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Circuit Reliability Review Santa Clarita January 2018

Circuit Reliability Review - SCE · PDF fileInspecting and replacing overhead conductor and equipment to improve public safety ... measure our “system reliability” from this data

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Page 1: Circuit Reliability Review - SCE · PDF fileInspecting and replacing overhead conductor and equipment to improve public safety ... measure our “system reliability” from this data

Circuit Reliability Review Santa Clarita

January 2018

Page 2: Circuit Reliability Review - SCE · PDF fileInspecting and replacing overhead conductor and equipment to improve public safety ... measure our “system reliability” from this data

Building a Smarter Grid for Southern California

• Southern California Edison is developing an electric grid to support California’s transition to a clean and sustainable future that meets the needs and expectations of our customers.

• We are investing more than $13 billion in the power distribution grid over three years (2017-19). Our main investment goal is to increase power reliability through significant upgrades. The investments include:

• Upgrading cables, poles, switches and transformers

• Updating the grid so it can accommodate new technologies, such as smart inverters that will allow for the two-way flow of solar energy

• Adapting the power system to accommodate future California policy related to energy storage, electric transportation and renewable energy

• Providing enhanced automation and monitoring devices to allow us to better respond to changes on the grid

• Our investments in local communities will help ensure that customers receive safe, reliable, and affordable electricity now and in the future.

• Learn more at edison.com/innovation

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Page 3: Circuit Reliability Review - SCE · PDF fileInspecting and replacing overhead conductor and equipment to improve public safety ... measure our “system reliability” from this data

Understanding Your Reliability Report

• As your electric utility, we want you to always have power when you need it. To

get there, we constantly track and monitor electric outages across our service

territory, and we measure our “system reliability” from this data.

• The two metrics we rely on are common in the electric utility industry: the

System Average Interruption Duration Index (SAIDI) and the System Average

Interruption Frequency Index (SAIFI). Both are described in more detail on the

next page.

• Replacing and upgrading our infrastructure will help SCE maintain or improve

SAIDI and SAIFI measurements.

• This report provides historical reliability data for the circuits that serve your

jurisdiction and our proposed infrastructure upgrades for the current year.

• To view other reliability reports, visit sce.com>Outage Center>Maintaining

Reliable Service

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Page 4: Circuit Reliability Review - SCE · PDF fileInspecting and replacing overhead conductor and equipment to improve public safety ... measure our “system reliability” from this data

Reliability Metrics

MOMENTARY OUTAGES:

OUTAGES LASTING 5 MINUTES OR LESS

MAIFI:

o The number of times the average customer is interrupted by Momentary outages each year.

SUSTAINED OUTAGES:

OUTAGES LASTING LONGER THAN 5 MINUTES

SAIFI:

o The number of times the average customer is interrupted by Sustained outages each year.

SAIDI:

o The cumulative amount of time the average customer is interrupted by Sustained outages each year.

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Page 5: Circuit Reliability Review - SCE · PDF fileInspecting and replacing overhead conductor and equipment to improve public safety ... measure our “system reliability” from this data

CityList1Cities in the VALENCIA DistrictVAL VERDE PARK

AGUA DULCE

BOUQUET CANYON

CANYON COUNTRY

CASTAIC

ESCONDIDO CANYON

FILLMORE

ACTON

TICK CANYON

UNIVERSAL CITY

LOPEZ CANYON

MINT CANYON

NEWHALL

NORTH FORK SADDLE

FOREST PARK

FRIENDLY VALLEY

HASKELL CANYON

HASLEY CANYON

SLEEPY VALLEY

SOLEDAD CANYON

SOLEMINT

VALENCIA

VASQUEZ CANYON

WARM SPRINGS CANYON

PLACERITA CANYON

SAN FERNANDO

SAN FRANCISQUITO CANYON

SAND CANYON

SANTA CLARITA

SAUGUS

NORTH OAKS

PACOIMA CANYON

PICO CANYON

PINE MOUNTAIN CLUB

PINON PINES

PIRU

LAKE OF THE WOODS

LITTLE TUJUNGA

HONBY

KAGEL CANYON

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*”Exclusions” are days which utilities are allowed to remove from their metrics because the outages on those days were caused by a severe acts of nature.**In the columns showing “Rank,” lower numbers indicate poorer performance.

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Page 7: Circuit Reliability Review - SCE · PDF fileInspecting and replacing overhead conductor and equipment to improve public safety ... measure our “system reliability” from this data

CircuitList1Overview of Santa ClaritaThere are 55 circuits that serve Santa Clarita 1

Circuit Type Customers Circuit Type Customers Circuit Type Customers Circuit Type Customers

ANACONDA(16KV) 1,693 MAXIMUS(16KV) 2,773 - -

ARLENE(16KV) 1,563 MCBEAN(16KV) 2,880 - -

BERMITE(16KV) 664 MENTRY(16KV) 2,317 - -

BLACKBIRD(16KV) 1,466 MINT CANYON(16KV) 1,213 - -

BOA(16KV) 1,697 MOCCASIN(16KV) 1,428 - -

BOUQUET(16KV) 740 MORRIE(16KV) 283 - -

BUCKHORN(16KV) 2,443 NEARGATE(16KV) 1,626 - -

CAESAR(16KV) 1,970 NERO(16KV) 2,069 - -

CALGROVE(16KV) 1,894 NIGHTHAWK(16KV) 342 - -

CENTURION(16KV) 2,149 ORION(16KV) 3,153 - -

CHARIOT(16KV) 2,620 PLACERITA(16KV) 1,369 - -

COBRA(16KV) 1,745 POWELL(16KV) 2,243 - -

CONSTANTINE(16KV) 2,092 PYTHON(16KV) 1,442 - -

COPPERHEAD(16KV) 800 RACER(16KV) 722 - -

COTTONMOUTH(16KV) 3,400 RATTLER(16KV) 3,082 - -

CRABTREE(16KV) 1,530 RINER(16KV) 1,177 - -

CROSS(16KV) 1,331 ROMANUS(16KV) 2,109 - -

DEWITT(16KV) 1,185 SAND CANYON(16KV) 2,305 - -

DIAMONDBACK(16KV) 2,139 STARFIGHTER(16KV) 3,566 - -

DRY CANYON(16KV) 1,710 TIPS(16KV) 637 - -

ELECTRA(16KV) 282 TOGA(16KV) 2,118 - -

GAVIN(16KV) 1,204 VAL VERDE(16KV) 128 - -

GUITAR(16KV) 243 VASQUEZ(16KV) 2,225 - -

HILLFIELD(16KV) 2,059 WILDWOOD(16KV) 2,182 - -

JBSHERMAN(16KV) 2,718 WILEY(16KV) 2,487 - -

JULIUS(16KV) 3,078 - - -

LYONS(16KV) 3,580 - - -

MAGIC(16KV) 172 - - -

MAMBA(16KV) 2,148 - - -

MARCUS(16KV) 1,399 - - -

Grand Total 97,590

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Page 8: Circuit Reliability Review - SCE · PDF fileInspecting and replacing overhead conductor and equipment to improve public safety ... measure our “system reliability” from this data

BarChart

SCE SYSTEMWIDE

**Data is as of 02/20/2018, data

can be slightly different due to

outage data validation process

Santa Clarita

Reliability History of Circuits Serving Santa Clarita (No Exclusions)

**“Exclusions” are days which

utilities are allowed to

remove from their metrics

because the outages on

those days were caused by

acts of nature.

80.767.6

106.9

146.7

112.1 114.8

134.5 139.7

0.0

20.0

40.0

60.0

80.0

100.0

120.0

140.0

160.0

2014 2015 2016 2017

SAIDI

(average

minutes of

sustained

interruptions)

0.50.6

1.0

1.2

1.0 0.9

1.11.2

0.0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

SAIFI

(average

frequency of

sustained

interruptions)

0.80.9

1.5

1.21.4 1.4

1.61.8

0.0

0.5

1.0

1.5

2.0

MAIFI

(average

frequency of

momentary

interruptions)

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Page 9: Circuit Reliability Review - SCE · PDF fileInspecting and replacing overhead conductor and equipment to improve public safety ... measure our “system reliability” from this data

SAIDIChart

SAIDI = the cumulative amount of time the average customer is interrupted by “sustained” outages each year.

Causes of Repair Outages in Santa Clarita

2017

3rd Party

7.4%

Equipment Failure

52.1%Operation

10.3%

Other

16.9%

Vegetation

/Animal

1.4%

Weather /Fire

/Earthquake

12.0%

Contributions to SAIDI by Outage Cause

3rd Party

Equipment Failure

Operation

Other

Vegetation /Animal

Weather /Fire /Earthquake

Equipment Failure

e.g., in-service failure of transformer, switch, or conductors

Vegetation/Animale.g., tree branch, rodent, or bird

causing a short circuit between conductors

Othere.g., patrolled but no cause found

Operationse.g., urgent maintenance w/o 3-day

notice 3rd Party

e.g., balloon, car hit pole, dig-in

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Page 10: Circuit Reliability Review - SCE · PDF fileInspecting and replacing overhead conductor and equipment to improve public safety ... measure our “system reliability” from this data

SAIFIChart

SAIFI = the number of times the average customer is interrupted by “sustained” outages each year

Causes of Repair Outages in Santa Clarita

2017

3rd Party

10.8%

Equipment Failure

42.8%

Operation

15.8%

Other

15.2%

Vegetation /Animal

5.2%

Weather /Fire

/Earthquake

10.2%

Contributions to SAIFI by Outage Cause

3rd Party

Equipment Failure

Operation

Other

Vegetation /Animal

Weather /Fire /Earthquake

Equipment Failure

e.g., in-service failure of transformer, switch, or conductors

Vegetation/Animale.g., tree branch, rodent, or bird

causing a short circuit between conductors

Othere.g., patrolled but no cause found

Operationse.g., urgent maintenance w/o 3-day

notice 3rd Party

e.g., balloon, car hit pole, dig-in

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Back-up Slides

Reliability Histories of Circuits Serving Santa Clarita

Updated through Dec 2017

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CitySummary

SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI

80.7 0.5 0.8 67.6 0.6 0.9 106.9 1.0 1.5 11.9 0.1 0.3 28.4 0.2 0.3 20.7 0.2 0.3 85.7 0.6 0.4 146.7 1.2 1.2

3rd Party 1% 1% 13% 9% 8% 12% 11% 9% 3% 5% 11% 1% 15% 18% 41% 9% 8% 4% 5% 9% 19% 7% 11% 16%

Equipment Failure 72% 67% 22% 58% 60% 34% 51% 43% 7% 69% 36% 18% 75% 63% 29% 78% 75% 31% 36% 28% 25% 52% 43% 25%

Operation 4% 7% 5% 8% 6% 7% 10% 16% 6% 14% 7% - 7% 10% - 8% 15% 2% 11% 20% 0% 10% 16% 1%

Other 0% 0% 18% 5% 6% 16% 9% 13% 15% 0% 0% 46% 1% 0% 21% 5% 3% 12% 27% 27% 33% 17% 15% 29%

Vegetation/Animal 4% 5% 36% 1% 5% 13% 7% 14% 67% 1% 13% 1% 2% 7% 9% - - 13% 2% 4% 23% 1% 5% 12%

Weather/Fire/Earthquake 19% 20% 6% 19% 15% 17% 13% 5% 3% 11% 33% 34% 1% 2% - 0% 0% 38% 19% 11% - 12% 10% 17%

SCE SYSTEMWIDE 112.1 1.0 1.4 114.8 0.9 1.4 134.5 1.1 1.6 42.6 0.3 0.5 23.6 0.2 0.4 29.2 0.2 0.4 44.3 0.4 0.5 139.7 1.2 1.8

Average Reliability of 55 Circuits Serving Santa Clarita

4th Qtr 2017 20172014 2015 2016 1st Qtr 2017 2nd Qtr 2017 3rd Qtr 2017

55 Circuits Serving Santa Clarita -- Total

Customers: 97,590

Notes:

No outages are excluded from the metrics.

Outage Causes: Other: e.g., patrolled but no cause could be foundOperations: e.g., urgent maintenance w/o 3-day notice to customers3rd Party: e.g., balloons, car hit pole, dig-inVegetation/Animal: e.g., tree branch, rodent, or bird causing short circuit across conductors

SAIDI (minutes) = the cumulative amount of time the average customer is interrupted by “sustained” (longer than 5 minutes) outages.

SAIFI (interruptions) = the number of times the average customer is interrupted by “sustained” outages.

MAIFI (interruptions) = the number of times the average customer is interrupted by “momentary " (lasting 5 minutes or less) outages.

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CircuitHistory1

SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI

ANACONDA(16KV) - Customers: 1,693 15.3 0.0 1.0 6.1 0.0 - 21.5 0.1 1.0 33.5 0.2 - 49.9 0.1 - 25.4 0.1 0.1 - - - 108.8 0.4 0.1

3rd Party - - - - - - - - - - - - - - - - - - - - - - - -

Equipment Failure 100% 100% 100% 100% 100% - 100% 100% - - - - 86% 71% - - - - - - - 39% 22% -

Operation - - - - - - - - - 100% 100% - 14% 29% - - - 100% - - - 37% 55% 100%

Other - - - - - - - - - - - - - - - 100% 100% - - - - 23% 23% -

Vegetation/Animal - - - - - - - - 100% - - - - - - - - - - - - - - -

Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - - - - - - -

ARLENE(16KV) - Customers: 1,563 46.9 0.3 0.1 61.2 0.2 0.0 34.0 0.7 4.0 - - - - - - 34.0 0.1 1.0 3.7 0.0 - 37.7 0.2 1.0

3rd Party - - - - - - - - - - - - - - - - - - - - - - - -

Equipment Failure 17% 12% 41% 100% 100% 100% 25% 7% - - - - - - - 66% 72% - 100% 100% - 69% 76% -

Operation 82% 87% 59% - - - 75% 93% - - - - - - - - - - - - - - - -

Other - - - - - - - - - - - - - - - 28% 25% - - - - 25% 21% -

Vegetation/Animal 1% 1% - - - - - - 100% - - - - - - - - - - - - - - -

Weather/Fire/Earthquake - - - - - - - - - - - - - - - 6% 3% 100% - - - 6% 3% 100%

BERMITE(16KV) - Customers: 664 17.1 0.0 - 9.2 0.1 2.0 94.5 1.7 1.0 92.6 1.0 - 6.4 0.0 1.0 - - - - - - 98.9 1.0 1.0

3rd Party - - - - - - - - - - - - 77% 25% - - - - - - - 5% 1% -

Equipment Failure 100% 100% - 73% 42% 50% - - - 100% 100% - - - - - - - - - - 94% 98% -

Operation - - - - - - - - - - - - - - - - - - - - - - - -

Other - - - 27% 58% - 93% 79% - - - - - - - - - - - - - - - -

Vegetation/Animal - - - - - 50% 7% 21% 100% - - - 23% 75% 100% - - - - - - 2% 2% 100%

Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - - - - - - -

BLACKBIRD(16KV) - Customers: 1,466 - - - 6.7 0.1 - 18.3 0.1 1.0 2.9 0.0 - 2.1 0.0 - - - - 356.1 3.6 2.5 361.0 3.6 2.5

3rd Party - - - - - - - - - - - - - - - - - - - - - - - -

Equipment Failure - - - - - - - - - - - - - - - - - - 53% 22% 50% 52% 22% 50%

Operation - - - 100% 100% - 100% 100% - 100% 100% - 100% 100% - - - - 15% 28% - 16% 29% -

Other - - - - - - - - - - - - - - - - - - 32% 50% 9% 31% 50% 9%

Vegetation/Animal - - - - - - - - 100% - - - - - - - - - - - 41% - - 41%

Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - - - - - - -

Reliability Histories for Individual Circuits Serving Santa Clarita - 1 of 14

2014 2015 2016 1st Qtr 2017 2nd Qtr 2017 3rd Qtr 2017 4th Qtr 2017 2017

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CircuitHistory2

SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI

BOA(16KV) - Customers: 1,697 17.9 0.1 - 2.4 0.0 - 19.4 0.1 1.0 - - - - - 1.0 - - - 0.6 0.0 0.0 0.6 0.0 1.0

3rd Party 96% 43% - - - - - - - - - - - - - - - - 100% 100% 100% 100% 100% 0%

Equipment Failure - - - 100% 100% - 100% 100% - - - - - - - - - - - - - - - -

Operation 4% 57% - - - - - - - - - - - - - - - - - - - - - -

Other - - - - - - - - - - - - - - - - - - - - - - - -

Vegetation/Animal - - - - - - - - 100% - - - - - 100% - - - - - - - - 100%

Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - - - - - - -

BOUQUET(16KV) - Customers: 740 108.9 1.3 3.0 30.8 0.8 1.3 267.2 2.1 5.4 - - - 0.2 0.0 - 10.2 0.1 1.0 61.8 1.0 - 72.3 1.1 1.0

3rd Party - - - - - - 68% 52% - - - - - - - - - 100% - - - - - 100%

Equipment Failure 27% 8% 1% 7% 1% 71% 10% 24% 11% - - - 58% 50% - - - - - - - 0% 0% -

Operation - - - 85% 97% 20% - - - - - - 42% 50% - 100% 100% - - - - 14% 11% -

Other 5% 4% - - - 9% 22% 24% 11% - - - - - - - - - - - - - - -

Vegetation/Animal 0% 0% 66% - - - - - 79% - - - - - - - - - - - - - - -

Weather/Fire/Earthquake 68% 89% 33% 8% 2% - - - - - - - - - - - - - 100% 100% - 85% 89% -

BUCKHORN(16KV) - Customers: 2,443 39.1 0.1 1.1 250.9 2.0 2.0 27.0 0.1 1.1 - - 1.1 197.1 1.3 0.0 19.1 0.3 1.1 - - 1.1 216.2 1.6 3.2

3rd Party 2% 2% - 1% 0% 51% - - - - - - - - - - - - - - - - - -

Equipment Failure 98% 97% - 8% 2% - 29% 46% - - - - 98% 97% - 47% 12% - - - - 93% 83% -

Operation 0% 1% - 1% 1% - 2% 4% - - - - - - - 48% 86% - - - - 4% 14% -

Other - - 97% 0% 0% 2% - - 100% - - 100% - - 100% 5% 1% 7% - - 7% 0% 0% 38%

Vegetation/Animal - - - - - - 5% 3% - - - - - - - - - 93% - - 93% - - 62%

Weather/Fire/Earthquake - - 3% 90% 97% 47% 65% 46% - - - - 2% 3% - - - - - - - 2% 3% -

CAESAR(16KV) - Customers: 1,970 142.3 0.8 1.6 75.8 0.7 0.3 121.8 1.6 0.4 - - - - - - - - - 60.5 1.0 - 60.5 1.0 -

3rd Party 1% 2% 63% 100% 100% 100% - - - - - - - - - - - - 100% 100% - 100% 100% -

Equipment Failure 99% 98% 37% - - - 86% 97% 100% - - - - - - - - - - - - - - -

Operation - - - - - - 2% 1% - - - - - - - - - - - - - - - -

Other - - - - - - 12% 2% - - - - - - - - - - - - - - - -

Vegetation/Animal - - - - - - - - - - - - - - - - - - - - - - - -

Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - - - - - - -

Reliability Histories for Individual Circuits Serving Santa Clarita - 2 of 14

2014 2015 2016 1st Qtr 2017 2nd Qtr 2017 3rd Qtr 2017 4th Qtr 2017 2017

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CircuitHistory3

SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI

CALGROVE(16KV) - Customers: 1,894 94.7 1.4 1.0 111.8 0.5 3.3 7.8 0.1 1.0 18.8 0.1 - 1.2 0.0 0.0 - - - - - 1.0 20.0 0.1 1.0

3rd Party - - - 6% 3% - - - - - - - - - - - - - - - 100% - - 98%

Equipment Failure 6% 1% - 55% 10% 0% 81% 98% 1% 100% 100% - 100% 100% 50% - - - - - - 100% 100% 1%

Operation 7% 30% 4% 18% 30% 31% - - - - - - - - - - - - - - - - - -

Other - - 1% 22% 58% 69% 19% 2% - - - - - - 50% - - - - - - - - 1%

Vegetation/Animal - - 95% - - - - - 99% - - - - - - - - - - - - - - -

Weather/Fire/Earthquake 87% 69% - - - - - - - - - - - - - - - - - - - - - -

CENTURION(16KV) - Customers: 2,149 118.0 0.5 0.5 111.7 0.5 1.7 44.3 1.6 0.0 - - - - - - 45.8 0.5 1.0 - - - 45.8 0.5 1.0

3rd Party - - - - - - - - - - - - - - - - - - - - - - - -

Equipment Failure 99% 96% 100% 94% 93% 100% 73% 6% 100% - - - - - - 100% 100% 100% - - - 100% 100% 100%

Operation 1% 4% - 6% 7% - 27% 94% - - - - - - - - - - - - - - - -

Other - - - - - - - - - - - - - - - - - - - - - - - -

Vegetation/Animal - - - - - - - - - - - - - - - - - - - - - - - -

Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - - - - - - -

CHARIOT(16KV) - Customers: 2,620 182.8 1.8 1.0 7.2 0.1 1.1 133.6 0.4 0.7 15.1 0.1 - - - - 139.6 1.1 - - - 1.0 154.7 1.2 1.0

3rd Party - - - 85% 92% - - - - - - - - - - - - - - - - - - -

Equipment Failure 100% 100% 100% - - - - - - - - - - - - 99% 93% - - - 100% 90% 87% 100%

Operation - - - 15% 8% 5% 9% 11% 6% 100% 100% - - - - 1% 7% - - - - 10% 13% -

Other - - - - - - - - - - - - - - - - - - - - - - - -

Vegetation/Animal - - - - - - - - - - - - - - - - - - - - - - - -

Weather/Fire/Earthquake - - - - - 95% 91% 89% 94% - - - - - - - - - - - - - - -

COBRA(16KV) - Customers: 1,745 2.6 0.0 - 0.1 0.0 - 3.7 0.2 1.8 - - - - - - 5.1 0.3 1.0 - - - 5.1 0.3 1.0

3rd Party - - - - - - - - - - - - - - - - - - - - - - - -

Equipment Failure - - - - - - - - - - - - - - - 34% 2% - - - - 34% 2% -

Operation 100% 100% - 100% 100% - - - - - - - - - - 66% 98% - - - - 66% 98% -

Other - - - - - - 100% 100% 44% - - - - - - - - - - - - - - -

Vegetation/Animal - - - - - - - - 56% - - - - - - - - - - - - - - -

Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - 100% - - - - - 100%

Reliability Histories for Individual Circuits Serving Santa Clarita - 3 of 14

2014 2015 2016 1st Qtr 2017 2nd Qtr 2017 3rd Qtr 2017 4th Qtr 2017 2017

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CircuitHistory4

SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI

CONSTANTINE(16KV) - Customers: 2,092 18.0 0.1 - 15.5 0.1 - 19.6 0.1 - - - - 4.6 0.0 - 3.1 0.0 0.1 35.5 0.4 0.7 43.2 0.4 0.8

3rd Party - - - - - - - - - - - - - - - - - - - - - - - -

Equipment Failure 97% 78% - - - - 69% 57% - - - - 100% 100% - - - - 97% 98% 100% 90% 94% 87%

Operation 3% 22% - 100% 100% - 31% 43% - - - - - - - 100% 100% 100% 3% 2% - 10% 6% 13%

Other - - - - - - - - - - - - - - - - - - - - - - - -

Vegetation/Animal - - - - - - - - - - - - - - - - - - - - - - - -

Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - - - - - - -

COPPERHEAD(16KV) - Customers: 800 656.4 3.2 2.2 - - - 401.0 1.6 1.6 - - - - - - - - - 57.2 1.0 - 57.2 1.0 -

3rd Party 1% 2% 45% - - - - - - - - - - - - - - - 100% 100% - 100% 100% -

Equipment Failure 90% 66% 55% - - - 98% 74% - - - - - - - - - - - - - - - -

Operation 1% 9% - - - - - - - - - - - - - - - - - - - - - -

Other - - - - - - 2% 26% 37% - - - - - - - - - - - - - - -

Vegetation/Animal - - - - - - - - 63% - - - - - - - - - - - - - - -

Weather/Fire/Earthquake 8% 23% - - - - - - - - - - - - - - - - - - - - - -

COTTONMOUTH(16KV) - Customers: 3,400 190.5 1.1 - 23.0 0.1 - 187.4 0.9 1.5 - - - 12.1 0.1 - 152.7 2.1 - 27.0 0.2 - 191.8 2.4 -

3rd Party - - - - - - - - - - - - - - - - - - - - - - - -

Equipment Failure 99% 99% - 37% 39% - 95% 93% 33% - - - 25% 45% - 81% 88% - 100% 100% - 80% 87% -

Operation 1% 1% - 63% 61% - 4% 5% - - - - 75% 55% - 19% 12% - - - - 20% 13% -

Other - - - - - - 1% 2% - - - - - - - - - - - - - - - -

Vegetation/Animal - - - - - - - - 67% - - - - - - - - - - - - - - -

Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - - - - - - -

CRABTREE(16KV) - Customers: 1,530 1.4 0.0 2.0 17.6 0.1 1.0 271.7 3.1 2.0 - - - 24.3 1.1 - - - - 597.7 2.9 1.1 621.9 4.0 1.1

3rd Party - - 50% - - - 61% 63% - - - - - - - - - - - - - - - -

Equipment Failure 100% 100% - - - - 0% 0% 50% - - - - - - - - - 45% 31% 100% 44% 22% 100%

Operation - - - 100% 100% - 4% 2% - - - - - - - - - - 17% 35% - 17% 25% -

Other - - 50% - - - 35% 32% - - - - - - - - - - - - - - - -

Vegetation/Animal - - - - - 100% 0% 3% 50% - - - 100% 100% - - - - - - - 4% 28% -

Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - 37% 35% - 36% 25% -

Reliability Histories for Individual Circuits Serving Santa Clarita - 4 of 14

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CircuitHistory5

SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI

CROSS(16KV) - Customers: 1,331 32.0 0.1 1.0 38.0 0.2 - 6.0 0.1 1.0 - - - - - - - - - 16.8 0.2 0.0 16.8 0.2 0.0

3rd Party - - - - - - - - - - - - - - - - - - - - - - - -

Equipment Failure 100% 100% 3% 99% 86% - 100% 100% - - - - - - - - - - 79% 28% - 79% 28% -

Operation - - - 1% 14% - - - - - - - - - - - - - 21% 72% 100% 21% 72% 100%

Other - - - - - - - - - - - - - - - - - - - - - - - -

Vegetation/Animal - - 97% - - - - - 100% - - - - - - - - - - - - - - -

Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - - - - - - -

DEWITT(16KV) - Customers: 1,185 15.9 0.1 1.0 90.3 1.3 0.6 128.8 0.4 0.9 31.3 0.1 0.0 9.3 0.0 0.0 21.0 0.1 - - - - 61.6 0.3 0.1

3rd Party - - - - - - - - - - - - - - - - - - - - - - - -

Equipment Failure 99% 92% - 99% 96% 100% 98% 95% - 87% 63% 100% 100% 100% 100% 99% 81% - - - - 93% 76% 100%

Operation 1% 8% - 1% 4% - 2% 5% - 13% 37% - - - - 1% 19% - - - - 7% 24% -

Other - - - - - - - - - - - - - - - - - - - - - - - -

Vegetation/Animal - - 100% - - - - - 100% - - - - - - - - - - - - - - -

Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - - - - - - -

DIAMONDBACK(16KV) - Customers: 2,139 0.3 0.0 - - - - 10.2 0.1 1.0 - - - 29.4 0.2 - 2.7 0.0 - 0.8 0.0 - 32.8 0.2 -

3rd Party - - - - - - - - - - - - - - - - - - - - - - - -

Equipment Failure - - - - - - - - - - - - 64% 56% - 100% 100% - - - - 65% 63% -

Operation 100% 100% - - - - 100% 100% - - - - 36% 44% - - - - 100% 100% - 35% 37% -

Other - - - - - - - - - - - - - - - - - - - - - - - -

Vegetation/Animal - - - - - - - - 100% - - - - - - - - - - - - - - -

Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - - - - - - -

DRY CANYON(16KV) - Customers: 1,710 288.8 1.9 0.1 0.3 0.0 1.0 144.8 2.1 1.0 - - - 16.1 0.0 - - - - 34.6 1.0 - 50.7 1.0 -

3rd Party - - - - - - - - - - - - - - - - - - - - - - - -

Equipment Failure 100% 100% 100% 100% 100% - 15% 4% - - - - 100% 100% - - - - 100% 100% - 100% 100% -

Operation - - - - - - - - - - - - - - - - - - - - - - - -

Other - - - - - - 80% 47% - - - - - - - - - - - - - - - -

Vegetation/Animal - - - - - 100% 6% 49% 100% - - - - - - - - - - - - - - -

Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - - - - - - -

Reliability Histories for Individual Circuits Serving Santa Clarita - 5 of 14

2014 2015 2016 1st Qtr 2017 2nd Qtr 2017 3rd Qtr 2017 4th Qtr 2017 2017

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Page 20: Circuit Reliability Review - SCE · PDF fileInspecting and replacing overhead conductor and equipment to improve public safety ... measure our “system reliability” from this data

CircuitHistory6

SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI

ELECTRA(16KV) - Customers: 282 41.8 0.3 1.7 - - - - - 1.0 - - - - - 1.0 - - 1.0 271.9 1.2 0.8 271.9 1.2 2.8

3rd Party - - - - - - - - - - - - - - - - - - - - - - - -

Equipment Failure 62% 50% 49% - - - - - - - - - - - - - - - - - - - - -

Operation - - - - - - - - - - - - - - - - - 100% - - - - - 35%

Other 38% 50% 51% - - - - - - - - - - - 100% - - - - - - - - 35%

Vegetation/Animal - - - - - - - - 100% - - - - - - - - - 1% 14% 100% 1% 14% 30%

Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - 99% 86% - 99% 86% -

GAVIN(16KV) - Customers: 1,204 - - 1.0 21.0 0.1 - 47.0 0.2 1.1 - - - 2.2 0.2 - - - - - - - 2.2 0.2 -

3rd Party - - - - - - - - - - - - - - - - - - - - - - - -

Equipment Failure - - - - - - 70% 57% - - - - - - - - - - - - - - - -

Operation - - - 100% 100% - 30% 43% - - - - 100% 100% - - - - - - - 100% 100% -

Other - - - - - - - - - - - - - - - - - - - - - - - -

Vegetation/Animal - - 100% - - - - - 100% - - - - - - - - - - - - - - -

Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - - - - - - -

GUITAR(16KV) - Customers: 243 213.6 3.1 2.4 193.9 2.3 8.5 39.2 0.3 3.1 - - 1.2 7.9 0.1 - 30.7 1.0 0.2 510.2 1.6 1.0 548.8 2.7 2.4

3rd Party 23% 27% 6% - - 4% - - - - - - 100% 100% - - - - - - - 1% 4% -

Equipment Failure 31% 11% 42% 11% 2% - 15% 6% - - - 15% - - - 100% 100% - 7% 1% - 12% 39% 8%

Operation 0% 1% - 2% 1% - 57% 35% - - - - - - - - - - - - - - - -

Other - - 52% 13% 11% 96% - - 67% - - 85% - - - - - - - - - - - 43%

Vegetation/Animal 44% 60% - - - - 21% 4% 33% - - - - - - - - 100% - - 100% - - 50%

Weather/Fire/Earthquake 1% 0% - 74% 86% - 6% 54% - - - - - - - - - - 93% 99% - 87% 57% -

HILLFIELD(16KV) - Customers: 2,059 3.8 0.0 - 59.6 1.0 1.0 6.6 0.0 5.0 - - 1.0 11.6 0.0 - - - 2.0 408.8 1.8 - 420.4 1.9 3.0

3rd Party - - - - - - - - - - - - - - - - - - - - - - - -

Equipment Failure - - - 100% 100% 4% 30% 24% - - - - - - - - - - - - - - - -

Operation 100% 100% - 0% 0% 96% 70% 76% - - - - 52% 92% - - - - - - - 1% 2% -

Other - - - - - - - - 20% - - 100% 48% 8% - - - - - - - 1% 0% 34%

Vegetation/Animal - - - - - - - - 80% - - - - - - - - - - - - - - -

Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - 100% 100% 100% - 97% 98% 66%

Reliability Histories for Individual Circuits Serving Santa Clarita - 6 of 14

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Page 21: Circuit Reliability Review - SCE · PDF fileInspecting and replacing overhead conductor and equipment to improve public safety ... measure our “system reliability” from this data

CircuitHistory7

SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI

JBSHERMAN(16KV) - Customers: 2,718 159.3 1.1 0.1 210.3 1.4 0.9 196.8 2.3 1.3 - - - 170.2 1.0 1.3 - - - - - - 170.2 1.0 1.3

3rd Party - - - - - - - - - - - - - - 77% - - - - - - - - 77%

Equipment Failure 97% 91% 100% 63% 51% 67% 94% 57% 23% - - - 97% 97% 23% - - - - - - 97% 97% 23%

Operation 3% 9% - - - - 2% 1% - - - - 3% 3% - - - - - - - 3% 3% -

Other - - - 37% 49% 33% - - - - - - - - - - - - - - - - - -

Vegetation/Animal - - - - - - 4% 43% 77% - - - - - - - - - - - - - - -

Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - - - - - - -

JULIUS(16KV) - Customers: 3,078 10.3 0.0 1.0 28.7 0.1 - 4.5 0.1 - - - - 0.5 0.0 - - - - 354.7 2.4 - 355.3 2.4 -

3rd Party - - 100% - - - - - - - - - - - - - - - - - - - - -

Equipment Failure - - - 100% 100% - 10% 3% - - - - - - - - - - - - - - - -

Operation 100% 100% - - - - 90% 97% - - - - 100% 100% - - - - 4% 16% - 4% 16% -

Other - - - - - - - - - - - - - - - - - - 96% 84% - 96% 84% -

Vegetation/Animal - - - - - - - - - - - - - - - - - - - - - - - -

Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - - - - - - -

LYONS(16KV) - Customers: 3,580 0.7 0.0 2.0 10.2 0.1 2.1 25.9 1.1 2.0 6.4 0.8 1.2 89.7 1.1 2.2 2.4 0.0 - 473.8 2.1 1.0 572.2 4.1 4.3

3rd Party - - 50% - - 50% - - - - - - 26% 75% 100% - - - 2% 6% 100% 6% 23% 73%

Equipment Failure 100% 100% - 14% 11% - 49% 5% - - - - 74% 25% - 100% 100% - 98% 94% - 93% 56% -

Operation - - - 79% 87% - 51% 95% 50% - - - - - - - - - - - - - - -

Other - - - - - - - - - - - - - - - - - - - - - - - -

Vegetation/Animal - - 50% - - - - - 50% - - - - - - - - - - - - - - -

Weather/Fire/Earthquake - - - 7% 2% 50% - - - 100% 100% 100% - - - - - - - - - 1% 20% 27%

MAGIC(16KV) - Customers: 172 - - - 5.4 0.9 - 286.7 2.0 3.0 423.0 2.5 0.7 - - - - - - - - - 423.0 2.5 0.7

3rd Party - - - - - - - - - - - - - - - - - - - - - - - -

Equipment Failure - - - - - - 97% 51% 33% 100% 100% 100% - - - - - - - - - 100% 100% 100%

Operation - - - - - - - - - - - - - - - - - - - - - - - -

Other - - - 100% 100% - - - 33% - - - - - - - - - - - - - - -

Vegetation/Animal - - - - - - 3% 49% 34% - - - - - - - - - - - - - - -

Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - - - - - - -

Reliability Histories for Individual Circuits Serving Santa Clarita - 7 of 14

2014 2015 2016 1st Qtr 2017 2nd Qtr 2017 3rd Qtr 2017 4th Qtr 2017 2017

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Page 22: Circuit Reliability Review - SCE · PDF fileInspecting and replacing overhead conductor and equipment to improve public safety ... measure our “system reliability” from this data

CircuitHistory8

SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI

MAMBA(16KV) - Customers: 2,148 73.5 1.0 2.1 5.8 0.0 1.2 136.0 3.4 2.0 - - 1.0 4.3 0.0 1.0 - - - 78.3 1.0 1.0 82.6 1.1 3.0

3rd Party - - - 90% 95% - 1% 1% - - - - - - - - - - 100% 96% 100% 94% 92% 33%

Equipment Failure 92% 96% - 10% 5% - 77% 74% 31% - - - 84% 22% - - - - - - - 4% 1% -

Operation 0% 0% 98% - - - - - - - - - 16% 78% - - - - 0% 4% - 1% 7% -

Other - - - - - 100% 15% 24% 15% - - 100% - - 100% - - - - - - - - 67%

Vegetation/Animal - - - - - - - - 54% - - - - - - - - - - - - - - -

Weather/Fire/Earthquake 8% 4% 2% - - - 6% 1% - - - - - - - - - - - - - - - -

MARCUS(16KV) - Customers: 1,399 136.7 1.2 1.0 150.9 0.8 1.3 12.2 0.0 - - - - 24.7 0.1 - 0.2 0.0 - 5.0 0.0 - 29.9 0.1 -

3rd Party - - - - - - - - - - - - - - - - - - - - - - - -

Equipment Failure 98% 96% - 96% 96% 25% 100% 100% - - - - 89% 82% - 100% 100% - - - - 74% 70% -

Operation 1% 3% 2% - - - - - - - - - - - - - - - - - - - - -

Other - - 98% 4% 4% - - - - - - - - - - - - - 100% 100% - 17% 15% -

Vegetation/Animal 1% 1% - - - 75% - - - - - - 11% 18% - - - - - - - 9% 15% -

Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - - - - - - -

MAXIMUS(16KV) - Customers: 2,773 - - - - - - 20.8 0.1 - - - - 1.9 0.0 - 0.9 0.0 1.0 - - - 2.8 0.0 1.0

3rd Party - - - - - - - - - - - - - - - - - - - - - - - -

Equipment Failure - - - - - - 32% 30% - - - - - - - - - 100% - - - - - 100%

Operation - - - - - - 68% 70% - - - - 100% 100% - 100% 100% - - - - 100% 100% -

Other - - - - - - - - - - - - - - - - - - - - - - - -

Vegetation/Animal - - - - - - - - - - - - - - - - - - - - - - - -

Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - - - - - - -

MCBEAN(16KV) - Customers: 2,880 401.8 2.4 2.8 18.1 0.0 - 90.1 0.6 1.9 0.6 0.0 - 15.2 0.0 - - - - - - - 15.9 0.0 -

3rd Party - - - - - - - - - - - - - - - - - - - - - - - -

Equipment Failure 78% 71% 51% 13% 8% - 1% 4% - 100% 100% - 100% 100% - - - - - - - 100% 100% -

Operation - - - - - - - - - - - - - - - - - - - - - - - -

Other - - - - - - - - - - - - - - - - - - - - - - - -

Vegetation/Animal 22% 29% 49% - - - - - 53% - - - - - - - - - - - - - - -

Weather/Fire/Earthquake - - - 87% 92% - 99% 96% 47% - - - - - - - - - - - - - - -

Reliability Histories for Individual Circuits Serving Santa Clarita - 8 of 14

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Page 23: Circuit Reliability Review - SCE · PDF fileInspecting and replacing overhead conductor and equipment to improve public safety ... measure our “system reliability” from this data

CircuitHistory9

SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI

MENTRY(16KV) - Customers: 2,317 1.0 0.0 1.0 8.1 0.0 - 50.2 0.9 1.1 2.9 0.0 - 102.6 1.8 - - - - 15.3 0.0 - 120.8 1.8 -

3rd Party - - - - - - - - - - - - - - - - - - 98% 88% - 12% 2% -

Equipment Failure - - - 96% 87% - 96% 98% - - - - 98% 100% - - - - 2% 12% - 84% 97% -

Operation 100% 100% - 4% 13% - 4% 2% - 100% 100% - 2% 0% - - - - - - - 4% 1% -

Other - - - - - - - - - - - - - - - - - - - - - - - -

Vegetation/Animal - - 100% - - - - - 100% - - - - - - - - - - - - - - -

Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - - - - - - -

MINT CANYON(16KV) - Customers: 1,213 40.0 0.2 - - - 1.0 54.0 1.3 1.0 0.9 0.0 - - - - - - - - - - 0.9 0.0 -

3rd Party - - - - - - - - - - - - - - - - - - - - - - - -

Equipment Failure 98% 95% - - - - 62% 12% - - - - - - - - - - - - - - - -

Operation 2% 5% - - - - 23% 12% - - - - - - - - - - - - - - - -

Other - - - - - - - - - 100% 100% - - - - - - - - - - 100% 100% -

Vegetation/Animal - - - - - - 15% 77% 100% - - - - - - - - - - - - - - -

Weather/Fire/Earthquake - - - - - 100% - - - - - - - - - - - - - - - - - -

MOCCASIN(16KV) - Customers: 1,428 0.6 0.0 - 118.3 1.1 - 86.8 0.1 0.9 - - - - - - 0.4 0.0 - 294.7 2.0 1.0 295.1 2.0 1.0

3rd Party - - - 85% 93% - - - - - - - - - - - - - - - - - - -

Equipment Failure - - - 6% 2% - 100% 100% - - - - - - - 100% 100% - - - - 0% 0% -

Operation 100% 100% - 9% 5% - - - - - - - - - - - - - - - - - - -

Other - - - - - - - - - - - - - - - - - - 100% 100% 100% 100% 100% 100%

Vegetation/Animal - - - - - - - - 100% - - - - - - - - - - - - - - -

Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - - - - - - -

MORRIE(16KV) - Customers: 283 - - - 58.1 0.5 2.5 283.4 2.7 3.6 5.1 0.0 - - - - 74.8 1.0 - - - - 79.9 1.0 -

3rd Party - - - - - - - - - - - - - - - - - - - - - - - -

Equipment Failure - - - 100% 100% 59% 79% 40% 17% - - - - - - 100% 100% - - - - 94% 96% -

Operation - - - - - - 2% 0% 28% 100% 100% - - - - - - - - - - 6% 4% -

Other - - - - - - 18% 37% 28% - - - - - - - - - - - - - - -

Vegetation/Animal - - - - - 41% 2% 22% 28% - - - - - - - - - - - - - - -

Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - - - - - - -

Reliability Histories for Individual Circuits Serving Santa Clarita - 9 of 14

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Page 24: Circuit Reliability Review - SCE · PDF fileInspecting and replacing overhead conductor and equipment to improve public safety ... measure our “system reliability” from this data

CircuitHistory10SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI

NEARGATE(16KV) - Customers: 1,626 366.3 1.9 1.1 94.2 3.2 1.9 342.6 2.6 2.4 17.1 0.2 2.0 3.2 0.0 1.0 113.0 0.8 0.2 274.4 1.1 0.2 407.7 2.1 3.4

3rd Party - - - - - - 26% 38% - - - - - - - 99% 99% 100% - - - 28% 37% 6%

Equipment Failure 0% 0% - 42% 54% 16% 72% 60% 18% 100% 100% 50% 100% 100% - 1% 1% - 0% 0% 100% 5% 9% 35%

Operation 2% 3% - 10% 2% - 2% 1% - - - - - - - - - - 7% 12% - 5% 6% -

Other - - - - - - - - - - - 50% - - 100% - - - 93% 88% - 62% 48% 59%

Vegetation/Animal - - 90% 49% 44% 84% - - 82% - - - - - - - - - - - - - - -

Weather/Fire/Earthquake 98% 97% 10% - - - - - - - - - - - - - - - - - - - - -

NERO(16KV) - Customers: 2,069 256.1 2.0 2.1 169.8 1.1 3.9 37.4 0.6 - - - - 6.0 0.2 - - - - 8.2 0.0 - 14.2 0.2 -

3rd Party - - - - - - - - - - - - - - - - - - - - - - - -

Equipment Failure 71% 73% 26% 95% 98% 75% 83% 28% - - - - 12% 2% - - - - - - - 5% 2% -

Operation 1% 4% - 0% 0% - 15% 71% - - - - 88% 98% - - - - - - - 37% 93% -

Other - - - 2% 2% - 2% 1% - - - - - - - - - - - - - - - -

Vegetation/Animal - - - - - - - - - - - - - - - - - - - - - - - -

Weather/Fire/Earthquake 28% 24% 74% 3% 1% 25% - - - - - - - - - - - - 100% 100% - 58% 5% -

NIGHTHAWK(16KV) - Customers: 342 70.5 1.0 1.0 16.0 1.2 1.8 421.5 4.6 6.1 - - - - - 3.0 - - - 291.4 1.2 0.8 291.4 1.2 3.8

3rd Party - - - - - - - - - - - - - - - - - - - - - - - -

Equipment Failure 99% 100% - - - - 85% 74% 53% - - - - - - - - - - - - - - -

Operation 1% 0% - - - - 0% 4% 14% - - - - - - - - - - - - - - -

Other - - 100% 100% 100% 100% 15% 22% 16% - - - - - 100% - - - - - - - - 78%

Vegetation/Animal - - - - - - - - 16% - - - - - - - - - 1% 14% 100% 1% 14% 22%

Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - 99% 86% - 99% 86% -

ORION(16KV) - Customers: 3,153 18.2 0.2 1.0 44.7 0.3 2.0 105.4 1.2 1.0 7.5 0.1 - - - - - - 1.0 46.0 1.0 3.0 53.6 1.1 4.0

3rd Party - - - - - - 17% 16% - - - - - - - - - - - - - - - -

Equipment Failure 10% 3% 0% 54% 69% 50% - - - - - - - - - - - - - - - - - -

Operation 90% 98% - 46% 31% - 10% 8% - 100% 100% - - - - - - - 100% 100% - 100% 100% -

Other - - 100% - - 50% 73% 76% - - - - - - - - - 100% - - 67% - - 75%

Vegetation/Animal - - - - - - - - 100% - - - - - - - - - - - 33% - - 25%

Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - - - - - - -

Reliability Histories for Individual Circuits Serving Santa Clarita - 10 of 14

2014 2015 2016 1st Qtr 2017 2nd Qtr 2017 3rd Qtr 2017 4th Qtr 2017 2017

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Page 25: Circuit Reliability Review - SCE · PDF fileInspecting and replacing overhead conductor and equipment to improve public safety ... measure our “system reliability” from this data

CircuitHistory11SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI

PLACERITA(16KV) - Customers: 1,369 6.7 0.0 - 126.7 1.0 1.0 264.4 2.4 2.1 0.4 0.0 - 231.3 1.0 - - - - - - - 231.7 1.0 -

3rd Party - - - - - - 67% 9% 50% - - - 100% 100% - - - - - - - 100% 100% -

Equipment Failure 100% 100% - 100% 100% - - - - - - - - - - - - - - - - - - -

Operation - - - - - - 5% 4% - 100% 100% - - - - - - - - - - 0% 0% -

Other - - - - - - 25% 43% - - - - - - - - - - - - - - - -

Vegetation/Animal - - - - - 100% 3% 43% 50% - - - - - - - - - - - - - - -

Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - - - - - - -

POWELL(16KV) - Customers: 2,243 11.4 0.0 1.0 65.7 0.8 1.0 9.4 0.1 1.0 46.9 0.6 1.6 63.8 0.5 2.7 7.4 0.0 1.0 49.2 0.1 - 167.4 1.2 5.3

3rd Party - - - - - - - - - - - - - - - - - - - - - - - -

Equipment Failure 100% 100% - 99% 99% 100% 59% 74% - - - - 94% 94% 100% 100% 100% 100% 1% 4% - 41% 42% 70%

Operation - - - - - - 36% 18% - - - - - - - - - - 99% 96% - 29% 9% -

Other - - - - - - 3% 7% - - - 67% 6% 6% - - - - - - - 2% 3% 20%

Vegetation/Animal - - 100% 1% 1% - - - 100% - - - - - - - - - - - - - - -

Weather/Fire/Earthquake - - - - - - 2% 1% - 100% 100% 33% - - - - - - - - - 28% 46% 10%

PYTHON(16KV) - Customers: 1,442 78.7 0.7 0.6 245.3 2.1 3.7 473.6 2.8 4.6 73.7 1.7 1.0 15.5 0.2 - 0.2 0.0 0.7 184.7 2.1 0.7 274.0 4.0 2.4

3rd Party - - - - - - 37% 49% 20% 54% 58% 30% - - - - - - - - - 15% 24% 12%

Equipment Failure 81% 86% - 75% 90% - 25% 17% 14% 46% 42% 70% - - - 100% 100% - 26% 55% 100% 30% 46% 58%

Operation 6% 2% - 16% 4% 27% 19% 8% 9% - - - 25% 5% - - - - 1% 1% - 2% 1% -

Other - - 55% 4% 3% 26% - - 29% - - - - - - - - - 73% 45% - 49% 23% -

Vegetation/Animal 14% 13% 45% 2% 3% 19% 19% 26% 28% - - - - - - - - 100% - - - - - 29%

Weather/Fire/Earthquake - - - 3% 0% 27% - - - - - - 75% 95% - - - - - - - 4% 6% -

RACER(16KV) - Customers: 722 213.6 1.1 0.4 71.5 0.4 - 31.3 0.6 3.5 - - - - - - - - - - - - - - -

3rd Party - - - 25% 61% - 18% 79% 43% - - - - - - - - - - - - - - -

Equipment Failure 100% 100% 100% 75% 39% - - - - - - - - - - - - - - - - - - -

Operation - - - - - - 82% 21% - - - - - - - - - - - - - - - -

Other - - - - - - - - 29% - - - - - - - - - - - - - - -

Vegetation/Animal - - - - - - - - 28% - - - - - - - - - - - - - - -

Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - - - - - - -

Reliability Histories for Individual Circuits Serving Santa Clarita - 11 of 14

2014 2015 2016 1st Qtr 2017 2nd Qtr 2017 3rd Qtr 2017 4th Qtr 2017 2017

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Page 26: Circuit Reliability Review - SCE · PDF fileInspecting and replacing overhead conductor and equipment to improve public safety ... measure our “system reliability” from this data

CircuitHistory12SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI

RATTLER(16KV) - Customers: 3,082 17.4 0.0 - - - - 69.3 0.1 1.9 - - - - - - 11.9 0.1 1.0 - - - 11.9 0.1 1.0

3rd Party - - - - - - - - - - - - - - - - - - - - - - - -

Equipment Failure 100% 100% - - - - 98% 95% - - - - - - - 100% 100% - - - - 100% 100% -

Operation - - - - - - 2% 5% - - - - - - - - - - - - - - - -

Other - - - - - - - - 50% - - - - - - - - - - - - - - -

Vegetation/Animal - - - - - - - - 50% - - - - - - - - - - - - - - -

Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - 100% - - - - - 100%

RINER(16KV) - Customers: 1,177 6.9 0.0 0.2 7.1 0.0 - 339.6 2.2 0.3 4.8 0.0 - - - - 399.1 0.5 1.0 - - - 403.9 0.6 1.0

3rd Party - - - - - - - - - - - - - - - - - - - - - - - -

Equipment Failure - - - - - - 82% 46% - - - - - - - 100% 96% 100% - - - 98% 90% 100%

Operation 100% 100% 100% 100% 100% - 9% 7% - 100% 100% - - - - 0% 4% - - - - 2% 10% -

Other - - - - - - - - - - - - - - - - - - - - - - - -

Vegetation/Animal - - - - - - 10% 46% 100% - - - - - - - - - - - - - - -

Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - - - - - - -

ROMANUS(16KV) - Customers: 2,109 23.2 0.1 - 12.3 0.8 0.2 14.0 0.1 0.0 218.2 1.6 1.3 108.4 0.8 0.2 - - - - - - 326.6 2.5 1.5

3rd Party - - - - - - - - - - - - - - - - - - - - - - - -

Equipment Failure 100% 100% - - - - 74% 71% - 97% 50% 86% 88% 97% 100% - - - - - - 94% 66% 87%

Operation - - - 34% 4% - 26% 29% 100% - - - 12% 3% - - - - - - - 4% 1% -

Other - - - - - - - - - - - - - - - - - - - - - - - -

Vegetation/Animal - - - - - - - - - 3% 50% 14% - - - - - - - - - 2% 33% 13%

Weather/Fire/Earthquake - - - 66% 96% 100% - - - - - - - - - - - - - - - - - -

SAND CANYON(16KV) - Customers: 2,305 14.7 0.1 1.1 194.2 2.2 3.0 467.9 3.1 7.0 16.1 0.0 2.0 5.2 0.0 - - - - 14.8 0.1 - 36.0 0.2 2.0

3rd Party - - - - - - - - - - - - - - - - - - - - - - - -

Equipment Failure 95% 97% 4% 93% 96% 100% 29% 65% - 100% 100% - - - - - - - 8% 2% - 48% 19% -

Operation 5% 3% - 0% 0% - 2% 0% 1% - - - 50% 48% - - - - 31% 68% - 20% 51% -

Other - - 96% 6% 4% - - - 43% - - - 38% 39% - - - - - - - 5% 9% -

Vegetation/Animal - - - - - - 1% 1% 57% - - - 13% 12% - - - - - - - 2% 3% -

Weather/Fire/Earthquake - - - 1% 0% - 68% 33% - - - 100% - - - - - - 61% 31% - 25% 18% 100%

Reliability Histories for Individual Circuits Serving Santa Clarita - 12 of 14

2014 2015 2016 1st Qtr 2017 2nd Qtr 2017 3rd Qtr 2017 4th Qtr 2017 2017

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Page 27: Circuit Reliability Review - SCE · PDF fileInspecting and replacing overhead conductor and equipment to improve public safety ... measure our “system reliability” from this data

CircuitHistory13SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI

STARFIGHTER(16KV) - Customers: 3,566 2.5 0.0 - - - - 127.2 0.7 0.3 7.6 0.1 - 5.4 0.0 - 10.1 0.1 - 215.9 3.3 2.0 239.0 3.4 2.0

3rd Party - - - - - - - - - - - - - - - - - - - - - - - -

Equipment Failure - - - - - - - - - 100% 100% - 100% 100% - 100% 100% - 29% 21% 16% 36% 25% 16%

Operation 100% 100% - - - - 1% 4% - - - - - - - - - - 47% 37% - 43% 35% -

Other - - - - - - - - - - - - - - - - - - 5% 21% 68% 5% 20% 68%

Vegetation/Animal - - - - - - 99% 96% 100% - - - - - - - - - 18% 21% 16% 16% 20% 16%

Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - - - - - - -

TIPS(16KV) - Customers: 637 - - - - - - 295.9 2.0 1.0 - - - - - - - - - - - - - - -

3rd Party - - - - - - - - - - - - - - - - - - - - - - - -

Equipment Failure - - - - - - 97% 51% - - - - - - - - - - - - - - - -

Operation - - - - - - - - - - - - - - - - - - - - - - - -

Other - - - - - - - - - - - - - - - - - - - - - - - -

Vegetation/Animal - - - - - - 3% 49% 100% - - - - - - - - - - - - - - -

Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - - - - - - -

TOGA(16KV) - Customers: 2,118 6.4 0.1 - 410.7 1.8 2.4 244.3 3.4 1.4 - - - 21.7 0.1 - 0.4 0.0 - - - - 22.1 0.1 -

3rd Party - - - 21% 16% 71% - - - - - - - - - - - - - - - - - -

Equipment Failure 100% 100% - 17% 44% 1% 39% 62% 50% - - - 75% 76% - - - - - - - 74% 74% -

Operation - - - 0% 5% - 61% 38% 50% - - - 25% 24% - - - - - - - 25% 23% -

Other - - - - - - - - - - - - - - - 100% 100% - - - - 2% 3% -

Vegetation/Animal - - - - - - - - - - - - - - - - - - - - - - - -

Weather/Fire/Earthquake - - - 62% 36% 29% - - - - - - - - - - - - - - - - - -

VAL VERDE(16KV) - Customers: 128 - - - - - - 10.5 1.0 1.0 - - - - - - - - - 3.4 0.4 0.6 3.4 0.4 0.6

3rd Party - - - - - - - - - - - - - - - - - - - - - - - -

Equipment Failure - - - - - - - - - - - - - - - - - - 100% 100% 100% 100% 100% 100%

Operation - - - - - - 24% 1% - - - - - - - - - - - - - - - -

Other - - - - - - - - - - - - - - - - - - - - - - - -

Vegetation/Animal - - - - - - 76% 99% 100% - - - - - - - - - - - - - - -

Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - - - - - - -

Reliability Histories for Individual Circuits Serving Santa Clarita - 13 of 14

2014 2015 2016 1st Qtr 2017 2nd Qtr 2017 3rd Qtr 2017 4th Qtr 2017 2017

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Page 28: Circuit Reliability Review - SCE · PDF fileInspecting and replacing overhead conductor and equipment to improve public safety ... measure our “system reliability” from this data

CircuitHistory14SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI

VASQUEZ(16KV) - Customers: 2,225 34.5 0.2 0.0 67.1 0.5 - 8.5 0.0 4.0 - - - - - - 26.8 0.2 - 10.4 0.0 - 37.2 0.2 -

3rd Party - - - - - - - - - - - - - - - - - - - - - - - -

Equipment Failure 63% 28% - 91% 91% - - - - - - - - - - 9% 30% - 100% 100% - 35% 40% -

Operation 12% 51% 100% 9% 9% - 100% 100% - - - - - - - 20% 25% - - - - 14% 22% -

Other - - - - - - - - - - - - - - - 70% 44% - - - - 51% 38% -

Vegetation/Animal - - - - - - - - 100% - - - - - - - - - - - - - - -

Weather/Fire/Earthquake 25% 21% - - - - - - - - - - - - - - - - - - - - - -

WILDWOOD(16KV) - Customers: 2,182 11.0 0.0 1.0 60.3 0.1 0.0 9.6 0.0 0.9 10.3 0.0 - 24.1 0.5 - - - - - - - 34.4 0.5 -

3rd Party - - - - - - - - - - - - - - - - - - - - - - - -

Equipment Failure - - - 71% 61% - - - - - - - 56% 24% - - - - - - - 39% 22% -

Operation 100% 100% - 29% 39% 100% 100% 100% - 100% 100% - 44% 76% - - - - - - - 61% 78% -

Other - - - - - - - - - - - - - - - - - - - - - - - -

Vegetation/Animal - - 100% - - - - - 100% - - - - - - - - - - - - - - -

Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - - - - - - -

WILEY(16KV) - Customers: 2,487 45.4 0.1 1.9 132.3 1.5 1.0 192.5 1.5 2.0 - - 1.0 - - - 0.6 0.0 - 34.8 0.1 - 35.4 0.1 1.0

3rd Party - - - - - - - - - - - - - - - - - - - - - - - -

Equipment Failure 100% 100% 49% 89% 97% 95% 100% 100% - - - - - - - 100% 100% - 98% 55% - 98% 60% -

Operation - - - 11% 3% 5% - - 48% - - - - - - - - - 2% 45% - 2% 40% -

Other - - - - - - - - - - - 100% - - - - - - - - - - - 100%

Vegetation/Animal - - 51% - - - - - 52% - - - - - - - - - - - - - - -

Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - - - - - - -

- - - - - - - - - - - - - - - - - - - - - - - - -

- - - - - - - - - - - - - - - - - - - - - - - - -

- - - - - - - - - - - - - - - - - - - - - - - - -

- - - - - - - - - - - - - - - - - - - - - - - - -

- - - - - - - - - - - - - - - - - - - - - - - - -

- - - - - - - - - - - - - - - - - - - - - - - - -

- - - - - - - - - - - - - - - - - - - - - - - - -

Reliability Histories for Individual Circuits Serving Santa Clarita - 14 of 14

2014 2015 2016 1st Qtr 2017 2nd Qtr 2017 3rd Qtr 2017 4th Qtr 2017 2017

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