PowerPoint Presentation - SCE...Our Grid To deliver power safely, reliably and affordably, we...

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Circuit Reliability Review San Bernardino District 1 2020

Transcript of PowerPoint Presentation - SCE...Our Grid To deliver power safely, reliably and affordably, we...

Page 1: PowerPoint Presentation - SCE...Our Grid To deliver power safely, reliably and affordably, we monitor and maintain a vast electricity system. 730,000 Transformers 119,000 Miles of

Circuit Reliability Review

San Bernardino District 1

2020

Page 2: PowerPoint Presentation - SCE...Our Grid To deliver power safely, reliably and affordably, we monitor and maintain a vast electricity system. 730,000 Transformers 119,000 Miles of

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• Southern California Edison (SCE) is an Edison International company

• One of the nation’s largest electric utilities

• More than 130 years of history

• Headquartered in Rosemead, California

• Regulated by the California Public Utilities Commission (CPUC) and the Federal Energy Regulatory Commission (FERC)

• 50,000 square miles of SCE service area across Central, Coastal, and Southern California

• 15 million residents in service territory

• 5 million customer accounts in 445 cities and communities

Who We Are

Page 3: PowerPoint Presentation - SCE...Our Grid To deliver power safely, reliably and affordably, we monitor and maintain a vast electricity system. 730,000 Transformers 119,000 Miles of

Our Grid

To deliver power safely, reliably and affordably, we monitor and maintain a vast electricity system.

730,000 Transformers

119,000 Miles of Transmission and Distribution Lines

4,600 Circuits

1.5 Million Poles

50,000 Square Miles

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Page 4: PowerPoint Presentation - SCE...Our Grid To deliver power safely, reliably and affordably, we monitor and maintain a vast electricity system. 730,000 Transformers 119,000 Miles of

Strengthening and Modernizing the Grid

• Infrastructure reliability – updating underground

cables, poles, switches, and transformers

• Wildfire mitigation – hardening infrastructure,

bolstering situational awareness capabilities, and

enhancing operational practices

• Transmission – connecting renewables, installing

new substations, and updating lines

• Grid readiness – updating the grid for impacts

from new technologies

• Long-term energy policy – supporting energy

storage, electric vehicles, and renewables

SCE plans to spend more than $5B each

year to maintain, improve, and harden

its infrastructure.

SCE’s investments support safe, reliable, affordable, and clean energy for our customers

2019 Capital Investments

179 miles of underground cable replaced

502 miles of overhead conductor replaced for public safety

16.4k distribution poles replaced

4.3k transmission poles replaced

71 underground structure replacements

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Page 5: PowerPoint Presentation - SCE...Our Grid To deliver power safely, reliably and affordably, we monitor and maintain a vast electricity system. 730,000 Transformers 119,000 Miles of

PATHWAY 2045SCE’S vision to help California achieve a carbon neutral future

Carbon neutrality is achieved through deep decarbonization of

electricity, transportation and building electrification,

and the use of low-carbon fuels

Meeting California’s Climate Change Goals

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Page 6: PowerPoint Presentation - SCE...Our Grid To deliver power safely, reliably and affordably, we monitor and maintain a vast electricity system. 730,000 Transformers 119,000 Miles of

• SCE filed its second Wildfire

Mitigation Plan in February 2020

• It builds on the progress made

in 2019 to reduce the risk of fire

ignitions caused by utility

infrastructure

• SCE crews will continue to work

to install hi-tech wildfire

mitigation tools and

technologies to make

communities safer, more

resilient, and to help reduce the

number of Public Safety Power

Shutoffs (PSPS)

Addressing Wildfire Risk

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• De-energizing power lines to prevent ignitions

• Used during elevated fire conditions

• Primarily impacts circuits in high fire risk areas

• Use of multiple methods to notify people in affected areas before, during and after a de-energization event

Public Safety Power Shutoffs (PSPS)

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4-7 DAYS AHEAD

3 DAYSAHEAD

2 DAYSAHEAD

1 DAY AHEAD POWER SHUTOFF

POWER RESTORATION

PLANNING AND MONITORING OUTAGE

*Erratic or sudden onset of conditions may impact our ability to provide advanced notice to customers.

Forecast Weather & Fire

Conditions

SCE Incident Management Team on Alert

County Operational Areas

informed of potential activation

SCE Incident Management

Team Activated

1st Notification PSPS Possible sent

to agencies and customers

2nd Notification PSPS

Possible

3rd Notification Power Shutoff

4th Notification Power Restored After Inspection

Page 8: PowerPoint Presentation - SCE...Our Grid To deliver power safely, reliably and affordably, we monitor and maintain a vast electricity system. 730,000 Transformers 119,000 Miles of

Reliability Overview

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Page 9: PowerPoint Presentation - SCE...Our Grid To deliver power safely, reliably and affordably, we monitor and maintain a vast electricity system. 730,000 Transformers 119,000 Miles of

What is Reliability?

• In simplest terms:

Having dependable electricity when you need it.

• Outages:

• Maintenance outages (aka planned outages)

• Repair outages (aka unplanned outages)

• Sustained Outage = An outage lasting > 5 minutes

• Momentary Outage = An outage lasting ≤ 5 minutes

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Major Event Day (MED) : A day in which the daily system SAIDI exceeds a threshold value. For the purposes of calculating daily system SAIDI, any interruption that spans multiple calendar days is accrued to the day on which the interruption began. Statistically, days having a daily system SAIDI greater than a threshold value are days on which the energy delivery system experienced stresses beyond that normally expected (such as severe weather).

Public Safety Power Shutoff (PSPS) : An operational protocol that SCE implements under extreme weather conditions in order to minimize the threat of wildfires and keep communities safe from potentially dangerous situations. These types of sustained outages are temporary and usually involve situations where high fire areas are experiencing adverse weather or public safety is at risk.

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How Do We Measure Reliability?

SAIDI SAIFI MAIFI CAIDI

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CityList1Cities /Areas in San Bernardino District 1ORO GRANDE

AMBOY

APPLE VALLEY

ARGUS

BAGDAD

BAKER

BALDY MESA

ADELANTO

NIPTON

OAK HILLS

EL MIRAGE

ESSEX

FENNER

FORT IRWIN

BIG RIVER

CADIZ

CALICO

CIMA

MT. PASS

NEEDLES

NEWBERRY SPRINGS

PARKER DAM

PHELAN

PINON HILLS

RANDSBURG

RED MOUNTAIN

RICE

SALTUS

IVANPAH

KELSO

KRAMER

LENWOOD

LUDLOW

MILLIGAN

GOFFS

HAVASU LAKE

HELENDALE

HESPERIA

HINKLEY

HOMER

EARP

EDWARDS A.F.B.

WHEATON SPRINGS

WRIGHTWOOD

YERMO

SEARCHLIGHT JUNCTION

SILVER LAKES

SPRING VALLEY LAKE

SUMMIT VALLEY

TRONA

VICTORVILLE

VIDAL

WEST CAJON VALLEY

DAGGETT

DEER LODGE PARK

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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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CircuitList1Overview of San Bernardino District 1There are 118 circuits that serve San Bernardino District 1 1

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

ARMIJO(12KV) 188 FLOODGATE(12KV) 1,974 MC CLARY(4.16KV) 110 SKY HI(12KV) 1,588

ASTOR(12KV) 2,537 FLUE(12KV) 1,803 MEADOWLARK(12KV) 137 SPEAR(12KV) 1,953

BANSHEE(16KV) 164 GAMBLER(12KV) 1,457 MELODY(25KV) 1,886 SPETH(12KV) 255

BAROID(33KV) 17 GREER(12KV) 425 MIRROR(12KV) 1,420 SPRING VALLEY(12KV) 1,948

BEECHERS(2.4KV) 36 HACKMAN(33KV) 10 MONTARA(33KV) 1 SQUINT(12KV) 1,189

BLUE CUT(12KV) 299 HARDROCK(12KV) 185 MULE CANYON(12KV) 351 STANDING ROCK(12KV) 2,319

BOISE(12KV) 1,030 HECTOR(12KV) 361 NASSAU(12KV) 1,771 SUNDOWN(12KV) 2,948

BOOK(33KV) 2 HELIOS(12KV) 505 NIPTON(33KV) 55 TALC(12KV) 16

BOWMAN(12KV) 3,159 HIDDEN(12KV) 2 NOBLE(12KV) 1 TETLEY(12KV) 868

BRAGDON(12KV) 348 HUTT(12KV) 3 OLANCHA(12KV) 1,113 THRUSH(2.4KV) 567

BRUCITE(12KV) 2,101 INN(12KV) 190 OLD TRAILS(33KV) 3 TONTO(12KV) 2,507

BUG(33KV) 3 ISNER(33KV) 6 PAPPAS(33KV) 4 TOPOC(16KV) 860

CALCADIA(12KV) 4 JEEP(12KV) 2,070 PATIO(12KV) 581 TUMBLEWEED(2.4KV) 68

CARDINAL(2.4KV) 526 JET SKI(12KV) 407 PENSTOCK(12KV) 1,948 TUNNEL(12KV) 1,025

CASTLEROCK(12KV) 287 JOBURG(2.4KV) 252 POCO(33KV) 18 TURKEY(12KV) 972

CATERPILLAR(12KV) 1,349 JUDY(12KV) 1,008 POINT OF ROCKS(12KV) 601 TUSSING(12KV) 1,875

CEMENT(33KV) 8 KELLY(4.16KV) 154 POLICE(12KV) 910 UNDERWORLD(12KV) 564

CHAVEZ(12KV) 108 KENO(12KV) 2,599 POTASH(12KV) 224 VERDEMONT(33KV) 11

CHOICEANNA(12KV) 1,713 KENWORTH(12KV) 2,300 POTOSI(25KV) 87 WEISS(4.16KV) 181

CIRCLE(12KV) 201 KOALA(12KV) 2,278 RAPTOR(12KV) 10 WESTEND(12KV) 32

COALINGA(12KV) 1,287 LARK(2.4KV) 719 REMOTE(33KV) 37 ZIGGY(12KV) 7

CROSSING(12KV) 64 LAVA(12KV) 39 ROBIN(12KV) 169 CISTERN(12KV) 1,169

DAIRY(12KV) 326 LINNET(2.4KV) 712 RUSS BOYD(33KV) 5 HOUSING(12KV) 1

DANBY(16KV) 92 LOCKHART(33KV) 10 SAGEBRUSH(4.16KV) 9 FAIRBURN(12KV) 1,618

DEALER(12KV) 1,652 LOTTO(12KV) 2,461 SALT(16KV) 3 GOLDPAN(12KV) 1,585

DESOLATE(12KV) 558 LUZ(33KV) 5 SEAFORTH(12KV) 2,364 RIO VISTA(12KV) 2

DICE(33KV) 2 MACK(12KV) 1,363 SEALS(12KV) 1,063 NEBO(12KV) 37

DYSON(33KV) 1 MARL(16KV) 18 SHANGRILA(12KV) 2,024 CAL BAKE(33KV) 1

EARTH(12KV) 27 MAUEL(12KV) 1,157 SHEEPHOLE(33KV) 8 -

EXPRESS(33KV) 3 MC CASLIN(4.16KV) 57 SHOSHONE(33KV) 19 -

Grand Total 85,720

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Page 14: PowerPoint Presentation - SCE...Our Grid To deliver power safely, reliably and affordably, we monitor and maintain a vast electricity system. 730,000 Transformers 119,000 Miles of

BarChart

SCE SYSTEMWIDE

**Data is as of 02/14/2020, data

can be slightly different due to

outage data validation process

San Bernardino District 1

Reliability History of Circuits Serving San Bernardino District 1 (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.

225.5 219.1

191.8

305.2

134.5 139.7 136.8

178.0

0.0

50.0

100.0

150.0

200.0

250.0

300.0

350.0

2016 2017 2018 2019

SAIDI

(average

minutes of

sustained

interruptions)

1.31.5

1.1

1.8

1.11.2

0.91.0

0.0

0.5

1.0

1.5

2.0

SAIFI

(average

frequency of

sustained

interruptions)

2.4

3.2

1.8

3.1

1.61.8

1.4 1.4

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

MAIFI

(average

frequency of

momentary

interruptions)

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Page 15: PowerPoint Presentation - SCE...Our Grid To deliver power safely, reliably and affordably, we monitor and maintain a vast electricity system. 730,000 Transformers 119,000 Miles of

SAIDIChart

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

Causes of Repair Outages in San Bernardino District 1

2019

3rd Party

4.5%

Equipment Failure

25.5%

Operation

9.7%

Other

27.8%

Vegetation /Animal

4.2%

Weather /Fire

/Earthquake

27.2%

PSPS

1.1%

Contributions to SAIDI by Outage Cause

3rd Party

Equipment Failure

Operation

Other

Vegetation /Animal

Weather /Fire /Earthquake

PSPS

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,

PSPS Operations

e.g., urgent maintenance w/o 3-daynotice

3rd Party e.g., balloon, car hit pole, dig-in

PSPS

e.g., Public Safety Power Shutoff

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Page 16: PowerPoint Presentation - SCE...Our Grid To deliver power safely, reliably and affordably, we monitor and maintain a vast electricity system. 730,000 Transformers 119,000 Miles of

SAIFIChart

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

Causes of Repair Outages in San Bernardino District 1

2019

3rd Party

6.2%

Equipment Failure

29.7%

Operation

16.9%

Other

28.0%

Vegetation /Animal

9.3%

Weather /Fire

/Earthquake

9.7%

PSPS

0.2%

Contributions to SAIFI by Outage Cause

3rd Party

Equipment Failure

Operation

Other

Vegetation /Animal

Weather /Fire /Earthquake

PSPS

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

PSPS

e.g., Public Safety Power Shutoff

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Back-up Slides

Reliability Histories of Circuits Serving San Bernardino District 1

Updated through Dec 2019

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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

225.5 1.3 2.4 219.1 1.5 3.2 191.8 1.1 1.8 42.0 0.6 1.4 20.2 0.3 0.6 62.1 0.3 0.4 180.9 0.6 0.7 305.2 1.8 3.1

3rd Party 7% 9% 11% 10% 11% 8% 8% 10% 14% 3% 6% 4% 18% 17% 10% 14% 7% 20% 0% 0% 3% 5% 6% 7%

Equipment Failure 33% 45% 15% 40% 31% 13% 42% 32% 19% 48% 38% 22% 20% 12% 17% 12% 13% 21% 26% 40% 12% 26% 30% 18%

Operation 11% 14% 4% 5% 12% 4% 3% 16% 7% 13% 11% 2% 21% 29% 8% 6% 12% 0% 9% 20% 8% 10% 17% 4%

Other 15% 21% 54% 29% 25% 56% 37% 25% 51% 26% 38% 45% 20% 20% 58% 39% 32% 56% 25% 19% 72% 28% 28% 55%

Vegetation/Animal 3% 4% 9% 4% 9% 11% 6% 11% 5% 1% 3% 2% 6% 14% 7% 16% 31% 1% 1% 2% 3% 4% 9% 3%

Weather/Fire/Earthquake 30% 7% 7% 12% 12% 8% 3% 6% 4% 9% 4% 25% 16% 8% 1% 13% 5% 0% 38% 19% 3% 27% 10% 12%

PSPS - - - - - - - - - - - - - - - - - - 2% 1% 1% 1% 0% 0%

SCE SYSTEMWIDE 134.5 1.1 1.6 139.7 1.2 1.8 136.8 0.9 1.4 28.1 0.3 0.4 18.9 0.2 0.4 31.8 0.2 0.3 99.3 0.3 0.3 178.0 1.0 1.4

Average Reliability of 118 Circuits Serving San Bernardino District 1

4th Qtr 2019 20192016 2017 2018 1st Qtr 2019 2nd Qtr 2019 3rd Qtr 2019

118 Circuits Serving San Bernardino District 1 --

Total Customers: 85,720

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 conductorsPSPS: e.g., Public Safety Power Shutoff

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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Page 21: PowerPoint Presentation - SCE...Our Grid To deliver power safely, reliably and affordably, we monitor and maintain a vast electricity system. 730,000 Transformers 119,000 Miles of

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

ARMIJO(12KV) - Customers: 188 280.9 4.0 1.0 9.3 0.0 1.0 31.0 0.1 1.0 3.9 0.0 - 49.3 0.1 1.0 0.8 0.0 - 44.2 2.0 - 98.2 2.1 1.0

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

Equipment Failure 37% 25% - 12% 25% - 71% 83% - 100% 100% - 16% 23% - - - - - - - 12% 2% -

Operation 8% 25% - - - 1% - - - - - - 51% 59% - - - - - - - 25% 3% -

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

Vegetation/Animal 36% 25% - 88% 75% - 29% 17% - - - - - - - 100% 100% - - - - 1% 0% -

Weather/Fire/Earthquake 19% 25% - - - - - - - - - - 33% 18% - - - - 100% 100% - 61% 95% -

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

ASTOR(12KV) - Customers: 2,537 - - - 14.6 0.6 0.4 17.5 0.1 - - - - 39.2 0.6 0.4 - - - - - - 39.2 0.6 0.4

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

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

Operation - - - 37% 10% - - - - - - - - - - - - - - - - - - -

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

Vegetation/Animal - - - 63% 90% 100% - - - - - - - - - - - - - - - - - -

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

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

BANSHEE(16KV) - Customers: 164 333.0 3.0 24.0 2659.4 10.0 12.0 204.3 2.0 4.0 244.1 1.2 - - - - - - 2.0 - - 1.0 244.1 1.2 3.0

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

Equipment Failure - - - 21% 20% 25% - - - 21% 50% - - - - - - - - - - 21% 50% -

Operation - - - 9% 10% - - - - - - - - - - - - - - - - - - -

Other 100% 100% 96% 69% 70% 67% 100% 100% 75% 79% 50% - - - - - - 100% - - 100% 79% 50% 100%

Vegetation/Animal - - 4% - - 8% - - - - - - - - - - - - - - - - - -

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

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

BAROID(33KV) - Customers: 17 36.6 1.0 1.5 508.7 4.5 8.0 86.6 1.9 3.0 - - 1.0 - - 2.5 - - - - - - - - 3.5

3rd Party - - - - - 25% - - - - - - - - 40% - - - - - - - - 28%

Equipment Failure 100% 100% 35% 34% 34% - - - - - - - - - - - - - - - - - - -

Operation - - - 14% 22% - 14% 52% 35% - - - - - - - - - - - - - - -

Other - - 65% 39% 22% 63% 86% 48% 33% - - 100% - - 60% - - - - - - - - 72%

Vegetation/Animal - - - - - 13% - - - - - - - - - - - - - - - - - -

Weather/Fire/Earthquake - - - 12% 22% - - - 33% - - - - - - - - - - - - - - -

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

Reliability Histories for Individual Circuits Serving San Bernardino District 1 - 1 of 30

2016 2017 2018 1st Qtr 2019 2nd Qtr 2019 3rd Qtr 2019 4th Qtr 2019 2019

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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

BEECHERS(2.4KV) - Customers: 36 187.0 1.0 - 391.7 0.1 - 103.8 1.0 - - - - - - - - - - - - - - - -

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

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

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

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

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

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

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

BLUE CUT(12KV) - Customers: 299 12672.5 7.6 5.0 2212.6 7.8 6.1 253.1 2.0 5.2 81.4 0.8 1.0 9.7 0.1 1.2 251.3 2.0 - 1373.3 2.4 1.4 1715.7 5.3 3.5

3rd Party 2% 25% 38% 9% 25% - - - 39% - - - - - - - - - - - - - - -

Equipment Failure 3% 39% 22% 53% 33% 42% 18% 3% - - - - 94% 83% 100% 95% 50% - 0% 0% 0% 15% 20% 33%

Operation 1% 11% - 0% 0% 3% 26% 4% - - - 100% 6% 17% - 5% 50% - 0% 0% - 1% 19% 28%

Other 3% 10% 39% 2% 13% 55% 56% 93% 61% - - - - - - - - - 11% 35% 100% 9% 16% 39%

Vegetation/Animal - - - - - - - - - - - - - - - - - - 0% 30% - 0% 14% -

Weather/Fire/Earthquake 92% 15% - 36% 28% - - - - 100% 100% - - - - - - - 88% 34% - 75% 31% -

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

BOISE(12KV) - Customers: 1,030 14.3 0.1 - 257.2 1.7 2.9 31.1 0.1 1.0 5.9 0.0 - 54.8 0.2 1.2 3.6 0.0 - - - - 64.3 0.2 1.2

3rd Party - - - - - 34% - - 100% - - - - - - - - - - - - - - -

Equipment Failure 94% 63% - 80% 78% 66% 100% 100% - 100% 100% - 9% 25% - 5% 38% - - - - 17% 32% -

Operation 6% 37% - 20% 22% - - - - - - - 91% 75% - 95% 62% - - - - 83% 68% -

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

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

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

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

BOOK(33KV) - Customers: 2 - - - 18.0 1.0 4.0 71.0 1.0 1.0 - - - - - - - - - - - - - - -

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

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

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

Other - - - - - 25% 100% 100% 100% - - - - - - - - - - - - - - -

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

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

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

Reliability Histories for Individual Circuits Serving San Bernardino District 1 - 2 of 30

2016 2017 2018 1st Qtr 2019 2nd Qtr 2019 3rd Qtr 2019 4th Qtr 2019 2019

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Page 23: PowerPoint Presentation - SCE...Our Grid To deliver power safely, reliably and affordably, we monitor and maintain a vast electricity system. 730,000 Transformers 119,000 Miles of

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

BOWMAN(12KV) - Customers: 3,159 6.8 0.1 2.0 104.7 1.4 1.5 32.7 0.1 0.4 1.1 0.0 - 3.0 0.0 0.9 52.6 0.3 0.7 - - - 56.7 0.4 1.6

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

Equipment Failure 16% 14% 0% 19% 27% - 86% 89% - - - - 3% 4% 100% 80% 40% 50% - - - 74% 37% 79%

Operation 84% 86% - 8% 3% - 13% 8% - - - - 60% 83% - 20% 60% - - - - 22% 60% -

Other - - 50% - - 93% 2% 3% 100% - - - 37% 13% - - - 50% - - - 2% 1% 21%

Vegetation/Animal - - 50% 0% 0% - - - - 100% 100% - - - - - - - - - - 2% 3% -

Weather/Fire/Earthquake - - - 72% 70% 7% - - - - - - - - - - - - - - - - - -

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

BRAGDON(12KV) - Customers: 348 180.0 2.1 3.0 909.2 10.0 6.9 144.6 2.7 3.0 15.3 0.4 0.6 13.9 1.4 4.2 11.0 0.0 0.7 9.1 0.2 - 49.2 2.0 5.4

3rd Party - - - 1% 1% 29% - - - - - - 27% 29% 14% - - - 98% 97% - 26% 28% 11%

Equipment Failure 87% 95% 52% 49% 57% - 68% 18% - - - - - - 14% 58% 73% - - - - 13% 1% 11%

Operation - - - 10% 16% - 11% 38% 20% 4% 1% - 73% 71% - - - - - - - 22% 50% -

Other 7% 2% 44% 32% 13% 58% 19% 40% 33% 96% 99% 100% - - 72% - - 100% 2% 3% - 30% 20% 78%

Vegetation/Animal - - - 0% 4% 14% - - - - - - - - - - - - - - - - - -

Weather/Fire/Earthquake 6% 3% 4% 8% 10% - 3% 5% 47% - - - - - - 42% 27% - - - - 9% 0% -

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

BRUCITE(12KV) - Customers: 2,101 11.3 0.0 - 35.4 1.0 1.0 124.5 1.1 0.7 0.7 0.0 - - - - - - - - - - 0.7 0.0 -

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

Equipment Failure 100% 100% - 100% 100% - 99% 99% 100% - - - - - - - - - - - - - - -

Operation - - - - - - 1% 1% - 100% 100% - - - - - - - - - - 100% 100% -

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

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

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

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

BUG(33KV) - Customers: 3 65.0 3.0 10.0 262.0 5.0 8.0 - - 3.0 181.0 1.3 - - - - - - 1.0 - - 2.0 181.0 1.3 3.0

3rd Party - - - - - - - - 33% - - - - - - - - - - - - - - -

Equipment Failure 31% 33% 20% 40% 20% - - - - 82% 25% - - - - - - - - - - 82% 25% -

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

Other 58% 33% 80% 56% 60% 100% - - 33% 18% 75% - - - - - - 100% - - 100% 18% 75% 100%

Vegetation/Animal - - - 4% 20% - - - 33% - - - - - - - - - - - - - - -

Weather/Fire/Earthquake 11% 33% - - - - - - - - - - - - - - - - - - - - - -

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

Reliability Histories for Individual Circuits Serving San Bernardino District 1 - 3 of 30

2016 2017 2018 1st Qtr 2019 2nd Qtr 2019 3rd Qtr 2019 4th Qtr 2019 2019

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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

CAL BAKE(33KV) - Customers: 1 - - - - - - 12.2 1.0 - - - 1.0 - - - - - - - - - - - 1.0

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

Equipment Failure - - - - - - - - - - - - - - - - - - - - - - - -

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

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

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

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

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

CALCADIA(12KV) - Customers: 4 1097.3 5.0 8.0 1394.0 4.0 16.0 103.7 1.9 11.5 - - 1.0 - - 2.0 - - - - - - - - 3.0

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

Equipment Failure - - - - - - - - - - - - - - 50% - - - - - - - - 33%

Operation 52% 60% - 18% 25% 6% 12% 50% 83% - - - - - - - - - - - - - - -

Other 4% 20% 100% 82% 75% 94% 88% 50% 17% - - 100% - - 50% - - - - - - - - 67%

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

Weather/Fire/Earthquake 44% 20% - - - - - - - - - - - - - - - - - - - - - -

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

CARDINAL(2.4KV) - Customers: 526 573.8 2.9 3.8 997.7 2.0 2.9 1231.4 3.0 1.0 162.2 1.0 3.8 1.4 0.0 - - - - - - - 163.6 1.0 3.8

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

Equipment Failure 48% 34% 49% 66% 50% - 5% 33% - 100% 100% 100% - - - - - - - - - 99% 99% 100%

Operation - - - - - - 5% 33% 100% - - - 100% 100% - - - - - - - 1% 1% -

Other - - 26% - - 35% 90% 34% - - - - - - - - - - - - - - - -

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

Weather/Fire/Earthquake 52% 66% 25% 34% 50% 65% - - - - - - - - - - - - - - - - - -

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

CASTLEROCK(12KV) - Customers: 287 232.0 2.0 2.4 433.4 3.1 3.0 174.6 2.0 - - - - - - - 162.8 1.0 - - - - 162.8 1.0 -

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

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

Operation 0% 0% - 10% 5% 33% - - - - - - - - - - - - - - - - - -

Other 58% 50% 84% 85% 32% 33% 9% 50% - - - - - - - - - - - - - - - -

Vegetation/Animal 42% 50% 16% 3% 32% - - - - - - - - - - - - - - - - - - -

Weather/Fire/Earthquake - - - 2% 31% - 91% 50% - - - - - - - 100% 100% - - - - 100% 100% -

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

Reliability Histories for Individual Circuits Serving San Bernardino District 1 - 4 of 30

2016 2017 2018 1st Qtr 2019 2nd Qtr 2019 3rd Qtr 2019 4th Qtr 2019 2019

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Page 25: PowerPoint Presentation - SCE...Our Grid To deliver power safely, reliably and affordably, we monitor and maintain a vast electricity system. 730,000 Transformers 119,000 Miles of

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

CATERPILLAR(12KV) - Customers: 1,349 - - - - - - 25.6 0.5 0.5 - - - - - - - - - - - 2.0 - - 2.0

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

Equipment Failure - - - - - - - - - - - - - - - - - - - - - - - -

Operation - - - - - - - - - - - - - - - - - - - - 50% - - 50%

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

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

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

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

CEMENT(33KV) - Customers: 8 188.2 2.2 9.0 5.9 0.1 2.1 186.7 3.6 1.9 16.7 0.2 - - - 0.9 - - 1.1 - - - 16.7 0.2 2.0

3rd Party 2% 15% - - - - - - - 100% 100% - - - - - - - - - - 100% 100% -

Equipment Failure 46% 50% - - - - - - - - - - - - - - - - - - - - - -

Operation 1% 5% 11% - - - - - - - - - - - - - - - - - - - - -

Other 9% 15% 67% - - 47% 1% 3% 50% - - - - - 100% - - 100% - - - - - 100%

Vegetation/Animal 43% 15% 22% 100% 100% 53% 99% 97% 50% - - - - - - - - - - - - - - -

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

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

CHAVEZ(12KV) - Customers: 108 12.1 0.0 1.9 654.4 1.6 11.2 858.9 1.0 0.1 7.0 0.2 1.7 1.9 0.2 1.8 17.7 0.1 - - - 0.1 26.6 0.5 3.6

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

Equipment Failure - - - 76% 67% - - - - - - - - - - - - - - - - - - -

Operation - - - 23% 18% - - - - - - - - - - 100% 100% - - - - 67% 21% -

Other - - 100% 1% 15% 100% - - 100% 100% 100% 100% 100% 100% 100% - - - - - 100% 33% 79% 100%

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

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

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

CHOICEANNA(12KV) - Customers: 1,713 0.3 0.0 7.0 33.9 0.5 0.9 - - - - - - 43.8 1.0 - - - - - - 1.0 43.8 1.0 1.0

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

Equipment Failure 100% 100% 29% 100% 100% 100% - - - - - - - - - - - - - - - - - -

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

Other - - 14% - - - - - - - - - 100% 100% - - - - - - 100% 100% 100% 100%

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

Weather/Fire/Earthquake - - 57% - - - - - - - - - - - - - - - - - - - - -

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

Reliability Histories for Individual Circuits Serving San Bernardino District 1 - 5 of 30

2016 2017 2018 1st Qtr 2019 2nd Qtr 2019 3rd Qtr 2019 4th Qtr 2019 2019

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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

CIRCLE(12KV) - Customers: 201 271.0 1.0 - 659.3 1.0 5.0 417.4 1.1 1.0 - - - 1.3 0.0 - - - - - - - 1.3 0.0 -

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

Equipment Failure - - - 100% 100% - 6% 6% - - - - - - - - - - - - - - - -

Operation 100% 100% - - - 20% - - - - - - 100% 100% - - - - - - - 100% 100% -

Other - - - - - 80% 94% 94% 100% - - - - - - - - - - - - - - -

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

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

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

CISTERN(12KV) - Customers: 1,169 91.7 1.0 - - - - - - - - - - - - 1.0 - - 1.0 - - - - - 2.0

3rd Party 100% 100% - - - - - - - - - - - - 100% - - - - - - - - 50%

Equipment Failure 0% 0% - - - - - - - - - - - - - - - - - - - - - -

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

Other - - - - - - - - - - - - - - - - - 100% - - - - - 50%

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

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

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

COALINGA(12KV) - Customers: 1,287 115.0 1.0 - 47.2 0.8 0.4 12.8 1.0 3.0 6.0 0.0 1.0 0.9 0.0 - 5.6 0.1 - - - - 12.5 0.1 1.0

3rd Party 100% 100% - - - - 11% 1% - - - - - - - - - - - - - - - -

Equipment Failure 0% 0% - 23% 11% - 89% 99% 100% 42% 28% - 100% 100% - 41% 39% - - - - 45% 39% -

Operation - - - 62% 10% - - - - - - - - - - - - - - - - - - -

Other - - - - - - - - - 58% 72% 100% - - - 59% 61% - - - - 55% 61% 100%

Vegetation/Animal - - - 15% 78% 100% - - - - - - - - - - - - - - - - - -

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

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

CROSSING(12KV) - Customers: 64 18.8 0.0 4.0 227.0 3.3 2.0 358.7 1.2 1.0 - - - - - 0.1 1063.4 1.0 2.0 192.0 1.6 - 1255.4 2.6 2.1

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

Equipment Failure 100% 100% 25% - - - 9% 6% - - - - - - - - - - 13% 8% - 2% 5% -

Operation - - - 14% 10% - 0% 9% - - - - - - - - - - - - - - - -

Other - - 75% 86% 90% 100% 77% 82% 100% - - - - - 100% 100% 100% 100% 87% 92% - 98% 95% 100%

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

Weather/Fire/Earthquake - - - - - - 14% 3% - - - - - - - - - - - - - - - -

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

Reliability Histories for Individual Circuits Serving San Bernardino District 1 - 6 of 30

2016 2017 2018 1st Qtr 2019 2nd Qtr 2019 3rd Qtr 2019 4th Qtr 2019 2019

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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

DAIRY(12KV) - Customers: 326 452.6 3.5 3.5 274.4 3.9 1.5 43.3 0.3 1.4 5.8 0.0 - 9.6 0.0 - 0.4 0.0 1.0 4.4 0.0 0.2 20.2 0.1 1.2

3rd Party - - 28% 31% 26% - 30% 62% - - - - - - - - - - - - - - - -

Equipment Failure 2% 1% - 0% 0% - 5% 1% - - - - 74% 33% - 100% 100% - - - - 37% 12% -

Operation 13% 21% 7% 54% 26% - - - - 100% 100% - - - - - - - - - - 29% 12% -

Other 38% 46% 64% 10% 44% 100% - - 100% - - - 26% 67% - - - 100% 100% 100% 100% 34% 76% 100%

Vegetation/Animal 31% 28% - 5% 4% - 0% 1% - - - - - - - - - - - - - - - -

Weather/Fire/Earthquake 15% 4% - - - - 65% 36% - - - - - - - - - - - - - - - -

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

DANBY(16KV) - Customers: 92 32.6 2.1 7.9 321.6 1.0 12.0 2381.4 7.0 5.9 35.1 1.0 0.1 58.0 1.1 2.9 22.5 0.3 - 656.3 4.0 4.3 771.9 6.4 7.3

3rd Party - - - - - - 57% 14% - - - - 69% 89% 0% - - - - - - 5% 16% 0%

Equipment Failure - - - - - - 0% 0% 5% - - - - - - - - - 15% 22% 8% 13% 14% 5%

Operation 18% 2% - - - - 6% 28% - - - - - - - - - - 8% 25% - 6% 15% -

Other 82% 98% 100% 100% 100% 79% 32% 53% 95% 100% 100% 100% 2% 10% 90% - - - 74% 53% 92% 68% 50% 91%

Vegetation/Animal - - - - - - 0% 0% - - - - 29% 1% 10% - - - 3% 0% - 5% 0% 4%

Weather/Fire/Earthquake - - - - - 21% 4% 4% - - - - - - - 100% 100% - - - - 3% 5% -

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

DEALER(12KV) - Customers: 1,652 22.7 0.8 1.5 41.7 0.1 3.2 127.0 1.0 1.2 8.5 0.0 2.3 6.2 0.7 - 0.1 0.0 - 1.2 0.0 - 16.0 0.8 2.3

3rd Party - - - - - 25% 1% 4% - - - 32% 1% 0% - - - - - - - 0% 0% 32%

Equipment Failure 69% 92% - 93% 63% - 91% 77% - 1% 4% 32% 19% 0% - 100% 100% - 78% 56% - 14% 1% 32%

Operation - - - 7% 35% 31% 0% 1% - 99% 94% 37% 75% 99% - - - - 22% 44% - 83% 99% 37%

Other 8% 3% 100% - - 12% 8% 18% 100% 1% 2% - - - - - - - - - - 0% 0% -

Vegetation/Animal 23% 5% - 1% 1% 31% - - - - - - 5% 0% - - - - - - - 2% 0% -

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

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

DESOLATE(12KV) - Customers: 558 135.1 2.0 2.4 741.1 5.3 6.4 24.3 1.0 3.5 38.8 2.1 1.0 101.0 0.4 6.1 18.2 0.0 1.0 5.6 0.0 1.1 163.5 2.6 9.2

3rd Party - - - 10% 19% 31% - - - - - - - - 16% - - - - - - - - 11%

Equipment Failure 27% 51% - 27% 24% - 38% 3% - 50% 5% - 71% 68% - 41% 69% - 82% 77% - 63% 17% -

Operation - - - 10% 19% - 50% 96% 28% 50% 95% - - - - - - - 9% 15% - 12% 78% -

Other 73% 49% 100% 43% 19% 53% 12% 2% 44% - - 100% 19% 20% 77% 59% 31% 100% 9% 8% 100% 19% 4% 85%

Vegetation/Animal - - - - - 16% - - - - - - - - - - - - - - - - - -

Weather/Fire/Earthquake - - - 10% 19% - - - 29% - - - 9% 12% 7% - - - - - - 6% 2% 4%

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

Reliability Histories for Individual Circuits Serving San Bernardino District 1 - 7 of 30

2016 2017 2018 1st Qtr 2019 2nd Qtr 2019 3rd Qtr 2019 4th Qtr 2019 2019

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Page 28: PowerPoint Presentation - SCE...Our Grid To deliver power safely, reliably and affordably, we monitor and maintain a vast electricity system. 730,000 Transformers 119,000 Miles of

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

DICE(33KV) - Customers: 2 329.6 2.0 - 1394.0 3.0 3.0 968.1 1.4 - - - - - - - - - - 338.0 3.3 0.7 338.0 3.3 0.7

3rd Party - - - - - - 19% 50% - - - - - - - - - - - - - - - -

Equipment Failure 98% 50% - 46% 33% - - - - - - - - - - - - - 92% 60% - 92% 60% -

Operation 2% 50% - 25% 33% 33% - - - - - - - - - - - - 8% 40% - 8% 40% -

Other - - - 29% 33% 67% 81% 50% - - - - - - - - - - - - 100% - - 100%

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

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

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

DYSON(33KV) - Customers: 1 - - - 26.0 1.0 2.0 22.0 1.0 4.0 - - - - - - - - - - - - - - -

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

Equipment Failure - - - 100% 100% - - - 25% - - - - - - - - - - - - - - -

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

Other - - - - - 100% - - 75% - - - - - - - - - - - - - - -

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

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

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

EARTH(12KV) - Customers: 27 996.9 1.2 2.8 981.8 1.5 2.9 577.4 1.3 1.0 685.3 1.1 2.7 240.8 0.2 1.7 97.6 0.2 - 249.6 1.1 - 1273.4 2.5 4.3

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

Equipment Failure 6% 6% - - - - 100% 100% - 61% 71% - 100% 100% - 88% 83% - 100% 100% - 78% 87% -

Operation - - - 86% 88% - - - - - - - - - - - - - - - - - - -

Other 32% 63% 100% 14% 13% 100% - - 100% - - 73% - - 100% 12% 17% - - - - 1% 1% 83%

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

Weather/Fire/Earthquake 62% 31% - - - - - - - 39% 29% 27% - - - - - - - - - 21% 12% 17%

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

EXPRESS(33KV) - Customers: 3 925.0 3.0 7.0 - - 1.0 - - 1.0 - - - - - - - - - - - - - - -

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

Equipment Failure 99% 67% 14% - - - - - - - - - - - - - - - - - - - - -

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

Other 1% 33% 86% - - 100% - - 100% - - - - - - - - - - - - - - -

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

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

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

Reliability Histories for Individual Circuits Serving San Bernardino District 1 - 8 of 30

2016 2017 2018 1st Qtr 2019 2nd Qtr 2019 3rd Qtr 2019 4th Qtr 2019 2019

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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

FAIRBURN(12KV) - Customers: 1,618 - - - 51.2 0.4 2.0 0.1 0.0 0.6 135.6 1.0 4.0 74.9 1.0 1.0 1.5 0.0 1.0 - - 1.0 212.0 2.0 7.0

3rd Party - - - - - - - - - - - - - - - 22% 33% 100% - - - 0% 0% 14%

Equipment Failure - - - - - - - - - - - - - - - 58% 33% - - - - 0% 0% -

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

Other - - - 100% 100% 100% - - 100% - - - 100% 100% 100% - - - - - 100% 35% 50% 29%

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

Weather/Fire/Earthquake - - - - - - - - - 100% 100% 100% - - - 20% 33% - - - - 64% 50% 57%

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

FLOODGATE(12KV) - Customers: 1,974 44.4 0.7 5.0 31.9 1.1 1.8 13.1 0.2 2.9 1.3 0.0 0.1 19.9 0.9 - 0.0 0.0 - 2.0 0.0 0.8 23.3 0.9 1.0

3rd Party 9% 5% 40% 10% 6% 100% 85% 92% 7% - - - 99% 100% - - - - - - 100% 84% 98% 87%

Equipment Failure 91% 95% 20% 35% 2% - 10% 7% 12% 94% 93% - 1% 0% - - - - 100% 100% - 15% 2% -

Operation - - - 0% 0% - - - - 6% 7% 100% - - - 100% 100% - - - - 1% 0% 13%

Other - - - 55% 92% - 4% 1% 81% - - - - - - - - - - - - - - -

Vegetation/Animal - - 40% - - - - - - - - - - - - - - - - - - - - -

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

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

FLUE(12KV) - Customers: 1,803 32.0 0.1 1.4 7.1 0.0 1.0 94.0 1.4 2.0 25.6 0.4 1.4 42.9 0.3 0.4 26.6 0.1 - 1.1 0.0 - 96.2 0.8 1.8

3rd Party - - 30% - - - 0% 0% 100% 14% 11% - 90% 66% 100% 95% 98% - - - - 70% 43% 22%

Equipment Failure 18% 59% - 50% 28% - 99% 99% - 42% 17% - 6% 4% - 5% 1% - 94% 75% - 16% 11% -

Operation 0% 4% - 9% 9% - 0% 1% - 1% 0% - 2% 27% - 0% 1% - 6% 25% - 1% 9% -

Other - - - - - 100% 1% 1% - 42% 72% 100% 1% 2% - - - - - - - 12% 38% 78%

Vegetation/Animal - - 70% 41% 64% - - - - - - - - - - - - - - - - - - -

Weather/Fire/Earthquake 82% 38% - - - - - - - - - - - - - - - - - - - - - -

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

GAMBLER(12KV) - Customers: 1,457 131.2 1.0 0.5 57.6 0.6 1.8 66.4 1.3 0.7 11.5 0.1 - 2.8 0.0 - 6.9 0.0 - 6.9 0.1 0.6 28.1 0.3 0.6

3rd Party - - - 94% 99% 36% 2% 0% - - - - 7% 10% - - - - - - - 1% 1% -

Equipment Failure 81% 70% - 5% 1% - 93% 98% 85% 84% 70% - 20% 20% - 34% 25% - 12% 6% - 48% 26% -

Operation 10% 16% - 1% 0% - - - - 6% 19% - - - - 63% 71% - 88% 94% - 39% 66% -

Other - - 41% - - 8% 4% 1% 15% 10% 11% - 69% 50% - 2% 4% - - - 100% 12% 6% 100%

Vegetation/Animal 1% 0% - - - 56% - - - - - - 3% 20% - - - - - - - 0% 1% -

Weather/Fire/Earthquake 8% 14% 59% - - - - - - - - - - - - - - - - - - - - -

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

Reliability Histories for Individual Circuits Serving San Bernardino District 1 - 9 of 30

2016 2017 2018 1st Qtr 2019 2nd Qtr 2019 3rd Qtr 2019 4th Qtr 2019 2019

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

GOLDPAN(12KV) - Customers: 1,585 - - - 5.2 0.0 1.9 26.0 0.1 - 0.5 0.0 - 26.5 0.9 0.1 - - 1.0 - - - 27.0 0.9 1.1

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

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

Operation - - - - - - - - - - - - 100% 100% 100% - - - - - - 98% 100% 12%

Other - - - - - - - - - - - - - - - - - 100% - - - - - 88%

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

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

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

GREER(12KV) - Customers: 425 187.6 3.5 6.7 339.4 8.5 10.5 41.6 0.5 4.5 31.9 1.0 - 17.5 0.1 - - - 2.0 - - 2.0 49.4 1.1 3.9

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

Equipment Failure 11% 29% 30% 40% 24% - 3% 0% - - - - 3% 3% - - - - - - - 1% 0% -

Operation - - - 8% 6% - - - - - - - - - - - - - - - - - - -

Other 83% 42% 70% 49% 59% 100% 59% 50% 61% 100% 100% - 97% 97% - - - 50% - - 100% 99% 100% 75%

Vegetation/Animal - - - 3% 12% - - - 22% - - - - - - - - 50% - - - - - 25%

Weather/Fire/Earthquake 6% 29% - - - - 38% 50% 17% - - - - - - - - - - - - - - -

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

HACKMAN(33KV) - Customers: 10 1175.8 3.2 2.6 593.8 2.1 2.3 278.2 1.2 1.0 19.2 1.7 0.9 462.7 4.9 3.8 2063.4 4.1 1.3 163.4 0.7 - 2708.6 11.5 6.0

3rd Party - - 39% - - - - - - - - - - - - - - - - - - - - -

Equipment Failure 15% 24% - 39% 47% 95% - - - 31% 44% - - - 25% - - - 100% 100% - 6% 13% 16%

Operation 45% 52% - - - - 76% 36% - - - - 25% 19% - 6% 23% 17% - - - 9% 17% 4%

Other 41% 24% 61% - - - 24% 64% 100% - - 100% - - 50% 94% 77% 83% - - - 71% 28% 65%

Vegetation/Animal - - - 61% 53% 5% - - - 69% 56% - - - - - - - - - - 0% 8% -

Weather/Fire/Earthquake - - - - - - - - - - - - 75% 81% 25% - - - - - - 13% 35% 16%

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

HARDROCK(12KV) - Customers: 185 53.9 1.0 6.0 87.6 0.1 7.9 136.3 3.0 4.0 234.1 3.3 14.3 1.9 0.0 - 1.3 0.0 1.0 16.8 1.0 - 254.0 4.3 15.3

3rd Party - - - 100% 100% 11% - - - - - - - - - - - - - - - - - -

Equipment Failure 100% 100% 17% - - - - - - 67% 60% 41% 100% 100% - 100% 100% - - - - 63% 46% 38%

Operation - - - - - - - - - - - - - - - - - - 41% 3% - 3% 1% -

Other - - 66% - - 76% 35% 33% 50% 32% 35% 54% - - - - - 100% - - - 30% 26% 57%

Vegetation/Animal - - - - - - 65% 67% 50% - - - - - - - - - 59% 97% - 4% 23% -

Weather/Fire/Earthquake - - 17% - - 13% - - - 0% 5% 6% - - - - - - - - - 0% 4% 5%

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

Reliability Histories for Individual Circuits Serving San Bernardino District 1 - 10 of 30

2016 2017 2018 1st Qtr 2019 2nd Qtr 2019 3rd Qtr 2019 4th Qtr 2019 2019

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HECTOR(12KV) - Customers: 361 185.6 1.2 3.2 834.1 8.2 6.3 507.9 3.1 2.7 90.6 0.5 0.9 89.3 1.4 1.7 67.2 1.3 - 193.3 0.2 0.0 440.4 3.5 2.6

3rd Party - - 31% - - 32% - - - - - - 3% 23% 38% 20% 8% - 18% 85% - 12% 18% 26%

Equipment Failure 41% 91% - 23% 13% - 26% 4% 0% 22% 6% - 25% 2% - 1% 0% - 82% 15% 100% 46% 3% 0%

Operation 6% 3% - 11% 13% 16% 8% 65% 37% - - - 8% 2% - 3% 1% - - - - 2% 1% -

Other 36% 4% 69% 52% 53% 48% - - 52% 41% 84% 100% 64% 72% 62% 14% 8% - - - - 24% 45% 74%

Vegetation/Animal - - - 1% 9% 5% 13% 23% 12% - - - - - - - - - - - - - - -

Weather/Fire/Earthquake 16% 2% - 13% 12% - 54% 8% - 38% 10% - - - - 62% 83% - - - - 17% 33% -

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

HELIOS(12KV) - Customers: 505 270.8 3.4 4.6 1220.8 6.4 9.7 50.9 1.7 9.1 14.6 0.0 1.0 0.1 0.0 2.0 33.2 1.8 0.6 32.7 0.1 - 80.6 1.9 3.6

3rd Party 1% 0% 14% - - 21% - - 0% - - - - - 50% - - 100% - - - - - 45%

Equipment Failure 80% 70% 13% 33% 28% - 24% 1% - 1% 10% - - - - 100% 100% - 98% 98% - 81% 99% -

Operation - - - 7% 31% 10% 41% 60% 17% - - - 100% 100% - - - - 2% 2% - 1% 0% -

Other 0% 0% 72% 7% 15% 59% 6% 1% 72% 99% 90% 100% - - 50% - - - - - - 18% 1% 55%

Vegetation/Animal 1% 0% - - - 10% - - - - - - - - - - - - - - - - - -

Weather/Fire/Earthquake 17% 29% - 53% 26% - 29% 37% 11% - - - - - - - - - - - - - - -

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

HIDDEN(12KV) - Customers: 2 145.1 1.1 2.2 3432.0 4.0 3.0 155.0 2.0 1.0 - - - - - - 2226.1 1.0 - - - - 2226.1 1.0 -

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

Equipment Failure - - - - - 33% - - - - - - - - - - - - - - - - - -

Operation - - - - - 33% - - - - - - - - - - - - - - - - - -

Other 100% 100% 100% 11% 25% 33% 5% 50% - - - - - - - - - - - - - - - -

Vegetation/Animal - - - 34% 25% - - - - - - - - - - - - - - - - - - -

Weather/Fire/Earthquake - - - 56% 50% - 95% 50% 100% - - - - - - 100% 100% - - - - 100% 100% -

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

HOUSING(12KV) - Customers: 1 - - - - - - - - - 24.0 1.0 - - - 1.0 1394.6 3.0 1.0 - - - 1418.6 4.0 2.0

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

Equipment Failure - - - - - - - - - - - - - - - 100% 100% - - - - 98% 75% -

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

Other - - - - - - - - - 100% 100% - - - 100% - - 100% - - - 2% 25% 100%

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

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

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

Reliability Histories for Individual Circuits Serving San Bernardino District 1 - 11 of 30

2016 2017 2018 1st Qtr 2019 2nd Qtr 2019 3rd Qtr 2019 4th Qtr 2019 2019

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HUTT(12KV) - Customers: 3 793.8 3.5 1.8 590.3 3.9 2.1 - - 5.2 - - - - - - - - - 15.1 0.9 - 15.1 0.9 -

3rd Party - - - - - - - - 40% - - - - - - - - - - - - - - -

Equipment Failure 58% 67% - 29% 24% 44% - - - - - - - - - - - - 100% 100% - 100% 100% -

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

Other 42% 33% 100% 71% 76% 56% - - 60% - - - - - - - - - - - - - - -

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

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

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

INN(12KV) - Customers: 190 18.5 0.0 7.1 1198.8 4.3 10.9 1296.6 3.7 4.3 17.0 0.4 1.6 4.5 0.4 2.7 28.0 0.1 - - - 0.1 49.4 0.9 4.4

3rd Party - - - 5% 30% - - - 47% - - - - - - 100% 100% - - - - 57% 10% -

Equipment Failure 100% 100% - 38% 23% - 19% 31% 46% 17% 6% - - - - - - - - - - 6% 3% -

Operation - - - - - 9% 6% 12% - - - - - - - - - - - - - - - -

Other - - 100% 54% 33% 78% 1% 3% 7% 83% 94% 100% 100% 100% 96% - - - - - 100% 37% 87% 98%

Vegetation/Animal - - - - - 9% 69% 27% - - - - - - - - - - - - - - - -

Weather/Fire/Earthquake - - - 3% 14% 4% 4% 27% - - - - - - 4% - - - - - - - - 2%

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

ISNER(33KV) - Customers: 6 285.0 2.0 2.4 122.6 2.2 1.8 473.2 1.2 1.0 - - 1.5 53.0 1.2 4.0 - - - - - 1.0 53.0 1.2 6.5

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

Equipment Failure - - 42% 24% 73% 22% 37% 71% - - - - - - - - - - - - - - - -

Operation - - - - - 56% 63% 29% - - - - 51% 14% - - - - - - - 51% 14% -

Other 64% 70% - - - - - - 100% - - - - - - - - - - - 100% - - 15%

Vegetation/Animal 36% 30% 58% 76% 27% 22% - - - - - 100% - - 50% - - - - - - - - 54%

Weather/Fire/Earthquake - - - - - - - - - - - - 49% 86% 50% - - - - - - 49% 86% 31%

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

JEEP(12KV) - Customers: 2,070 863.2 5.4 7.5 170.8 2.1 7.1 36.4 1.8 3.4 24.2 1.0 2.4 2.3 0.0 1.4 16.0 1.1 - 2942.3 8.9 5.1 2984.8 11.1 8.9

3rd Party - - 13% - - 14% - - 29% - - - - - - - - - - - - - - -

Equipment Failure 66% 53% 13% 2% 0% 14% 2% 0% - 100% 100% 42% - - - 12% 2% - 9% 34% 30% 10% 37% 28%

Operation 1% 20% - 16% 51% - 79% 77% 29% - - - 100% 100% - 44% 9% - 5% 27% - 6% 23% -

Other 13% 18% 62% 64% 24% 34% 19% 23% 12% - - 58% - - 100% - - - 34% 17% 70% 34% 13% 72%

Vegetation/Animal - - 13% - - - - - 29% - - - - - - 44% 90% - - - - 0% 9% -

Weather/Fire/Earthquake 19% 9% - 18% 25% 38% - - - - - - - - - - - - 52% 22% - 51% 18% -

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

Reliability Histories for Individual Circuits Serving San Bernardino District 1 - 12 of 30

2016 2017 2018 1st Qtr 2019 2nd Qtr 2019 3rd Qtr 2019 4th Qtr 2019 2019

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JET SKI(12KV) - Customers: 407 1428.9 4.0 4.0 418.5 5.0 2.0 474.6 3.2 - - - - 0.7 0.0 - 1434.5 1.0 - - - - 1435.2 1.0 -

3rd Party 5% 25% - - - - 49% 31% - - - - - - - - - - - - - - - -

Equipment Failure 86% 50% 25% - - 50% 2% 4% - - - - - - - - - - - - - - - -

Operation 0% 0% - 7% 40% - 1% 3% - - - - 100% 100% - - - - - - - 0% 3% -

Other 9% 25% 75% 88% 20% 50% 4% 31% - - - - - - - - - - - - - - - -

Vegetation/Animal - - - 4% 20% - - - - - - - - - - - - - - - - - - -

Weather/Fire/Earthquake - - - 2% 20% - 44% 31% - - - - - - - 100% 100% - - - - 100% 97% -

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

JOBURG(2.4KV) - Customers: 252 318.6 3.0 2.0 236.8 1.0 1.0 0.5 0.0 - - - - - - - - - 2.0 - - - - - 2.0

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

Equipment Failure 38% 34% - - - - - - - - - - - - - - - - - - - - - -

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

Other 62% 66% 100% 100% 100% 100% 100% 100% - - - - - - - - - 100% - - - - - 100%

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

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

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

JUDY(12KV) - Customers: 1,008 252.9 2.1 4.0 221.1 3.8 2.0 244.8 3.3 4.0 57.4 1.6 2.0 104.7 0.3 - - - 1.0 106.7 0.6 0.6 268.9 2.6 3.6

3rd Party - - - 65% 59% - 11% 30% - - - - - - - - - - - - - - - -

Equipment Failure - - - - - - 70% 31% 75% 59% 60% 50% - - - - - - 35% 50% 100% 26% 50% 45%

Operation - - 25% 14% 7% 36% 16% 9% - 41% 40% - - - - - - - 65% 50% - 35% 38% -

Other 100% 100% 50% 21% 33% 64% 3% 30% 25% - - 50% - - - - - 100% - - - - - 55%

Vegetation/Animal - - 25% - - - - - - - - - 1% 4% - - - - - - - 0% 0% -

Weather/Fire/Earthquake - - - - - - - - - - - - 99% 96% - - - - - - - 38% 11% -

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

KELLY(4.16KV) - Customers: 154 - - 2.1 124.9 1.6 6.0 81.4 1.2 1.0 3.4 0.0 - 205.5 1.1 1.0 - - - 0.8 0.0 - 209.7 1.2 1.0

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

Equipment Failure - - - 100% 100% 50% 13% 14% - 88% 50% - 1% 13% 1% - - - - - - 2% 14% 1%

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

Other - - 47% - - 50% 87% 86% 100% 12% 50% - 99% 87% 99% - - - - - - 97% 86% 99%

Vegetation/Animal - - - - - - - - - - - - - - - - - - 100% 100% - 0% 1% -

Weather/Fire/Earthquake - - 49% - - - - - - - - - - - - - - - - - - - - -

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

Reliability Histories for Individual Circuits Serving San Bernardino District 1 - 13 of 30

2016 2017 2018 1st Qtr 2019 2nd Qtr 2019 3rd Qtr 2019 4th Qtr 2019 2019

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

KENO(12KV) - Customers: 2,599 31.6 0.2 4.2 127.9 1.5 16.0 25.5 0.3 1.2 101.4 1.1 8.0 1.1 0.0 - 3.5 0.0 - 0.3 0.0 - 106.4 1.2 8.0

3rd Party - - - 45% 33% - 0% 1% 17% 2% 1% - 70% 85% - 5% 3% - - - - 3% 2% -

Equipment Failure 34% 14% - 4% 2% - 98% 99% - 95% 98% 37% 29% 13% - 83% 41% - 21% 20% - 94% 96% 37%

Operation 56% 69% - 0% 0% - 1% 1% - 2% 0% - 1% 3% - 9% 51% - 27% 60% - 3% 2% -

Other 1% 2% 100% 51% 65% 94% 0% 0% 83% - - 1% - - - - - - - - - - - 1%

Vegetation/Animal 10% 15% - - - 6% - - - - - - - - - - - - 52% 20% - 0% 0% -

Weather/Fire/Earthquake - - - - - - 1% 0% - 1% 0% 62% - - - 3% 5% - - - - 1% 0% 62%

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

KENWORTH(12KV) - Customers: 2,300 25.5 0.1 1.0 186.0 1.8 1.6 0.8 0.0 2.1 2.1 0.0 - 0.4 0.0 0.0 1.5 0.0 2.1 0.1 0.0 1.1 4.1 0.0 3.3

3rd Party - - - - - - 27% 29% - - - - 44% 95% 100% 42% 9% 94% - - - 20% 52% 62%

Equipment Failure 90% 63% - 94% 92% 85% 73% 71% - 16% 4% - 56% 5% - 2% 4% - - - - 14% 5% -

Operation - - - 1% 8% - - - - 81% 92% - - - - 54% 78% - 100% 100% - 64% 40% -

Other 10% 37% 100% 4% 1% 15% - - 100% - - - - - - - - 6% - - 100% - - 38%

Vegetation/Animal - - - - - - - - - 2% 4% - - - - 3% 9% - - - - 2% 3% -

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

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

KOALA(12KV) - Customers: 2,278 0.6 0.0 2.0 78.5 1.2 3.8 71.5 0.9 4.1 - - 3.0 1.9 0.0 0.0 0.1 0.0 - 3.8 0.1 - 5.7 0.1 3.0

3rd Party 4% 33% 100% - - - - - - - - - - - 100% - - - - - - - - 0%

Equipment Failure 96% 67% - 2% 2% - 5% 1% - - - - 100% 100% - 100% 100% - - - - 34% 6% -

Operation - - - 4% 2% - - - 26% - - - - - - - - - - - - - - -

Other - - - - - 52% 94% 99% 74% - - 100% - - - - - - 100% 100% - 66% 94% 100%

Vegetation/Animal - - - 7% 14% 22% - - - - - - - - - - - - - - - - - -

Weather/Fire/Earthquake - - - 87% 81% 26% 1% 0% - - - - - - - - - - - - - - - -

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

LARK(2.4KV) - Customers: 719 8.0 1.0 - 669.7 1.0 1.0 3698.9 6.4 2.0 726.4 2.2 4.2 6.1 0.1 - - - - 5.9 1.0 1.0 738.4 3.3 5.2

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

Equipment Failure - - - 100% 100% - 61% 68% 100% 97% 90% 98% 52% 60% - - - - 100% 100% - 96% 93% 79%

Operation 100% 100% - - - - - - - 3% 10% 2% 35% 22% - - - - - - - 4% 7% 2%

Other - - - - - 100% 39% 32% - - - - 13% 18% - - - - - - 100% 0% 0% 19%

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

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

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

Reliability Histories for Individual Circuits Serving San Bernardino District 1 - 14 of 30

2016 2017 2018 1st Qtr 2019 2nd Qtr 2019 3rd Qtr 2019 4th Qtr 2019 2019

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CircuitHistory15SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI

LAVA(12KV) - Customers: 39 13960.6 17.3 17.2 8859.9 10.5 13.2 3378.7 7.1 5.7 217.5 1.0 1.0 632.4 1.0 - 1758.3 5.0 7.6 846.2 1.0 2.0 3454.5 8.0 10.6

3rd Party 8% 11% 5% - - - - - 18% - - - - - - - - - - - - - - -

Equipment Failure 54% 29% 12% 13% 17% 28% 72% 58% 11% - - - 100% 100% - - - - 100% 100% - 43% 25% -

Operation - - - 5% 19% - 25% 28% - - - - - - - - - 13% - - - - - 9%

Other 28% 29% 47% 30% 18% 66% - - 71% 100% 100% 100% - - - 80% 60% 47% - - 100% 47% 50% 62%

Vegetation/Animal 5% 17% 12% - - - - - - - - - - - - - - - - - - - - -

Weather/Fire/Earthquake 4% 14% 25% 51% 46% 6% 3% 14% - - - - - - - 20% 40% 39% - - - 10% 25% 28%

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

LINNET(2.4KV) - Customers: 712 7.9 1.0 1.0 658.7 1.0 1.0 3331.3 2.9 - 3.4 0.0 5.0 - - - 10.9 0.0 - 5.9 1.0 1.0 20.2 1.0 6.0

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

Equipment Failure - - - 100% 100% - 53% 34% - - - - - - - 42% 55% - 100% 100% - 52% 98% -

Operation 100% 100% - - - - - - - - - - - - - 58% 45% - - - - 31% 2% -

Other - - 100% - - 100% 47% 66% - - - - - - - - - - - - 100% - - 16%

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

Weather/Fire/Earthquake - - - - - - - - - 100% 100% 100% - - - - - - - - - 17% 0% 84%

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

LOCKHART(33KV) - Customers: 10 802.5 3.4 2.4 2677.8 3.3 2.5 - - 2.0 - - - - - - - - - 83.5 1.0 - 83.5 1.0 -

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

Equipment Failure 48% 54% 7% 36% 25% 46% - - - - - - - - - - - - 100% 100% - 100% 100% -

Operation 4% 23% - - - - - - - - - - - - - - - - - - - - - -

Other 49% 23% 93% 64% 75% 54% - - 100% - - - - - - - - - - - - - - -

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

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

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

LOTTO(12KV) - Customers: 2,461 49.0 0.2 0.8 61.8 0.8 3.7 18.6 0.1 1.1 69.5 0.7 1.2 2.7 0.0 - 7.9 0.1 - 160.2 2.3 - 240.4 3.1 1.2

3rd Party 87% 77% 39% 7% 1% 13% 1% 3% - - - - - - - - - - - - - - - -

Equipment Failure 4% 7% - 23% 10% - 65% 52% 45% 72% 63% 46% 54% 52% - 57% 27% - 53% 45% - 59% 49% 46%

Operation 1% 1% - 14% 73% 7% - - 9% 0% 0% - 43% 42% - 2% 11% - 1% 11% - 2% 8% -

Other 8% 16% 61% 57% 15% 54% 4% 9% 23% 27% 36% 38% 3% 6% - - - - - - - 8% 9% 38%

Vegetation/Animal - - - - - 27% 9% 3% - - - - - - - - - - - - - - - -

Weather/Fire/Earthquake - - - - - - 20% 32% 23% 1% 0% 15% - - - 40% 62% - 45% 44% - 32% 34% 15%

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

Reliability Histories for Individual Circuits Serving San Bernardino District 1 - 15 of 30

2016 2017 2018 1st Qtr 2019 2nd Qtr 2019 3rd Qtr 2019 4th Qtr 2019 2019

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CircuitHistory16SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI

LUZ(33KV) - Customers: 5 - - - - - 3.0 87.8 0.2 - - - 1.0 - - - - - - - - - - - 1.0

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

Equipment Failure - - - - - - - - - - - - - - - - - - - - - - - -

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

Other - - - - - 67% - - - - - 100% - - - - - - - - - - - 100%

Vegetation/Animal - - - - - 33% - - - - - - - - - - - - - - - - - -

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

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

MACK(12KV) - Customers: 1,363 - - - - - - 1.0 0.0 - - - - - - - - - - 5.3 0.0 2.0 5.3 0.0 2.0

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

Equipment Failure - - - - - - - - - - - - - - - - - - - - - - - -

Operation - - - - - - 100% 100% - - - - - - - - - - 100% 100% 50% 100% 100% 50%

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

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

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

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

MARL(16KV) - Customers: 18 832.5 3.2 2.3 891.3 2.1 1.9 48.7 0.1 3.0 - - - - - 1.0 49.4 0.3 0.3 - - - 49.4 0.3 1.3

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

Equipment Failure 2% 2% 43% 67% 46% - - - - - - - - - - - - - - - - - - -

Operation 22% 22% - 17% 49% - - - - - - - - - - 100% 100% 100% - - - 100% 100% 23%

Other - - - - - 67% 100% 100% 78% - - - - - 100% - - - - - - - - 77%

Vegetation/Animal 62% 57% 29% - - - - - - - - - - - - - - - - - - - - -

Weather/Fire/Earthquake 15% 20% 29% 16% 5% 33% - - 22% - - - - - - - - - - - - - - -

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

MAUEL(12KV) - Customers: 1,157 230.2 0.9 4.6 162.3 2.2 0.4 137.8 1.8 2.3 5.6 0.2 - 3.8 0.0 - - - - - - - 9.4 0.3 -

3rd Party 32% 72% 8% - - - 1% 1% - 29% 48% - - - - - - - - - - 17% 44% -

Equipment Failure 57% 14% - 28% 7% - 37% 16% 42% 7% 2% - 100% 100% - - - - - - - 45% 9% -

Operation 1% 2% - 4% 1% - 5% 36% 15% 64% 50% - - - - - - - - - - 38% 47% -

Other 9% 12% 92% 4% 46% 100% - - 42% - - - - - - - - - - - - - - -

Vegetation/Animal - - - - - - 57% 47% - - - - - - - - - - - - - - - -

Weather/Fire/Earthquake - - - 64% 47% - - - - - - - - - - - - - - - - - - -

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

Reliability Histories for Individual Circuits Serving San Bernardino District 1 - 16 of 30

2016 2017 2018 1st Qtr 2019 2nd Qtr 2019 3rd Qtr 2019 4th Qtr 2019 2019

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CircuitHistory17SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI

MC CASLIN(4.16KV) - Customers: 57 - - - 1092.9 1.0 2.8 476.8 1.5 1.0 - - - - - - - - - - - - - - -

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

Equipment Failure - - - 0% 2% - 44% 76% - - - - - - - - - - - - - - - -

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

Other - - - 100% 98% 100% 56% 24% 100% - - - - - - - - - - - - - - -

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

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

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

MC CLARY(4.16KV) - Customers: 110 440.9 7.7 3.0 445.3 3.8 10.8 209.2 3.7 10.3 402.0 5.2 9.3 61.5 1.4 2.4 36.0 0.3 0.6 - - 0.9 499.5 6.8 13.2

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

Equipment Failure 73% 74% - 87% 54% - 55% 46% 39% 38% 26% 12% 62% 24% 1% 100% 100% 4% - - - 46% 28% 9%

Operation 5% 13% - - - 9% - - - 0% 1% 0% - - 13% - - - - - - 0% 1% 2%

Other - - 67% 13% 46% 82% 12% 27% 61% 40% 60% 73% 1% 1% 43% - - 48% - - 100% 32% 45% 68%

Vegetation/Animal 22% 13% 33% - - 9% 34% 27% - - - - 37% 75% 43% - - 48% - - - 5% 15% 10%

Weather/Fire/Earthquake - - - - - - - - - 22% 14% 14% - - - - - - - - - 18% 11% 10%

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

MEADOWLARK(12KV) - Customers: 137 8.0 1.0 - 563.8 0.9 3.0 1094.5 2.0 - - - - - - - 63.8 0.2 - 5.9 1.0 1.0 69.7 1.2 1.0

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

Equipment Failure - - - 100% 100% - 6% 53% - - - - - - - - - - 100% 100% - 8% 85% -

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

Other - - - - - 100% 94% 47% - - - - - - - - - - - - 100% - - 100%

Vegetation/Animal - - - - - - - - - - - - - - - 100% 100% - - - - 92% 15% -

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

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

MELODY(25KV) - Customers: 1,886 651.7 2.0 1.6 359.4 1.2 0.4 366.2 1.1 1.6 35.0 0.1 0.3 13.0 0.1 1.1 142.4 0.4 0.1 187.2 2.4 1.1 377.6 2.9 2.7

3rd Party 16% 3% - 0% 0% - - - - 1% 1% 18% - - - 6% 8% - - - - 2% 1% 2%

Equipment Failure 27% 39% 18% 19% 10% 4% 41% 52% 4% 81% 73% - 6% 5% 89% 23% 20% - 90% 86% 92% 61% 74% 75%

Operation 2% 1% 36% 1% 3% - 1% 5% - - - - 1% 1% - 1% 0% - 0% 0% - 0% 0% -

Other 16% 36% 47% 35% 39% 73% 45% 35% 96% 18% 25% 82% 22% 22% 6% 61% 62% 100% 5% 5% 8% 28% 13% 21%

Vegetation/Animal 4% 1% - 26% 41% 23% 2% 5% - 1% 0% - 71% 72% 6% 4% 5% - 4% 9% - 6% 10% 2%

Weather/Fire/Earthquake 34% 19% - 19% 7% - 11% 3% - - - - - - - 5% 6% - - - - 2% 1% -

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

Reliability Histories for Individual Circuits Serving San Bernardino District 1 - 17 of 30

2016 2017 2018 1st Qtr 2019 2nd Qtr 2019 3rd Qtr 2019 4th Qtr 2019 2019

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MIRROR(12KV) - Customers: 1,420 45.5 0.3 - 24.1 0.2 - 66.6 0.5 1.0 - - 1.0 - - - 3.8 0.0 - - - 1.0 3.8 0.0 2.0

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

Equipment Failure 74% 48% - - - - 100% 100% 100% - - - - - - 100% 100% - - - - 100% 100% -

Operation 26% 52% - 100% 100% - - - - - - - - - - - - - - - - - - -

Other - - - - - - - - - - - - - - - - - - - - 100% - - 50%

Vegetation/Animal - - - - - - - - - - - 100% - - - - - - - - - - - 50%

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

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

MONTARA(33KV) - Customers: 1 - - - 25.0 1.0 1.0 169.1 3.0 2.0 - - - - - - - - 1.0 16.0 1.0 - 16.0 1.0 1.0

3rd Party - - - - - - 8% 33% 50% - - - - - - - - - - - - - - -

Equipment Failure - - - 100% 100% - 92% 67% 50% - - - - - - - - - 100% 100% - 100% 100% -

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

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

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

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

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

MULE CANYON(12KV) - Customers: 351 123.2 3.0 9.0 275.0 5.0 9.8 25.0 0.5 2.0 34.1 1.0 - - - - 21.3 0.3 1.0 50.4 0.2 3.7 105.8 1.4 4.7

3rd Party - - - 4% 2% - - - - - - - - - - - - - - - - - - -

Equipment Failure 40% 35% 45% 40% 20% - 100% 100% - - - - - - - - - - 91% 92% 46% 43% 11% 36%

Operation - - - 1% 0% 18% - - - - - - - - - 100% 100% - 9% 8% - 24% 19% -

Other 51% 33% 55% 51% 57% 82% - - 50% 100% 100% - - - - - - 100% - - 54% 32% 70% 64%

Vegetation/Animal - - - 4% 20% - - - 50% - - - - - - - - - - - - - - -

Weather/Fire/Earthquake 9% 33% - - - - - - - - - - - - - - - - - - - - - -

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

NASSAU(12KV) - Customers: 1,771 2.5 0.0 - 450.5 3.5 0.7 119.6 1.0 - - - - - - - - - - - - - - - -

3rd Party - - - 6% 4% - - - - - - - - - - - - - - - - - - -

Equipment Failure - - - 82% 83% - 100% 100% - - - - - - - - - - - - - - - -

Operation 100% 100% - 10% 4% - - - - - - - - - - - - - - - - - - -

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

Vegetation/Animal - - - 1% 9% 100% - - - - - - - - - - - - - - - - - -

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

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

Reliability Histories for Individual Circuits Serving San Bernardino District 1 - 18 of 30

2016 2017 2018 1st Qtr 2019 2nd Qtr 2019 3rd Qtr 2019 4th Qtr 2019 2019

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NEBO(12KV) - Customers: 37 - - - - - 0.6 69.5 1.0 1.0 - - - - - - - - - - - - - - -

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

Equipment Failure - - - - - - - - - - - - - - - - - - - - - - - -

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

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

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

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

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

NIPTON(33KV) - Customers: 55 476.3 2.3 6.8 1398.6 4.2 17.1 237.7 1.1 7.3 1.7 0.2 7.3 150.8 0.4 3.3 135.3 0.7 0.3 131.4 0.5 0.5 419.1 1.8 11.5

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

Equipment Failure - - - 3% 1% 2% 2% 2% - - - 1% 100% 100% 24% 98% 97% - 68% 44% 100% 89% 73% 12%

Operation - - - 19% 36% 6% 89% 78% 59% - - - - - - - - - - - - - - -

Other 52% 74% 96% 77% 62% 93% 9% 21% 41% 100% 100% 95% - - 68% - - - 32% 56% - 10% 26% 81%

Vegetation/Animal - - 4% 1% 1% - - - - - - 4% - - 8% 2% 3% 100% - - - 1% 1% 7%

Weather/Fire/Earthquake 48% 26% - - - - - - - - - - - - - - - - - - - - - -

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

NOBLE(12KV) - Customers: 1 384.0 2.0 6.0 1164.0 5.0 3.0 - - 1.0 - - - 55.1 1.0 3.0 - - - 1626.0 1.0 - 1681.1 2.0 3.0

3rd Party - - - 2% 20% 33% - - - - - - - - - - - - - - - - - -

Equipment Failure 84% 50% 17% - - - - - - - - - 100% 100% 67% - - - - - - 3% 50% 67%

Operation - - 17% 31% 20% - - - - - - - - - - - - - - - - - - -

Other 16% 50% 17% 9% 20% 33% - - 100% - - - - - 33% - - - 100% 100% - 97% 50% 33%

Vegetation/Animal - - 17% - - - - - - - - - - - - - - - - - - - - -

Weather/Fire/Earthquake - - 33% 58% 40% 33% - - - - - - - - - - - - - - - - - -

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

OLANCHA(12KV) - Customers: 1,113 11.0 0.1 2.7 49.4 2.7 1.3 169.7 1.5 7.1 - - - 1.5 0.0 - 0.2 0.0 - - - - 1.7 0.0 -

3rd Party - - 37% - - - 97% 80% 44% - - - - - - - - - - - - - - -

Equipment Failure 11% 10% - 68% 74% - 3% 20% 56% - - - 100% 100% - - - - - - - 91% 80% -

Operation - - - 9% 0% - - - - - - - - - - 100% 100% - - - - 9% 20% -

Other - - - - - 76% - - - - - - - - - - - - - - - - - -

Vegetation/Animal 69% 85% - 24% 26% 24% - - - - - - - - - - - - - - - - - -

Weather/Fire/Earthquake 20% 5% 63% - - - - - - - - - - - - - - - - - - - - -

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

Reliability Histories for Individual Circuits Serving San Bernardino District 1 - 19 of 30

2016 2017 2018 1st Qtr 2019 2nd Qtr 2019 3rd Qtr 2019 4th Qtr 2019 2019

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CircuitHistory20SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI

OLD TRAILS(33KV) - Customers: 3 470.3 7.3 3.0 - - 3.3 314.3 2.0 6.0 186.1 3.2 2.9 17.1 1.1 2.1 - - 3.2 - - - 203.2 4.3 8.3

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

Equipment Failure 54% 59% - - - - - - 17% 21% 33% - - - - - - - - - - 19% 25% -

Operation 5% 14% - - - - - - - - - - - - - - - - - - - - - -

Other - - 67% - - 77% 78% 50% 83% 79% 67% 64% - - 50% - - 100% - - - 73% 50% 74%

Vegetation/Animal 41% 28% 33% - - 23% 22% 50% - - - - 100% 100% 50% - - - - - - 8% 25% 13%

Weather/Fire/Earthquake - - - - - - - - - - - 36% - - - - - - - - - - - 13%

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

PAPPAS(33KV) - Customers: 4 - - - 326.0 2.0 1.0 - - - - - 1.0 - - - - - - 82.0 1.0 - 82.0 1.0 1.0

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

Equipment Failure - - - 38% 50% - - - - - - - - - - - - - 100% 100% - 100% 100% -

Operation - - - 62% 50% - - - - - - - - - - - - - - - - - - -

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

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

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

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

PATIO(12KV) - Customers: 581 169.5 0.7 0.2 389.3 1.7 0.8 107.0 1.1 - - - - 11.9 0.1 - 5.5 0.1 0.3 - - - 17.4 0.2 0.3

3rd Party 37% 62% 100% - - - - - - - - - - - - 100% 100% - - - - 32% 41% -

Equipment Failure 3% 1% - - - - 6% 5% - - - - - - - - - - - - - - - -

Operation 59% 37% - 2% 4% 22% - - - - - - - - - - - - - - - - - -

Other - - - 1% 37% 50% - - - - - - - - - - - 100% - - - - - 100%

Vegetation/Animal - - - - - - 89% 92% - - - - 100% 100% - - - - - - - 68% 59% -

Weather/Fire/Earthquake - - - 97% 60% 28% 5% 3% - - - - - - - - - - - - - - - -

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

PENSTOCK(12KV) - Customers: 1,948 287.2 1.3 2.2 44.2 0.2 0.3 32.9 0.2 0.2 4.7 0.1 0.1 0.5 0.0 - 1.7 0.0 1.0 151.7 0.3 0.2 158.6 0.4 1.3

3rd Party - - - - - - 80% 73% 3% - - - 14% 10% - 82% 81% - - - - 1% 2% -

Equipment Failure 38% 80% 46% 20% 67% - 16% 25% 28% - - - 30% 40% - - - - 6% 24% 33% 6% 17% 4%

Operation 62% 20% 2% - - - - - - 100% 100% 100% 41% 40% - 18% 19% - 0% 1% - 4% 27% 8%

Other - - 52% - - 69% 3% 1% 69% - - - 14% 10% - - - 100% 0% 0% 67% 0% 0% 88%

Vegetation/Animal - - - - - - 1% 0% - - - - - - - - - - - - - - - -

Weather/Fire/Earthquake - - - 80% 33% 31% - - - - - - - - - - - - - - - - - -

PSPS - - - - - - - - - - - - - - - - - - 94% 75% - 90% 53% -

Reliability Histories for Individual Circuits Serving San Bernardino District 1 - 20 of 30

2016 2017 2018 1st Qtr 2019 2nd Qtr 2019 3rd Qtr 2019 4th Qtr 2019 2019

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CircuitHistory21SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI

POCO(33KV) - Customers: 18 195.8 3.0 - - - 4.0 - - 2.0 - - - 55.2 0.2 1.0 - - - 45.3 2.1 1.0 100.5 2.3 2.0

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

Equipment Failure 73% 67% - - - 25% - - - - - - 85% 50% - - - - - - - 47% 5% -

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

Other - - - - - 75% - - - - - - - - 100% - - - - - 100% - - 100%

Vegetation/Animal - - - - - - - - 100% - - - 15% 50% - - - - - - - 8% 5% -

Weather/Fire/Earthquake 27% 33% - - - - - - - - - - - - - - - - 100% 100% - 45% 90% -

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

POINT OF ROCKS(12KV) - Customers: 601 594.8 1.0 1.0 503.7 1.7 8.3 160.0 1.2 1.0 22.0 1.3 0.7 301.8 3.4 2.7 1437.5 3.1 1.0 9.7 0.1 2.0 1771.0 7.9 6.4

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

Equipment Failure 5% 3% - 4% 3% - 85% 16% - - - - 4% 10% 25% 0% 0% - 95% 98% - 1% 6% 11%

Operation 94% 96% - - - - 15% 84% - - - - 40% 30% - 12% 34% - 5% 2% 100% 16% 26% 31%

Other - - - 8% 19% 20% - - 100% 13% 24% 100% - - 75% 88% 66% 100% - - - 72% 30% 58%

Vegetation/Animal 1% 1% - 79% 59% - - - - 87% 76% - - - - - - - - - - 1% 13% -

Weather/Fire/Earthquake - - - 9% 19% 80% - - - - - - 56% 60% - - - - - - - 10% 25% -

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

POLICE(12KV) - Customers: 910 32.1 0.5 0.5 315.7 0.5 3.3 10.8 0.1 0.1 7.6 0.0 1.0 42.4 0.4 1.1 - - - 0.3 0.0 0.1 50.2 0.4 2.2

3rd Party 47% 86% 100% - - - 31% 54% - - - - - - 9% - - - - - - - - 4%

Equipment Failure 24% 2% - 98% 99% 69% 69% 46% - - - - 83% 97% - - - - 92% 67% - 71% 95% -

Operation 30% 12% - 0% 1% - - - - - - - 13% 1% 91% - - - 8% 33% - 11% 1% 46%

Other - - - 2% 1% 31% - - 100% - - - 3% 3% - - - - - - 100% 3% 3% 4%

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

Weather/Fire/Earthquake - - - - - - - - - 100% 100% 100% - - - - - - - - - 15% 2% 45%

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

POTASH(12KV) - Customers: 224 910.7 1.7 1.0 440.7 1.1 - 78.4 1.0 2.0 13.9 1.0 1.0 325.4 3.0 3.1 1353.7 3.1 2.0 - - - 1692.9 7.1 6.1

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

Equipment Failure 3% 4% - - - - 3% 1% - - - - - - 33% 1% 1% 51% - - - 1% 0% 33%

Operation 97% 96% - - - - - - - - - - 37% 33% - 11% 34% - - - - 16% 29% -

Other - - - 9% 6% - 97% 99% 100% - - 100% - - 67% 88% 65% 49% - - - 71% 28% 67%

Vegetation/Animal - - - 91% 94% - - - - 100% 100% - - - - - - - - - - 1% 14% -

Weather/Fire/Earthquake - - - - - - - - - - - - 63% 67% - - - - - - - 12% 29% -

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

Reliability Histories for Individual Circuits Serving San Bernardino District 1 - 21 of 30

2016 2017 2018 1st Qtr 2019 2nd Qtr 2019 3rd Qtr 2019 4th Qtr 2019 2019

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CircuitHistory22SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI

POTOSI(25KV) - Customers: 87 621.8 3.1 12.0 1258.4 10.6 11.7 119.6 2.1 11.7 - - 3.9 75.8 1.3 0.3 10.0 0.0 6.0 30.7 0.0 7.0 116.4 1.4 17.2

3rd Party - - - 8% 9% - - - - - - - 2% 1% - - - - - - - 1% 1% -

Equipment Failure 2% 1% 8% 4% 1% 9% 15% 3% - - - - 88% 77% 100% 11% 33% 17% 86% 67% - 81% 76% 7%

Operation 0% 0% - - - - 67% 49% 6% - - - 5% 21% - - - - 14% 33% - 7% 21% -

Other 83% 65% 67% 51% 70% 89% 18% 49% 86% - - 100% - - - - - 83% - - 100% - - 93%

Vegetation/Animal 15% 34% 17% - - - - - 8% - - - 5% 1% - - - - - - - 3% 1% -

Weather/Fire/Earthquake - - 8% 37% 20% 2% - - - - - - - - - 89% 67% - - - - 8% 2% -

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

RAPTOR(12KV) - Customers: 10 314.0 1.0 1.0 626.0 4.0 2.1 - - - - - - - - - - - - 15.9 0.9 - 15.9 0.9 -

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

Equipment Failure 100% 100% - 30% 25% 48% - - - - - - - - - - - - 100% 100% - 100% 100% -

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

Other - - 100% 70% 75% 52% - - - - - - - - - - - - - - - - - -

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

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

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

REMOTE(33KV) - Customers: 37 496.1 3.1 4.4 241.3 3.0 2.2 322.6 0.8 0.2 - - - 99.7 0.2 0.7 67.4 0.3 1.0 66.3 1.6 3.0 233.4 2.2 4.8

3rd Party - - - 9% 33% 45% - - - - - - - - - - - - - - - - - -

Equipment Failure 8% 32% 22% 5% 2% - 7% 3% - - - - 2% 11% - - - - - - - 1% 1% -

Operation - - 23% - - - - - - - - - - - - - - - - - - - - -

Other 12% 32% 23% 41% 32% 45% 90% 94% 100% - - - 98% 89% 100% 100% 100% 100% 100% 100% 100% 99% 99% 100%

Vegetation/Animal - - 23% - - - - - - - - - - - - - - - - - - - - -

Weather/Fire/Earthquake 80% 36% 9% 45% 33% 10% 4% 3% - - - - - - - - - - - - - - - -

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

RIO VISTA(12KV) - Customers: 2 - - - - - - 228.0 1.0 - - - - 54.7 0.7 - - - - - - - 54.7 0.7 -

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

Equipment Failure - - - - - - - - - - - - - - - - - - - - - - - -

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

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

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

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

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

Reliability Histories for Individual Circuits Serving San Bernardino District 1 - 22 of 30

2016 2017 2018 1st Qtr 2019 2nd Qtr 2019 3rd Qtr 2019 4th Qtr 2019 2019

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CircuitHistory23SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI

ROBIN(12KV) - Customers: 169 404.6 3.9 4.2 903.7 4.0 7.7 1236.8 2.1 5.0 655.6 2.8 2.3 - - - 28.7 0.1 - 10.0 1.1 2.0 694.3 4.0 4.3

3rd Party - - - - - - 2% 20% 20% - - - - - - - - - - - - - - -

Equipment Failure 28% 15% 6% 63% 43% 33% 21% 32% 80% 92% 95% 70% - - - 97% 92% - 72% 93% 1% 92% 94% 37%

Operation 4% 27% - 2% 24% - - - - 8% 5% - - - - 3% 8% - 28% 7% - 8% 6% -

Other 68% 59% 94% 11% 25% 67% 78% 48% - 0% 0% 30% - - - - - - - - 99% 0% 0% 63%

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

Weather/Fire/Earthquake - - - 24% 8% - - - - - - - - - - - - - - - - - - -

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

RUSS BOYD(33KV) - Customers: 5 1024.0 1.0 - - - - 70.0 1.0 - - - - - - - - - - - - - - - -

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

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

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

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

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

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

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

SAGEBRUSH(4.16KV) - Customers: 9 446.5 7.7 2.9 - - 4.0 155.3 2.0 5.1 222.7 5.2 8.0 15.9 1.0 2.0 - - 2.0 - - - 238.6 6.1 12.0

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

Equipment Failure 75% 76% - - - - - - 20% 16% 19% - - - - - - - - - - 15% 16% -

Operation 5% 12% - - - - - - - - - - - - - - - - - - - - - -

Other - - 68% - - 74% 58% 52% 80% 84% 81% 88% - - 50% - - 100% - - - 78% 68% 83%

Vegetation/Animal 20% 12% 32% - - 26% 42% 48% - - - - 100% 100% 50% - - - - - - 7% 16% 8%

Weather/Fire/Earthquake - - - - - - - - - - - 12% - - - - - - - - - - - 8%

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

SALT(16KV) - Customers: 3 - - 1.0 - - - 3706.6 8.3 1.0 - - - 917.6 2.0 - 4283.0 3.0 - - - - 5200.6 5.0 -

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

Equipment Failure - - - - - - 91% 72% 100% - - - 55% 50% - - - - - - - 10% 20% -

Operation - - - - - - 6% 24% - - - - - - - - - - - - - - - -

Other - - 100% - - - 3% 4% - - - - 45% 50% - 100% 100% - - - - 90% 80% -

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

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

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

Reliability Histories for Individual Circuits Serving San Bernardino District 1 - 23 of 30

2016 2017 2018 1st Qtr 2019 2nd Qtr 2019 3rd Qtr 2019 4th Qtr 2019 2019

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CircuitHistory24SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI

SEAFORTH(12KV) - Customers: 2,364 19.4 0.1 - 17.6 1.2 1.0 1.7 0.0 2.0 - - 1.0 0.4 0.0 - 0.4 0.0 1.0 0.2 0.0 - 1.0 0.0 2.0

3rd Party - - - - - - 3% 8% 100% - - - 45% 11% - - - - - - - 17% 2% -

Equipment Failure 48% 29% - 3% 0% - 97% 92% - - - 100% 26% 22% - 100% 100% 100% 51% 68% - 62% 68% 100%

Operation 3% 4% - 54% 15% - - - - - - - 29% 67% - - - - 49% 32% - 22% 29% -

Other 49% 67% - - - - - - - - - - - - - - - - - - - - - -

Vegetation/Animal - - - 43% 85% 100% - - - - - - - - - - - - - - - - - -

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

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

SEALS(12KV) - Customers: 1,063 128.7 1.8 2.7 45.9 1.7 0.3 165.1 2.8 2.8 38.2 1.4 1.0 0.8 0.0 0.0 85.3 1.0 - 10.6 1.0 1.0 134.9 3.4 2.0

3rd Party 18% 55% - 88% 62% - 36% 43% 50% 81% 99% - - - 100% - - - - - - 23% 40% 1%

Equipment Failure 43% 10% - 1% 0% - 22% 22% 14% - - - 100% 100% - 100% 100% - - - - 64% 30% -

Operation - - 37% - - - - - - - - - - - - - - - - - - - - -

Other - - 37% - - - - - 37% - - - - - - - - - 100% 100% 100% 8% 30% 50%

Vegetation/Animal - - - 12% 38% 100% 42% 35% - - - - - - - - - - - - - - - -

Weather/Fire/Earthquake 39% 36% 26% - - - - - - 19% 1% 100% - - - - - - - - - 5% 0% 49%

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

SHANGRILA(12KV) - Customers: 2,024 8.7 0.6 - 8.0 0.0 - 43.3 1.1 - 0.1 0.0 - 28.5 0.6 2.4 0.5 0.0 3.0 3.3 0.0 - 32.3 0.7 5.4

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

Equipment Failure - - - 5% 5% - 37% 8% - 100% 100% - 100% 99% 18% 100% 100% 67% - - - 90% 98% 45%

Operation 100% 100% - 93% 91% - 63% 92% - - - - 0% 1% 41% - - - - - - 0% 1% 18%

Other - - - 2% 5% - - - - - - - - - 41% - - 33% 100% 100% - 10% 1% 37%

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

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

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

SHEEPHOLE(33KV) - Customers: 8 3148.0 7.7 3.1 1862.7 4.2 5.4 490.4 2.7 3.3 602.3 0.6 0.3 3.3 0.3 0.3 342.9 2.0 5.3 28.0 2.0 1.0 976.4 4.9 6.8

3rd Party 3% 1% - - - - - - 7% - - - - - - - - - - - - - - -

Equipment Failure 63% 42% 36% 1% 11% 37% 2% 26% 21% - - - 100% 100% 100% - - - 66% 50% - 2% 26% 4%

Operation 12% 17% - 6% 26% - 32% 35% - 95% 80% - - - - - - 19% 34% 50% - 60% 31% 15%

Other 9% 13% 64% 0% 5% 63% - - 71% 5% 20% 100% - - - 3% 50% 29% - - 100% 4% 23% 41%

Vegetation/Animal 13% 26% - - - - - - - - - - - - - - - - - - - - - -

Weather/Fire/Earthquake - - - 93% 58% - 65% 39% - - - - - - - 97% 50% 52% - - - 34% 21% 41%

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

Reliability Histories for Individual Circuits Serving San Bernardino District 1 - 24 of 30

2016 2017 2018 1st Qtr 2019 2nd Qtr 2019 3rd Qtr 2019 4th Qtr 2019 2019

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CircuitHistory25SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI

SHOSHONE(33KV) - Customers: 19 928.1 2.8 13.0 1942.8 6.4 52.6 321.4 2.8 22.0 1543.7 3.3 0.5 1037.1 1.1 5.0 23.1 1.0 1.0 411.8 0.6 5.1 3015.7 6.0 11.6

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

Equipment Failure 20% 15% - 24% 6% - - - - 1% 2% - 1% 5% - - - - 40% 42% - 7% 6% -

Operation - - - - - - 29% 47% 5% 0% 3% - - - - - - - 60% 58% - 8% 8% -

Other 56% 80% 100% 76% 94% 100% 71% 53% 95% 21% 66% 100% - - 100% 100% 100% 100% - - 100% 11% 53% 100%

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

Weather/Fire/Earthquake 24% 6% - - - - - - - 78% 30% - 99% 95% - - - - - - - 74% 33% -

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

SKY HI(12KV) - Customers: 1,588 106.2 1.6 0.3 321.9 1.5 2.5 104.7 1.4 1.1 14.4 0.1 - 9.8 0.1 0.3 455.3 2.3 - 12.1 0.0 1.3 491.5 2.5 1.6

3rd Party - - - 85% 72% - 1% 1% - - - - 12% 5% 16% 89% 44% - - - - 83% 41% 3%

Equipment Failure 57% 6% - 9% 22% - 45% 25% 9% 10% 11% - 47% 18% - 1% 1% - 7% 10% - 2% 1% -

Operation 15% 71% 100% 1% 1% 41% 0% 0% 5% 13% 18% - 1% 1% - - - - - - - 0% 1% -

Other 27% 22% - 4% 5% 19% 11% 4% 5% 44% 23% - 40% 76% 84% 10% 56% - 30% 54% - 12% 55% 18%

Vegetation/Animal 1% 0% - 0% 0% 41% 1% 0% - 28% 36% - - - - 0% 0% - 2% 4% 79% 1% 1% 62%

Weather/Fire/Earthquake 0% 0% - - - - 42% 69% 81% 6% 12% - - - - - - - - - - 0% 0% -

PSPS - - - - - - - - - - - - - - - - - - 61% 32% 21% 1% 1% 17%

SPEAR(12KV) - Customers: 1,953 10.1 0.0 0.4 61.3 0.9 0.9 16.9 0.0 0.4 5.5 0.1 0.0 2.4 0.1 0.1 19.4 0.3 - 3.4 0.0 1.0 30.7 0.4 1.1

3rd Party - - - 75% 91% 100% - - - 24% 7% - 68% 94% 100% - - - - - - 10% 18% 7%

Equipment Failure 17% 20% - 8% 2% - 27% 34% - 53% 8% - 30% 5% - 23% 3% - 59% 77% - 33% 10% -

Operation 1% 12% - - - - 4% 14% - 23% 85% 100% - - - 2% 3% - 39% 21% - 10% 15% 2%

Other 3% 12% 25% 15% 6% - 3% 12% 100% - - - 2% 1% - 3% 2% - - - 100% 2% 2% 92%

Vegetation/Animal 6% 4% - - - - 1% 7% - - - - - - - 72% 92% - 1% 2% - 46% 55% -

Weather/Fire/Earthquake 72% 52% 75% 1% 1% - 66% 33% - - - - - - - - - - - - - - - -

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

SPETH(12KV) - Customers: 255 422.3 4.0 1.5 475.8 4.6 0.9 32.8 1.7 2.2 59.1 0.8 - 13.2 0.0 1.0 0.5 0.0 1.0 2.4 0.0 - 75.3 0.8 2.0

3rd Party 9% 11% - 57% 22% - - - - 95% 98% - - - - - - - - - - 75% 94% -

Equipment Failure 0% 0% - 3% 0% 46% 59% 26% 46% 3% 1% - - - - 100% 100% - - - - 3% 1% -

Operation 11% 12% 33% 35% 44% - 6% 14% 12% - - - - - - - - - - - - - - -

Other 53% 51% 67% 5% 33% 54% 35% 60% 42% - - - 100% 100% 100% - - 100% - - - 17% 2% 100%

Vegetation/Animal 27% 25% - 1% 0% - - - - - - - - - - - - - 100% 100% - 3% 1% -

Weather/Fire/Earthquake - - - - - - - - - 2% 2% - - - - - - - - - - 1% 2% -

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

Reliability Histories for Individual Circuits Serving San Bernardino District 1 - 25 of 30

2016 2017 2018 1st Qtr 2019 2nd Qtr 2019 3rd Qtr 2019 4th Qtr 2019 2019

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CircuitHistory26SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI

SPRING VALLEY(12KV) - Customers: 1,948 312.1 2.1 2.4 97.8 1.4 2.3 126.8 1.1 1.7 11.2 0.3 0.6 35.0 0.1 1.7 72.0 0.4 - 69.9 0.3 1.2 188.1 1.1 3.4

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

Equipment Failure 99% 98% 100% 97% 92% 90% 97% 92% 100% 79% 5% - 100% 100% - 89% 71% - 43% 21% - 73% 45% -

Operation - - - 3% 8% 10% 3% 8% - 2% 5% - - - - 11% 29% - 57% 79% - 25% 34% -

Other 1% 2% - - - - - - - - - - - - 100% - - - - - 100% - - 82%

Vegetation/Animal - - - - - - - - - 19% 91% 100% - - - - - - - - - 1% 22% 18%

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

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

SQUINT(12KV) - Customers: 1,189 1087.5 3.0 3.5 48.7 1.6 6.8 5.4 0.6 2.0 17.0 1.0 1.0 - - 1.0 132.4 1.8 - 1887.5 3.8 3.0 2036.8 6.5 5.0

3rd Party 17% 36% 27% - - 15% - - - - - - - - - - - - - - - - - -

Equipment Failure - - - 3% 0% 15% 20% 2% - 100% 100% 100% - - - 1% 1% - 5% 5% - 6% 18% 20%

Operation 9% 2% 13% 31% 65% - 80% 98% 50% - - - - - - 18% 3% - 20% 54% - 19% 32% -

Other 9% 32% 60% - - 15% - - - - - - - - 100% 76% 40% - 58% 27% 100% 58% 26% 80%

Vegetation/Animal - - - - - - - - 50% - - - - - - 5% 56% - - - - 0% 15% -

Weather/Fire/Earthquake 64% 30% - 66% 35% 56% - - - - - - - - - - - - 18% 14% - 16% 8% -

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

STANDING ROCK(12KV) - Customers: 2,319 107.2 1.1 1.5 15.6 0.1 2.1 92.6 1.1 1.0 53.3 1.0 1.0 0.7 0.0 - 137.0 1.0 - 11.3 1.0 - 202.2 3.1 1.0

3rd Party 18% 6% 76% - - - 22% 3% - - - - 7% 5% - - - - - - - 0% 0% -

Equipment Failure 60% 64% 24% 3% 2% - 2% 1% - 0% 0% - 22% 30% - 0% 0% - 0% 0% - 0% 0% -

Operation 3% 5% - - - 0% 0% 2% - 0% 0% - 45% 30% - 0% 0% - 5% 1% - 1% 0% -

Other 17% 25% - 10% 8% 53% 0% 0% 100% 98% 99% 100% 26% 35% - 99% 99% - 94% 99% - 99% 99% 100%

Vegetation/Animal 2% 0% - 87% 90% 47% 75% 94% - 1% 1% - - - - - - - - - - 0% 0% -

Weather/Fire/Earthquake - - - - - - - - - - - - - - - 0% 1% - - - - 0% 0% -

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

SUNDOWN(12KV) - Customers: 2,948 491.5 9.0 4.9 137.2 0.5 8.2 226.2 3.7 8.6 313.1 6.0 8.0 55.7 2.0 2.0 51.1 0.5 1.0 - - 1.0 419.9 8.5 12.0

3rd Party - - 0% - - - - - - - - - - - - - - - - - - - - -

Equipment Failure 74% 67% 29% 100% 99% - 11% 2% 12% 11% 17% - - - - 30% 7% - - - - 12% 12% -

Operation 4% 11% - 0% 0% 12% 4% 12% - 38% 17% 0% 60% 50% - - - - - - - 37% 24% 0%

Other 2% 11% 50% 0% 1% 75% 52% 47% 88% 50% 67% 88% - - 50% 70% 93% 100% - - 100% 46% 52% 83%

Vegetation/Animal 20% 11% 21% - - 12% 31% 27% - - - - 40% 50% 50% - - - - - - 5% 12% 8%

Weather/Fire/Earthquake - - - - - - 2% 12% - 0% 0% 12% - - - - - - - - - 0% 0% 8%

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

Reliability Histories for Individual Circuits Serving San Bernardino District 1 - 26 of 30

2016 2017 2018 1st Qtr 2019 2nd Qtr 2019 3rd Qtr 2019 4th Qtr 2019 2019

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CircuitHistory27SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI

TALC(12KV) - Customers: 16 361.4 2.0 4.1 440.0 1.0 3.9 665.5 1.5 1.4 - - 2.3 - - 2.0 - - - - - - - - 4.3

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

Equipment Failure - - - - - - - - - - - - - - - - - - - - - - - -

Operation - - - - - - 6% 36% 33% - - - - - - - - - - - - - - -

Other 100% 100% 100% 100% 100% 100% - - 67% - - 100% - - 100% - - - - - - - - 100%

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

Weather/Fire/Earthquake - - - - - - 94% 64% - - - - - - - - - - - - - - - -

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

TETLEY(12KV) - Customers: 868 198.7 1.7 5.6 598.4 4.0 4.1 151.1 2.0 3.9 24.1 1.0 2.0 103.2 1.1 3.0 103.7 2.3 - 5775.0 9.2 4.8 6006.0 13.7 9.8

3rd Party - - 18% - - 23% - - - - - - 75% 8% - - - - - - - 1% 1% -

Equipment Failure - - - 48% 27% 52% 21% 24% 47% 100% 100% 51% - - 33% 0% 1% - 49% 52% 21% 48% 43% 31%

Operation 0% 7% - 3% 25% - 19% 49% 14% - - - - - - 40% 45% - 8% 11% 1% 8% 15% 0%

Other 2% 21% 82% 38% 24% 25% 7% 1% - - - 49% 25% 92% 67% 48% 12% - 6% 11% 37% 7% 17% 49%

Vegetation/Animal - - - - - - - - 26% - - - - - - 12% 42% - 1% 1% - 1% 7% -

Weather/Fire/Earthquake 97% 72% - 10% 24% - 54% 26% 14% - - - - - - - - - 35% 25% 41% 34% 17% 20%

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

THRUSH(2.4KV) - Customers: 567 8.3 1.0 1.0 647.1 1.0 2.0 3576.1 4.2 0.5 170.7 3.0 3.8 - - - - - - 5.9 1.0 1.0 176.6 4.0 4.8

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

Equipment Failure - - - 100% 100% - 49% 24% - 91% 67% 47% - - - - - - 100% 100% - 91% 75% 37%

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

Other - - - - - 100% 51% 76% 100% 9% 33% 53% - - - - - - - - 100% 9% 25% 63%

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

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

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

TONTO(12KV) - Customers: 2,507 163.0 2.0 1.8 153.0 1.5 5.6 262.2 1.0 0.3 30.1 0.8 1.3 10.9 0.0 0.0 170.7 0.9 0.3 0.6 0.0 1.0 212.2 1.7 2.6

3rd Party 4% 4% - 66% 43% 3% 99% 98% - - - 77% 5% 7% - 1% 6% 100% - - - 1% 3% 51%

Equipment Failure 92% 64% 57% 27% 48% 25% 1% 1% - 100% 100% - 5% 9% 100% - - - 92% 80% - 15% 46% 0%

Operation 0% 0% - 0% 0% - - - 61% - - - - - - 0% 0% - 8% 20% - 0% 0% -

Other 3% 32% 43% 0% 0% 54% - - - - - 23% 86% 81% - 0% 0% - - - 100% 4% 2% 49%

Vegetation/Animal 1% 1% - 0% 0% - 0% 0% 39% - - - 4% 2% - 99% 94% - - - - 80% 49% -

Weather/Fire/Earthquake - - - 6% 8% 19% 0% 0% - - - - - - - - - - - - - - - -

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

Reliability Histories for Individual Circuits Serving San Bernardino District 1 - 27 of 30

2016 2017 2018 1st Qtr 2019 2nd Qtr 2019 3rd Qtr 2019 4th Qtr 2019 2019

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CircuitHistory28SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI

TOPOC(16KV) - Customers: 860 865.4 3.0 26.9 4025.7 10.3 11.0 753.4 4.1 4.2 54.5 0.3 - - - 1.0 0.7 0.0 2.0 101.2 0.1 2.0 156.4 0.4 5.0

3rd Party - - - 7% 3% 9% - - - - - - - - - - - - - - - - - -

Equipment Failure - - - 21% 23% 18% 6% 25% - 100% 100% - - - - 12% 33% - 43% 50% - 63% 83% -

Operation 0% 0% - 1% 5% - 1% 1% - - - - - - - - - - 57% 50% - 37% 17% -

Other 100% 100% 96% 70% 69% 64% 93% 74% 76% - - - - - 100% 88% 67% 100% - - 100% 0% 1% 100%

Vegetation/Animal - - 4% - - 9% - - - - - - - - - - - - - - - - - -

Weather/Fire/Earthquake - - - - - - - - 24% - - - - - - - - - - - - - - -

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

TUMBLEWEED(2.4KV) - Customers: 68 218.4 0.9 0.8 289.8 2.0 1.0 182.9 1.8 0.9 - - 1.0 - - - - - - 83.3 1.0 - 83.3 1.0 1.0

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

Equipment Failure - - - 42% 49% - - - - - - - - - - - - - 100% 100% - 100% 100% -

Operation 100% 100% 100% - - - 46% 53% 100% - - - - - - - - - - - - - - -

Other - - - 58% 51% 100% 54% 47% - - - 100% - - - - - - - - - - - 100%

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

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

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

TUNNEL(12KV) - Customers: 1,025 412.0 1.4 0.2 66.5 0.6 1.4 67.4 1.6 1.1 11.1 0.4 0.3 4.5 0.0 1.0 1.4 0.0 - 34.3 0.2 0.7 51.3 0.6 1.9

3rd Party 26% 38% - - - - 1% 0% 11% 77% 63% 50% 5% 9% - - - - - - - 17% 38% 7%

Equipment Failure 6% 13% - 81% 67% 100% 1% 1% - 23% 37% - 95% 91% - 89% 40% - 10% 9% - 22% 28% -

Operation 58% 13% - 0% 0% - 65% 79% - - - - - - - 11% 60% - - - 100% 0% 1% 34%

Other 9% 35% 100% 19% 32% - 33% 20% 89% - - 50% - - 100% - - - 90% 91% - 60% 32% 59%

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

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

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

TURKEY(12KV) - Customers: 972 216.7 2.0 4.6 74.2 2.2 5.1 64.5 1.0 1.0 38.3 0.8 0.8 0.1 0.0 0.2 - - 1.0 - - - 38.5 0.8 2.0

3rd Party 1% 0% - 75% 45% 15% - - - 100% 100% 100% - - - - - - - - - 100% 99% 38%

Equipment Failure 21% 49% - 1% 0% - 100% 100% - - - - 100% 100% 100% - - - - - - 0% 1% 11%

Operation - - 21% 5% 9% 20% - - - - - - - - - - - - - - - - - -

Other 78% 50% 57% 19% 46% 61% - - 100% - - - - - - - - 100% - - - - - 51%

Vegetation/Animal - - 22% - - - - - - - - - - - - - - - - - - - - -

Weather/Fire/Earthquake - - - - - 4% - - - - - - - - - - - - - - - - - -

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

Reliability Histories for Individual Circuits Serving San Bernardino District 1 - 28 of 30

2016 2017 2018 1st Qtr 2019 2nd Qtr 2019 3rd Qtr 2019 4th Qtr 2019 2019

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CircuitHistory29SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI

TUSSING(12KV) - Customers: 1,875 15.0 0.1 2.7 33.9 0.7 2.9 9.8 0.1 - 0.8 0.0 0.0 5.0 0.0 - 205.7 1.3 - 3.9 0.0 1.0 215.4 1.4 1.0

3rd Party - - 19% - - 9% 50% 85% - - - - 49% 39% - 1% 1% - 6% 7% - 2% 2% -

Equipment Failure 97% 97% 37% 32% 7% 74% 39% 12% - 82% 67% 100% 30% 20% - 0% 1% - 9% 39% - 1% 2% 0%

Operation - - 37% 18% 72% 9% 2% 1% - 18% 33% - 10% 19% - 0% 0% - 77% 42% - 2% 2% -

Other - - 6% - - - 0% 1% - - - - 7% 13% - 2% 4% - 7% 13% 100% 2% 5% 100%

Vegetation/Animal 3% 3% - 50% 21% 8% 9% 1% - - - - 3% 9% - 95% 93% - - - - 91% 88% -

Weather/Fire/Earthquake - - - - - - - - - - - - - - - 2% 1% - - - - 2% 1% -

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

UNDERWORLD(12KV) - Customers: 564 153.8 0.3 3.0 24.3 0.0 9.0 93.1 2.0 3.0 31.9 1.0 6.0 11.8 0.0 0.8 10.6 0.0 - - - - 54.4 1.1 6.8

3rd Party - - - 1% 4% - 3% 1% - - - - 5% 10% 0% - - - - - - 1% 0% 0%

Equipment Failure 1% 1% - 58% 38% - 12% 1% - 0% 0% - 18% 43% - 84% 67% - - - - 21% 5% -

Operation 98% 98% - - - - - - - - - - 76% 43% 100% 16% 33% - - - - 20% 3% 12%

Other - - 100% 40% 54% 89% - - 33% 100% 100% 83% 1% 5% - - - - - - - 59% 92% 73%

Vegetation/Animal 0% 1% - 1% 4% - 85% 98% 67% - - - - - - - - - - - - - - -

Weather/Fire/Earthquake - - - - - 11% - - - - - 17% - - - - - - - - - - - 15%

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

VERDEMONT(33KV) - Customers: 11 5254.6 1.6 1.6 1037.5 4.2 2.6 195.4 1.2 4.2 - - - 9.5 1.2 3.0 639.0 1.6 - - - 1.0 648.5 2.8 4.0

3rd Party 7% 88% 25% 34% 33% 23% 92% 17% 29% - - - - - - - - - - - - - - -

Equipment Failure - - - 20% 10% 38% - - - - - - 73% 83% 67% 77% 63% - - - - 77% 71% 50%

Operation - - - 4% 10% - - - - - - - 27% 17% - 23% 38% - - - - 23% 29% -

Other - - 75% 4% 24% 38% 8% 83% 71% - - - - - - - - - - - 100% - - 25%

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

Weather/Fire/Earthquake 93% 13% - 38% 24% - - - - - - - - - - - - - - - - - - -

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

WEISS(4.16KV) - Customers: 181 724.7 9.4 8.4 83.1 2.5 7.0 206.1 2.5 6.5 269.6 5.5 7.1 112.2 2.0 2.0 1.3 0.0 2.4 119.2 1.0 1.0 502.4 8.6 12.5

3rd Party - - - - - - - - - 22% 27% - - - - - - - - - - 12% 17% -

Equipment Failure 39% 57% - 5% 0% - 25% 21% 23% 13% 18% - 86% 50% - 100% 100% - - - - 27% 24% -

Operation 5% 11% 12% 18% 19% - - - - - - - - - - - - - 100% 100% 100% 24% 12% 8%

Other - - 76% 77% 80% 86% 42% 39% 77% 65% 55% 86% - - 50% - - 100% - - - 35% 35% 76%

Vegetation/Animal 13% 11% 12% - - 14% 34% 40% - - - - 14% 50% 50% - - - - - - 3% 12% 8%

Weather/Fire/Earthquake 42% 21% - - - - - - - - - 14% - - - - - - - - - - - 8%

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

Reliability Histories for Individual Circuits Serving San Bernardino District 1 - 29 of 30

2016 2017 2018 1st Qtr 2019 2nd Qtr 2019 3rd Qtr 2019 4th Qtr 2019 2019

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CircuitHistory30SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI

WESTEND(12KV) - Customers: 32 120.2 3.0 1.0 58.9 2.0 2.0 - - 1.0 1856.5 2.0 1.0 122.2 1.0 2.0 1176.7 2.0 2.9 6.4 0.0 - 3161.7 5.1 6.0

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

Equipment Failure - - - - - - - - - - - - - - 50% - - - 100% 100% - 0% 1% 17%

Operation 100% 100% - - - - - - - - - - 100% 100% - 1% 3% 67% - - - 4% 21% 33%

Other - - - - - 51% - - 100% 99% 50% 100% - - 50% 99% 97% 33% - - - 95% 58% 50%

Vegetation/Animal - - - 100% 100% 49% - - - 1% 50% - - - - - - - - - - 0% 20% -

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

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

ZIGGY(12KV) - Customers: 7 187.0 1.0 - - - - 35.0 1.0 - - - - 220.0 0.7 - - - - - - - 220.0 0.7 -

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

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

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

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

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

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

PSPS - - - - - - - - - - - - - - - - - - - - - - - -

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

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

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

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

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Reliability Histories for Individual Circuits Serving San Bernardino District 1 - 30 of 30

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