is postponed indefinitely.

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Fallon 230 kV Source 230 6/2014 .3 Install a new 230 kV line From Pony Express Switching Station (Enel) to a new 230/60 kV substation (approximately 1/2 mile South of Fallon) and build a series of substations and switching stations (Pony Express, Bunejug, and Macari) to provide new source, via a 25 mile 230 kV line, to the City of Fallon. The projected in service date for this project is June 2014. The scope of this project has been changed due to a reduction in load growth in Fallon area, the termination of one LGIA and the reduction in a second LGIA have also contributed to the reduction in scope of this project. The project will now likely to be a 10 mile 230 kV generator lead line heading southward from the generator interconnect, company BO, with a reduced LGIA to the Pony Express Switching Station. The Pony Express switching station will be constructed at an existing generator interconnection site (Enel) and then connects to NV Energy’s Northern 230 kV system about five miles further south. No connection will be made from into Fallon from interconnection BO switching station.

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Bothell – SnoKing 230 kV lines

230 2017 .25 The project will re-conductor most of the double circuit Bothell-SnoKing 230KV lines with high temperature conductor. Bonneville Power Administration is going to rebuild their 0.5 miles of the Bothell-SnoKing lines and Seattle City Light will re-conductor our 3.0 miles. The purpose of this project is to improve South-to-North transfer capability between the Northwest and British Columbia. The estimate in-service date for project will be 2017.

Desmond Chan206-615-0654

(SCL)

Delridge-Duwamish 230 kV line

230 2017 .25 This project will re-conductor the Delridge-Duwamish 230KV line with high temperature conductor. The purpose of this re-conductoring is to improve South-to-North transfer capability between the Northwest and British Columbia. The estimate in-service date for project will be 2017.

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Beverly Park 230/115kV 230/115 12/2016 .2 300 MVA 1. SNPD will construct a new 115 kV switchyard at Beverly Park substation, using a Long T. Duong


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Transformer breaker‐and‐a‐half scheme to replace the existing single bus configuration.2. SNPD will install ONE new 230/115 kV transformer for the Beverly Park substation. This transformer will function as a backup transformer for loss of two out of three 230/115 kV transformers at BPA Snohomish substation.3. BPA will perform work at BPA Snohomish substation to provide a 230 kV source to Beverly Park substation. BPA owns the new 230 kV feed from BPA Snohomish to Beverly Park substation.

(425) 783-4305(SNPD)

230 kV Re-Termination Project

230 7/2013 .1 The purpose of this 230 kV Re-termination Project is to improve Tacoma Power’s system reliability and operational flexibility. The first part of this project to re-terminate TPWR’s Tacoma-Cowlitz #2 and Cowlitz-Southwest #3 230 kV lines to form the new Tacoma-Southwest 230 kV line was completed and placed in service in August 2012. The second part of the project, which involvesthe re-termination of BPA’s “South Tacoma- Cowlitz #1” 230 kV line from TPWR’sCowlitz 230 kV bus to TPWR’s “Southwest #4” 230 kV line to form the new “South Tacoma-Southwest” 230 kV line was postponed and is now anticipated to becompleted and released to operations in July 2013.

Francis Tong253-502-8262

(TPWR)

Canyon Substation / Switching Station

+/- 500 kV DC 2017-19 1 2000 MW 2 1NorthernLights is a 500 kV, direct current, 2000 MW transmission line from southeastern Alberta, Canada to the Buckley station in northern Oregon. The Regional Planning process was completed in February 2008 and the Phase 2 status was achieved in March 2009. Further activity on the project is awaiting decisions within Alberta of the need for increased interconnection capacity to other markets. The project cost is $2 billion with an ISD of 2017 to 2019.

Bill Hosie403-920-7338

(TCP)

Zephyr Project +/- 500 kV DC 2016 .1 3000 MW 1 Zephyr is a 500 kV, direct current, 3000 MW transmission line from south-eastern Wyoming to the Eldorado Valley in southern Nevada. The Zephyr development plan includes a potential 750 MW intermediate converter station near the Borah substation in south-eastern Idaho. The Regional Planning process was complete in November 2009. In 2010, TransCanada concluded a successful Open Season with three substantial creditworthy Wyoming wind developers (Pathfinder Wind, BP Wind and Horizon Wind) executing precedent agreements for the entire 3000 MW of Zephyr capacity. TransCanada and its customers are establishing market support prior to moving forward with full scale siting and permitting activities. The project cost is $3 billion with an ISD of 2016.

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Chinook Project +/- 500 kV DC 2017 .1 3000 MW 1 Chinook is a 500 kV, direct current, 3000 MW transmission line from south-central Montana to the Eldorado Valley in southern Nevada with a potential future 750 MW intermediate converter station near the Borah substation in south-eastern Idaho. The Regional Planning process was complete in November 2009. TransCanada conducted an Open Season for the Chinook project that closed on December 16, 2010. Bids totaling 1500 MW were received; however they were not accepted as the amount was insufficient to justify allocating capacity at this time. TransCanada may decide to hold a new open season process, if regulatory uncertainties get resolved and if Montana energy project developers express sufficient interest in a new open

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season. It is not unusual for projects of this scale to test the market a number of times. The fact that a project is not successful in one open season does not mean that a project is dead and, indeed, other transmission projects in the west have had multiple open seasons. The project cost is $3 billion with an ISD of 2017.

Havre to Rainbow 161kV Rebuild / Upgrade

161 2022 .75 This project is on-hold status due to high priority oil load growth. Western’s 103 mile Havre – Verona – Rainbow 161kV transmission line was constructed and energized in 1935. It electrically parallels NorthWestern Energy’s (NWE’s) Havre – Rainbow 161kV circuit. These two circuits maintain separate rights-of-ways with two crossings. Western intends to rebuild its circuit in segments, at 230kV specification. Each segment is anticipated to be complete and re-energized in approximately one month. The existing right-of-way is inadequate and will be expanded in most areas and re-routed in others. An Environmental Assessment (EA) is complete for this project and has been issued for final publication. The first 30 mile segment between Havre and Verona is complete, along with 1 mile at the Rainbow / Great Falls end for re-termination into NorthWestern Energy’s (NWE's) Great Falls Substation in conjunction with Project 2) described below. In 2011, 14 miles of reroute and reconstruction began in the Loma, MT area and was approximately one-third complete when crews were re-dispatched due to storm damage in Eastern Montana / Western North Dakota (East Grid WAUE BA). Due to both storm damage and dramatic oil exploration load growth in the Eastern Montana / Western North Dakota area, this project has been placed on-hold for approximately 5 years, with approximately 5 years of construction remaining prior to completion. Therefore, target completion is estimated to be 2022. Once the project resumes, construction will again continue during non-peak loading periods only. Upon completion of each segment, the line will continue to be energized at 161kV until such time that conversion to 230kV is required. Additional system impact study analyses will be required with stakeholder approval prior to the 230kV voltage conversion. No interruption of customer service during construction is anticipated with this project. The project will receive a single 1 mile reroute this summer, near Carter, to raise the highway crossing for accommodation of extra large/tall shipments of pre-fabricated tanks North of Great Falls, MT.

Frank E. Jarvenpaa

(406) 247-7384(WAUM)

New 161/115 kV Substation between Richardson Coulee and Malta Substations

161/115 2020 .2 This project is on-hold status waiting for regulatory approval. Western currently owns, operates and maintains the 180 mile Fort Peck-Richardson Coulee-Malta-Harlem-Havre 161kV circuit, which is constructed for future 230kV conversion. A new substation is anticipated to be installed approximately 18 miles East of Malta in the 49 mile section between the Richardson Coulee and Malta Substations. This new substation will provide a 161kV ring bus constructed at 230kV specification, 161/115kV transformation and a 115kV tap for a new 115kV line that will extend approximately 48 miles to serve an ultimate 21 MW of new oil development network load. VAR support will include a 15 MVAR shunt capacitance at the new 161kV substation and a 15 MVAR shunt capacitance at the load. Due to regulatory delays, construction is not anticipated to begin before fall of 2014. No interruption of customer service during construction is anticipated.

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LIST OF ANNUAL PROGRESS REPORTS TO WECC - 2013ROCKY MOUNTAIN POWER AREA




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Dry Fork Station 390 6/2011 38 The Dry Fork Station is a 390 MW net coal fired station under construction and scheduled to be in commercial operation in June of 2011. It is located at the Dry Fork Substation.

Matthew Stoltz701-557-5647

(BEPC)

Laramie River Station 345/230 kV Transformer #2

345/230 8/2014 600 MVA This project consisted of the addition of a second 345/230kV 600MVA transformer at the existing Laramie River Station (LRS) 230 kV switchyard in southeast Wyoming. The transformer is owned by the Missouri Basin Power Project (MBPP). Its primary function is an in-service spare unit for the MBPP. The transformer was placed in-service in October 2014.

Shawn Carlson, PE701-557-5626

(BEPC)

Boone-Nyberg 115 kV Upgrade Project

115 2015 This project is being coordinated with Public Service Company of Colorado (PSCo) and Tri-State Generation and Transmission (TSG&T) for increased reliability in the Rocky Ford/La Junta area of southern Colorado.The project consists of a new double circuit 115 kV line between Boone 115 kV and Nyberg 115 kV substations, utilizing existing right-of-way where possible and replacing the Boone – DOT Tap – Nyberg 115 kV transmission line. New 115 kV line terminal positions are required at Nyberg and Boone 115 kV substations to integrate the new circuit.The Colorado Coordinated Planning Group (CCPG) is a Sub regional Planning Group in the Rocky Mountain Region and allows open participation in its planning meetings to stakeholders interested in this project. The requirements of project coordination review for this project have been met through the CCPG. The planned in-service date is 2015..

Wes Wingen605-721-2268

(BHE)

Teckla-Osage 230 kV Transmission Line

230 2015 .2 The Teckla-Osage 230 kV line will consist of approximately 60 miles of 1272 ACSR ‘Bittern’ conductor on H-frame poles. The line will be constructed to provide needed Common Use System (CUS) transmission capacity, accommodate projected load growth, and increase Wyodak area stability margins. Reliability analysis for this project was initially performed as part of the 2008 BHBE LTP Study and the need reviewed in subsequent BHBE LTP Studies.The Colorado Coordinated Planning Group (CCPG) is a Sub regional Planning Group in the Rocky Mountain Region and allows open participation in its planning meetings to stakeholders interested in this project through the WY/SD Common Use Subcommittee (WY/SD CUS). The requirements of project coordination review for this project have been met through the CCPG.http://www.westconnect.com/filestorage/WY_CUS_Update_(10Dec2014).pdfThe planned in-service date is 2016..

Wes Wingen605-721-2268

(BHP)

Osage-Lange 230 kV Transmission Line

230 2016 .2 The Osage-Lange 230 kV line will consist of approximately 75 miles of 1272 ACSR ‘Bittern’ conductor on H-frame poles. The line will be constructed to provide needed Common Use System (CUS) transmission capacity and provide an additional path to the Rapid City load center. Reliability analysis for this project was initially performed as part of the 2008 BHBE LTP Study and the need reviewed in subsequent BHBE LTP Studies.

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The Colorado Coordinated Planning Group (CCPG) is a Sub regional Planning Group in the Rocky Mountain Region and allows open participation in its planning meetings to stakeholders interested in this project through the WY/SD Common Use Subcommittee (WY/SD CUS). The requirements of project coordination review for this project have been met through the CCPG.http://www.westconnect.com/filestorage/WY_CUS_Update_(10Dec2014).pdfThe planned in-service date is 2016.

Bill Durfee (Sundance) 230 kV Substation

230 2015 .1 On July 10, 2012, Powder River Energy Corporation (PREC) submitted to Black Hills Power a formal application for a new interconnection on the existing Lookout-Hughes 230 kV line. The interconnection will consist of a 100 MVA 230/69 kV transformer and a three terminal 69 kV switching station. The proposed location of the new interconnection is approximately 5 miles south of Sundance, Wyoming and was included in the 2013 & 2014 BHBE Local Transmission Planning Studies. The planned substation near Sundance, Wyoming was formerly named the Bill Durfee 230 kV substation at the end of 2013. The purpose of this project is to serve local load and increase local reliability. It is not expected to have a significant impact upon the operation of the Western Interconnection. The planned in-service date is currently 2015.

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St. Onge 230 kV Substation (BHP)

230 2018 .1 The St. Onge 230 kV substation project was identified to provide additional 230/69 kV transformation capacity in the northern Black Hills. The 2013 BHBE LTP Studies proposed an alternative to the St. Onge 230 kV substation.The addition of a second Yellowcreek 230/69 kV transformer was determined to be a more cost effective solution and the St Onge 230 kV substation project was cancelled. The purpose of the Yellowcreek 230/69 kV transformer project is to serve local load and increase local reliability. It is not expected to have a significant impact upon the operation of the Western Interconnection. The planned in-service date is currently 2018.

Undervoltage Load-Shedding Scheme

115 2012 .3 A temporary UVLS program was implemented on 8/6/09 at nine 115 kV substations to prevent a localized voltage collapse from occurring when loads are high within a 115 kV load-serving area for a Category C contingency causing loss of two of the four 115 kV lines providing service to the loads. The program is designed to shed up to 75% of Longmont-Del Camino-Erie area load (north of Denver, CO) in three 25% stages at 4, 12, and 20 second time delays for bus voltages below 0.90 p.u. The UVLS program is in the process of being removed from service due to the Fordham-Fort Saint Vrain 230kV Line being completed in November 2011.

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Second 230kV line from Front Range Power Plant to Existing Nixon-Kelker (NX-KE) Line

230 06/2017 1 a) Second 230kV line from Front Range Power Plant to Existing Nixon-Kelker (NX-KE) Lineb) Currently, there is only one transmission line from the CSU-owned Front Range Power Plant that generates 460 MW at summer peak. The purpose of this project is to provide a second line out of the plant to connect with an

Gary [email protected]

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existing CSU transmission line.c) The termination point for the existing 230kV NX-KE line will be removed from the Nixon 230kV bus and the line will be re-routed into the Front Range Power Plant substation which it is only a few hundred feet from the existing line. Rather than two identical NX-KE lines, CSU will now have one 230kV line from Nixon to Kelker and one 230kV line from Front Range Power Plant to Kelker.d) The expected date of release to operations is June 2017.e) The expected operating voltage is 230kV.f) The project is not expected to have a significant impact on the operation of the WECC interconnected electric system because CSU is a small, relatively self-contained system. Changing the termination point of this existing 230kV line has very little impact on the CSU system and even less impact on the WECC system and WECC transfer paths. The project does not connect to other utilities outside of the CSU system and the project does not require a flow control device. The project provides a reliability improvement for CSU and possibly other entities under certain Category C or D outages.

Rifle – Parachute 230kV Line #2

230 2016 .3 The Rifle – Parachute Project consists of constructing a second 18-mile 230kV transmission circuit between Rifle and Parachute substations. The project is needed to accommodate projected load growth in western Colorado. The load growth consists primarily of natural gas developers that require transmission service to electric motor driven gas compressors for natural gas gathering and gas compression applications in Mesa and Garfield counties. The project was previously reported to have an in-service date of October, 2015, but that has been moved to the summer of 2016. The project was granted a waiver of significant transmission project status in 2012.

Thomas W. Green303-571-7223

(PSC)

Pawnee – Daniels Park 345kV Transmission Project

345 2019 .3 The Pawnee – Daniels Park 345 kV Transmission Project consists of approximately 120 miles of 345 kV transmission between Pawnee Station and the Daniels Park Substation south of Denver. The project will also result in a new Smoky Hill – Daniels Park 345 kV line. The project is needed to improve reliability and accommodate additional generation in northeast Colorado. The project has a planned in-service date of 2019, but is currently under review by the Colorado Public Utilities Commission. The Administrative Law Judge for the proceeding recommended the project be delayed three years, but a final ruling has not been made. The project was granted a waiver of significant transmission project status in 2012.

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San Luis Valley-Calumet-Comanche Transmission Project

345 .2 The San Luis Valley – Calumet – Comanche Transmission Project is a joint transmission plan between PSCo and Tri-State G&T. It consists of double-circuit 230kV transmission from the San Luis Valley Substation in south-central Colorado to a new Calumet Substation, near Walsenburg, Colorado, and then double-circuit 345kV transmission from Calumet Substation to the Comanche Station, near Pueblo, Colorado. A comprehensive progress report was included with the PSCo 2010 Annual Progress Report. The timing of this project remains

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uncertain as indicated by the PSCo 2012 Project Report.

Tot 7 Expansion Project ? .2 This project is expected to consist of new transmission originating in Weld County, Colorado and connecting to the existing transmission system northeast of the Denver-metro area. The project would increase local reliability to existing customers and provide transmission capacity to serve anticipated load growth in the region. The project would also accommodate additional generation resources north of Denver. Since the project impacts the existing Tot 7 path (Path 40), PSCo initiated the WECC Project Coordination process. Studies will progress through 2015 and an in-service date is uncertain at this time.

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Generation Projects 40-250 2014-2016

.33 Name Inter-connection

Owner Net MW

Type

ISD

Arapahoe 3 (retired)

Arapahoe

PSCo -44 Coal 2014

Limon 3 Missile Site 345 kV

NextEra

200 Wind

2014

Zuni 2 (retired)

Zuni PSCo -65 Coal 2015

Golden West

Fuller 230 kV

Golden West

250 Wind

2015

Hooper 1

San Luis Valley 230 kV

Solar Star

52 Solar

(PV)

2015

Comanche Solar

Comanche 230 kV

Comanche Solar

120 Solar

(PV)

2015

Cherokee 3 (retired)

Cherokee 115kV

PSCo -152 Coal 2016

Cherokee 5,6, 7

Cherokee 115kV

PSCo 570 Gas (CC)

2016

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Laporte 230 kV Substation Expansion

230/115 5/2016 .1 Reconfigure an existing 230/115 kV substation with a 230 kV breaker-and-a-half yard to connect four adjacent transmission lines (converting one from 115 to 230 kV) and two 230/115 autotransformers to be in-service May 2016. The project will have no regional impacts. The purpose of the project is to improve reliability in the Laporte, Colorado area which is in the northwest part of the

Jeremy [email protected]

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Foothills Area system.

Boyd 230/115kV Transformer Addition Project

230/115 5/2017 .1 A second 230/115kV Transformer will be added to the substation along with converting the 115kV ring bus configuration to breaker and a half and is planned to be in-service May 2017. The project will have no regional impacts. The purpose of the project is to improve system reliability in the Loveland, Colorado area which is in the central part of the Foothills Area system.

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Wayne Child Substation Project (aka TOT3 Archer Interconnection Project previously known as the 300 MW Path 36 Upgrade)

345/230 Q4/2018 .3 300 MW 3 This Project will construct a new substation (Wayne Child substation) which will sectionalize MBPP’s Laramie River Station (LRS) – Keota 345 kV line near the existing Archer substation, complete with 345/230 kV transformation, and construct approximately 1/3-mile of 230 kV line between Archer andWayne Child substations. Line upgrades to the LRS – Ault and LRS – Wayne Child 345 kV lines will be necessary, as well as capacitors at Dalton substation near Sidney. The project is planned to be completed in 2018, and was granted Phase III status in the WECC Three-Phase Rating Process onNovember 16, 2012.

David Gustad303-254-3449

(TSGT)

Lamar-Front Range Project 345 1 2000 MW This project includes two high voltage transmission paths, one from Lamar substation to the Pueblo area and a second from Lamar to substations near Brush and/or Deer Trail. This will provide for better reliability to serve loads in the entire eastern Colorado footprint. Multiple voltage options have been examined. This project will be built in stages, with each designated stage being a part of the overall plan to address the eastern Colorado transmission needs. This project will also provide the infrastructure for Xcel Energy to meet Colorado Senate Bill 07-100 requirements by connecting several Energy Resource Zones in eastern Colorado to the Denver Front Range area.

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Burlington-Lamar 345/230 kV Project (2014 Waiver Granted)

345/230 2020 The purpose of Burlington-Lamar Transmission Project is to incrementally alleviate existing and future transmission system constraints in southeast and eastern Colorado as identified in the Lamar Front Range studies. It is a subset of the greater Lamar Front Range project. To accommodate future transmission needs, the Burlington-Lamar line may be constructed for 345 kV operation, but will initially be operated at 230 kV. The projected in-service date is 2020.

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Badwater- Sawmill Creek 230 kV Line Project (Previously Badwater – Casper)

230 2017/2023

1 650 MVA This project will be done in two stages. The first will add a load serving substation on the Dave Johnston (DJ) – LRS 230 kV line to provide load serving capability for growing loads in eastern Wyoming. Theplanned in-service date for this new Sawmill Creek substation is 2017. The second stage involves constructing a new 230 kV transmission line from Sawmill Creek substation to Badwater (PACE) substation. The new 100-mile long line will allow improved reliability and allow Tri-State to serve newload near central Wyoming. The planned in-service date of the line addition is 2023.

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Keota 345/115 kV Project 345/115 In Service

.25 This project involved sectionalizing the Laramie River Station (LRS)-Story 345 kV line for a load serving connection approximately 60-65 miles northwest of Story with a 225 MVA, 345/115 kV transformer at the new Keota substation. This project was granted Phase III status in the WECC Three-Phase RatingProcess on November 7, 2013. The Keota substation is now energized and serving load.

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Boone – Walsenburg 230 kV Line (2013 Waiver Granted)

230 2023 1 645 MVA The Boone-Walsenburg project will consist of one new 230 kV transmission line from the existing Boone substation to the existing Walsenburg substation. Addition of a new 230 kV line will increase reliability in the Pueblo, Colorado area and also in Northeast New Mexico by removing the need for a RemedialAction Scheme (RAS) which trips the Walsenburg-Gladstone 230 kV line and results in the loss of load and reduced reliability in Northeast New Mexico for the outage of the Comanche-Walsenburg 230 kV line. The planned in-service date is 2023.

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San Juan Basin Energy Connect Project (2013 Waiver Granted)

230 2018 1 This project involves constructing a new 230 kV transmission line between the existing WAPA Shiprock Substation in New Mexico and a new 230 kV Iron Horse Substation in southwestern Colorado. A new 230 kV Kiffen Canyon Substation with a phase shifting transformer will also be required along the new230 kV line. It will allow Tri-State to serve additional industrial load in SW Colorado. The planned inservice date is 2018.

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San Luis Valley-Carson 230 kV Line Project (aka San Luis Valley-Calumet-ComancheTransmission Project)

230/345 1 This project consisted of a new 230 kV transmission line from the existing San Luis Valley substation to a new Carson 230/345 kV substation located west of Taos NM. However, as of now this project is no longer being considered, and evaluation of a more preferred alternative is being performed.

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Montrose-Nucla-Cahone Transmission Upgrades (aka Western Colorado TransmissionUpgrade Project) (2013 Waiver Granted)

115/230 2018 1 This project upgrades the existing Montrose – Nucla – Cahone 115 kV transmission line and substation facilities to 230 kV operation. The purpose of this project is to improve system reliability by eliminating the Nucla Remedial Action Scheme. The planned in-service date for this project is 2018.

Burlington-Wray 230 kV Line Project (2012 Waiver Granted)

230 2016 1 The Burlington – Wray 230 kV Line Project is intended to increase reliability in the project area, remove restrictions on the Burlington area network resources, and increase the deliverability of Tri-State resources to Tri-State member loads. This will be accomplished by adding a new 230 kV line from the Burlington substation to the Wray substation. The additional capacity will alleviate congestion in the Burlington area, increase reliability, and allow the potential development of renewable generation resources in the Burlington and Wray areas which currently have existing wind resources. The planned in-service date is 2016.

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Big Sandy-Calhan 230 kV Line Project (2012 Waiver Granted)

230 2019 1 The primary purposes of the Big Sandy -Calhan 230 kV project are threefold: mitigate the projected overloads of Tri-State’s 100 MVA 230-115 kV Fuller transformer, should other mitigating actions not take place; increase Tri- State’s ability to deliver resources to Mountain View Electric Association (MVEA) and its other southeastern Colorado members; and provide a bulk transmission connection (i.e., a "strong" voltage source and increased power transfer capacity) to the eastern side of MVEA’s service area. This will be accomplished by adding a 230 kV line from Big Sandy substation to a new Calhan 230 kV substation. This project is presently planned to be in-service in 2019.

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San Luis Valley-Calumet-Comanche Transmission Project

230/345 After 2015

.4 1000-1500 MW

The project consists of two basic sections and is a joint project with Xcel Energy. The first section consists of approximately ninety‐five (95) miles of new, double‐circuit 230 kV transmission, built from the San Luis Valley Substation to a new Calumet Substation, which would be located approximately six (6) miles north of the existing Tri‐State Walsenburg Substation. The second section consists of approximately forty‐five (45) miles of 19 new double‐circuit 345 kV transmission line from Calumet Substation to the existing Comanche Station near Pueblo. The project will improve local system performance and reliability, and will facilitate potential generation as part of Xcel Energy’s response to Colorado Senate Bill 07-100 which calls for development of transmission facilities to deliver power from renewable resource zones in Colorado. The project was initially planned to be in service in 2015. However, the project in service date has been delayed and will be determined after Colorado PUC and other stake holder input. This project is not expected to impose any significant impacts on the reliability of the WECC interconnected system.

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Gladstone 230 kV Phase Shifting Transformer Project (2012 Waiver Granted)

230 In Service

1 This project added a 300 MVA Phase Shifting Transformer (PST) at the existing Gladstone substation. Studies by Tri-State and others have all shown the need for transmission network upgrades in the North East New Mexico (NENM) area to improve system reliability and load serving capability, mitigate operating issues related to bus phase angle differences, and reduce system losses. This transformer is part of those needed upgrades, and is now in service.

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J.M. Shafer-Henry Lake 230 kV Project (Request for Waiver 2014)

230 260 .33 This project consists of a new 230 kV line connecting the existing J.M. Shafer generating station to the proposed Greenhouse substation (part of SWEP) and continuing to the existing Henry Lake substation. This serves three purposes: it improves transmission reliability by providing a second transmission source directly to the J.M. Shafer station, it mitigates the problem of losing the entire generating station for the outage of the single 230 kV line to the Ft. Lupton substation, and it provides Tri-State the flexibility to directly deliver the output of the J.M. Shafer station to either the PSCo or WACM Balancing Authority for

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spinning reserve requirements and additional balancing resource needs. Tri-State’s J.M. Shafer generating station has a total capacity of 272 MW and has some capability to be upgraded in the future. The projected in-service date is 2016.

Miracle Mile Substation Stage 03

230 Q2/2010WAPA

Projects

.5 Installation of two 230/115 kV, 200 MVA power transformers, and associated equipment. Installation of two 30 MVAR shunt reactors.

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Lovell – Yellowtail 115-kV rebuild

115 Q4/2014 1 Rebuild with 795 ACSS Linda Pope970-461-7348WAPA-RMR

Curecanti 230/115-kV 150 MVA transformer replacement

230/115 Q4/2014 1 Replace Curecanti KZ1A 230/115-kV 75 MVA with a 150 MVA transformer “

Liberty Transformer Replacement

600 345/230 .3 Replace existing transformer (KU1A) with a 345/230-kV 600MVA transformer.

Gary Kelly(602)-605-2713

WAPA-RMR

ED5 – Test Track 230 kV Transmission Line Project

230 7/2014 .3 Installed a second circuit, 22 miles long, on the Western’s115-kV Casa Grande-Empire and Empire-ED5 transmissionlines which were recently rebuilt as dual circuit steelmonopoles, and 23 miles, on the SRP’s Duke-Pinal Central500-kV steel monopoles.

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TransWest Express Project 600 kV HVDC

Late 2017 or

Early 2018

2 3000 2 TransWest Express LLC (TransWest) is developing the TWE Project, a 3,000 MW, 600 kV, line commutated, bi-pole high voltage direct current (HVDC) transmission project. TransWest and Western Area Power Administration (Western) have entered into a joint development agreement under which Western may become a 50% owner of the TWE Project.The TWE Project is approximately 730 miles long and will be connected to the AC transmission grid in south central Wyoming and in south eastern Nevada. The primary intended use of the TWE Project is to deliver wind generated electricity from Wyoming to markets in the desert southwest. The TWE Project is planned to be in service in late 2017 or early 2018.

David Smith(303) 299-1545

(TWE)

Wyoming Colorado Intertie 345 2014 2 TOT3 +900 MW

2 WCI is an approximately 180-mile, 345 kV transmission line between Laramie River Station in southeastern Wyoming and Pawnee in northeastern Colorado. WCI has a Planned Rating that will add 900 MW to the TOT3 (WECC Path 36) path rating. The WCI project is owned by Wyoming Colorado Intertie, LLC, a member of the LS Power Group of companies.

Bill Pascoe(406) 494-2075WCI Consultant


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LIST OF ANNUAL PROGRESS REPORTS TO WECC - 2014ARIZONA – NEW MEXICO - NEVADA POWER AREA




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Palo Verde – Delany 500 kV line

500 2016 1 Main components of the project will include a 14.86 mile 525 kV transmission line composed of 525 kV lattice structures with a phase conductor of 3x1780 kcm ACSR Chukar. Shield conductors for the line will utilize one 7#8 AW conductor (segmented) and one OPGW conductor (non‐segmented). A new 525 kV switching station will be constructed at the Delaney site and a new line terminal will be added at the Palo Verde switching station.

In 2011, APS completed a study (Preliminary Transmission Interconnection Impact Study: Q11 Palo Verde‐Delany‐Sun Valley and Q12 Hassayampa‐North Gila #2 500 kV Lines) and the results were approved by the Western Arizona Transmission System task force. Results of the study reveal the project will not adversely impact existing facilities while providing access to new renewable generation facilities west of Phoenix, Arizona. In addition, the project has also been included in several Ten Year Plan submittals by APS to the Arizona Corporation Commission as well as a number of sub‐regional studies with no adverse effects.

Results from studies mentioned in section B have found no adverse effects to the WECC or local transmission systems due to the addition of this project. Additionally, the project is anticipated to be part of the Palo Verde East transmission path.

Barrie Kokanos602-250-1370

(APS)

Delany – Sun Valley 500 kV line

500 2016 1 Main components of the project will include a 28.30 mile 525 kV transmission line composed of both 525 kV lattice and monopole structures with a phase conductor of 3x1780 kcm ACSR Chukar. Shield conductors for the line will utilize one 7#8 AW conductor (segmented) and one OPGW conductor (non‐segmented). A new 525 kV switching station will be built at the Sun Valley site and a new 525 kV terminal will be added at the Delaney switching station.

In 2011, APS completed a study (Preliminary Transmission Interconnection Impact Study: Q11 Palo Verde‐Delany‐Sun Valley and Q12 Hassayampa‐North Gila #2 500 kV Lines) and the results approved by the Western Arizona Transmission System task force. Results of the study reveal the project will not adversely impact existing facilities while providing access to new renewable generation facilities west of Phoenix, Arizona. In addition, the project has also been included in several Ten Year Plan submittals by APS to the Arizona Corporation Commission as well as a number of sub‐regional studies with no adverse effects.

Results from studies mentioned in section B have found no adverse effects to the WECC or local transmission systems due to the addition of this project. Additionally, the project is anticipated to be part of the Palo Verde East transmission path.

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Hassayampa‐N.Gila #2 (aka HANG2) 500 kV

500 2015 2 The project has a CEC permit, has a planned in‐service date of summer 2015 and is currently under construction.

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Project (2015) To increase transfer capacity on Path 49, increase import capability in the Yuma load pocket and increase access to renewable generation near the Palo Verde/Hassayampa hub.Main components of the project will include a 111.41 mile 525 kV transmission line composed of 525 kV lattice structures with a phase conductor of 2x2156 kcm ACSR Bluebird. Shield conductors for the line will utilize two OPGW conductors (segmented). Two 170 Mvar, 525 kV line reactors, one located at each terminal, are included in the project and will be operated through a 525 kV breaker. A single‐segment, 33.7 Ω series capacitor will be located at the N.Gila switchyard. Rating for the MOV protected capacitor will be 2200 Amps continuous with a 135% 30 minute emergency rating.In 2011, APS completed a study (Preliminary Transmission Interconnection Impact Study: Q11 Palo Verde‐Delany‐Sun Valley and Q12 Hassayampa‐North Gila #2 500 kV Lines) and the results were approved by the Western Arizona Transmission System task force. Results of the study reveal the project will not adversely impact existing facilities along the Arizona‐California border. Also, the project has been included in several Ten Year Plan submittals by APS to the Arizona Corporation Commission as well as a number of sub‐regional studies with no adverse effects. In September 2011, the project participants completed the WECC Project Coordination Review Group Report for the Hassayampa‐North Gila #2 (HANG2) Project as a partial requirement for completing the WECC Project Coordination Process for the project. Subsequently, the project participants completed the Hassayampa‐N.Gila #2 Project (Path49) WECC Comprehensive Progress Report as a partial requirement for advancing from phase 1 to phase 2A in the WECC Path Rating Process.Based on the efforts completed to date, study results have revealed no adverse effects to the WECC or local transmission systems due to the addition of the HANG2 project. Additional studies including the phase 2 WECC Path Rating Process study are currently assessing this project. Finally, the project is anticipated to be part of the East of the Colorado River transmission path (WECC Path 49).

Palm Valle-Trilby Wash 230 kV Project

230 2015 1 The project has a CEC permit and has a planned in‐service date of summer 2015.Main components of the project will include a 15.91 mile 230 kV transmission line composed of 230 kV double circuit monopole structures with a phase conductor of 1x2156 kcm ACSS with the second circuit strung at a later date. Shield conductors for the line will utilize one 3/8“ HS conductor (non‐segmented) and one OPGW conductor (non‐segmented). A new 230 kV line terminal will be added at the Palm Valley substation. In addition, the project will also include construction of a new 230/69 kV substation in the Sun City area.

Sub‐regional studies are underway to assess the impacts of the project through the Western Arizona Transmission System task force. However, the project has

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been studied in various sub‐regional study efforts and has been included in several Ten Year Plan submittals by APS to the Arizona Corporation Commission with no adverse effects.

To date, study results have revealed no adverse effects to the WECC or local transmission systems due to the addition of this project.

Sun Valley‐Trilby Wash 230 kV Project (2016)

230 2016 1 The project has a CEC permit and has a planned in‐service date of summer 2016.

Main components of the project will include a 14.13 mile 230 kV transmission line composed of 230 kV double circuit monopole structures with a phase conductor of 1x2156 kcm ACSS with the second circuit strung at a later date. Shield conductors for the line will utilize one 3/8“ HS conductor (non‐segmented) and one OPGW conductor (non‐segmented). A new 230 kV switching station will be built at Sun Valley and a new 230 kV terminal will be added at the Trilby Wash substation. In addition, the project will also include a new 600 MVA, 525/230 kV transformer at the Sun Valley switchyard.

Sub‐regional studies are underway to assess the impacts of the project through the Western Arizona Transmission System task force. However, the project has been studied in various sub‐regional study efforts and has been included in several Ten Year Plan submittals by APS to the Arizona Corporation Commission with no adverse effects.

To date, study results have revealed no adverse effects to the WECC orlocal transmission systems due to the addition of this project.

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Sun Valley – Morgan (TS9) 500 kV line

500 2018 1 The project has a CEC permit and has a planned in‐service date of summer 2018. Commercial operation date for the 230 kV portion of the project is approximately 2024.

Proposed renewable generation facilities are expected to interconnect to the Delaney 500 kV switchyard and will deliver resources to the Phoenix area through the Sun Valley‐Morgan 500 kV Project.

Main components of the project will include a 38.07 mile 525 kV transmission line composed of 525/230 kV double circuit monopole structures with a phase conductor of 3x1780 kcm ACSR Chukar. Phase conductor for the 230 kV line will be 1x2156 kcm ACSS and will be strung at a later date. Shield conductors for the line will utilize one 7#8 AW conductor (segmented) and one OPGW conductor (nonsegmented). A new 525 kV terminal will be added at both Sun Valley and Morgan switching stations. The Hassayampa Tap‐Hassayampa pump 230 kV line will be folded into the Sun Valley 230 kV station.

In 2014, APS completed a study (Morgan‐Sun Valley Project Wires to Wires

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Interconnection Study) and the results approved by the Western Arizona Transmission System task force on September 5, 2014. Results of the study reveal the project will not adversely impact existing facilities while providing access to new renewable generation facilities west of Phoenix, Arizona in to the Phoenix area. In addition, the project has also been included in several Ten Year Plan submittals by APS to the Arizona Corporation Commission as well as a number of sub‐regional studies with no adverse effects.

To date, study results have revealed no adverse effects to the WECC or local transmission systems due to the addition of this project. Additionally, the project is anticipated to be part of the Palo Verde East transmission path.

Mazatzal 345/69 kV Substation (2017)

345/69 kV 2017 1 Main components of the project will include a fold‐in of the Cholla‐ Pinnacle Peak 345 kV line into a new 345 kV switching station as well as the addition of a 150 MVA, 345/69 kV transformer and a new 69 kV switching station.

The project has been modeled in various sub‐regional studies as well as several Ten Year Plan submittals by APS to the Arizona Corporation Commission.

Results from studies mentioned in section B have found no adverse effects to the WECC or local transmission systems due to the addition of this project.

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N.Gila‐Orchard (previously called TS8) 230 kV Project (2018)

230 kV 2018 1 The project has a CEC permit and has a planned in‐service date of summer 2018.

Main components of the project will include a 12.50 mile 230 kV transmission line composed of 230 kV double circuit monopole structures with a phase conductor of 1x2156 kcm ACSS with the second circuit strung at a later date. Shield conductors for the line will utilize one 3/8“ HS conductor (non‐segmented) and one OPGW conductor (non‐segmented). A new 230 kV switching station will be added at the N.Gila site. In addition, the project will also include a new 600 MVA, 525/230 kV transformer at the N.Gila switch yard and the construction of a new 230/69 kV substation in the south Yuma area.

This project was included in the WECC Comprehensive Progress Report Hassayampa‐N.Gila #2 Project (Path49) associated with the HANG2 project WECC Path Rating Process studies. However, the project has been studied in various sub‐regional study efforts and has been included in several Ten Year Plan submittals by APS to the Arizona Corporation Commission with no adverse effects.

To date, study results have revealed no adverse effects to the WECC or local transmission systems due to the addition of this project. Additional studies including the phase 2 WECC Path Rating Process study and other operating studies are currently assessing this project.

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Scatter Wash 230/69 kV Substation (TBD)

230/69 TBD 1 Main components of the project will include a fold‐in of the Raceway‐ Pinnacle Peak 230 kV line into a new 230 kV substation as well as the addition of a 188 MVA, 230/69 kV transformer and a new 69 kV switching station.

This project has been studied in various sub‐regional study efforts and has been included in several Ten Year Plan submittals by APS to the Arizona Corporation Commission with no adverse effects.

To date, study results have revealed no adverse effects to the WECC or local transmission systems due to the addition of this project.

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Sun Valley‐Morgan 230 kV Project (2024)

230 2026 1 The project has a CEC permit and has a planned in‐service date of summer 2026. Its previous in‐service date was 2024.

Main components of the project will include a 38.07 mile 230 kV transmission line composed of 230 kV circuit on double circuit monopole structures with the Morgan‐Sun Valley 500 kV transmission line (mentioned previously) with a phase conductor of 1x2156 kcm ACSS. Shield conductors will already be in‐place due to the pre‐existing line. New 230 kV terminals will be added at both Sun Valley and Morgan switching stations.

Sub‐regional studies are underway to assess the impacts of the project through the Western Arizona Transmission System task force. However, the project has been studied in various sub‐regional study efforts and has been included in several Ten Year Plan submittals by APS to the Arizona Corporation Commission with no adverse effects.

To date, study results have revealed have found no adverse effects to the WECC or local transmission systems due to the addition of this project.

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Ocotillo Modernization Project (2017)

595 230 2018 1 Main components of the project will include retirement of two 110 MW generators and construction of five gas‐fired combustion turbines. In addition two 230 kV lines will be provide and interconnection from the collection yard to the existing Ocotillo 230 kV switchyard.

APS is currently finalizing the System Impact Study for the project.

Results from studies mentioned in section B have found no adverse effects to the WECC or local transmission systems due to the addition of this project.

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Navajo Transmission Project Segment 1

500 2016 1 1600 2 This project is the construction of a new 500 kV transmission line starting at the Four Corners 500 kV switching station and terminating at a switchyard south of the Navajo 500 kV switching station. As a result of this project, the nomogram for Path 22 will be eliminated and the two components of the path will be separated into Path 22A (Four Corners-Moenkopi and DREP-RME 500 kV) and

Tom JohnsSithe Global

509-926-3485


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Path 22B (Four Corners-Cholla #1 & #2 345 kV). Path 22A will have a non-simultaneous rating of 3190 MW and Path 22B will have a non-simultaneous rating of 1370 MW. Path 23 (Four Corners 500/345 kV) will have a rating of 1040 MW.

Great Basin Transmission SWIP-South Project

500 2014 1 +/- 2000 MW

2 2Great Basin Transmission’s SWIP-South Project represents further development of the ONLine Project. Install 70% series compensation on Robinson Summit-Harry Allen 500 kV line, 35% at each end. Install two 600 MVA 345/345 kV Phase Shifting Transformers (+/- 48 degrees each) at Robinson Summit: one connected towards Falcon and the other connected towards Gonder. Construct an extending 500 kV circuit from NV Energy’s Harry Allen substation to SCE’s Eldorado substation (~60 miles), with 70% series compensation at Harry Allen. Plan of service also includes a +150 MVAR shunt capacitor at the Robinson Summit 345 kV bus, and a +400 MVAR SVD (4x100 MVAR steps) at the Robinson Summit 500 kV bus.

Evan EstesLS Power

Development, LLC636-532-2200

Great Basin Transmission SWIP-North Project

500 2014 1 +/- 2000 MW

2 2Great Basin Transmission’s SWIP-North Project consists of a new 500 kV line from Idaho Power’s Midpoint substation to a new proposed Robinson Summit substation near Ely, Nevada (~275 miles). Install 70% series compensation (for 245 mile line impedance) as follows: 35% at Thousand Springs (located !125 miles south of Midpoint) and 35% at Robinson Summit.

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Bordertown to Cal Sub 120 kV Project

345/120 20171

280 MVAThis project comprises a 345/120 kV 280 MVA transformer at Bordertown Substation and a 120 kV 11-mile line from Bordertown to California Substation. This project is expected to be in service in 2017. Multiple studies on the project have been performed by NVE indicating that no significant regional impact from these internal transmission facilities can be expected.

Alex FratkinNV Energy North

775-834-4897

345 kV Voltage Support Project

345 2014 This project was approved in Sierra 2007 Integrated Resource Plan. The project includes the construction of a 75 MVAr 345 kV capacitor bank at North Valley Road substation and a 75 MVAr 345 kV capacitor bank at Mira Loma substation for operational support of the voltage in the 345 kV transmission grid. The project is completed and both capacitors are in service since 2014.

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Falcon Second 345/120 kV Transformer

345/120 2015 This project is driven by the expected increase of the NVE North load. The project includes an addition of a second Falcon 345/120 kV 280 MVA transformer bank at the existing Falcon 345 kV / 120 kV substation. This project is scheduled to be in service in 2015. Multiple studies on the project have been performed by NVE indicating that no significant regional impact from this internal transmission facility can be expected.

Harry Allen 500/230 Transformer Addition

500/230 6/2016 NV Energy plans to request Public Utility Commission of Nevada authorization to construct a new 500/230 kV 1500 MVA transformer at Harry Allen substation. The transformer would be installed at the 500 kV switchyard and

Alex FratkinNV Energy South

775-834-4897


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connected to the 230 kV yard through a short 230 kV line. The transformer will be designed to impedance of 8% (in order to balance the system flow ability and the fault duty at 230 kV bus). This project is scheduled to be in service in June, 2016, depending on permitting timelines. Multiple studies on the project have been performed by NVE indicating that no significant regional impact from this internal transmission facility can be expected.

Crystal 500 kV Line Interconnection

500 11/2014 NV Energy will construct a new 500 kV bay with two new breakers in the South Crystal 500 kV Substation. This South Crystal 500 kV Substation work will terminate a new LADWP 500 kV line (with conductor 2-1590 ACSR per phase) interconnecting a new solar PV plant. This project was energized in November - December, 2014.The interconnection studies by WATS were performed on the project on behalf of LADWP who is a sponsor and the recipient of the output of this project. The studies indicated that no significant regional impact from this internal transmission facility is expected.

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McDonald 230/138 kV Additions

230/138 6/1/2016 .1 NV Energy plans to add a new 336 MVA 230/138 kV transformer at the existing McDonald substation. The existing Arden – Decatur 230 kV line will be folded into the new McDonald substation.

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Brooks 230/138/12 kV Substation and Pecos – Brooks 230 kV Line

230/138 2017 .1 The addition of a new 230 kV transmission line between Pecos and the future Brooks substation site along with folding in the 138 kV sub-transmission between Leavitt and Gilmore substations into the Brooks substation will eliminate N-1 low voltage issues. .

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Sunrise 500/230 kV Transmission Substation

500/230 2018 .2 To increase import capability into the NEVP system, the Sunrise Project will include a new 500/230 kV Sunrise substation connected through an 8-mile fold to the Harry Allen-Mead 500 kV transmission line, with one 1500 MVA 500/230 kV transformer. The Sunrise 230 kV facilities will be integrated with existing 230 kV Nevada Power Company facilities through four new 230 kV lines. In service in 2018. The 500 kV portion of the project has been canceled and replaced with the Harry Allen 500/230 kV transformer addition. The 230 kV additions are delayed to 2018 or beyond based on current load forecasts.

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Robinson – Harry Allen Transmission Line #2 Project

500 2018 .2 Construct a 500-kV, 235 mile line #2 from the Robinson Summit Substation in Northern Nevada to the existing Harry Allen Substation in Las Vegas area. This line will parallel the “SWIP South” line route, on a separate ROW, with approximately 1000 ft separation between the two lines. The line will be 70% series compensated, 35% at each end. The line will serve as a conduit for new renewable generating resources between Northern and Southern Nevada, including those currently being developed along and in the proximity to the SWIP corridor. NVE has recently obtained from the BLM a permit for this line and is finalizing the substation portions of the permit. Similarly to “SWIP” Project, the SSR studies to identify possible adverse effects on the near-by generators will be performed. NV Energy is the proponent and the prospective

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owner of this project.

Northwest 500/230 #2 Transformer Addition

500/230 6/1/2018 .1 Install three 500/230 kV, single phase autotransformers with a rating of 300/400/500 MVA at the existing Northwest substation.

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Sunrise 500/230 kV #2 Transformer Addition

500/230 6/1/2020 .1 This is a second 500/230 transformer addition at Sunrise, which will fold in the existing Harry Allen – Mead 500 kV #1 line.

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Expansion of the Rio Puerco 345 kV Station

345 2015 .3 The Rio Puerco Expansion Project includes the loop-in of two existing 345 kV transmission lines in the Path 48 interface and addition of a +250/-100 MVAR static VAR compensator. The existing lines include the San Juan-BA-345 kV line and the Four Corners-West Mesa 345 kV line.

The initial expansion of the Rio Puerco station, which added a new 345/115 kV transformer to the local Albuquerque area network, was completed in May 2011. The looping in of the existing San Juan-BA 345 kV and Four Corners-West Mesa 345 kV lines and addition of a +250/-100 MVAR static VAR compensator is currently scheduled to be completed in 2015.

George Mail(PNM)

505-241-2574

Pinal West – Pinal Central-Abel – Browning 500 & 230kV line Estimated date of operation: 2014-2020

500/230 kV 2014 .5 1500 MW Point of Origin Pinal West SubstationIntermediate point Duke SubstationIntermediate point Pinal Central SubstationIntermediate point Randolph SwitchyardIntermediate point Abel SubstationIntermediate point Dinosaur SubstationPoint of Termination Browning SubstationLength Approximately 100 MilesThe proposed line is part of former Southeast Valley Project (SEV). The first segments of the projectswere finalized in:2007 – Dinosaur Substation2007 – Dinosaur – Browning 230kV2010 – Randolph – Browning 500kV energized at 230kV2010 – Randolph – Abel – Dinosaur 230kV2011 – Abel 230kV SubstationThe Pinal West – Duke-Pinal Central-Abel – Browning 500kV line will close the SEV loop in 2014. As apart of the project following facilities will be built:2014 – Pinal Central – Randolph 230kV2014 – Pinal Central – Browning 500kV (the voltage and configuration change of the 2010 Randolph-Browning 230kV section)2014 – Pinal West – Pinal Central 500kV and 230kV2014 – Pinal Central 500kV and 230kV Substation2014 – Duke 500kV SubstationThe Central Arizona Transmission System Study identified a number of system

Eldin Dizdarevic(602) 236-0960

(SRP)


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additions necessary to accommodate load growth and access to energy sources in the central Arizona area. This transmission line is the second segment of a series of transmission lines to serve the central Arizona region. This segment will initially provide an interconnection with the Palo Verde market area to market power to the Phoenix and central Arizona areas, and to accommodate the growth in development and population in Pinal County.

Desert Basin-Pinal Central 230 kV Line

230 2014 .2 Point of Origin: Desert Basin Power Plant 230kV SwitchyardIntermediate point: NonePoint of Termination: Pinal Central 230kV SubstationLength Approximately: 21 milesThe purpose of the project is to remove the Remedial Action Scheme installed on Desert Basin Generating Station, improve reliability of the 230kV system in the region by reducing the loading on existing lines in the area, increase local area system capacity, reduce reliance on second party transmission system and to establish the Pinal Central Substation which was identified as one of the future injection points of power and energy into the central Pinal County load area.

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Eastern Mining Area Expansion Project

230/115 2019 .5 The purpose of the project is to increase capacity to accommodate growing mining customer load. Several routing options are under consideration; however, the likely routing for the new transmission would be to follow the APS Cholla ‐ Saguaro 500kV line until it crosses SRP’s 115kV line. In that vicinity and adjacent to Ray 115kV Substation, a new 230kV substation would be constructed, tentatively called RS29.

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Price Road Corridor Project

230 2017 .5 Point of Origin: Kyrene 230kV SubstationIntermediate point: Knox, RS27 and RS28 SubstationsPoint of Termination: Schrader 230kV SubstationLength Approximately: 12-19 milesThe purpose of the project is to serve growing industrial and commercial customer loads along the Price Road Corridor, adjacent to Price Road in south Tempe and Chandler. Line routes will be determined through the CEC process. The project will consist of two new 230kV Substations located within the Price Road Corridor (a five‐square‐mile area bounded by Chandler Boulevard, handler Heights Road, Dobson Road, Price Road and the Gila River Indian Community). The new RS28 230kV Substation will be located in the southern portion of the Price Road Corridor, and the new RS27 230kV Substation will be located in the northern portion. The project will consist of a new single circuit Schrader – RS28 230kV line; a new double circuit Knox – RS27 230kV line; and a new double circuit RS27 – RS28 230kV line. This project will be built in phases with the first phase, Schrader – RS28 being energized in 2017.

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Rogers – Santan 230kV line

230 2020 .25 Point of Origin: Santan 230kV SubstationIntermediate point: NonePoint of Termination: Rogers230kV Substation

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Length: Approximately 9 milesThe purpose of the project is to meet potential growing customer loads in the eastern valley. The Santan – Rogers line reconfiguration will follow the current route of the Santan – Thunderstone 230kV line. This project will use existing circuit position on existing structures. Reconfiguration of the line will be done in tandem with reconfiguration of Browning – Corbell 230kV line.

Silver King – RS-29 230kV Project

230 2018 .25 Point of Origin: Silver King 230kV SubstationIntermediate point: NonePoint of Termination: New RS-29 230kV SubstationLength: Approximately 12-14 milesThe purpose of the project is to increase to accommodate growing customer load. Several routing options are under consideration with the most likely routing that follows APS Cholla-Saguaro 500kV line.

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New Superior – New Oak Flat 230kV line

230 2021 .25 Point of Origin: A New 230kV Substation near the existing Goldfield – Silver230kV line, tentatively named “New Superior”Intermediate point: NonePoint of Termination: New 230kV Substation near Oak FlatLength: Approximately 3.5 milesThe purpose of the project is to serve growing customer loads at Oak Flat. The location of the New Superior and the New Oak Flat sites are still being determined. The preliminary 230kV alignment will be identified after these details are received.

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New Oak Flat – Silver King 230kV line

230 2021 .25 Point of Origin: A New 230kV Substation near the existing Oak Flat 115kV Station, tentatively named “New Oak Flat”Intermediate point: NonePoint of Termination: Silver King 230kV SubstationLength: Approximately 3 milesThe purpose of the project is to serve growing customer loads at Oak Flat. The alignment will closely follow the existing 115kV circuit connecting Silver King to Oak Flat.

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Abel – Pfister - Ball 230kV line

230 2021 .25 Point of Origin: Santan ‐ Schrader 230kV line (near existing Moody 69kV Substation and future Ball (RS17) 230kV Substation)Intermediate point: New Pfister (RS24) 230kV SubstationPoint of Termination: Abel 230kV SubstationLength: Approximately 20 milesEstimated in-service dates are:2021- Abel – Santan 230kV line2021- Abel – Schrader 230kV lineTBD- Pfister SubstationThe purpose of the project is to meet expected load growth in the eastern service territory. This project is a double circuit 230kV line and a new 230kV substation that connects to the existing Santan ‐ Schrader 230kV line. The new

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double circuit 230kV line will be routed generally south and east from a point on the Santan ‐ Schrader 230kV line near the existing Moody 69kV Substation andfuture Ball (RS17) 230kV Substation to the new Pfister (RS24) 230kV ubstation in the southeastern portion of the town of Queen Creek. From Pfister 230kV Substation, the 230kV line will continue south and east to the Abel 230kV Substation.

Silver King – New Pinto Valley 230kV line

230 2021 .25 The purpose of the project is to serve growing customer loads at Pinto Valley. The anticipated route for this project parallels the existing Coronado - Silver King 500kV line out of Silver King to the north until it turns east to terminate at a Substation proposed in the vicinity of the existing 115kV Pinto Valley Station.

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Schrader-Abel 230 kV Line 230 2019 .1 This 230 kV transmission project is projected to be in service by 2019. “

Kyrene 500/230 kV Transformer

500/230 5/2012 .1 A third Kyrene 500/230kV transformer will be constructed and energized by May 2012. APS is participating with SRP on the transformer.

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Rudd 230/69 kV Transformer

230/69 4/2018 .1 The first Rudd 230/69kV transformer will be constructed and energized by April 2018.

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Schrader 230/69 kV Transformer

230/69 4/2014 .1 A second Schrader 230/69 kV transformer will be constructed and energized by April 2014.

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Resolution Copper 230kV Line

230 2018 .1 This project is driven by customer load growth, approximate mileage is 14. This 230kV transmission project is scheduled to be in service by 2018.

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Abel 230kV Generation 819 5/2016-5/2020

.1 Nine 91MW generating units are scheduled to be installed at Abel 230kV station. The first unit is scheduled to be in service by 5/2016, the second unit by 5/2018, the third and fourth units by 5/2019 and the rest of the units by 5/2020.

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Other Joint SRP/APS Projects

500 2011-2016 .2 SRP and APS jointly plan to construct the following transmission facilities: Palo Verde-Delany (Harquahala Junction) 500 kV Line (in-service date 2014) Delany (Harquahala Junction)-Sun Valley (TS5) 500 kV Line (in-service date remains 2015. Morgan(TS9)-Pinnacle Peak 500 kV Line (in-service date 2011). Palo Verde-North Gila 500 kV Line (in-service date remains 2014). Sun Valley (TS5)-Morgan (TS9) 500 kV Line (in-service date 2016).

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Other SRP 115/230/345 kV Transmission Projects

115/230/345 2014-2020+

.6 RS26, formerly Fountain Hills Station-115 kV, 230 kV or 345 kV from Stewart Mountain, Goldfield or APS’ Cholla-Pinnacle Peak 345 kV Line (in-service date moved beyond SRP’s 10 year plan)

Ball Loop-In (in-service date moved beyond SRP’s 10-year plan)At this time, the in-service date for each of the following projects is not yet determined and is subject to further additional study work.

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Browning-Thunderstone 230 kV Line Browning-Corbell 230 kV Line Silver King-Browning 230 kV Line Silver King-Browning 230 kV/Superior Tie Santa Rosa-CATSHV03 230 kV Line Pinnacle Peak-Brandow 230 kV Line with a possible loop into Rogers or

Thunderstone Silver King-Knoll-Hayden 230 kV Line Point on the Kearny-Hayden 115 kV Line to Hayden double circuit loop Pinal Central-Abel-RS20 500kV line

Southline Transmission Project

345/230 2016 2 2 SouthlineTransmission,L.L.C.proposes to construct the Southline Transmission Project, a high-‐voltage electric transmission line and associated facilities in southern New Mexico and southern Arizona. The proposed project would include a New Build Section (New Build) and an Upgrade Section(Upgrade)

1. New Build -‐-‐ The first section is a proposed double-‐circuit 345-‐kV line originating at the Afton Switching Station outside Las Cruces, New Mexico, and terminating at Apache Switching Station in Southeastern Arizona;2. Upgrade -‐-‐ The second section is a proposed upgrade of the Western Area Power Administration's existing 115kV Apache to Saguaro transmission line, to a 230kV double-‐ circuit line from Apache to Saguaro and Tortolita. As detailed in the table below, the Southline Phase 2 Report confirms non-‐simultaneous transfer capability for the following four interfaces: A) East-‐to-‐West of 1,037 MW for Afton West, B) East-‐to-‐West of 1,000 MW for Apache West, C) West-‐to-‐East of 430 MW for Tortolita/Saguaro East (715 MW with Western’s potential Tucson-‐Oracle 115kV line re-‐conductor project), and D) West-‐to-‐East of 971MW for Apache East. Southline has worked diligently with the PRG to identify necessary mitigation and follow up actions that are outlined in the Phase Report.

DougPatterson(Southline

TransmissionProject)

(415) 787-4209

SunZia Southwest Transmission Project

500 2020 9 3000 MW 3 3 3The original SunZia Southwest Transmission Project was envisioned to be comprised of three segments of two 500 kV (AC) lines each from the renewable resource energy zone(s) in central New Mexico (referred to in this report as SunZia East) to the proposed Pinal Central 500 kV substation (to be operated by Salt River Project) in central Arizona. SunZia examined two intermediate electrical interconnections: one at a new SunZia South 500 kV substation near the existing Luna 345 kV substation in southwestern New Mexico (to be operated by El Paso Electric Company (EPE)), and another at the proposed Willow 500 kV Substation (to be operated by Tucson Electric Power (TEP)) in southeastern Arizona. Taken together with these two intermediate substations, the three project segments are created: (1) SunZia East to SunZia South; (2)

Jim HsuPower Engineers,

Inc.(Southwestern Power Group)

(480) 838-1427


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SunZia South to Willow 500 kV; and, (3) Willow 500 kV to Pinal Central.The modified POS will be changed slightly to exclude a 500/345kV transformer at Luna and include only one intermediate electrical interconnection at the Willow 500 kV Substation. The 3 SunZia South Substation will initially only include a series capacitor bank (70% series compensation).Additional information that is periodically updated is available at the SunZia Project Website: www.sunzia.net.

Centennial West Clean Line HVDC Project

600 Q1/2018 7 3500 1 1 1The project consists of a 900 mile 3,500 MW HVDC transmission line between northeastern New Mexico, north-central Arizona, and southern California.


Inc. forCentennial West Clean Line LLC.(480) 838-1427

North Gila-Imperial Valley #2 500 kV Project

500 Q3/2018 8 1 The 85 mile NG-IV #2 500kV project is a major intertie expansion between the North Gila area (southwest Arizona) and the Imperial Valley area (southern California); this line would parallel the existing North Gila-Imperial Valley line (also known as the Southwest Power Link, or SWPL), with an expected minimum separation of 250 feet from the existing SWPL. The potential for a second circuit would be proposed to be constructed on the same set of structures, and would potentially loop in and out of the existing Highline 230 kV substation along the Highline Canal. The second circuit could be operated at 230kV initially until the operational and scheduling need develops over the years to potentially operate at 500kV. An additional alternative that we have been asked to review by the PCRG is to have a single 500kV line andwith the loop-in to the existing Highline 230kV station. Review is currently underway of this configuration.


Inc. forSouthwest

Transmission Partners

(480) 838-1427

Pinal Central – Tortolita 500 kV Line

500 2016 .3 TEP plans to construct a 500-kV line from the proposed Pinal Central Substation to TEP’s Tortolita Substation. The expected in-service date for this project is December 2015. TEP conducted an open season to solicit interest in this project. The Arizona Corporation Commission (ACC) granted a Certificate of Environmental Compatibility (CEC) in July 2012.

EvaMarie King(TEP)

(520) 745-3113

Hassayampa – Pinal West 500-kV Line Loop-In:

500 2015 .25 TEP plans to construct a 500-kV line loop-in that is less than 3 spans and will drop in from the existing line into the existing Jojoba switchyard. This project will provide connectivity between two existing 500kV transmission lines. The expected in-service date for this project is 2016. The FERC interconnection study is currently in progress.

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Willow 345 kV Switchyard 345 2016 .3 TEP plans to construct the Willow 345-kV switchyard to accommodate a generator interconnection request. This switchyard will accommodate the lines to the generator and loop-in TEP’s Greenlee – Winchester 345-kV line. The scheduled in-service date has been delayed to late 2016. A System Impact Study is underway regarding this interconnection request.The Willow switchyard may also accommodate other renewable generation

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interconnection request with in-service dates earlier than 2016. Studies have not begun on these requests.

Tortolita-South 345 kV line 345 2022 .1 At this time, the in-service date for each of these projects is beyond the 10 year time frame but the schedule is tentative and subject to change following the completion of study work to be conducted by TEP

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Vail-South #2 345 kV line 345 2022 .05 At this time, the in-service date for each of these projects is beyond the 10 year time frame but the schedule is tentative and subject to change following the completion of study work to be conducted by TEP

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Westwing – South #2 345 or 500 kV Line or Pinal West – South #2 345 or 500 kV Line

500 or 345 2022 .05 At this time, the in-service date for each of these projects is beyond the 10 year time frame but the schedule is tentative and subject to change following the completion of study work to be conducted by TEP

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Tortolita – Winchester 500 kV Line

500 2022 .05 This is a new 500 kV transmission line project. The schedule is tentative and subject to change following the completion of study work to be conducted by TEP.

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Winchester – Vail #2 345 kV Line

345 2022 .05 This is a second circuit between Winchester and Vail parallel to existing circuit. The schedule is tentative and subject to change following the completion of study work to be conducted by TEP.

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Winchester – Vail #3 345 kV Line

345 2022 .05 This is a third circuit between Winchester and Vail parallel to existing circuit. The schedule is tentative and subject to change following the completion of study work to be conducted by TEP.

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Springerville – Greenlee #2 345 kV line

345 2022 .05 At this time, the in-service date for each of these projects is beyond the 10 year time frame but the schedule is tentative and subject to change following the completion of study work to be conducted by TEP

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Vail – Irvington – South 345 kV Line

345 2022 .1 At this time, the in-service date for each of these projects is beyond the 10 year time frame but the schedule is tentative and subject to change following the completion of study work to be conducted by TEP

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Irvington – South 345 kV Line

345 2022 .1 At this time, the in-service date for each of these projects is beyond the 10 year time frame but the schedule is tentative and subject to change following the completion of study work to be conducted by TEP.

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Saguaro – Winchester 500 kV Line

500 2022 .1 At this time, the in-service date for each of these projects is beyond the 10 year time frame but the schedule is tentative and subject to change following the completion of study work to be conducted by TEP.

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Tres Amigas Super Station 345 Q4 2017 4 750 MW 1 Frank Barbera


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Tres Amigas (TA) is developing the Phase I of the Tres Amigas Super Station (TASS) which will be an HVDC back to back connection between the Western Electric Coordinating Council (WECC) and the Southwest Power Pool (SPP) systems. The Phase I will consist of a 750MW back to back HVDC system utilizing voltage source converter (VSC) technology. Phase II is anticipated to provide an interconnection between the SPP and ERCOT interconnects. Successive phases may increase the TASS capacity between the interconnects..The Tres Amigas project was placed in the WECC portal on September 17, 2010. The Initial Progress Report for the project was submitted to the WECC on February 23, 2012, which initiated the Project Coordination Process and periodic updates have been provided. The Comprehensive Progress Report, submitted on April 6, 2013, provided an overall description of the Phase I Project, results of studies performed by PNM and status of the TASS.

(203) 216-1060

Desert View- NVE Northwest 230 kV Line

230 12/2012 .2 640 MVA 1As reported to WECC in previous annual reports, NV Energy (NVE) was originally planning to own this line; however, NVE decided to abandon these plans. As such, VEA has decided to permit and build this facility, which represents one of the two final segments of YEA's Pahrump to NVE Northwest 230 kV transmission project. VEA has nearly completed all project permitting efforts with the BLM and BIA. All major materials have been ordered and construction of this 4.5 mile segment is expected to begin in June, 2012 with an in-service date of December, 2012.

Dale Broveak(775) 727-5312

VEA

Stirling Mountain – Vista 230/138 12/2012 .1 192 MVA VEA has substantially completed all construction efforts on this 25 mile segment. The in service date is coincident with the remaining four segments associated with the Pahrump to Northwest 230 kV project, which is anticipated to be December, 2012.

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Vista – Charleston 138 12/2013 .1 192 MVA VEA plans to construct a 138 kV line between VEA Vista Substation and VEA Charleston Substation. The tentative in-service date is December, 2013. VEA is currently permitting and acquiring right-of-way for this approximate 14 mile line.

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Vista – Pahrump 230 12/2012 .1 320 MVA VEA is finalizing the acquisition of right-of-way for this 13 mile segment. Major materials have been ordered and construction of this segment is expected to begin in September, 2012 with an in-service date of December, 2012.

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Desert View 230 kV Metering Station

230 12/2012 .1 VEA plans to construct the Desert View 230 kV Metering Station as a tie between VEA and NVE facilities for both electric as well as a VEA communications h u b near Las Vegas. Major materials have been ordered. VEA anticipated construction s t a r t i n g in June, 2012 with an in-service date of December, 2012.

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Stirling Mountain -Desert View 230 kV Line

230 12/2012 .1 320 MVA VEA has substantially completed all construction efforts on this 38 mile segment. The in service date is coincident with the remaining four segments associated with the Pahrump to Northwest 230 kV project, which is anticipated to be December, 2012.

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San Luis – Rio Colorado Project

604 Q1/2013 170 This project consists of a 604 MW two-on-one combined cycle plant to be constructed one mile south of the Arizona (U.S.) / Mexico border. Interconnection will take place via two new 230 kV lines from the plant to the existing 161 kV Gila station and on to the existing North Gila station in Yuma, AZ

Leonard YorkWAPA-DSW

(602) 605-2797

Transmission Infrastructure Program (TIP) Project 230-kV ED#5 – 230 kV Transmission Project

230 7/2014 1 Installed a second circuit, 22 miles long, on Western’s 115-kV Casa Grande-Empire and Empire-ED5 transmission lines which were recently rebuilt as dual circuit steel monopoles, and 23 miles, on the SRP’s Duke-Pinal Central 500-kV steel monopoles.

Todd RhoadesWAPA – DSW602-605-2613

TIP Project ED#5 Substation Project

230 7/2014 1 Construct a new 230 kV substation at ED#5’s existing 115 kV yard. Project includes a 225 MVA 230/115/12.47 kV transformer, two breaker 230 kV ring bus configuration, 3 breaker and a half bays built to 230 kV standards but operated at 115 kV.

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TIP Project Test Track Substation Expansion Project

7/2014 1 Convert existing 4 breaker ring bus to 2 breaker and a half bays, add 2 new breaker and a half bays, and build tie line into SRP’s Duke substation.

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Longtin Substation Project 230/69 10/2014 1 Add a new 230/69 kV substation, sectionalizing the Davis-Topock #1 transmission line. The 230 kV facilities will be a 3 breaker ring bus configuration.

Michael BairdWAPA-DSW

602-605-4428


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LIST OF ANNUAL PROGRESS REPORTS TO WECC - 2014CALIFORNIA-MEXICO POWER AREA




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Canyon Power Project 194 12/2011 1 A new generating facility to be located in the city of Anaheim (County of Orange) will have a maximum net plant output of 194.1 MW. The project consists of four (4) GE LM6000 simple cycle natural gas combustion turbines and interconnects to ANHM’s 69 kV electrical system. Planned operating date of first unit is July 2011 and the overall project completion expected by December of 2011.

Nam NguyenANHM

(714) 765-5122

Improvements to Santa Isabel Substation

230 and 161 8/2015 .1 New bus 20500 “SIP-230” 230 kVNew transformer 230/161 kV, 225 MVA 20500 “SIP-230”/ 20154 “STA-161”New transmission line 20118 “ROA-230” – 20500 “SIP-230” 230 kV, 1 Ck, 1113ACSRNew transmission line 20500 “SIP-230” – 20103 “WIS-230” 230 kV, 1 Ck, 1113ACSRNew transmission line 20135 “MXI-161” – 20154 “STA-161” 161 kV, 1 Ck, 1113ACSRAll above commercial date, late August 2015.

Jose SantamariaCFE

011 52 (686) 558-1541

Tecnologico 230 kV SVC 200 MVAR

230 6/2012 .1 A new SVC (-75 / +200 MVAr) will be connected at the Tecnologico 230 kV substation (20111 “TEK-230”) for local voltage support and to increase reactive margin in the Valley Area of the CFE Baja California system.

El Centinela 230 kV Substation

230 11/2011 .1 A new substation “El Centinela” (20453 “CNT-230”) is planned to be built between buses 20111 (TEK-230) and 20112 (STB-230).

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Carranza 230 kV Substation

230 5/2012 .1 A new substation “Carranza” (20461 “CZA-161”) is planned to be built between buses 20153 (GOR-161) and 20147 (CTY-161).

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Valle de Puebla 230 3/2012 .1 A new substation “Valle de Puebla” (20460 “VPA-230 “) is planned to be built between TL 20111 “TEK-230 “ – 20112 “STB-230 “ 230 kV.

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Paul DidsayabutraCISO

(916)608-1281

Generation Projects 7684 5/1/08 – 11/30/14

1 The following are generation projects in the ISO generation interconnection queue that the facility studies have been completed and the interconnection agreements have been executed: Devers Substation – 850 MW – 2010 Tesla Substation 230 kV bus E – 1156 MW – 11/30/14 El Segundo 220 kV bus – 630 MW – 6/1/13 Devers-Palo Verde 500 kV line near Blythe – 520 MW – 2010 McCall Substation – 300 MW – 3/31/13 Eastshore Substation – 361 MW – 6/1/12 Between Cottonwood and Vaca-Dixon – 715 MW – 2010

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Walnut Substation – 501 MW – 1/3/13 Imperial Valley Substation – 300 MW – 12/1/10

These projects are to be reported on by the individual entities responsible for them so the CISO will quit reporting in this forum.

Imperial Valley – Dixieland Substation 230 kV Interconnection

230/92 12/2015 1.30 0 0 0 4

The project consists in constructing a new single circuit (prepared for double circuit) 230 kV transmission line from IID/SDG&E’s Imperial Valley Substation (IV Sub) to IID’s Dixieland Substation. The IV Sub to Dixieland Substation 230 kV transmission line will span an estimated 7.3 miles. The project also includes the installation of a 230/92 kV 300 MVA transformer at Dixieland Substation and interconnection facilities at Imperial Valley Substation.

The project will provide back-up for the potential outage of the existing “S” 230 kV transmission line. The new interconnection line will also increase the IID import/export capability to meet future load requirements.

David L Barajas760-482-3450

(IID)

Ramon Substation 230/92 kV Transformer Addition

230/92 12/2015 .2 225 MVA The project consist of installing a second 230/92kV 300 MVA auto-transformer and convert the existing Ramon Substation 230 kV and 92 kV ring bus to breaker-and-a- half bus configuration.The purpose of this project is to provide redundancy to the existing Ramon 230/92 kV transformer.

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Path 42 Upgrade Project (IID’s Scope of Work)

230 12/2014 .75 The project consists in reconductoring approximately 20 miles of a double circuit 230 kV transmission line from IID’s Coachella Valley substation to SCE’s Mirage Substation with one circuit looping in-and-out IID’s Ramon Substation. The project also includes converting the Coachella Valley Substation 230 kV from ring bus to breaker-and-a-half bus configuration, installing a 230 kV 48 MVAR capacitor bank at Coachella Valley Substation and the installation of a Path 42 Special Protection System for outages in IID’s 230 kV collector system and Path 42 intertie lines.

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Imperial Valley Area Policy – Driven Transmission Line and Collector Station project

230 6/2015 1 In December of 2012, the CAISO initiated an accelerated competitive solicitation process conducted for a policy-driven transmission line and collector station in the Imperial Valley area (the “IV Policy Element”). In July of 2013, the Imperial Irrigation District (IID) was selected as the Approved Project Sponsor to finance, own, construct, operate and maintain the IV Policy Element.The IV Policy – Driven Transmission Line and Collector Station Project, consists of a 230 kV collector station (Liebert station), located approximately one mile north of Imperial Valley (IV) Substation, and a short (approximately 1.4 mile) 230 kV transmission line connecting Liebert Station to IV Substation. The transmission line and the Liebert Station will become network facilities and will be turned over to the ISO operational control, once IID complete the construction of additional facilities required to interconnect the IV Policy Element project to the IID electrical system.

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The additional facilities required to interconnect the IV Policy Element to the IID electrical system consist of a 230 kV Station (Fern) located in the north side of Liebert Station; a 230 kV bus tie between Fern Station and Liebert Station, and the connection of the 230 kV “S” line from El Centro Switching Station (ECSS) to Fern Station.In addition IID will construct a new 230 kV circuit from Fern Station to IV Substation as part of this project.Once the IV Policy Element and the additional facilities are constructed, IID will establish two points of interconnection in the south with the CAISO and San Diego Gas and Electric (SDG&E) – one via the bus tie between Fern station and Liebert CAISO operated station, and the other via the transmission line between Fern station and IV Substation.The project also includes the relocation of an existing Gen-Tie from a Solar Generation Station from IV Substation to Liebert CAISO operated station.

El Centro Switching Station (ECSS) to Highline Station double circuit 230 kV transmission line

230 4/2018 .5 Rebuild the ECSS to Pilot Knob 161 kV and the ECSS to Drop No.4 92 kV double circuit transmission line sections (18 miles) from ECSS to East Highline Canal intersection, build one mile of double circuit 230 kV transmission line to extend the line into Highline station. Build one mile of double circuit 230 kV transmission line to interconnect the remaining 161 kV line to Pilot Knob and the 92 kV line to Drop 4.The project includes the following upgrades in ECSS and Highline stations:Highline Substation: Upgrade 230 kV and 92 kV switch yards and building a new 161 kV Bus section, to interconnect the new 230 kV circuits to ECSS, the 161 kV line to Pilot Knob and the 92 kV line to Drop No.4 Generation Station.ECSS Substation: Upgrade the 230 kV switch yard to breaker–and-a-half bus configuration to accommodate the new 230 kV circuits from Highline Substation.This project is part of the initial phase of IID’s Strategic Transmission Expansion Plan (STEP).

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El Centro Switching Station (ECSS) to Fern Station double circuit 230 kV transmission line

230 4/2018 .5 Re-build the ECSS to the proposed Fern station single circuit 230 kV “S” transmission line (Approximately 17 miles) to double circuit 230 kV.Upgrade the ECSS 230 kV switch yard to interconnect the new double circuit 230 kV line to Fern Station and upgrade the Fern Station to accommodate the second 230 kV circuit from ECSS.This project is part of the initial phase of IID’s Strategic Transmission Expansion Plan (STEP).

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Talega-Escondido/Valley-Serrano 500 kV Interconnect Project (TE/VS Interconnect)

500 Q1/2014 1 1500 1 The TE/VS Interconnect provides a high capacity link between the main backbone of California to San Diego Gas and Electric’s (SDG&E) 230 kV grid, providing the only 500 kV connection between the northern part of the SDG&E system and Southern California Edison’s (SCE) 500 kV grid. By adding a future link between the Sunrise Project’s 500 kV Central Substation and the TE/VS Interconnects Case Springs Substation, a 500 kV loop could be formed

Rex Wait(760) 599-0086

The Nevada Hydro Company


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across the western section of the 500 kV lines from the Palo Verde area to Serrano on the north and Imperial Valley on the south. The project will also serve to connect the proposed 500 MW Lake Elsinore Advanced Pumped Storage (LEAPS) into the western grid. The TE/VS Interconnect is being permitted through the California Public Utilities Commission (A.10–07–001). Relevant FERC dockets: ER06–278, ER08–654. LEAPS License docket is P–11858.

LA Basin Re-powering Projects:Haynes Phase 2Scattergood

600530

7/201312/2015

3.1

.05

.05

2 0 0 0 0Planned in-service date is June 1, 2013.

Planned in-service date is December 2015.

John Gag-Kung Hu213-367-0506

(LDWP)

Upgrade terminal equipment on Northridge-Tarzana 230kV Line 1

230 6/2015 797 Upgrade terminal equipment on Northridge-Tarzana 230kV Line 1 “

Reconductor both Valley-Rinaldi 230kV Lines

230 6/2018 495 Reconductor both Valley-Rinaldi 230kV Lines “

Reconductor Toluca-Atwater 230kV Line 1

230 TBD 708 Reconductor Toluca-Atwater 230kV Line 1 “

Add a second Victorville500/287kV Transformer Bank

500/287 6/2023 460 Add a second Victorville500/287kV Transformer Bank

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Replace Toluca 500/230kV Banks G and H

500/230 6/2019 913 & 930 Replace Toluca 500/230kV Banks G and H “

MWC Wind Generation 100 5/2011 .1 New wind farm to interconnect at Intermountain 345 kV switchyard. “

Owenyo Solar 200 12/2016 .1 New solar PV plant to interconnect at Cottonwood 230 kV substation. “

Planned Wind #12 204 10/2011 .1 New wind farm to interconnect with Barren Ridge-Rinaldi 230 kV. “

Planned Solar #2 250 5/2014 .1 New solar PV plant to interconnect at Barren Ridge 230 kV substation. “

Pine Canyon Wind 150 4/2013 .1 The status is pending on the new wind farm to interconnect with the Pine Tree 230 kV substation.

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Planned Solar #3 350 12/2013 .1 The status is pending for the new solar PV plant to interconnect at Marketplace-Adelanto 500 kV substation.

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Planned Solar #6 150 8/2014 .1 Status is pending for a new solar PV plant to interconnect at McCullough 230 kV substation.

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Owenyo Solar 200 12/2015 .1 Status pending for a new solar PV plant to interconnect with the Cottonwood 230 kV substation.

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Adelanto Solar 9 12/2012 .1 Under construction for a new solar PV plant to interconnect with the Adelanto 500 kV substation.

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Planned Solar #8 90 12/2012 .1 Status is pending for new solar PV plant to interconnect with Barren Ridge 230 kV substation.

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Planned Solar #9 139 12/2013 .1 Cancelled the new solar PV plant to interconnect with Barren Ridge 230 kV substation.

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Planned Wind #8 201 12/2014 .1 New wind farm to interconnect with Cottonwood-Barren Ridge 230 kV. “

Planned Solar #17 300 12/2014 .1 New solar PV plant to interconnect with Barren Ridge-Rinaldi 230 kV.. “

Castaic Modernization Project

1255 1/2013 .1 The planned completion date for the Castaic Power Plant (Units 1 to 7) Modification Project is Janurary, 2013.

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Install new Scattergood-Olympic 230 kV Cable A

230 12/2015 656 MVA Install new Scattergood-Olympic 230 kV Cable A “

Barren Ridge Renewable Transmission Project (formerly Barren Ridge – Castaic Transmission Project)

230 12/2016 .5 1600 MW The planned in-service date is June 2016. It is budgeted and an RFP for construction has been issued.

To accommodate LADWP’s planned renewable generation along the Inyo-Rinaldi corridor LADWP is proposing the Barren Ridge Renewable Transmission Project (BRRTP) to access potential wind, solar and other clean, renewable resources from the Mojave Desert and Tehachapi Mountain areas of Southern California. The project is in Kern and Los Angeles Counties, and is approximately 77 miles in length from Barren Ridge Switching Station (BRSS) to Rinaldi Substation and 12 miles in length from Castaic Power Plant to the proposed Haskell Canyon Switching Station. The project will consist of:

1. Construction of a 230 kV double-circuit transmission line from the LADWP BRSS to Haskell Canyon Switching Station.2. Addition of a 230 kV circuit on the existing double-circuit structures from Haskell Canyon to the Castaic Power Plant.

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3. Upgrade the existing Barren Ridge – Rinaldi 230 kV transmission line with larger capacity conductors between the BRSS and the Rinaldi Substation.4. Construction of a new switching station at Haskell Canyon.5. Expansion of the existing BRSS.

The ultimate capacity between the BRSS and the Haskell Canyon Switching Station is approximately 1600 MW, while the existing rating is 459 MVA. The BRRTP is expected to have no regional impact.

Beacon Solar 250 1/2016 Project/Upgrade: Beacon SolarLocation: Barren Ridge Switching StationCapacity: 250 MWStatus: Under ConstructionIn-Service Date: January 2016

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Copper Mountain Solar 3 250 12/2015 Project/Upgrade: Copper Mountain Solar 3Location: Marketplace Switching StationCapacity: 250 MWStatus: Under ConstructionIn-Service Date: June 2015

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Moapa K-Road Solar 250 6/2016 Project/Upgrade: Moapa K-Road SolarLocation: Crystal Switching StationCapacity: 250 MWStatus: Under ConstructionIn-Service Date: June 2015

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Mirant Marsh Landing Generating Station

888 2013 2 The Mirant Marsh Landing Generating Station (MLGS), a proposed project near Antioch, CA will consist of four Siemens Energy simple cycle combustion turbine-generator units. The units will be located adjacent to Mirant’s Contra Costa Power Plant and will interconnect to the existing PG&E Contra Costa Power Plant 230 kV switchyard through two 230 kV transmission lines. Each unit of the MLGS will have a net winter rating of 222 MW and a net summer rating of 193.5 MW. The expected commercial operation date for the MLGS is May 1, 2013.

Chuck Hicklin925-427-3544Mirant Marsh

Landing

Lodi Energy Center Project 280 6/2012 1.5 NCPA has submitted an interconnection request to the CISO for the Lodi Energy Center Project. The project consists of a 1x1 combined cycle generation plant utilizing an F-Class technology gas turbine with a net output of 280 MW to the CAISO controlled grid. The project will interconnect to PG&E’s Gold Hill – Lodi Stig and Lodi Stig – Eight Mile Road 230 kV lines via the existing NCPA Lodi Switching Station.

Michael DeBortoli916-781-4258

(NCPA)

Gates – Gregg 230kV Line Project

230 12/2022 .5 This project is to construct a 68 mile long 230kV DCTL from Gates to Gregg with one side strung. This project will improve reliability in the Greater Fresno area, allow greater operational flexibility of the three units at the Helms Pumped

Kang-Ling Ching415-973-7637

(PG&E)


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Storage Plant (PSP), and help integrate renewable resources within California. Since the proposed Gates – Gregg 230kV line will be in parallel with the existing Gates – Gregg 230kV line that is one of the Path 15 lines, this project will trigger re-definition of Path 15.In the 2012/13 Transmission Plan Process, the CAISO recommended and approved the Gates - Gregg 230kV transmission line, constructed as a double circuit line. One of the circuits is to be strung initially (by 2022 or earlier), and the other will be strung in the future after demand has increased sufficiently (anticipated in the 2025-2027 timeframe).In June 2013, the consortium of PG&E, MidAmerican Transmission and Citizens Energy submitted a bid to CAISO for the Gates-Gregg 230kV transmission line and was awarded the project in November 2013.

Helms PSP Special Protection Scheme

5/2015 .1 Install redundant special protection schemes at multiple substations and Helms PSP to trip pumping units offline at Helms PSP.

Anupama Pandey(PG&E)

Henrietta-McCall 230kV Reconductoring

230 1/2015 .1 The Henrietta to McCall section of the Gates-McCall 230 kV Line will be reconductored to be capable of carrying 1893 amps under normal and emergency conditions. Upgrades to terminal equipment at Gates, Henrietta and McCall substations should be performed as necessary to accommodate the higher ratings.

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Newark - Ravenswood 230 kV Reconductoring

230 10/2016 .1 Reconductor the Newark - Ravenswood 230 kV Line with larger conductors. “

Tulucay 230/60 kV Transformer No.1 Capacity Increase

230/60 10/2017 .1 This project proposes to replace Tulucay Circuit Breaker No. 62 and all of its associated switches with a circuit breaker rated at 2000 Amps or higher. Any other associated terminal equipment will also be replaced as necessary

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Embarcadero-Potrero 230 kV Project

230 4/2016 .1 Construct a new 230 kV underground cable to connect Embarcadero and Potrero substations.

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McMullin-Kearney 230 kV Reconductoring

230 4/2015 .1 The McMullin to Kearney section of the Panoche-Kearney 230 kV Line will be reconductored to be capable of carrying 1893 amps under normal and emergency conditions. Upgrades to terminal equipment at Kearney and McMullin substations should be performed as necessary to accommodate the higher ratings.

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Weber 230/60 kV Transformer Nos. 2 and 2A Replacement

230/60 4/2016 .1 Replace Weber 230/60 kV Transformer Nos. 2 and 2a with a new transformer rated at least 300 MVA with LTC and associated equipment

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Contra Costa – Moraga 230 kV Reconductoring

230 7/2016 .1 Reconductor the Contra Costa - Moraga 230 kV DCTL with larger capacity conductors.


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Moraga Transformer No. 2 Capacity Increase

230/115 12/2016 .1 Replace Transformer number 2, 230/115 kV at Moraga Substation with a 420 MVA rated unit.

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Midway-Kern PP 230 kV Line Nos. 1, 3 and 4 Capacity Increase Project

230 5/2017 .1 Replace limiting components at Kern PP and Midway Substations, to achieve full capacity on the Midway-Kern 230 kV Line Nos. 1, 3 and 4

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Moraga - Castro Valley 230 kV Line Capacity Increase Project

230 4/2018 .1 Upgrade the limiting substation equipment (jumper conductors and wave traps) at Moraga and Castro Valley substations

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Fulton 230/115 kV Transformer

230/115 5/2021 .1 This project proposes to install a 230/115 kV transformer at Fulton Substation rated for 420 MVA or higher.

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Tesla - Newark 230 kV Upgrade II

230 12/2017 .1 Reconductor limiting sections of Tesla - Newark 230 kV No. 2 with larger capacity conductors.

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Rio Oso 230/115 kV Transformers

230/115 12/2019 .1 Replace the Rio Oso 230/115 kV transformers (Nos. 1 and 2) with two 420 MVA rated transformers. Convert 115 kV bus to BAAH.

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Rio Oso Area 230 kV Voltage Support

230 12/2019 .1 Install a new Static Var Compensator (SVC) at Rio Oso Substation and a new Shunt Capacitor at Atlantic Substation.

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Pittsburg 230/115 kV Transformer Capacity Increase

230/115 12/2017 .1 Install 3rd 230/115 kV Transformer at Pittsburg Substation with a rating of 420 MVA

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Ashlan-Gregg and Ashlan-Herndon 230 kV Reconductor

230 5/2018 .1 Reconductor limiting sections of Ashlan-Gregg and Ashlan-Herndon 230 kV sections with higher rated conductors.

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San Mateo Synchronous Condensor Replacement

115 5/2018 .1 Install reactive support device to replace old synchronous condensers at 115kV.

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Vaca Dixon - Lakeville 230 kV Reconductoring

230 7/2017 .1 Reconductor the Vaca – Lakeville No. 1, Tulucay – Vaca, and Tulucay – Lakeville 230 kV Lines with larger capacity conductors.

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Borden 230 kV Voltage Support

230 5/2019 .1 This project proposes to loop the Wilson-Gregg 230 kV Line into Borden Substation (Borden) and install 200 MVARs of mechanically switched capacitors on the Borden 230 kV bus.

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Morro Bay 230/115 kV Transformer

230/115 5/2019 .1 Install an additional 230/115 kV transformer at Morro Bay Substation rated for 200 MVA or higher.

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Kern PP 230 kV Area Reinforcement Project

230 12/2019 • Convert Kern PP 230 kV double bus single breaker arrangement to breaker and a half

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• Replace limiting equipment on Kern PP 230/115 kV transformer No. 4 as necessary to achieve full transformer rating• Install a 230/115 kV Transformer Special Protection Scheme at Kern 115 kV to mitigate overloads of Kern PP Transformer Nos. 3, 4, and 5

Wheeler Ridge Voltage Support

230 5/2020 .1 Install three 75 MVAR steps of mechanically switched capacitors on the Wheeler Ridge 230 kV bus, expand the 230 kV bus as necessary reconductor 0.5 miles of the Wheeler Ridge-Lakeview 70 kV line and transfer Copus from the Old River-Copus 70 kV line to the Wheeler Ridge-Lakeview 70 kV line.

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Rio Oso – Atlantic 230 kV Line

230 12/2019 .1 Construct a second Rio Oso – Atlantic 230 kV Line. “

Contra Costa sub 230kV Switch Replacement

230 12/2016 .1 Replace 230 kV Switch No. 239 at Contra Costa Substation that currently limits the Contra Costa PP-Contra Costa Sub 230 kV Line to 1600 Amps. Any other limiting element will be replaced as well.

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Gates No. 2 500/230 kV Transformer

500/230 12/2017 .1 Install a second 500/230/13.8 kV transformer (three single-phase units, 374 MVA each) at Gates Substation

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Kearney-Herndon 230 kV Line Reconductor

230 12/2017 .1 Reconductor 10 miles of the Kearney - Herndon 230 kV Line “

Warnerville-Wilson 230 kV Series Reactor

230 12/2017 .1 Install a 230 kV multi-step Reactor totaling 50.5 ohms, and associated equipment at Wilson Substation, on the Warnerville-Wilson 230 kV line

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Diablo Canyon Voltage Support Project

230 5/2017 .1 Install a +150/-75 MVAR Reactive support device at Diablo Canyon 230 kV Substation

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Lockeford-Lodi Area 230 kV Development

230 5/2020 .1 Construct new 15 mile 230 kV DCTL from Eight Mile Substation to Lockeford Substation

Midway-Andrew 230 kV 230 12/2019 .1 Upgrade existing 65 miles long Midway-Santa Maria 115KV line to 230kV “

Moraga-Potrero 230 kV Project

230 12/2020 .1 Establish a 230 kV connection between Moraga and Potrero Substations. “

Solar Star Generation Interconnection Project

110 6/2015 .1 Build a 230 kV Quinto Switching Station to interconnect 110 MW solar generation to Pacific Gas and Electric Company's (PG&E's) Los Banos-Westley 230 kV Line and reconductoring 26 miles of the line from switching station to Westley Sub

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Los Banos-4C779 #1 230kV Line Reconductoring Project

230 7/2016 .1 Reconductor 4.5 miles of the Los Banos - Panoche 230 kV No. 1 Line with a higher capacity conductor

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Gregg-Herndon #2 230 kV Line Circuit Breaker

230 5/2017 .1 Replace limiting terminal equipment on the Herndon-Gregg #2 230 kV Line at Herndon substation.

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Bellota – Warnerville 230 kV Line Reconductoring

230 5/2017 .1 Reconductor the Bellota – Warnerville 230 kV Line with a larger capacity conductor

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Glenn 230/60 kV Transformer No. 1 Replacement

230/60 5/2018 .1 Replace the existing 230/60 kV Transformer No. 1 and regulator at Glenn with a new 3-phase, 230/60 kV with a Load Tap Changer.

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Monta Vista 230 kV Bus Upgrade

230 5/2018 .1 Install bus-sectionalizing and bus-parallel breakers on the Monta Vista 230 kV bus

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Midway-Kern PP 230 kV #2 Line Project

230 5/2019 .1 Reconductor the Midway-Kern #1 230 kV Line, split it to Midway-Kern #1 and #2 230kV Lines, remove crosstie connections to split the Midway-Kern #1 Line into two circuits, reconductor the Bakersfield #1 and #2 230 kV Taps, loop Bakersfield 230 kV substation, remove Stockdale 230 kV Tap #1 and #2 from the Midway-Kern lines and relocate to Kern PP 230 kV bus

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Estrella Substation 230/70 5/2019 .1 Construct a new Estrella 230/70 kV substation, with Breaker and a Half (BAAH) bus configuration , approximately 5 miles east of the existing Paso Robles Substation. Install one 45 MVA distribution 230/12 kV, 2 feeder breakers and associated outlets

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Midway Fault Duty Mitigation Project

230 4/2016 .1 Install reactors at 230 kV side of Midway transformer banks 11, 12 and 13. “

Wheeler Ridge Junction Substation

230/115 5/2020 .1 Construct a new 230/115 kV Substation with Breaker and a Half at Wheeler Ridge Junction, Convert 15.5 miles of the Wheeler Ridge – Lamont 115 kV Line to 230 kV

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Morgan Hill Area Reinforcement Project

230/115 5/2021 .1 Construct new 230/115 kV Spring Substation in Morgan Hill, with connections into the Metcalf-Moss Landing No. 2 230 kV Line and the Morgan Hill-Llagas 115 kV Line.

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Q779 200 4/2016 .1 Interconnect a 200 MW (net output) solar-based generation facility to Los Banos – Panoche 230 kV Line No. 1 by looping in through a new PG&E-owned switching station. The new Switching Station is a 2-Bay, 5 Breaker 230 kV.

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Q829 240 4/2016 .1 Interconnect a 240 MW (net output) of generation facility to a new PG&E owned 230kV switching station that loops into PG&E’s Moss Landing – Panoche and Coburn – Panoche 230 kV Lines. Construct a new 3 Bay, 8 breaker Switching station (BAAH)

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Q643X 200 4/2016 .1 Interconnect a 200 megawatt (MW) (net output) of generation facility to a new “


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PG&E owned 230 kV switching station that loops into PG&E’s Panoche – Helm and Panoche – Kearney 230 kV lines.

Q877 280 10/2016 .1 Interconnect 280 MW solar generation to Morro Bay - Gates 230 kV Line Number 2.

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Q258 12/2017 .1 To interconnect new generation, install a new 230 kV circuit breaker at Contra Costa Substation, install SPS at Contra Costa Substation, reconductor Contra Costa – Delta Pumps 230 kV Line, only east circuit, reconductor Las Positas – Newark 230 kV Line, only west circuit.

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Stockton Generation Expansion Project

508 5/2017 .1 Stockton Generation, LLC, proposing to interconnect two gas turbines and a steam turbine with a combined output of 508 MW. The proposed Commercial Operation Date of the project is May 1, 2014. The project will interconnect with PG&E’s Bellota – Tesla No. 2 and Weber-Tesla 230 kV transmission lines by looping these lines into a new switching station and require reconductoring of the Warnerville-Wilson 230 kV Line.

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Other Transmission Projects – Granted Waiver of “Significant Transmission Project” Status

115/230 2012-18 3.5 LeGrand – Chowchilla 115 kV Reconductoring – June 2015Corina – Eagle Rock 115 kV Reconductor – May 2014North Valley and Sierra 230 kV line Capacity Increase – May 2015

Kang-Ling Ching415-973-7637

(PG&E)

SMUD Solano Wind Phase III Generation Interconnection Project

128 3/2012 .3 The SMUD Solano Wind Project Phase III Generation Interconnection (the “Project”) consists of forty-four (44) wind turbine Generating Units each rated at 3 MW. The maximum net output to the CAISO Controlled Grid will be 128 MW. The step-up transformers are one three phase, 3.16 MVA, 1/34.5 kV for each wind turbine Generating Unit and one three-phase, 166 MVA, 34.5/230 kV for the total output of the Project. The Project will be connected to the existing Sacramento Municipal Utility District (SMUD) Russell Substation 230 kV bus which is connected to PG&E’s Birds Landing Switching Station 230 kV bus.

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Calpine Russell City Energy Center

600 7/2012 .1 Interconnect 600 MW generation project to PG&E's East shore Substation 230 kV Bus. Convert bus. Replace transformer. Build 230 kV generation tie line.

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Green Ridge Wind Power Project

75 10/2012 .3 Green Ridge Power, LLC is proposing to repower the Jackson Substation via Green Ridge Wind Power Generation Interconnection Project. This project will interconnect 75.1 MW (net output) wind power-based generation facility to the PG&E transmission system. Jackson Substation is currently interconnected onto PG&E’s Lone Tree-Cayetano 230 kV Line.

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Montezuma II Wind Generation Interconnection Project

78 5/2014 .3 NextEra Energy Resources, LLC (NextEra), proposed to interconnect its Montezuma II Wind Project (The Project) to the California Independent System Operator Corporation (“CAISO”) Controlled Grid. The Project consists of 34 Siemens wind turbine generating units each rated at 2.3 MW with total output of

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78.2 MW. This project proposes to interconnect to a new ring bus at the existing Montezuma Project (High Winds III) Substation.

Franklin 230/69 kV bulk substation

230/69 2018 1 The existing Rancho Seco – Pocket 230 kV #2 line will be looped in to a new 230/69 kV bulk substation at Franklin, Sacramento County, to serve local load growth. Anticipated in-service date is 2018.

Dilip Mahendra916-732-6180

(SMUD)

Bay Blvd (formerly Bayfront) Substation Transmission Project

230/69 12/2017 .1 The Bay Blvd 230/69 kV Substation Transmission project is designed and constructed to better serve SDG&E local load and includes the following scope of work: 1) Construct a new 230/69 kV substation that will replace the existing South Bay 138/69 kV substation; 2) Install two 224 MVA 230/69 kV transformers; 3) Loop in the Miguel-Silvergate 230 kV transmission line into the new substation; 4) Transfer all 69 kV lines presently connected to the South Bay 138/69 kV substation to the new substation; and 5) Re-configure existing 138 kV lines to eliminate the need for the South Bay 138 kV bus.

David Wang858-654-8162

(SDGE)

South Orange County Reliability Enhancement Project

230/138 12/2018 .7 The project scope contains transmission and distribution work. The system changes required to accommodate the new Capistrano 230/138/12kV substation are as follows:a. Distribution

Rebuild the aging and obsolete distribution equipment (138kV & 12kV) at Capistrano substation using three new 138/12kV transformers (ultimate 4-138/12kV banks).

b. SubstationConstruct a new gas insulated (GIS) 230kV switchyard at the existing Capistrano substation with two 230/138kV transformers and a 230kV capacitor.

c. TransmissionConstruct two new 230kV circuits from Talega to Capistrano, one from SONGS and the other from Talega (tapping the existing TL23030 from Escondido), by rebuilding the existing TL13835 with double-circuit structures (8 miles between Talega and Capistrano). Terminate six adjacent 138kV lines at Capistrano sub.

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ECO 500/138 kV Substation

500/230/135 11/2014 1 This project will construct a 500/230/138kV substation near the Southwest Powerlink (SWPL), between Imperial Valley substation and Miguel substation, and it will extend a 138kV line from the new substation to the existing Boulevard substation. Also, the project will rebuild Boulevard substation on a neighboring site in order to accommodate generation interconnections at Boulevard. Scope of work include:a. Substation

i. Site preparationii. Construction of the new 500/230/138kV substationiii. Site preparation for new Boulevard substation location (near or adjacent to existing site)

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iv. Construction (rebuild) of 138/12kV Boulevard substation on neighboring site

b. Transmissioni. Loop SWPL into the new ECO substation.ii. Construction of a new 14-mile twin circuit 900 ACSS 138kV transmission line from the new ECO substation to rebuilt Boulevard substation.

c. Otheri. Construction of new microwave communications facilitiesii. ECO substation land purchaseiii. Boulevard substation adjacent land purchaseiv. Acquisition of a new ROW for the new 138kV transmission line

3rd 500/230 Transformer Bank (IV Bank 82) at Imperial Valley Substation

500/230 3/2013 .5 1100 MVA This project will add 500/230 transformer at SDG&E’s Imperial Valley Substation. Scope of work include:a. Substation

i. Site preparationii. Add 3rd 500/230 transformer at 1100MVA rating.

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Sycamore-Penasquitos 230 kV Line Project

230 6/2017 .5 1. Project Scopea. new 230 kV line connecting two substations, Sycamore andPenasquitos, owned by SDG&E within SDG&E control area.2. The estimated project In-Service-Date is June 2017.3. Project Status: CAISO approved4. Facility Owner: SDG&E in conjunction with and Citizen Energy5. No Regional Impact – This is an internal system upgrade that balances power flows among transmission lines into load centers with SDG&E control area. It has no impact on neighboring electric systems. SDG&E therefore requests a waiver from “Significant Transmission Project” status.

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Artesian 230 kV Expansion 230 12/2018 .5 1. Project Scopea. Expend Artesian 69 kV substation to 230/69 kV substation adding one230/69 kV transformerb. Loop in existing Sycamore – PEN 230 kv line at Artesian 230.2. The estimated project In-Service-Date is June 2016.3. Project Status: CAISO approved4. Facility Owner: SDG&E5. No Regional Impact – This is an internal system upgrade that providesadditional source to 69 kV system around Poway area. It has no impact onneighboring electric systems. SDG&E therefore requests a waiver from“Significant Transmission Project” status.

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New 230/69 kV Transformer at Mission

230 6/2018 .25 1. Project Scope: replace two 138/69 kV transformers with one 230/69 kVtransformer at SDG&E Mission Substation2. The estimated project In-Service-Date: June 20183. Project Status: CAISO approved

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4. Facility Owner: SDG&E5. No Regional Impact – This is an internal system upgrade that mitigates localcontingency overloads and provides better local voltage control. It has noimpact on neighboring electric systems. SDG&E therefore requests a waiverfrom “Significant Transmission Project” status.

Talega Synchronous Condenser

6/2015 .25 1. Project Scope: 2x(+225/-120) MVAr synchronous condenser at TalegaSubstation.2. The estimated project In-Service-Date: June 20153. Project Status: CAISO approved4. Facility Owner: SDG&E5. No Regional Impact – This is an internal system upgrade that providesneeded voltage support. It has no impact on neighboring electric systems.SDG&E therefore requests a waiver from “Significant Transmission Project”status.

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SONGSMESA Synchronous Condenser

6/2017 .33 1. Project Scope: 2x(+225/-120) synchronous condenser at SDG&ESONGSMESA Substation/Switchyard that would be built near existing SanOnofre Substation.2. The estimated project In-Service-Date: June 2017 or 20183. Project Status: CAISO approved4. Facility Owner: SDG&E5. No Regional Impact – This is an internal system upgrade that providesneeded voltage support. It has no impact on neighboring electric systems.SDG&E therefore requests a waiver from “Significant Transmission Project”status.

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San Luis Rey Synchronous Condenser

6/2016 or 12/2016

.33 1. Project Scope: 2x(+225/-120) MVAr synchronous condenser at SDG&E SanLuis Rey Substation2. The estimated project In-Service-Date: June 20163. Project Status: CAISO approved4. Facility Owner: SDG&E5. No Regional Impact – This is an internal system upgrade that providesneeded voltage support. It has no impact on neighboring electric systems.SDG&E therefore requests a waiver from “Significant Transmission Project”status.

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Shunt Reactor at Suncrest 6/2014 .33 1. Project Scope: Install three single phase reactors at Suncrest Substation andconnect to the 500 kV bus. Each reactor will be rated 46 MVar at 317.5 kVphase to ground for a three phase total of 138 MVar at 550 kV.2. The estimated project In-Service-Date: June 20143. Project Status: Submitted for information only to CAISO as part of SDG&E’s2013 Grid Assessment plan.4. Facility Owner: SDG&E5. No Regional Impact – This is an internal system upgrade that providesneeded voltage control within SDG&E’s service territory and has no impact on

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neighboring electric systems. SDG&E therefore requests a waiver from“Significant Transmission Project” status.

Phase Shifting Transformer (PST) at Imperial Valley

6/2017 .33 1. Project Scope: Install two 400MVA phase shifting transformers in parallel in existing Imperial Vally – ROA230 230 kV line between SDG&E and CFE. The PST units will be located in Imperial Valley substation. The estimated project In-Service-Date: June 20172. Project Status: CAISO Approved.3. Facility Owner: SDG&E4. Regional Impact – This is a project proposed by CAISO and went through full CAISO open stakeholder process. CAISO Annual Transmission Plan is publically available to stakeholders. It also obtained bilateral support from CFE. SDG&E therefore requests a waiver from “Significant Transmission Project” status.

SVC at Suncrest Substation

6/2017 .33 1. Project Scope: 1x(+300/-100) MVAr SVC at SDG&E Suncrest Substation at 230 kV.2. The estimated project In-Service-Date: June 20173. Project Status: CAISO approved4. Facility Owner: 3rd party owned5. No Regional Impact – This is a system upgrade that provides needed voltage support in SDG&E control area. It has no impact on neighboring electric systems. SDG&E believes that a waiver from “Significant Transmission Project” status should be granted to this project.

Coolwater-Lugo (South of Kramer) 220 kV T/L

220 4/2018 .2 Build 63 miles of 220 kV line between SCE’s existing Coolwater 220/115 kV Substation and Lugo 500/220 kV Substation.

David Franklin626-302-0372

(SCE)

Primm 220 kV Substation 220 10/2015 .2 Construct new Primm 220 kV Substation to interconnect renewable generation projects.

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Path 42 Upgrade Project (SCE’s Scope of Work)

220 12/2014 .2 Install relays at Devers and Mirage Substations in support of IID’s Path 42 RAS, and upgrade the following transmission lines post Devers-Coachella Valley Loop-in Project:•Devers-Mirage 220 kV # 1 T/L•Devers-Mirage 220 kV # 2 T/L•SCE-owned portion of Mirage-Ramon 220 kV T/L•SCE-owned portion of Mirage-Coachella Valley 220 kV T/LIID is a co-sponsor for this project. Please contact IID for its scope of work regarding the Path 42 Upgrade Project.

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San Joaquin Cross Valley Loop Project

230 9/2014 .1 Construction of a new 18.5 mile double-circuit 230 kV transmission line that would connect Rector Substation to an existing 230 kV line from SCE’s Big Creek hydroelectric facilities in the Siera Nevada Mountains. Loop Big Creek 3-Springville 230 kV line into Rector.

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Tehachapi Renewable Transmission Project

500/230 10/2009-2/2016

.05 Change the description to – Construct the following 500 kV and 220 kV transmission facilitiesneeded to connect 4500 MW renewable generation in the Tehachapi area: Antelope-Pardee 220 kV (In-Service) WindHub 500/220 kV Substation (In-Service) Antelope-Vincent 500 kV (In-Service) Antelope – WindHub 500 kV (In-Service) Antelope – Vincent 500 kV #2 (In-Service) Whirlwind 500/220 kV sub with loop-in of Midway – Vincent #3 500 kV (In-Service) Antelope – Whirlwind 500 kV (In-Service) WindHub 500 kV, Antelope 500 kV and Vincent 500/220 kV upgrades Whirlwind – WindHub 500 kV (In-Service) Vincent – Rio Hondo 500 kV (Energized at 220 kV) Vincent – Mira Loma 500 kV Vincent – Mesa 500 kV (Energized at 220 kV)

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Alberhill 500/115 kV Substation

500/115 1/2018 .05 Develop a new 1120 MVA Alberhill 500/115 kV Substation and associated transmission lines. Construct a new 500/115 kV transmission substation (Alberhill Substation), connecting SCE’s existing Serrano-Valley 500 kV transmission line into the new Alberhill Substation with two new 500 kV line segments. Construct a new 115 kV subtransmission line and modifications to existing 115 kV subtransmission lines.

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Wildlife (formerly Jurupa) 230 kV Substation

230 7/2020 .1 Develop a 560 MVA Wilderness 220 kV Substation for Riverside. Loop the existing Mira Loma-Vista 220 kV #1 line and construct about 7 miles of double circuit T/Ls to Wilderness 220 kV that provides a method of service to a new substation that will serve the City of Riverside.

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Riverside 220 kV Interconnection

220 7/2020 .1 The project will be constructed at the same time as and adjacent to Wildlife 230 kV Substation project and will be tied to Wildlife 230 kV.

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West of Devers (WOD) Upgrade Project

230 2020 .1 Upgrade four (five with El Casco Substation loop-in) 220 kV lines on the west side of Devers 220 kV substation to 2B-1590 ACSR conductor.

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North of Magunden Long Term Plan

6/2024 .05 Master Plan to build transmission lines and substations to serve load in San Joaquin Valley area.

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Mesa 500/230 kV Substation

500/230 12/2020 .05 Develop a new 500/230 kV Substation equipped with 2 x 1120 MVA transformers.

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Lighthipe 500/230 kV Substation

500/230 Conceptual

.05 Develop a new 500/230 kV Substation equipped with 2 x 1120 MVA transformers.

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Manzana Wind 300 12/2015 .1 Interconnect a 300 MW Wind Generating Facility to SCE's Whirlwind 220 kV “


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Substation. Project is being phased in that will be completed by the operating date.

Blythe Solar Power 485 6/2015 .1 Interconnect a 485 MW Solar Generating Facility to SCE's expanded Colorado River 500/200 kV Substation.

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Palen Solar 500 6/2016 .1 Interconnect a 500 MW Solar Generating Facility to SCE's proposed Red Bluff 500/220 kV Substation.

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Abengoa Solar Project 250 4/2013 .1 Interconnect a 250 MW Solar Generating Facility to SCE's proposed Lockhart 220 kV Substation.

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Genesis-McCoy Solar Project

500 5/2016 .1 Interconnect a 500 MW Solar Generating Facility to SCE's expanded Colorado River 500/220 kV Substation.

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Desert Stateline 300 10/2015 .1 Interconnect a 300 MW Solar Generating Facility to SCE's Ivanpah 220 kV Substation.

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Silver State South 220 10/2015 .1 Interconnect a 220 MW Solar Generating Facility to a new SCE Primm 220 kV Substation.

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Pacific Wind Project 250 12/2015 .1 Interconnect a 250 MW Wind Generating Facility to SCE's Whirlwind 220 kV Substation. Project is being phased in that will be completed by the operating date.

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Alta 2012 Project 720 6/2017 .1 Interconnect a 720 MW Wind Generating Facility to SCE's Windhub 220 kV Substation. Project is being phased in that will be completed by the operating date.

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North Sky River Wind Project

297 6/2015 Interconnect a 297 MW Wind Generating Facility to SCE's Highwind 220 kV Substation. Project is being phased in that will be completed by the operating date.

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Antelope Valley Solar PV 1 310 6/2015 .1 Interconnect a 310 MW Solar Generating Facility to SCE's Whirlwind 220 kV Substation. Project is being phased in that will be completed by the operating date.

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Antelope Valley Solar PV 2 276 6/2015 .1 Interconnect a 276 MW Solar Generating Facility to SCE's Whirlwind 220 kV Substation. Project is being phased in that will be completed by the operating date.

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SCE Owned Eldorado 500/220 kV 5AA-Bank

500/220 kV 10/2015 .1 Install a new 500/220 kV AA-bank at Eldorado Substation connected to the SCE-owned Eldorado 220 kV switchyard. Desert Stateline and Silver State South triggered the need for this AA-bank.

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Whirlwind 2nd 500/220 kV 500/220 kV 9/2014 Add a second transformer bank at the existing Whirlwind Substation to add “


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Transformer capacity to deliver new renewable generation interconnecting to the 220 kV bus.

Rector SVS Expansion 220 kV 12/2014 .1 Expand Rector Static VAR System (SVS) by adding three 79.2 MVAR Shunt Capacitor Banks at Rector Bus and SVS control points to maintain minimum voltages at Rector 220 kV.

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East Kern Wind Resource Area (EKWRA) 66 kV Project

66 kV 12/2014 .1 Description: Reconfigure Antelope-Bailey 66 kV system into two separate systems. The northern system will be served radially from Windhub Substation. The southern system will remain parallel to the existing Antelope and Bailey 220 kV systems.

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Catalina Wind Project 150 6/2015 Interconnect a 150 MW Wind Generating Facility to SCE's Whirlwind 220 kV Substation via a shared generation tie line with the Pacific Wind Project. Project is being phased in that will be completed by the operating date.

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Eldorado-Lugo Series Cap Upgrade

12/2016 .1 Upgrade series capacitor and terminal equipment at Eldorado and Lugo to3800A/4000A (SN/SE)

Lugo-Mohave Series Cap Upgrade

12/2016 .1 Upgrade series capacitor and terminal equipment at Mohave to 3800A/4000A

Whirlwind 3rd 500/220 kV Transformer Bank

500/220 3/2017 .1 Add a third transformer bank at the existing Whirlwind Substation to add capacityto deliver new renewable generation interconnecting to the 220kV bus.

Victor Loop In Project 230 1/2016 .1 Loop-in the Kramer-Lugo 230 kV No. 1 and No. 2 lines into Victor Substation creating Kramer-Victor 230 kV No. 1 and No. 2 and Lugo-Victor 230 kV No. 1 and No. 2.

Rising Tree Project 200 10/2015 .1 Interconnect a 200 MW Wind Generating Facility to SCE’s Windhub 220 Substation via a generation tie line. Project is being phased in that will be completed by the operating date.

Alta Wind Q97 160 10/2016 .1 Interconnect a 160 MW Wind Generating Facility to SCE’s Whirlwind 220 Substation via a generation tie line shared with Alta Wind Q153.

Alta Wind Q153 100 10/2016 .1 Interconnect a 100 MW Wind Generating Facility to SCE’s Whirlwind 220 Substation via a generation tie line shared with Alta Wind Q97.

Camino – Mead Protection Upgrade

1/2015 .1 Installation of a communication‐aided relaying scheme to allow the second Camino– Mead line to be placed in service

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Santiago Synchronous Condenser

12/2017 .1 Install 225 MVAR synchronous condenser at Santiago SubstationProject Status: CAISO approvedFacility Owner: SCE

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Colorado River 250 5/2015 .1 New Solar generating facility of 250 MW connecting to Colorado River 220 kV bus with a planned operating date of May 1, 2015.

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Abengoa Solar Project 250 11/2014 .1 Interconnect a 250 MW Solar Generating Facility to SCE's proposed Sandlot 220kV Substation. Abengoa currently running as energy only.

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El Segundo 435 3/2018 .1 Interconnect a 435 MW Generating Facility to SCE's El Segundo Substation. “Blythe Solar Energy 485 12/2015 1 New Solar photovoltaic generating facility of 485 MW connecting to Colorado

River 220 kV bus. The project will be constructed in multiple phases. The initial synchronization date for the first 110 MW phase is expected to be December 31, 2015.

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SVP Phase Shifting Transformer Project (SVP-PST)

230 20142

400 MVA0 0 0 0 1

SVP will install a 400 MVA, 230/230 kV phase shifting transformer in the SVP SSS station, located adjacent to the PG&E Los Esteros Substation in Santa Clara County, California. The transformer will be placed in series with the SSS-NRS 230 kV circuit. A 4 ohm series reactor will also be installed between the bus sections of the SVP NRS 115 kV bus to allow for closing the currently open 115 kV bus tie. SVP is currently coordinating with Pacific Gas and Electric Company to determine what electric system improvements, if any, may be needed on its system.

Orville Plum(408)261-5470Silicon Valley

Power(SVP)


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Attachment I

Member Systems reporting significant facilities* in the 2014 Annual Progress reports to WECC from which, as of November 19, 2015, no report has been received:

1. AVA2. Lucky Corridor3. Sea Breeze Pacific4. TCP5. TransWest Express6. WCI Consultant7. Sithe Global8. LS Power9. VEA10. City of Anaheim 11. CISO12. IID13. The Nevada Hydro Company14. NCPA15. Mirant Marsh Landing16. SVP

* Projects listed as “In service” will be removed from the next issue of this log.

Attachment II

Member Systems previously reporting significant facilities* in the WECC Transmission Database from which, as of November 19, 2015, no report has been received:

1. Northwest Alberta Transmission System Reinforcement (2011-12) AESO2. 9L15 termination into Livock AESO3. Northwest Alberta Transmission System Reinforcement (2015-17) AESO4. Southeast Transmission Reinforcement (SETR) AESO5. Yellowhead Area Transmission Development – P671 AESO6. Livock 240/144 kV Connection – P834 AESO7. Fidler 312S 240/138 kV Interconnection – P936 AESO8. Northeast Fort McMurray 240 kV Loop – P791 AESO9. Halkirk 1 Wind Project – P723 AESO10. Christina Lake Area Development AESO11. Algar 240/144 kV substation AESO12. Algar-Kinosis 240 kV line AESO13. Alberta Industrial Heartland Bulk Transmission… AESO14. P116 – Foothills Area Transmission Development AESO15. C-Free Power Oven Wind-P763 AESO16. Edmonton - Calgary West DC Lline – P962 AESO17. Edmonton - Calgary East DC Lline – P961 AESO18. Bow City Power Project-P465 AESO19. Pikani Energy Corp. Wind-P773 AESO20. Vindt Willowridge – P614 AESO21. Bloodtribe Wild Turnip Hill AESO22. P635 - Suncor Hand Hills Wind Energy Project AESO23. P678 - Nexen Hand Hills Wind Project AESO24. P811 - Central East Transmission Development AESO25. P812 - Hanna Region Transmission Development AESO26. New Fidler 312S Substation – Project 1343 AESO27. Noxon Rapids Turbine Upgrades AVA28. Series Compensation on Southern Interior 500 kV lines (SISC) BCHA29. Nicola Station Reconfiguration BCHA30. Forrest Kerr IPP BCHA31. Merritt Area Transmission Project BCHA32. Revelstoke Unit 6 Installation BCHA33. North Cross Cascade 500 kV Line Project BPA34. John Day Substation – Golden Hills 200 MW (G00099-2) BPA35. Shepherds Flat Wind Phase 1 (aka North Hulburt Wind) (G0118 and G0291) BPA36. Montague I BPA37. Lower Snake Wind BPA38. Miller Ranch Wind BPA


39. Golden Hills Wind BPA40. Columbia – Larson 230 kV Line GCPUD41. King 230/138 kV Project IPC42. Pearl Transmission Substation IPC43. Midpoint T232 230/138 kV Transformer Addition Project IPC44. Lucky Corridor Transmission Project Lucky Corridor45. Mountain States Transmission Intertie Project NWMT46. Current Creek PAC47. Syracuse –Install 345/138 kV #2 Transformer PAC48. Mid Valley Substation-Replace 345-138kV, … PAC49. St. George Substation- PAC50. Pear – Sherwood 230 kV Retermination PGE51. Trojan-Horizon 230 kV line PGE52. McLoughlin 230 kV Bus Sectionalizing Breaker PGE53. Jefferson County 115 kV Upgrade Phase II PSEI54. Sea Breeze Pacific Regional Transmission System Sea Breeze55. Sea Breeze Pacific – West Coast Cable Project Sea Breeze56. Sea Breeze Pacific – Juan de Fuca Cable Project (jdF) Sea Breeze57. Southwest Intertie Transmission Project (SWIP) NV Energy58. Southern Nevada Intertie Transmission Project NV Energy59. Blackhawk 345/120 kV Substation (was Emma) NV Energy60. Fallon 230 kV Source NV Energy61. Beverly Park 230/115kV Transformer SNPD62. 230 kV Re-Termination Project TPWR63. Canyon Substation / Switching Station TCP64. Zephyr Project TCP65. Chinook Project TCP66. Dry Fork Station BEPC67. Undervoltage Load-Shedding Scheme BHP68. San Lues Valley – Calumet – Comanche Transmission Project PSC69. Miracle Mile Substation TSGT70. Lovell – Yellowtail 115-kV rebuild WAPA RMR71. Curecanti 230/115-kV 150 MVA transformer replacement WAPA RMR72. TransWest Express Project TWE73. Wyoming Colorado Intertie WCI74. Navajo Transmission Project Segment 1 Sithe Global75. Great Basin Transmission SWIP – South Project LS Power76. Great Basin Transmission SWIP – North Project LS Power77. McDonald 230/138 kV Addition NVE78. Brooks 230/138/12 kV Substation and Pecos – Brooks 230 kV Line NVE79. Sunrise 500/230 kV Transmission Substation NVE80. Robinson – Harry Allen Transmission Line #2 Project NVE81. Northwest 500/230 #2 Transformer Addition NVE82. Sunrise 500/230 kV #2 Transformer Addition NVE83. Pinal West – Pinal Central-Abel – Browning 500 & 230kV line SRP84. Desert Basin-Pinal Central 230 kV Line SRP


85. Silver King – RS-29 230kV Project SRP86. New Superior – New Oak Flat 230kV line SRP87. New Oak Flat – Silver King 230kV line SRP88. Silver King – New Pinto Valley 230 kV Line SRP89. Schrader – Abel 230 kV Line SRP90. Kyrene 500/230 kV Transformer SRP91. Rudd 230/69 kV Transformer SRP92. Schrader 230/69 kV Transformer SRP93. Resolution Copper 230 kV Line SRP94. Abel 230 kV Generation SRP95. Other Joint SRP/APS Projects SRP96. Other SRP 115/230/345 kV Transmission Project SRP97. Centennial West Clean Line HVDC Project Centennial West98. Willow 345 kV Switchyard TEP99. Tortolita – Winchester 500 kV Line TEP100. Winchester – Vail #2 and #3 345 kV Lines TEP101. Desert View – NVE Northwest 230 kV Line VEA102. Stirling Mountain – Vista VEA103. Vista – Charleston VEA104. Vista – Pahrump VEA105. Desert View 230 kV Metering Station VEA106. Stirling Mountain – Desert View 230 kV Line VEA107. San Luis – Rio Colorado Project WAPA DSW108. Transmission Infrastructure Program (TIP) WAPA DSW109. Longtin Substation Project WAPA DSW110. Canyon Power Project ANHM111. Tecnologico 230 kV SVC CFE112. El Centinela 230 kV Substation CFE113. Carranza 230 kV Substation CFE114. Valle de Puebla CFE115. Generation Projects CISO

Devers SubstationTesla SubstationEl Segundo 220 kV bus Devers-Palo Verde 500 kV line near Blythe McCall Substation Eastshore Substation Between Cottonwood and Vaca-Dixon Walnut Substation Imperial Valley Substation

116. Imperial Valley – Dixieland Substation 230 kV Interconnection IID117. Ramon Substation 230/92 kV Transformer Addition IID118. Path 42 Upgrade Project (IID’s Scope of Work) IID119. Imperial Valley Area Policy – Driven Transmission … IID120. El Centro Switching Station (ECSS) to Highline Station IID121. El Centro Switching Station (ECSS) to Fern Station IID122. Talega-Escondido/Valley-Serrano 500 kV Interconnect Project The Nevada Hydro Company123. LA Basin Re-powering Projects: Haynes Phase 2, Scattergood LDWP124. MWC Wind Generation LDWP


125. Owenyo Solar LDWP126. Planned Wind #12 LDWP127. Planned Solar #2 LDWP128. Pine Canyon Wind LDWP129. Planned Solar #3 LDWP130. Planned Solar #6 LDWP131. Owenyo Solar LDWP132. Adelanto Solar LDWP133. Planned Solar #8 LDWP134. Planned Solar #9 LDWP135. Planned Wind #11 LDWP136. Planned Wind #14 LDWP137. Planned Wind #8 LDWP138. Planned Solar #17 LDWP139. Castaic Modernization Project LDWP140. Mirant Marsh Landing Generating Station Mirant Marsh Landing141. Lodi Energy Center Project NCPA142. Gates – Gregg 230kV Line Project PG&E143. Stockton Generation Expansion Project PG&E144. Other Transmission Projects Granted Waivers PG&E145. Colusa Generating Station PG&E146. SMUD Solano Wind Phase III… PG&E147. Calpine Russell City Energy Center PG&E148. Green Ridge Wind Power Project PG&E149. Montezuma II Wind Generation Interconnection Project PG&E150. Franklin 230/69 kV Bulk Substation SMUD151. ECO 500/138 kV Substation SDGE152. 3rd 500/230 Transformer at Imperial Valley Substation SDGE153. Path 42 Upgrade Project SCE154. San Joaquin Cross Valley Loop Project SCE155. Tehachapi Renewable Transmission Project SCE156. Alberhill 500/115 kV Substation SCE157. Manzana Wind SCE158. Blythe Solar Power SCE159. Palen Solar SCE160. Abengoa Solar Project SCE161. Genesis-McCoy Solar Project SCE162. Pacific Wind Project SCE163. Alta 2012 Project SCE164. North Sky River Wind Project SCE165. Antelope Valley Solar PV 1 SCE166. Antelope Valley Solar PV 2 SCE167. SCE Owned Eldorado 500/220 kV 5AA-Bank SCE168. Whirlwind 2nd 500/220 kV Transformer SCE169. Rector SVS Expansion SCE170. East Kern Wind Resource Area (EKWRA) 66 kV Project SCE


171. Eldorado-Lugo Series Cap Upgrade SCE172. Lugo-Mohave Series Cap Upgrade SCE173. Whirlwind 3rd 500/220 kV Transformer Bank SCE174. Rising Tree Project SCE175. Alta Wind Q97 SCE176. Alta Wind Q153 SCE177. SVP Phase Shifting Transformer Project SVP


Attachment III

List of Projects Requesting A Waiver of “Significant Impact” Status

Project Name Organization1. Hassayampa‐N.Gila #2 (aka HANG2) 500 kV Project (2015) APS2. Palm Valley‐Trilby Wash 230 kV Project (2015) APS3. Sun Valley‐Trilby Wash 230 kV Project (2016) APS4. Palo Verde‐Delaney 500 kV Project (2016) APS5. Delaney‐Sun Valley 500 kV Project (2016) APS6. Ocotillo Modernization Project (2017) APS7. Mazatzal 345/69 kV Substation (2017) APS8. Sun Valley‐Morgan 500 kV Project (2018) APS9. N.Gila‐Orchard 230 kV Project (2018) APS10. Sun Valley‐Morgan 230 kV Project (2026) APS11. Scatter Wash 230/69 kV Substation (TBD) APS12. Bill Durfee (Sundance) 230 kV Substation BHP13. Raver 500/230 kV Transformer Addition Project BPA14. McNary 500/230 kV Transformer Addition Project BPA15. Second 230kV line from Front Range Plant to Nixon-Kelker (NX-KE) Line BPA16. Midpoint T232 230/138 kV Transformer Addition Project IPC17. Midpoint West Upgrade Project IPC18. Wallula – McNary 230 kV Line PAC19. Planned Generation Interconnection Projects (PACE) PAC20. Table 8b: Planned Generation Interconnection Projects (PACW) PAC21. Los Banos-4C779 #1 230kV Line Reconductoring Project PG&E22. Gregg-Herndon #2 230 kV Line Circuit Breaker PG&E23. Bellota – Warnerville 230 kV Line Reconductoring PG&E24. Glenn 230/60 kV Transformer No. 1 Replacement PG&E25. Monta Vista 230 kV Bus Upgrade PG&E26. Midway-Kern PP 230 kV #2 Line Project PG&E27. Estrella Substation PG&E28. Midway Fault Duty Mitigation Project PG&E29. Wheeler Ridge Junction Substation PG&E30. Morgan Hill Area Reinforcement Project PG&E31. Q779 PG&E32. Q829 PG&E33. Q643X PG&E34. Q877 PG&E35. Q258 PG&E36. Blue Lake/Gresham 230 kV Project PGE37. Horizon Phase II Project PGE38. Port Westward II generation PGE39. Tucannon River Wind Farm PGE40. Laporte 230 kV Substation Expansion PRPA


41. Boyd 230/115kV Transformer Addition Project PRPA42. Miguel Synchronous Condenser SDGE43. Phase Shifting Transformer (PST) at Imperial Valley SDGE44. SVC at Suncrest Substation SDGE45. Browning ‐ Rogers 230kV line SRP46. Hassayampa – Pinal West 500kV line loop into Jojoba Substation SRP47. Price Road Corridor Project SRP48. Eastern Mining Expansion Project SRP49. Santan – Rogers 230kV line Reconfiguration SRP50. Browning – Corbell 230kV line Reconfiguration SRP51. Abel – Pfister ‐ Ball 230kV line SRP52. Hassayampa – Pinal West #2 500kV line SRP53. Southwest Weld Expansion Project TSGT


Documents

2015 Annual Progress Report Summary Log · Web viewLIST OF ANNUAL PROGRESS REPORTS TO WECC - 2013 ROCKY MOUNTAIN POWER AREA CONTENTS AND REMARKS Name of Project GenMW Transmission