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Circuit Reliability Review
Palmdale
2020
2
• 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
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
3
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
4
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
5
• 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
6
• 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)
7
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
Reliability Overview
8
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
9
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.
How Do We Measure Reliability?
SAIDI SAIFI MAIFI CAIDI
10
CityList1Communities in the ANTELOPE VALLEY District
QUARTZ HILL
ROSAMOND
DESERT VIEW HIGHLANDS
EDWARDS AFB
FRAZIER PARK
LAKE LOS ANGELES
LAKE OF THE WOODS
LANCASTER
ACTON
LEBEC
LITTLEROCK
PALMDALE
PINE MOUNTAIN CLUB
11
*”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.
12
CircuitList1Overview of PalmdaleThere are 54 circuits that serve Palmdale 1
Circuit Type Customers Circuit Type Customers Circuit Type Customers Circuit Type Customers
ACROBAT(12KV) 2,210 QUINBY(12KV) 2,816 - -
ANAKIN(12KV) 1,551 RAYBURN(12KV) 1,466 - -
ASHBERRY(12KV) 1,634 RAZOR(12KV) 1,278 - -
ASSEMBLY(12KV) 1,384 RITTER(12KV) 402 - -
BEONE(12KV) 1,048 SHOVEL(12KV) 782 - -
BIG PINES(12KV) 1,868 SHOWDOWN(12KV) 1,368 - -
CALIBER(12KV) 1,465 SIMS(12KV) 1,617 - -
CALLI VALLI(12KV) 1,711 SKYWALKER(12KV) 1,894 - -
CANDLEBERRY(12KV) 886 SPUR(12KV) 2,177 - -
CITY RANCH(12KV) 2,343 STEALTH(12KV) 2,581 - -
COURSON(12KV) 2,325 STING(12KV) 2,544 - -
DROID(12KV) 1,480 SUBIDA(12KV) 1,425 - -
FARMS(12KV) 2,360 SUN VILLAGE(12KV) 1,511 - -
FORAGE(12KV) 167 THORNBURG(12KV) 1,819 - -
GODDE(12KV) 1,730 THUNDERBOLT(12KV) 1,868 - -
HANGER(12KV) 95 TIERRA BONITA(12KV) 17 - -
HEIGHTS(12KV) 2,568 TITAN(12KV) 1,506 - -
HUCKLEBERRY(12KV) 174 TOMCAT(12KV) 2,258 - -
INVENTION(12KV) 2,025 TWAIN(12KV) 1,178 - -
KONOBIE(12KV) 1,651 VADAR(12KV) 951 - -
LASKER(12KV) 1,888 WHIP(12KV) 1,781 - -
LEDFORD(12KV) 2,256 WOOKIE(12KV) 687 - -
LEONA(12KV) 1,173 YODA(12KV) 810 - -
LUPINE(12KV) 489 TAWNA(12KV) 1 - -
MARK(12KV) 2,061 - - -
NASA(12KV) 784 - - -
PADDY(12KV) 1,352 - - -
PAINT(12KV) 2,516 - - -
PEARLAND(12KV) 2,236 - - -
PELONA(12KV) 1,472 - - -
Grand Total 81,639
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BarChart
SCE SYSTEMWIDE
**Data is as of 02/14/2020, data
can be slightly different due to
outage data validation process
Palmdale
Reliability History of Circuits Serving Palmdale (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.
88.473.6
48.2
121.2
134.5 139.7 136.8
178.0
0.0
50.0
100.0
150.0
200.0
2016 2017 2018 2019
SAIDI
(average
minutes of
sustained
interruptions)
0.80.8
0.5 0.5
1.11.2
0.9
1.0
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
SAIFI
(average
frequency of
sustained
interruptions)
0.8
1.51.3
1.0
1.6
1.8
1.4 1.4
0.0
0.5
1.0
1.5
2.0
MAIFI
(average
frequency of
momentary
interruptions)
14
SAIDIChart
SAIDI = the cumulative amount of time the average customer is interrupted by “sustained” outages each year.
Causes of Repair Outages in Palmdale
2019
3rd Party
11.4%
Equipment Failure
23.7%
Operation
2.9%
Other
2.1%
Vegetation /Animal
4.9%Weather /Fire
/Earthquake
1.9%
PSPS
53.0%
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
15
SAIFIChart
SAIFI = the number of times the average customer is interrupted by “sustained” outages each year
Causes of Repair Outages in Palmdale
2019
3rd Party
16.2%
Equipment Failure
47.3%
Operation
5.8%
Other
2.5%
Vegetation /Animal
14.9%
Weather /Fire
/Earthquake
6.1%
PSPS
7.2%
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
16
17
18
Back-up Slides
Reliability Histories of Circuits Serving Palmdale
Updated through Dec 2019
19
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
88.4 0.8 0.8 73.6 0.8 1.5 48.2 0.5 1.3 5.9 0.0 0.2 11.4 0.1 0.3 18.1 0.2 0.3 85.7 0.2 0.2 121.2 0.5 1.0
3rd Party 34% 35% 42% 29% 23% 18% 19% 21% 31% 7% 14% 44% 6% 6% 4% 19% 8% 20% 11% 30% 24% 11% 16% 20%
Equipment Failure 35% 38% 6% 48% 48% 23% 57% 57% 30% 32% 21% - 68% 66% 5% 65% 65% 6% 8% 28% 23% 24% 47% 9%
Operation 11% 7% 9% 9% 11% 8% 22% 20% 8% 12% 11% 1% 7% 6% 13% 2% 7% - 2% 3% - 3% 6% 5%
Other 18% 15% 37% 11% 16% 25% 1% 1% 24% 12% 8% 52% 2% 1% 59% 4% 2% 21% 1% 2% 43% 2% 3% 44%
Vegetation/Animal 0% 0% 2% 3% 3% 20% 0% 0% 5% 18% 35% - 15% 21% 19% 6% 11% 46% 2% 10% - 5% 15% 19%
Weather/Fire/Earthquake 2% 4% 4% - - 6% 1% 1% 2% 19% 12% 3% 0% 0% - 4% 7% 8% 1% 7% 10% 2% 6% 5%
PSPS - - - - - - - - - - - - - - - - - - 75% 20% - 53% 7% -
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
2nd Qtr 2019 3rd Qtr 2019
54 Circuits Serving Palmdale -- Total Customers:
81,639
Average Reliability of 54 Circuits Serving Palmdale
4th Qtr 2019 20192016 2017 2018 1st Qtr 2019
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.
20
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
ACROBAT(12KV) - Customers: 2,210 114.7 1.5 1.5 7.6 0.0 4.0 84.2 1.0 8.1 - - - 13.5 0.0 - 3.4 0.1 - 0.6 0.0 - 17.5 0.2 -
3rd Party 58% 49% 18% - - 25% 6% 3% 25% - - - - - - - - - - - - - - -
Equipment Failure - - - 74% 47% 50% 30% 9% 62% - - - 36% 48% - 100% 100% - 4% 5% - 47% 81% -
Operation 5% 3% - 16% 16% - 64% 87% 1% - - - - - - - - - 30% 86% - 1% 5% -
Other - - 65% 10% 38% - - - - - - - 57% 35% - - - - - - - 44% 9% -
Vegetation/Animal - - - - - 25% - - 12% - - - 7% 17% - - - - 65% 10% - 7% 5% -
Weather/Fire/Earthquake 37% 49% 18% - - - - - - - - - - - - - - - - - - - - -
PSPS - - - - - - - - - - - - - - - - - - - - - - - -
ANAKIN(12KV) - Customers: 1,551 - - - 0.6 0.0 - 14.7 0.0 - 23.5 0.0 - - - - - - 1.0 - - - 23.5 0.0 1.0
3rd Party - - - - - - - - - - - - - - - - - - - - - - - -
Equipment Failure - - - 100% 100% - 1% 14% - 100% 100% - - - - - - - - - - 100% 100% -
Operation - - - - - - 99% 86% - - - - - - - - - - - - - - - -
Other - - - - - - - - - - - - - - - - - - - - - - - -
Vegetation/Animal - - - - - - - - - - - - - - - - - 100% - - - - - 100%
Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - - - - - - -
PSPS - - - - - - - - - - - - - - - - - - - - - - - -
ASHBERRY(12KV) - Customers: 1,634 - - - - - 1.0 - - - - - - - - - - - - - - - - - -
3rd Party - - - - - - - - - - - - - - - - - - - - - - - -
Equipment Failure - - - - - - - - - - - - - - - - - - - - - - - -
Operation - - - - - - - - - - - - - - - - - - - - - - - -
Other - - - - - - - - - - - - - - - - - - - - - - - -
Vegetation/Animal - - - - - 100% - - - - - - - - - - - - - - - - - -
Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - - - - - - -
PSPS - - - - - - - - - - - - - - - - - - - - - - - -
ASSEMBLY(12KV) - Customers: 1,384 15.4 0.1 - 0.8 0.0 1.0 - - 1.0 63.8 1.0 - 0.5 0.0 1.0 0.5 0.0 - 59.6 1.0 - 124.4 2.0 1.0
3rd Party 4% 12% - - - - - - - - - - - - - 100% 100% - - - - 0% 0% -
Equipment Failure - - - 90% 50% - - - - - - - 67% 84% - - - - 100% 100% - 48% 52% -
Operation 86% 82% - 10% 50% - - - - - - - - - - - - - - - - - - -
Other - - - - - - - - 100% - - - - - 100% - - - - - - - - 100%
Vegetation/Animal - - - - - 100% - - - 100% 100% - 33% 16% - - - - - - - 51% 48% -
Weather/Fire/Earthquake 9% 6% - - - - - - - - - - - - - - - - - - - - - -
PSPS - - - - - - - - - - - - - - - - - - - - - - - -
Reliability Histories for Individual Circuits Serving Palmdale - 1 of 14
2016 2017 2018 1st Qtr 2019 2nd Qtr 2019 3rd Qtr 2019 4th Qtr 2019 2019
21
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
BEONE(12KV) - Customers: 1,048 - - 1.0 475.9 2.7 4.0 132.7 1.0 1.0 - - - - - 0.2 - - - 124.3 2.1 2.1 124.3 2.1 2.3
3rd Party - - 100% 31% 78% - 100% 100% - - - - - - - - - - - - - - - -
Equipment Failure - - - - - - - - - - - - - - - - - - 100% 100% - 100% 100% -
Operation - - - 69% 22% - - - - - - - - - - - - - - - - - - -
Other - - - - - 50% - - 100% - - - - - 100% - - - - - 100% - - 100%
Vegetation/Animal - - - - - 25% - - - - - - - - - - - - - - - - - -
Weather/Fire/Earthquake - - - - - 25% - - - - - - - - - - - - - - - - - -
PSPS - - - - - - - - - - - - - - - - - - - - - - - -
BIG PINES(12KV) - Customers: 1,868 382.7 3.0 3.0 366.3 3.1 1.2 11.6 0.2 1.9 0.4 0.0 0.4 50.2 0.8 1.0 130.0 1.2 1.1 30.4 0.0 - 211.1 2.0 2.5
3rd Party 34% 33% - 76% 62% 31% - - 46% - - - 3% 14% 57% 42% 12% 50% - - - 27% 13% 44%
Equipment Failure 3% 1% - 20% 18% 2% 29% 28% 54% - - - 3% 19% 43% 41% 48% 50% 100% 100% - 40% 37% 39%
Operation - - - 4% 20% - 71% 72% - 100% 100% - 26% 12% - 13% 36% - - - - 14% 26% -
Other 63% 66% 100% - - - - - - - - 100% - - - - - - - - - - - 17%
Vegetation/Animal - - - - - 67% - - - - - - 68% 55% - 4% 4% - - - - 18% 24% -
Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - - - - - - -
PSPS - - - - - - - - - - - - - - - - - - - - - - - -
CALIBER(12KV) - Customers: 1,465 307.6 2.7 1.4 229.6 2.3 1.7 108.9 2.2 1.7 1.3 0.0 1.0 0.2 0.0 - 71.3 0.7 1.1 164.1 0.3 1.6 236.9 1.0 3.7
3rd Party 76% 76% - 35% 6% 29% 71% 54% - - - - - - - 16% 10% - 50% 77% 37% 39% 30% 16%
Equipment Failure 0% 0% - 51% 68% - 27% 46% 60% - - - 100% 100% - 8% 2% 2% 50% 23% - 37% 9% 1%
Operation 0% 0% 70% 14% 26% - - - 4% - - - - - - - - - 0% 0% - 0% 0% -
Other 23% 24% 28% - - 36% 2% 0% 36% 100% 100% 100% - - - 22% 3% - - - 63% 7% 4% 54%
Vegetation/Animal 0% 0% 2% 0% 0% 36% - - - - - - - - - - - - - - - - - -
Weather/Fire/Earthquake - - - - - - - - - - - - - - - 54% 84% 98% - - - 16% 57% 29%
PSPS - - - - - - - - - - - - - - - - - - - - - - - -
CALLI VALLI(12KV) - Customers: 1,711 32.4 0.1 - 94.5 1.0 5.3 23.1 0.1 2.7 - - 1.3 37.0 0.3 2.3 92.0 0.4 0.8 - - - 129.1 0.7 4.5
3rd Party 83% 45% - 97% 97% 56% 5% 5% 62% - - 25% - - - 99% 95% 100% - - - 71% 52% 25%
Equipment Failure 1% 5% - 2% 1% - 4% 6% - - - - - - - - - - - - - - - -
Operation - - - 1% 1% - 83% 62% - - - - - - 86% 1% 4% - - - - 0% 2% 45%
Other 16% 50% - - - 6% - - 38% - - 75% - - - 0% 1% - - - - 0% 0% 22%
Vegetation/Animal - - - - - 19% 6% 12% - - - - 100% 100% 14% - - - - - - 29% 45% 8%
Weather/Fire/Earthquake - - - - - 19% 2% 15% - - - - - - - - - - - - - - - -
PSPS - - - - - - - - - - - - - - - - - - - - - - - -
2019
Reliability Histories for Individual Circuits Serving Palmdale - 2 of 14
2016 2017 2018 1st Qtr 2019 2nd Qtr 2019 3rd Qtr 2019 4th Qtr 2019
22
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
CANDLEBERRY(12KV) - Customers: 886 - - - 14.7 0.3 0.8 15.5 0.2 - - - 1.0 - - - 0.5 0.0 - - - - 0.5 0.0 1.0
3rd Party - - - 62% 77% 100% - - - - - - - - - - - - - - - - - -
Equipment Failure - - - - - - 37% 66% - - - - - - - 100% 100% - - - - 100% 100% -
Operation - - - - - - - - - - - - - - - - - - - - - - - -
Other - - - 38% 23% - 63% 34% - - - 100% - - - - - - - - - - - 100%
Vegetation/Animal - - - - - - - - - - - - - - - - - - - - - - - -
Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - - - - - - -
PSPS - - - - - - - - - - - - - - - - - - - - - - - -
CITY RANCH(12KV) - Customers: 2,343 85.5 1.0 - 125.7 1.3 2.7 156.8 1.7 0.4 9.4 0.0 - - - - 36.1 0.6 - 0.6 0.0 - 46.1 0.6 -
3rd Party - - - 2% 2% - 67% 63% - - - - - - - - - - - - - - - -
Equipment Failure 100% 100% - 44% 46% 85% 29% 36% 100% 6% 5% - - - - 2% 1% - 100% 100% - 4% 5% -
Operation - - - - - - 4% 1% - - - - - - - - - - - - - - - -
Other - - - - - - - - - 94% 95% - - - - - - - - - - 19% 4% -
Vegetation/Animal - - - 54% 52% 15% - - - - - - - - - 98% 99% - - - - 76% 91% -
Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - - - - - - -
PSPS - - - - - - - - - - - - - - - - - - - - - - - -
COURSON(12KV) - Customers: 2,325 217.0 2.6 2.3 85.8 1.4 0.4 33.6 0.3 1.0 - - - - - - - - - - - - - - -
3rd Party 36% 13% 56% - - - - - 100% - - - - - - - - - - - - - - -
Equipment Failure 58% 85% - 99% 97% 100% 26% 12% - - - - - - - - - - - - - - - -
Operation 6% 2% - 1% 3% - 74% 88% - - - - - - - - - - - - - - - -
Other - - 44% - - - - - - - - - - - - - - - - - - - - -
Vegetation/Animal - - - - - - - - - - - - - - - - - - - - - - - -
Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - - - - - - -
PSPS - - - - - - - - - - - - - - - - - - - - - - - -
DROID(12KV) - Customers: 1,480 241.9 2.5 - - - - 1.9 0.0 - 0.3 0.0 - - - - 296.0 1.6 1.0 - - - 296.3 1.6 1.0
3rd Party - - - - - - - - - - - - - - - - - - - - - - - -
Equipment Failure 97% 98% - - - - 100% 100% - 65% 11% - - - - 100% 100% - - - - 100% 100% -
Operation 0% 0% - - - - - - - 35% 89% - - - - - - - - - - 0% 0% -
Other 2% 2% - - - - - - - - - - - - - - - - - - - - - -
Vegetation/Animal - - - - - - - - - - - - - - - - - 100% - - - - - 100%
Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - - - - - - -
PSPS - - - - - - - - - - - - - - - - - - - - - - - -
Reliability Histories for Individual Circuits Serving Palmdale - 3 of 14
2016 2017 2018 1st Qtr 2019 2nd Qtr 2019 3rd Qtr 2019 4th Qtr 2019 2019
23
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
FARMS(12KV) - Customers: 2,360 65.9 0.8 1.3 2.3 0.0 1.0 9.3 0.0 2.0 3.1 0.0 - - - 1.0 3.5 0.0 - - - - 6.6 0.1 1.0
3rd Party - - - - - - 11% 6% 50% - - - - - - - - - - - - - - -
Equipment Failure 96% 95% 100% 10% 5% - 77% 75% - 100% 100% - - - - 100% 100% - - - - 100% 100% -
Operation 4% 5% - 90% 95% - 12% 19% - - - - - - - - - - - - - - - -
Other - - - - - 100% - - 50% - - - - - 100% - - - - - - - - 100%
Vegetation/Animal - - - - - - - - - - - - - - - - - - - - - - - -
Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - - - - - - -
PSPS - - - - - - - - - - - - - - - - - - - - - - - -
FORAGE(12KV) - Customers: 167 12.0 0.3 - 57.4 0.4 2.0 165.6 0.2 2.0 11.1 0.1 1.0 83.2 0.6 1.6 - - - - - - 94.3 0.7 2.6
3rd Party - - - 10% 54% 100% - - 100% - - 100% - - - - - - - - - - - 39%
Equipment Failure 13% 2% - 84% 41% - 1% 5% - - - - - - - - - - - - - - - -
Operation 87% 98% - 6% 6% - 98% 93% - - - - 11% 36% - - - - - - - 10% 32% -
Other - - - - - - 1% 2% - - - - - - 16% - - - - - - - - 10%
Vegetation/Animal - - - - - - - - - - - - 89% 64% 84% - - - - - - 79% 57% 51%
Weather/Fire/Earthquake - - - - - - - - - 100% 100% - - - - - - - - - - 12% 10% -
PSPS - - - - - - - - - - - - - - - - - - - - - - - -
GODDE(12KV) - Customers: 1,730 206.5 0.6 0.6 89.9 0.3 1.0 128.9 1.4 0.7 0.2 0.0 - 32.4 0.4 - - - - 28.9 0.4 1.0 61.6 0.8 1.0
3rd Party - - - - - - 27% 25% 94% - - - - - - - - - - - - - - -
Equipment Failure 29% 15% - 74% 52% 100% 73% 75% 6% 100% 100% - 100% 100% - - - - - - - 53% 44% -
Operation 18% 14% - 26% 48% - - - - - - - - - - - - - 89% 20% - 42% 11% -
Other 53% 71% 100% - - - - - - - - - - - - - - - - - - - - -
Vegetation/Animal - - - - - - - - - - - - - - - - - - - - - - - -
Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - 11% 80% 100% 5% 44% 100%
PSPS - - - - - - - - - - - - - - - - - - - - - - - -
HANGER(12KV) - Customers: 95 23.9 0.2 1.0 88.4 0.2 1.0 11.9 0.0 3.0 - - - 48.8 0.4 1.6 17.2 0.0 1.7 - - - 66.1 0.4 3.3
3rd Party - - 26% - - - - - 67% - - - 85% 95% 36% 100% 100% 100% - - - 89% 95% 70%
Equipment Failure - - - 8% 21% - 14% 33% - - - - 15% 5% - - - - - - - 11% 5% -
Operation 100% 100% 74% 92% 79% - - - - - - - - - - - - - - - - - - -
Other - - - - - 100% - - 33% - - - - - 64% - - - - - - - - 30%
Vegetation/Animal - - - - - - 86% 67% - - - - - - - - - - - - - - - -
Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - - - - - - -
PSPS - - - - - - - - - - - - - - - - - - - - - - - -
Reliability Histories for Individual Circuits Serving Palmdale - 4 of 14
2016 2017 2018 1st Qtr 2019 2nd Qtr 2019 3rd Qtr 2019 4th Qtr 2019 2019
24
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
HEIGHTS(12KV) - Customers: 2,568 28.7 0.7 - 0.5 0.0 1.0 190.3 2.0 1.0 - - - 0.4 0.0 1.0 - - - - - - 0.4 0.0 1.0
3rd Party - - - - - - - - - - - - - - - - - - - - - - - -
Equipment Failure 7% 4% - 97% 75% - 100% 100% - - - - - - - - - - - - - - - -
Operation 93% 96% - 3% 25% - - - - - - - 100% 100% - - - - - - - 100% 100% -
Other - - - - - - - - 100% - - - - - 100% - - - - - - - - 100%
Vegetation/Animal - - - - - 100% - - - - - - - - - - - - - - - - - -
Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - - - - - - -
PSPS - - - - - - - - - - - - - - - - - - - - - - - -
HUCKLEBERRY(12KV) - Customers: 174 1.8 0.0 1.4 31.9 0.4 2.0 150.8 1.6 4.0 - - - 3.9 0.0 - - - - 6358.4 3.6 1.8 6362.3 3.6 1.8
3rd Party - - - 8% 2% 100% - - - - - - - - - - - - - - - - - -
Equipment Failure 100% 100% - - - - 2% 1% 50% - - - 100% 100% - - - - 4% 11% 45% 4% 11% 45%
Operation - - - 92% 98% - - - - - - - - - - - - - 5% 4% - 5% 4% -
Other - - 100% - - - - - 50% - - - - - - - - - - - 55% - - 55%
Vegetation/Animal - - - - - - - - - - - - - - - - - - - - - - - -
Weather/Fire/Earthquake - - - - - - 98% 99% - - - - - - - - - - - - - - - -
PSPS - - - - - - - - - - - - - - - - - - 91% 85% - 91% 85% -
INVENTION(12KV) - Customers: 2,025 48.7 1.0 1.0 24.3 0.2 2.0 - - - - - - - - 2.0 - - - 4.1 0.0 - 4.1 0.0 2.0
3rd Party - - 100% - - - - - - - - - - - - - - - - - - - - -
Equipment Failure 84% 96% - 8% 1% 49% - - - - - - - - - - - - 100% 100% - 100% 100% -
Operation 16% 4% - 92% 99% 2% - - - - - - - - - - - - - - - - - -
Other - - - - - 49% - - - - - - - - 50% - - - - - - - - 50%
Vegetation/Animal - - - - - - - - - - - - - - 50% - - - - - - - - 50%
Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - - - - - - -
PSPS - - - - - - - - - - - - - - - - - - - - - - - -
KONOBIE(12KV) - Customers: 1,651 0.5 0.0 1.0 130.2 1.5 0.6 37.0 0.1 0.0 - - - 3.8 0.0 - - - 1.0 - - - 3.8 0.0 1.0
3rd Party - - - 1% 2% 5% - - - - - - - - - - - - - - - - - -
Equipment Failure - - - 99% 98% 95% 22% 26% - - - - - - - - - - - - - - - -
Operation - - - - - - 78% 74% 100% - - - 100% 100% - - - - - - - 100% 100% -
Other - - - - - - - - - - - - - - - - - - - - - - - -
Vegetation/Animal 100% 100% 100% - - - - - - - - - - - - - - 100% - - - - - 100%
Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - - - - - - -
PSPS - - - - - - - - - - - - - - - - - - - - - - - -
Reliability Histories for Individual Circuits Serving Palmdale - 5 of 14
2016 2017 2018 1st Qtr 2019 2nd Qtr 2019 3rd Qtr 2019 4th Qtr 2019 2019
25
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
LASKER(12KV) - Customers: 1,888 11.9 0.0 0.1 227.7 1.2 0.2 4.1 0.0 1.6 - - - 5.5 0.0 - 1.9 0.0 0.0 12.1 0.0 - 19.5 0.1 0.0
3rd Party 10% 23% - 87% 85% 55% 43% 37% 4% - - - 5% 2% - - - - - - - 1% 1% -
Equipment Failure 6% 8% - 7% 7% - 5% 1% - - - - 95% 98% - - - - 6% 9% - 31% 47% -
Operation 84% 69% - 6% 8% - 5% 1% - - - - - - - 91% 97% - 1% 5% - 9% 32% -
Other - - 100% - - 45% - - 62% - - - - - - - - - 93% 86% - 58% 19% -
Vegetation/Animal - - - - - - - - - - - - - - - - - - - - - - - -
Weather/Fire/Earthquake - - - - - - 47% 60% 34% - - - - - - 9% 3% 100% - - - 1% 1% 100%
PSPS - - - - - - - - - - - - - - - - - - - - - - - -
LEDFORD(12KV) - Customers: 2,256 - - - - - - 32.5 1.0 - - - - - - - 6.4 0.0 - - - 1.0 6.4 0.0 1.0
3rd Party - - - - - - - - - - - - - - - - - - - - 100% - - 100%
Equipment Failure - - - - - - 100% 100% - - - - - - - 100% 100% - - - - 100% 100% -
Operation - - - - - - 0% 0% - - - - - - - - - - - - - - - -
Other - - - - - - - - - - - - - - - - - - - - - - - -
Vegetation/Animal - - - - - - - - - - - - - - - - - - - - - - - -
Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - - - - - - -
PSPS - - - - - - - - - - - - - - - - - - - - - - - -
LEONA(12KV) - Customers: 1,173 113.1 1.0 1.0 24.7 0.2 1.0 1.0 0.0 3.0 - - - - - - - - - - - - - - -
3rd Party - - - - - - - - - - - - - - - - - - - - - - - -
Equipment Failure - - - 39% 17% - 46% 77% - - - - - - - - - - - - - - - -
Operation - - - 44% 56% - 54% 23% 67% - - - - - - - - - - - - - - -
Other 100% 100% 100% 16% 28% - - - 33% - - - - - - - - - - - - - - -
Vegetation/Animal - - - - - 100% - - - - - - - - - - - - - - - - - -
Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - - - - - - -
PSPS - - - - - - - - - - - - - - - - - - - - - - - -
LUPINE(12KV) - Customers: 489 40.8 0.1 - 71.9 1.0 1.0 319.6 1.6 1.8 0.6 0.0 - - - 1.0 - - - - - - 0.6 0.0 1.0
3rd Party - - - 98% 98% 100% - - - - - - - - - - - - - - - - - -
Equipment Failure 100% 100% - 2% 2% - 100% 100% 43% 100% 100% - - - - - - - - - - 100% 100% -
Operation - - - - - - - - - - - - - - - - - - - - - - - -
Other - - - - - - - - 57% - - - - - 100% - - - - - - - - 100%
Vegetation/Animal - - - - - - - - - - - - - - - - - - - - - - - -
Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - - - - - - -
PSPS - - - - - - - - - - - - - - - - - - - - - - - -
Reliability Histories for Individual Circuits Serving Palmdale - 6 of 14
2016 2017 2018 1st Qtr 2019 2nd Qtr 2019 3rd Qtr 2019 4th Qtr 2019 2019
26
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
MARK(12KV) - Customers: 2,061 - - - 0.1 0.0 - 24.3 0.1 - - - - 6.5 0.0 - - - - 0.3 0.0 1.0 6.8 0.1 1.0
3rd Party - - - - - - - - - - - - - - - - - - - - - - - -
Equipment Failure - - - - - - 100% 100% - - - - 100% 100% - - - - - - - 95% 88% -
Operation - - - 100% 100% - - - - - - - - - - - - - 100% 100% - 5% 12% -
Other - - - - - - - - - - - - - - - - - - - - 100% - - 100%
Vegetation/Animal - - - - - - - - - - - - - - - - - - - - - - - -
Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - - - - - - -
PSPS - - - - - - - - - - - - - - - - - - - - - - - -
NASA(12KV) - Customers: 784 0.4 0.0 - 2.4 0.0 - 0.7 0.0 - 97.5 0.5 0.5 - - - - - 1.0 16.5 0.1 - 114.0 0.6 1.5
3rd Party - - - - - - - - - - - - - - - - - - - - - - - -
Equipment Failure 100% 100% - 100% 100% - 75% 75% - - - - - - - - - - 66% 83% - 10% 12% -
Operation - - - - - - 25% 25% - - - - - - - - - - 4% 6% - 1% 1% -
Other - - - - - - - - - - - - - - - - - - 30% 11% - 4% 2% -
Vegetation/Animal - - - - - - - - - - - - - - - - - 100% - - - - - 69%
Weather/Fire/Earthquake - - - - - - - - - 100% 100% 100% - - - - - - - - - 86% 86% 31%
PSPS - - - - - - - - - - - - - - - - - - - - - - - -
PADDY(12KV) - Customers: 1,352 9.9 0.0 1.0 26.4 1.0 2.0 76.3 0.1 2.9 - - - - - - - - - - - - - - -
3rd Party - - 100% 92% 99% 50% - - 35% - - - - - - - - - - - - - - -
Equipment Failure - - - - - - 100% 100% 32% - - - - - - - - - - - - - - -
Operation - - - - - - - - - - - - - - - - - - - - - - - -
Other 100% 100% - 8% 1% - - - 33% - - - - - - - - - - - - - - -
Vegetation/Animal - - - - - 50% - - - - - - - - - - - - - - - - - -
Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - - - - - - -
PSPS - - - - - - - - - - - - - - - - - - - - - - - -
PAINT(12KV) - Customers: 2,516 89.7 1.4 2.2 16.7 0.1 1.0 27.0 0.1 1.0 - - - 14.3 0.1 - 12.0 0.1 - - - - 26.3 0.2 -
3rd Party 100% 100% 100% - - - - - - - - - - - - - - - - - - - - -
Equipment Failure - - - - - - 100% 100% 100% - - - 100% 100% - 100% 100% - - - - 100% 100% -
Operation - - - 100% 100% 100% - - - - - - - - - - - - - - - - - -
Other - - - - - - - - - - - - - - - - - - - - - - - -
Vegetation/Animal - - - - - - - - - - - - - - - - - - - - - - - -
Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - - - - - - -
PSPS - - - - - - - - - - - - - - - - - - - - - - - -
Reliability Histories for Individual Circuits Serving Palmdale - 7 of 14
2016 2017 2018 1st Qtr 2019 2nd Qtr 2019 3rd Qtr 2019 4th Qtr 2019 2019
27
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
PEARLAND(12KV) - Customers: 2,236 - - - 92.2 1.1 1.0 37.7 0.1 1.0 - - - - - - 120.2 1.8 - - - - 120.2 1.8 -
3rd Party - - - - - - 4% 2% 100% - - - - - - - - - - - - - - -
Equipment Failure - - - 13% 5% - 67% 49% - - - - - - - 100% 100% - - - - 100% 100% -
Operation - - - - - - 29% 49% - - - - - - - - - - - - - - - -
Other - - - 87% 95% 100% - - - - - - - - - - - - - - - - - -
Vegetation/Animal - - - - - - - - - - - - - - - - - - - - - - - -
Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - - - - - - -
PSPS - - - - - - - - - - - - - - - - - - - - - - - -
PELONA(12KV) - Customers: 1,472 - - - - - 1.0 1.7 0.0 - - - - - - - - - - - - - - - -
3rd Party - - - - - - - - - - - - - - - - - - - - - - - -
Equipment Failure - - - - - - 37% 47% - - - - - - - - - - - - - - - -
Operation - - - - - - - - - - - - - - - - - - - - - - - -
Other - - - - - - - - - - - - - - - - - - - - - - - -
Vegetation/Animal - - - - - 100% 63% 53% - - - - - - - - - - - - - - - -
Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - - - - - - -
PSPS - - - - - - - - - - - - - - - - - - - - - - - -
QUINBY(12KV) - Customers: 2,816 0.7 0.0 1.0 257.1 2.5 2.1 36.2 0.5 2.0 5.1 0.0 - 0.4 0.0 - - - - - - - 5.5 0.0 -
3rd Party - - 100% 1% 2% - 73% 86% 27% - - - - - - - - - - - - - - -
Equipment Failure 100% 100% - 99% 97% 52% 16% 7% - 100% 100% - 72% 59% - - - - - - - 98% 90% -
Operation - - - 0% 0% - 11% 7% 73% - - - - - - - - - - - - - - -
Other - - - - - 48% - - - - - - - - - - - - - - - - - -
Vegetation/Animal - - - - - - - - - - - - 28% 41% - - - - - - - 2% 10% -
Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - - - - - - -
PSPS - - - - - - - - - - - - - - - - - - - - - - - -
RAYBURN(12KV) - Customers: 1,466 1.0 0.0 - - - 4.0 43.0 0.3 2.9 12.7 0.0 - 3.1 0.0 - 8.8 0.1 1.0 27.9 0.0 1.0 52.4 0.2 2.0
3rd Party - - - - - - 14% 26% 32% - - - - - - - - - - - - - - -
Equipment Failure 100% 100% - - - - 86% 74% 34% 100% 100% - 99% 96% - 6% 4% - 97% 91% - 83% 52% -
Operation - - - - - - - - - - - - 1% 4% - - - - - - - 0% 1% -
Other - - - - - 75% - - 34% - - - - - - 94% 96% 100% 3% 9% 100% 17% 48% 100%
Vegetation/Animal - - - - - 25% - - - - - - - - - - - - - - - - - -
Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - - - - - - -
PSPS - - - - - - - - - - - - - - - - - - - - - - - -
Reliability Histories for Individual Circuits Serving Palmdale - 8 of 14
2016 2017 2018 1st Qtr 2019 2nd Qtr 2019 3rd Qtr 2019 4th Qtr 2019 2019
28
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
RAZOR(12KV) - Customers: 1,278 4.1 0.1 - 0.3 0.0 - 262.3 0.6 1.4 - - - - - - 4.2 0.0 - 0.7 0.0 1.0 4.9 0.0 1.0
3rd Party - - - 100% 100% - 1% 1% 72% - - - - - - - - - - - 100% - - 100%
Equipment Failure - - - - - - 30% 35% 28% - - - - - - 100% 100% - 100% 100% - 100% 100% -
Operation 100% 100% - - - - 69% 64% - - - - - - - - - - - - - - - -
Other - - - - - - - - - - - - - - - - - - - - - - - -
Vegetation/Animal - - - - - - - - - - - - - - - - - - - - - - - -
Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - - - - - - -
PSPS - - - - - - - - - - - - - - - - - - - - - - - -
RITTER(12KV) - Customers: 402 - - 2.0 0.7 0.0 2.0 - - - - - - - - - - - - - - - - - -
3rd Party - - - - - - - - - - - - - - - - - - - - - - - -
Equipment Failure - - 100% 100% 100% - - - - - - - - - - - - - - - - - - -
Operation - - - - - - - - - - - - - - - - - - - - - - - -
Other - - - - - 100% - - - - - - - - - - - - - - - - - -
Vegetation/Animal - - - - - - - - - - - - - - - - - - - - - - - -
Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - - - - - - -
PSPS - - - - - - - - - - - - - - - - - - - - - - - -
SHOVEL(12KV) - Customers: 782 163.2 2.3 1.1 116.0 0.2 2.1 98.6 0.4 2.2 1.9 0.0 1.0 4.3 0.0 1.0 1.0 0.0 - 5504.2 3.3 - 5511.4 3.4 2.0
3rd Party 56% 32% - 94% 87% 25% - - - - - - 18% 7% - - - - - - - 0% 0% -
Equipment Failure 43% 68% - 5% 9% 50% 17% 18% 44% - - - 11% 40% - 20% 25% - 0% 0% - 0% 0% -
Operation 0% 0% - - - - 78% 74% 11% 7% 25% - 14% 33% - 37% 38% - 0% 1% - 0% 1% -
Other - - 100% 1% 4% 25% 5% 8% - - - 100% 57% 20% - 43% 38% - - - - 0% 0% 50%
Vegetation/Animal 0% 0% - 0% 1% - - - 44% - - - - - 100% - - - 1% 16% - 1% 16% 50%
Weather/Fire/Earthquake - - - - - - - - - 93% 75% - - - - - - - - - - 0% 0% -
PSPS - - - - - - - - - - - - - - - - - - 99% 83% - 99% 82% -
SHOWDOWN(12KV) - Customers: 1,368 39.1 1.0 3.0 1.1 0.0 1.0 33.8 0.2 0.9 0.7 0.0 1.0 0.6 0.0 - - - - 14.1 0.1 1.0 15.4 0.1 2.0
3rd Party - - 67% - - 100% - - - - - 100% - - - - - - - - - - - 50%
Equipment Failure 100% 100% - 100% 100% - 99% 92% 100% 100% 100% - - - - - - - 72% 53% - 70% 52% -
Operation - - - - - - 1% 8% - - - - - - - - - - 28% 47% - 26% 40% -
Other - - 33% - - - - - - - - - - - - - - - - - 100% - - 50%
Vegetation/Animal - - - - - - - - - - - - - - - - - - - - - - - -
Weather/Fire/Earthquake - - - - - - - - - - - - 100% 100% - - - - - - - 4% 8% -
PSPS - - - - - - - - - - - - - - - - - - - - - - - -
Reliability Histories for Individual Circuits Serving Palmdale - 9 of 14
2016 2017 2018 1st Qtr 2019 2nd Qtr 2019 3rd Qtr 2019 4th Qtr 2019 2019
29
CircuitHistory10SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI
SIMS(12KV) - Customers: 1,617 563.9 1.6 2.0 39.9 0.8 1.0 4.3 0.3 0.4 0.3 0.0 - - - - - - - - - - 0.3 0.0 -
3rd Party 46% 33% 50% 97% 99% 100% - - - - - - - - - - - - - - - - - -
Equipment Failure 6% 4% - - - - - - - - - - - - - - - - - - - - - -
Operation 48% 63% 50% 3% 1% - 100% 100% 100% 100% 100% - - - - - - - - - - 100% 100% -
Other - - - - - - - - - - - - - - - - - - - - - - - -
Vegetation/Animal - - - - - - - - - - - - - - - - - - - - - - - -
Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - - - - - - -
PSPS - - - - - - - - - - - - - - - - - - - - - - - -
SKYWALKER(12KV) - Customers: 1,894 - - - 31.0 0.1 1.0 0.1 0.0 - - - - 1.8 0.0 - - - 1.0 - - - 1.8 0.0 1.0
3rd Party - - - - - - - - - - - - - - - - - - - - - - - -
Equipment Failure - - - - - - 100% 100% - - - - 100% 100% - - - - - - - 100% 100% -
Operation - - - 100% 100% - - - - - - - - - - - - - - - - - - -
Other - - - - - 100% - - - - - - - - - - - - - - - - - -
Vegetation/Animal - - - - - - - - - - - - - - - - - 100% - - - - - 100%
Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - - - - - - -
PSPS - - - - - - - - - - - - - - - - - - - - - - - -
SPUR(12KV) - Customers: 2,177 213.1 2.3 - 33.9 1.0 - 78.5 1.2 - - - 1.0 - - - 8.6 0.0 - 35.3 1.0 - 43.9 1.0 1.0
3rd Party 27% 44% - - - - - - - - - 100% - - - - - - 100% 100% - 80% 98% 100%
Equipment Failure 70% 54% - 92% 98% - 100% 100% - - - - - - - 100% 100% - - - - 20% 2% -
Operation 3% 2% - 8% 2% - - - - - - - - - - - - - - - - - - -
Other - - - - - - - - - - - - - - - - - - - - - - - -
Vegetation/Animal - - - - - - - - - - - - - - - - - - - - - - - -
Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - - - - - - -
PSPS - - - - - - - - - - - - - - - - - - - - - - - -
STEALTH(12KV) - Customers: 2,581 0.9 0.0 - 120.4 2.0 - 13.4 1.0 3.0 3.0 0.0 0.3 4.2 0.0 1.0 0.7 0.0 1.0 1.5 0.0 0.3 9.4 0.1 2.6
3rd Party - - - 0% 0% - 1% 0% 33% - - 100% 100% 100% - - - - - - - 44% 37% 11%
Equipment Failure - - - 1% 0% - 5% 1% 33% 100% 100% - - - - 100% 100% - 100% 100% 100% 56% 63% 11%
Operation - - - - - - 94% 99% - - - - - - - - - - - - - - - -
Other - - - 99% 100% - - - 34% - - - - - 100% - - 100% - - - - - 77%
Vegetation/Animal 100% 100% - - - - - - - - - - - - - - - - - - - - - -
Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - - - - - - -
PSPS - - - - - - - - - - - - - - - - - - - - - - - -
Reliability Histories for Individual Circuits Serving Palmdale - 10 of 14
2016 2017 2018 1st Qtr 2019 2nd Qtr 2019 3rd Qtr 2019 4th Qtr 2019 2019
30
CircuitHistory11SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI
STING(12KV) - Customers: 2,544 232.8 1.0 - 126.9 1.4 2.0 6.1 0.1 0.0 - - - 171.6 1.0 0.2 17.7 0.1 - - - - 189.3 1.1 0.2
3rd Party - - - - - - - - - - - - - - - - - - - - - - - -
Equipment Failure 100% 100% - 88% 92% 50% 100% 100% 100% - - - 100% 100% 100% 100% 100% - - - - 100% 100% 100%
Operation - - - 2% 4% 50% - - - - - - - - - - - - - - - - - -
Other - - - 9% 4% - - - - - - - - - - - - - - - - - - -
Vegetation/Animal - - - 1% 1% - - - - - - - - - - - - - - - - - - -
Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - - - - - - -
PSPS - - - - - - - - - - - - - - - - - - - - - - - -
SUBIDA(12KV) - Customers: 1,425 - - - 1.3 0.0 2.0 - - 1.0 2.0 0.0 - 3.0 0.0 - - - - 6.9 0.0 1.2 11.9 0.1 1.2
3rd Party - - - - - 50% - - 100% - - - 100% 100% - - - - - - - 25% 64% -
Equipment Failure - - - 100% 100% - - - - 100% 100% - - - - - - - 100% 100% 100% 75% 36% 100%
Operation - - - - - - - - - - - - - - - - - - - - - - - -
Other - - - - - - - - - - - - - - - - - - - - - - - -
Vegetation/Animal - - - - - 50% - - - - - - - - - - - - - - - - - -
Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - - - - - - -
PSPS - - - - - - - - - - - - - - - - - - - - - - - -
SUN VILLAGE(12KV) - Customers: 1,511 185.1 1.6 1.7 75.3 0.6 2.3 88.2 0.9 3.5 62.9 0.6 0.4 27.1 0.1 1.1 10.6 0.1 0.3 0.1 0.0 - 100.7 0.7 1.8
3rd Party 77% 83% 60% 87% 82% 44% 29% 29% 52% 32% 53% 75% 92% 82% - 1% 1% - - - - 45% 52% 19%
Equipment Failure 2% 1% - - - - 1% 1% 31% 1% 2% - 6% 14% - 1% 2% - - - - 2% 3% -
Operation 18% 12% 26% 5% 3% 7% 68% 63% 8% 59% 44% 25% 0% 1% - 2% 10% - 100% 100% - 37% 37% 6%
Other 3% 4% 14% 8% 15% 5% 2% 7% 10% 7% 1% - 2% 3% 6% 96% 87% 100% - - - 15% 7% 19%
Vegetation/Animal - - - - - 44% 0% 0% - 2% 0% - - - 94% - - - - - - 1% 0% 56%
Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - - - - - - -
PSPS - - - - - - - - - - - - - - - - - - - - - - - -
TAWNA(12KV) - Customers: 1 - - - - - - - - - - - - - - - - - - - - - - - -
3rd Party - - - - - - - - - - - - - - - - - - - - - - - -
Equipment Failure - - - - - - - - - - - - - - - - - - - - - - - -
Operation - - - - - - - - - - - - - - - - - - - - - - - -
Other - - - - - - - - - - - - - - - - - - - - - - - -
Vegetation/Animal - - - - - - - - - - - - - - - - - - - - - - - -
Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - - - - - - -
PSPS - - - - - - - - - - - - - - - - - - - - - - - -
Reliability Histories for Individual Circuits Serving Palmdale - 11 of 14
2016 2017 2018 1st Qtr 2019 2nd Qtr 2019 3rd Qtr 2019 4th Qtr 2019 2019
31
CircuitHistory12SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI
THORNBURG(12KV) - Customers: 1,819 130.1 2.1 2.0 53.9 0.5 0.7 31.4 0.3 1.7 9.0 0.1 - 0.5 0.0 - - - - - - - 9.6 0.1 -
3rd Party 97% 98% 100% 51% 63% 100% 100% 100% 41% 32% 40% - - - - - - - - - - 30% 30% -
Equipment Failure - - - 21% 16% - - - - 68% 60% - 100% 100% - - - - - - - 70% 70% -
Operation 3% 2% - 23% 13% - - - - - - - - - - - - - - - - - - -
Other - - - 5% 8% - - - 59% - - - - - - - - - - - - - - -
Vegetation/Animal - - - - - - - - - - - - - - - - - - - - - - - -
Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - - - - - - -
PSPS - - - - - - - - - - - - - - - - - - - - - - - -
THUNDERBOLT(12KV) - Customers: 1,868 - - - 42.4 0.5 1.0 26.0 0.1 2.0 - - - - - 1.0 - - - 0.1 0.0 - 0.1 0.0 1.0
3rd Party - - - 98% 100% - 50% 66% 50% - - - - - - - - - - - - - - -
Equipment Failure - - - 2% 0% - 50% 34% - - - - - - - - - - 100% 100% - 100% 100% -
Operation - - - - - - - - - - - - - - - - - - - - - - - -
Other - - - - - 100% - - 50% - - - - - 100% - - - - - - - - 100%
Vegetation/Animal - - - - - - - - - - - - - - - - - - - - - - - -
Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - - - - - - -
PSPS - - - - - - - - - - - - - - - - - - - - - - - -
TIERRA BONITA(12KV) - Customers: 17 298.1 1.1 3.0 - - 6.0 635.2 1.1 0.9 - - - 88.0 0.4 - - - - - - - 88.0 0.4 -
3rd Party 45% 15% 34% - - - 97% 95% - - - - - - - - - - - - - - - -
Equipment Failure - - - - - 17% 3% 5% 100% - - - - - - - - - - - - - - -
Operation - - - - - - - - - - - - - - - - - - - - - - - -
Other 55% 85% 66% - - - - - - - - - - - - - - - - - - - - -
Vegetation/Animal - - - - - 17% - - - - - - - - - - - - - - - - - -
Weather/Fire/Earthquake - - - - - 67% - - - - - - 100% 100% - - - - - - - 100% 100% -
PSPS - - - - - - - - - - - - - - - - - - - - - - - -
TITAN(12KV) - Customers: 1,506 292.6 3.6 8.1 134.0 2.2 9.9 41.3 0.6 3.7 28.0 0.2 0.6 58.2 0.5 - 4.1 0.1 0.1 538.0 1.7 1.0 628.3 2.5 1.7
3rd Party 27% 45% 17% 3% 0% - 96% 99% - - - - - - - - - - 69% 59% - 59% 40% -
Equipment Failure 1% 0% - 35% 36% 8% 4% 1% 31% 64% 91% - 62% 78% - 53% 49% 100% 11% 2% 85% 18% 27% 54%
Operation 1% 1% 4% 1% 1% - - - - - - - 38% 21% - - - - 0% 0% - 4% 5% -
Other 58% 36% 61% 61% 64% 46% - - 26% 19% 6% 100% 0% 0% - 47% 51% - 4% 3% 15% 4% 5% 46%
Vegetation/Animal - - - - - 10% - - 16% - - - 0% 0% - - - - 16% 35% - 14% 24% -
Weather/Fire/Earthquake 12% 17% 18% - - 36% - - 27% 17% 3% - - - - - - - 0% 0% - 1% 0% -
PSPS - - - - - - - - - - - - - - - - - - - - - - - -
Reliability Histories for Individual Circuits Serving Palmdale - 12 of 14
2016 2017 2018 1st Qtr 2019 2nd Qtr 2019 3rd Qtr 2019 4th Qtr 2019 2019
32
CircuitHistory13SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI
TOMCAT(12KV) - Customers: 2,258 - - - 5.2 0.0 2.0 1.2 0.0 1.1 - - - - - 1.0 2.3 0.0 - - - - 2.3 0.0 1.0
3rd Party - - - - - - - - 7% - - - - - - - - - - - - - - -
Equipment Failure - - - - - - - - - - - - - - - 100% 100% - - - - 100% 100% -
Operation - - - 100% 100% 50% 100% 100% - - - - - - - - - - - - - - - -
Other - - - - - - - - 93% - - - - - 100% - - - - - - - - 100%
Vegetation/Animal - - - - - 50% - - - - - - - - - - - - - - - - - -
Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - - - - - - -
PSPS - - - - - - - - - - - - - - - - - - - - - - - -
TWAIN(12KV) - Customers: 1,178 18.5 0.1 - 68.2 1.1 4.0 141.5 1.5 1.7 13.6 0.1 - - - 0.0 - - 1.2 37.1 0.7 0.3 50.8 0.8 1.5
3rd Party - - - - - 25% - - - - - - - - 100% - - 100% - - - - - 77%
Equipment Failure 1% 1% - 20% 4% 25% 83% 88% 41% 3% 1% - - - - - - - 55% 63% 100% 41% 54% 23%
Operation - - - 76% 92% 25% 17% 12% - - - - - - - - - - 4% 18% - 3% 15% -
Other 6% 5% - 5% 4% 25% - - - 97% 99% - - - - - - - 42% 19% - 56% 31% -
Vegetation/Animal 93% 94% - - - - - - 59% - - - - - - - - - - - - - - -
Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - - - - - - -
PSPS - - - - - - - - - - - - - - - - - - - - - - - -
VADAR(12KV) - Customers: 951 52.0 0.1 - 298.4 1.0 1.3 1.3 0.0 - 22.6 0.1 - - - - - - 1.0 3.5 0.0 - 26.1 0.1 1.0
3rd Party - - - - - 78% - - - - - - - - - - - - - - - - - -
Equipment Failure 100% 100% - 96% 97% 22% 28% 22% - 81% 94% - - - - - - - - - - 70% 69% -
Operation - - - 4% 3% - 41% 44% - - - - - - - - - - 2% 3% - 0% 1% -
Other - - - - - - - - - - - - - - - - - - - - - - - -
Vegetation/Animal - - - - - - - - - - - - - - - - - 100% 98% 97% - 13% 26% 100%
Weather/Fire/Earthquake - - - - - - 31% 33% - 19% 6% - - - - - - - - - - 17% 5% -
PSPS - - - - - - - - - - - - - - - - - - - - - - - -
WHIP(12KV) - Customers: 1,781 72.4 1.0 1.0 35.3 0.3 1.0 101.3 2.0 - 4.5 0.1 - - - - 0.6 0.0 - 9.4 0.0 - 14.5 0.1 -
3rd Party - - - - - - 2% 0% - - - - - - - - - - - - - - - -
Equipment Failure 100% 100% - 100% 100% 100% 95% 100% - 93% 84% - - - - 100% 100% - 100% 100% - 98% 88% -
Operation - - 100% - - - 3% 0% - - - - - - - - - - - - - - - -
Other - - - - - - - - - - - - - - - - - - - - - - - -
Vegetation/Animal - - - - - - - - - 7% 16% - - - - - - - - - - 2% 12% -
Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - - - - - - -
PSPS - - - - - - - - - - - - - - - - - - - - - - - -
Reliability Histories for Individual Circuits Serving Palmdale - 13 of 14
2016 2017 2018 1st Qtr 2019 2nd Qtr 2019 3rd Qtr 2019 4th Qtr 2019 2019
33
CircuitHistory14SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI
WOOKIE(12KV) - Customers: 687 - - - 72.5 1.0 - 2.4 0.0 - - - - - - - - - 1.0 9.5 0.1 - 9.5 0.1 1.0
3rd Party - - - - - - - - - - - - - - - - - - - - - - - -
Equipment Failure - - - 91% 94% - 5% 3% - - - - - - - - - - 100% 100% - 100% 100% -
Operation - - - 1% 0% - - - - - - - - - - - - - - - - - - -
Other - - - 8% 5% - 95% 97% - - - - - - - - - - - - - - - -
Vegetation/Animal - - - - - - - - - - - - - - - - - 100% - - - - - 100%
Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - - - - - - -
PSPS - - - - - - - - - - - - - - - - - - - - - - - -
YODA(12KV) - Customers: 810 - - 1.0 115.1 1.2 - 4.1 0.0 - - - - - - - - - 1.0 37.9 0.4 - 37.9 0.4 1.0
3rd Party - - 100% - - - 81% 94% - - - - - - - - - - - - - - - -
Equipment Failure - - - 68% 85% - 19% 6% - - - - - - - - - - - - - - - -
Operation - - - 12% 9% - - - - - - - - - - - - - - - - - - -
Other - - - - - - - - - - - - - - - - - - - - - - - -
Vegetation/Animal - - - 20% 6% - - - - - - - - - - - - 100% 1% 0% - 1% 0% 100%
Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - - 99% 100% - 99% 100% -
PSPS - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - - - - - - - - - - - - -
Reliability Histories for Individual Circuits Serving Palmdale - 14 of 14
2016 2017 2018 1st Qtr 2019 2nd Qtr 2019 3rd Qtr 2019 4th Qtr 2019 2019
34
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