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Transmission to Enable Renewables Development Jerry Vaninetti, VP Western Development Denver, Colorado Trans-Elect Development Company, LLC. New Mexico Renewable Energy Transmission Authority Santa Fe, NM – October 10, 2007. Background. Trans-Elect ( www.trans-elect.com ): - PowerPoint PPT Presentation
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Transmission to Enable Renewables Development
Jerry Vaninetti, VP Western Development
Denver, ColoradoTrans-Elect Development Company, LLC
New Mexico Renewable Energy Transmission AuthoritySanta Fe, NM – October 10, 2007
Background
• Trans-Elect (www.trans-elect.com): – Independent Transmission company funded by AES– Sole focus is transmission
• Path 15 developer: 83 mile $250 MM CA project– Public/private partnership with WAPA & PG&E
• Largely focused on greenfield transmission projects to enable renewables– High Plains Express & Wyoming-Colorado Intertie
• Jerry Vaninetti, VP Western Development– Interim Executive Director of Wyoming Infrastructure Authority– Former Power Project Developer
National Transmission Grid
Power Flow Capacities between WECC Control Areas
Most paths are fully
subscribed
Western Wind Power
Map
Developable Solar
RTO Coverage
NorthwestTransmissionAssessmentCommittee
Northern Tier Transmission Group
ColoradoCoordinated
PlanningGroup
SouthwestArea
Transmission
CaliforniaSub-Regional
Planaing Group
SouthwestTransmission
ExpansionPlanning
NTACNTAC
NTTG
CCPGCCPG
SWATSWAT
CSPGCSPG
STEP
Sub-Regional Transmission Planning Groups
WECCWestern
Electricity Coordinating
Council
Columbia Grid
Activities under WestConnect umbrella
SierraSierra
Transmission Development
• Transmission Line Costs (excluding substations)– $1.5 MM/mi for 500 kV for 1,500 MW = $1,000/kW– $1.0 MM/mi for 345 kV for ~750 MW = $1,333/kW– $0.75 MM/mi for 230 kV for ~400 MW = $1,870/kW
• Transmission Development– Design, economics, permitting, routing & customers– 5-7 Year Timetable– Typical development costs: ~$10 million/project– Risky proposition not suited to traditional utilities
• State Transmission Authorities– Seeding transmission development for economic and power
generation development, focused on renewables
Line Utilization Dictates Transmission Rates(Sold as Capacity, not Energy)
$-
$5
$10
$15
$20
$25
20% 30% 40% 50% 60% 70% 80%
CAPACITY FACTOR
$4/kW-mo
$3/kW-mo
$2/kW-mo
TR
AN
SM
ISS
ION
RA
TE
($/
MW
H)
WIND-ONLY LINE MULTI-RESOURCE LINE
UTILIZATION LEVEL
• Initial Feasibility Studies• Master Plan for Local Projects
– WCI, EPTP & SunZia• Integrated AC System
– Improved connections between states/systems
– Improved Reliability• 2- 500 kV lines; 3,000 MW• 1,200 Miles• Renewables “firmed” with
other resources• Power Imports/Exports• Stakeholder Process• Project Participants
– Xcel, Tri-State, WAPA, PRPA, CSU, PNM, SRP & Trans-Elect
– WIA, NM-RETA & CEDA?• http://www.rmao.com/wtpp/HP
X_Studies.html
High Plains Express (HPX) Project
Disclaimer: this map is for study purposes only and is not meant to imply any specific project routing
Note: Conceptual Routing
Generation Capacity (MW)
Developable* Installed (‘07)
• Wyoming 257,650 319• Colorado 73,130 1,066
• New Mexico 73,040 496 • Arizona 2,310 0 TOTALS 406,130 1,881
Note: Current WECC peak demand ~ 175,000 MW WECC RPS requirement in 2020 ~ 23,000 MW
Wind Resources & Installations(from NREL & Interwest Energy Alliance)
* Class 4 +; excludes unsuitable land; 5 MW per km2
Geographic Diversity of Wind
Source: NREL wind performance projections
New Mexico40%
SE Wyoming 48%
Lamar, CO43%
0%
10%
20%
30%
40%
50%
60%
70%
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
Hours of the Day (Yearly Average)
Lamar, CO SE Wyoming
New Mexico Average (44%)
0%
10%
20%
30%
40%
50%
60%
70%
80%
JAN
FEB
MA
R
AP
R
MA
Y
JUN
JUL
AU
G
SE
P
OC
T
NO
V
DE
C
New Mexico Average (44%)
SE Wyoming
Lamar, CO
CA
PA
CIT
Y F
AC
TO
R
New Mexico Transmission
New MexicoWind &
Transmission
26Indian Reservationor Pueblo
RETA Considerations
• Congratulations – RETA Exists!• RETA’s Scope
– Project Specific: Generator Leads– State Focus: Collector Systems & Integration– Regional: Linkage to Adjoining States
• Complementary wind resources & improved reliability– 30% Energy Requirement
• Transmission Development– Assistance to generators & local utilities?– Public/Private Partnerships?– Serving Native Load vs. Import/Export Markets– Cost Recovery: PRC rate based vs. merchant markets
Wyoming-Colorado Intertie Example
TOT 3 Project$318 mm - 250 miles
750 MW - Coal & Wind
Recommended RMATS Projects
Wind