PowerPoint Presentation · Major Event Day (MED) : A day in which the daily system SAIDI exceeds a...
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Circuit Reliability Review
Blythe
2020
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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
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
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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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• 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
Reliability Overview
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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.
How Do We Measure Reliability?
SAIDI SAIFI MAIFI CAIDI
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CityList1Communities in the BLYTHE District
NEEDLES LANDING
NEIGHBORS
PALO VERDE
PARKER DAM
CHEMEHUEVI INDIAN TRIBE
COLORADO RIVER INDIAN TRIBES
DESERT CENTER
HAVASU HEIGHTS
HAVASU LAKE
HAVASU LANDING
BLYTHE
RIPLEY
ROADS END
IMPERIAL COUNTY
HAVASU PALMS
LAKE HAVASU
LAKE TAMARISK
MESA VERDE
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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 BlytheThere are 15 circuits that serve Blythe 1
Circuit Type Customers Circuit Type Customers Circuit Type Customers Circuit Type Customers
BIGLER(4.8KV) 177 - - -
BOGEY(12KV) 262 - - -
BRUCE PARK(4.8KV) 364 - - -
CHANSLOR(33KV) 5 - - -
DATE(12KV) 522 - - -
DEL JUAN(12KV) 335 - - -
ELHERS(4.8KV) 313 - - -
LEAK(12KV) 398 - - -
LETTUCE(12KV) 388 - - -
MC COY(33KV) 2 - - -
MELON(12KV) 1,444 - - -
ONION(12KV) 1,481 - - -
RIVER BEND(12KV) 561 - - -
WEDGE(12KV) 436 - - -
WINTERS(12KV) 17 - - -
- - - -
- - - -
- - - -
- - - -
- - - -
- - - -
- - - -
- - - -
- - - -
- - - -
- - - -
- - - -
- - - -
- - - -
- - - -
Grand Total 6,705
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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
Blythe
Reliability History of Circuits Serving Blythe (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.
203.9223.3
138.8153.0
134.5 139.7 136.8
178.0
0.0
50.0
100.0
150.0
200.0
250.0
2016 2017 2018 2019
SAIDI
(average
minutes of
sustained
interruptions)
2.2
1.21.1
1.4
1.1 1.2
0.9 1.0
0.0
0.5
1.0
1.5
2.0
2.5
SAIFI
(average
frequency of
sustained
interruptions)
4.0
2.01.6
1.1
1.61.8
1.4 1.4
0.0
1.0
2.0
3.0
4.0
5.0
MAIFI
(average
frequency of
momentary
interruptions)
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SAIDIChart
SAIDI = the cumulative amount of time the average customer is interrupted by “sustained” outages each year.
Causes of Repair Outages in Blythe
2019
3rd Party
1.9%
Equipment Failure
59.3%
Operation
22.0%
Other
0.5%
Weather /Fire
/Earthquake
16.3%
PSPS
0.0%
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
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SAIFIChart
SAIFI = the number of times the average customer is interrupted by “sustained” outages each year
Causes of Repair Outages in Blythe
2019
3rd Party
6.7%
Equipment Failure
77.2%
Operation
5.3%
Other
0.2%
Weather /Fire
/Earthquake
10.6%
PSPS
0.0%
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 Blythe
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
203.9 2.2 4.0 223.3 1.2 2.0 138.8 1.1 1.6 21.3 0.2 0.7 1.9 0.0 0.0 9.8 0.1 0.1 119.9 1.1 0.2 153.0 1.4 1.1
3rd Party 2% 1% 0% 7% 10% 11% 30% 32% 11% 13% 35% - - - 1% - - - 0% 3% - 2% 7% 0%
Equipment Failure 30% 14% 5% 34% 21% 4% 42% 39% 49% 26% 22% 11% 56% 38% 99% 63% 80% 30% 65% 85% 95% 59% 77% 33%
Operation 26% 34% - 9% 17% 5% 13% 11% 14% 2% 1% - 26% 40% - 32% 19% - 25% 5% - 22% 5% -
Other 7% 35% 65% 12% 32% 58% 1% 6% 20% 1% 1% 41% 3% 6% - 5% 0% 1% 0% 0% 5% 0% 0% 27%
Vegetation/Animal 0% 0% 2% 5% 8% 22% 7% 7% - - - 24% - - - - - - - - - - - 15%
Weather/Fire/Earthquake 36% 17% 27% 33% 12% - 7% 5% 6% 60% 42% 23% 16% 16% - - - 68% 10% 6% - 16% 11% 24%
PSPS - - - - - - - - - - - - - - - - - - - - - - - -
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
15 Circuits Serving Blythe -- Total Customers:
6,705
Average Reliability of 15 Circuits Serving Blythe
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.
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CircuitHistory1
SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI
BIGLER(4.8KV) - Customers: 177 8.3 1.0 2.0 10.0 0.0 - 45.1 1.2 2.0 1.7 0.0 - - - - - - - 28.9 1.0 - 30.7 1.0 -
3rd Party - - - - - - - - - - - - - - - - - - - - - - - -
Equipment Failure - - - - - - 52% 6% - - - - - - - - - - 100% 100% - 94% 98% -
Operation - - - 100% 100% - 19% 90% - - - - - - - - - - - - - - - -
Other 100% 100% 52% - - - 30% 4% 100% 100% 100% - - - - - - - - - - 6% 2% -
Vegetation/Animal - - - - - - - - - - - - - - - - - - - - - - - -
Weather/Fire/Earthquake - - 48% - - - - - - - - - - - - - - - - - - - - -
PSPS - - - - - - - - - - - - - - - - - - - - - - - -
BOGEY(12KV) - Customers: 262 543.9 5.0 6.0 297.2 2.1 - 14.9 0.1 3.6 124.4 0.9 0.1 - - 1.0 3.7 0.0 1.0 190.7 1.0 0.1 318.7 1.9 2.2
3rd Party - - - - - - - - 24% - - - - - - - - - - - - - - -
Equipment Failure 8% 20% 34% 69% 48% - - - 76% 100% 100% 100% - - 100% 100% 100% - 100% 100% 100% 100% 100% 55%
Operation 27% 40% - 25% 48% - - - - - - - - - - - - - - - - - - -
Other 2% 1% 33% 6% 4% - 70% 95% - - - - - - - - - - - - - - - -
Vegetation/Animal - - - - - - - - - - - - - - - - - - - - - - - -
Weather/Fire/Earthquake 63% 39% 33% - - - 30% 5% - - - - - - - - - 100% - - - - - 45%
PSPS - - - - - - - - - - - - - - - - - - - - - - - -
BRUCE PARK(4.8KV) - Customers: 364 9.1 1.0 2.0 168.7 1.0 - - - 0.1 - - 1.0 - - - - - - 28.1 1.0 - 28.1 1.0 1.0
3rd Party - - - 100% 100% - - - - - - - - - - - - - - - - - - -
Equipment Failure 13% 1% - - - - - - - - - - - - - - - - 100% 100% - 100% 100% -
Operation - - - - - - - - 100% - - - - - - - - - - - - - - -
Other 87% 99% 50% - - - - - - - - - - - - - - - - - - - - -
Vegetation/Animal - - - - - - - - - - - - - - - - - - - - - - - -
Weather/Fire/Earthquake - - 50% - - - - - - - - 100% - - - - - - - - - - - 100%
PSPS - - - - - - - - - - - - - - - - - - - - - - - -
CHANSLOR(33KV) - Customers: 5 1114.7 2.7 8.0 - - 5.0 - - 4.9 138.2 1.9 - 2.5 0.5 - - - 4.7 44.7 1.2 1.2 185.4 3.5 5.9
3rd Party 90% 38% - - - - - - - - - - - - - - - - - - - - - -
Equipment Failure - - 25% - - - - - - - - - - - - - - - - - 100% - - 20%
Operation - - - - - - - - - 77% 50% - 100% 100% - - - - - - - 59% 40% -
Other 1% 38% 75% - - 80% - - 100% 23% 50% - - - - - - 60% 100% 100% - 41% 60% 48%
Vegetation/Animal 10% 25% - - - 20% - - - - - - - - - - - - - - - - - -
Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - 40% - - - - - 32%
PSPS - - - - - - - - - - - - - - - - - - - - - - - -
Reliability Histories for Individual Circuits Serving Blythe - 1 of 4
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
DATE(12KV) - Customers: 522 190.3 3.2 6.0 35.8 0.1 2.1 187.0 1.6 1.0 6.8 0.0 1.9 - - - - - - 106.2 2.4 - 113.0 2.4 1.9
3rd Party 14% 1% 2% - - - 66% 61% - - - - - - - - - - 3% 17% - 3% 17% -
Equipment Failure 0% 0% - 11% 21% 48% 21% 33% 100% 100% 100% 48% - - - - - - 97% 83% - 97% 83% 48%
Operation 20% 63% - - - - - - - - - - - - - - - - - - - - - -
Other 49% 32% 83% - - 52% - - - - - - - - - - - - - - - - - -
Vegetation/Animal - - - - - - 13% 6% - - - 52% - - - - - - - - - - - 52%
Weather/Fire/Earthquake 16% 3% 15% 89% 79% - - - - - - - - - - - - - - - - - - -
PSPS - - - - - - - - - - - - - - - - - - - - - - - -
DEL JUAN(12KV) - Customers: 335 906.4 2.0 4.0 1262.1 5.1 12.0 366.2 2.0 3.0 18.0 1.0 1.0 - - - 3.4 0.0 - - - - 21.4 1.0 1.0
3rd Party - - - - - - 32% 49% - - - - - - - - - - - - - - - -
Equipment Failure 43% 49% - 11% 21% - 67% 51% - - - - - - - - - - - - - - - -
Operation 0% 1% - 0% 0% 17% - - - - - - - - - 100% 100% - - - - 16% 3% -
Other - - 100% 9% 39% 67% 2% 0% 33% - - - - - - - - - - - - - - -
Vegetation/Animal 0% 1% - 14% 20% 17% - - - - - - - - - - - - - - - - - -
Weather/Fire/Earthquake 56% 49% - 66% 20% - - - 67% 100% 100% 100% - - - - - - - - - 84% 97% 100%
PSPS - - - - - - - - - - - - - - - - - - - - - - - -
ELHERS(4.8KV) - Customers: 313 8.0 1.0 2.0 12.8 0.0 - - - - - - - 17.5 0.0 - - - - 29.1 1.0 - 46.7 1.0 -
3rd Party - - - - - - - - - - - - - - - - - - - - - - - -
Equipment Failure - - - 100% 100% - - - - - - - 100% 100% - - - - 100% 100% - 100% 100% -
Operation - - - - - - - - - - - - - - - - - - - - - - - -
Other 100% 100% 50% - - - - - - - - - - - - - - - - - - - - -
Vegetation/Animal - - - - - - - - - - - - - - - - - - - - - - - -
Weather/Fire/Earthquake - - 50% - - - - - - - - - - - - - - - - - - - - -
PSPS - - - - - - - - - - - - - - - - - - - - - - - -
LEAK(12KV) - Customers: 398 8.4 0.0 2.1 23.1 0.0 3.4 563.4 2.8 0.2 104.9 0.2 1.0 4.4 0.0 - 68.7 0.5 0.7 31.0 0.2 0.2 209.1 0.8 1.8
3rd Party - - - - - - - - - - - - - - - - - - - - - - - -
Equipment Failure 22% 8% - 7% 17% - 0% 0% 100% - - - 59% 45% - 100% 100% 100% 6% 3% - 35% 59% 38%
Operation 78% 92% - - - - 49% 35% - - - - 19% 27% - - - - - - - 0% 1% -
Other - - 100% 93% 83% 100% 0% 0% - - - 100% 21% 27% - - - - - - 100% 0% 1% 62%
Vegetation/Animal - - - - - - 21% 36% - - - - - - - - - - - - - - - -
Weather/Fire/Earthquake - - - - - - 29% 29% - 100% 100% - - - - - - - 94% 97% - 64% 39% -
PSPS - - - - - - - - - - - - - - - - - - - - - - - -
2019
Reliability Histories for Individual Circuits Serving Blythe - 2 of 4
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
LETTUCE(12KV) - Customers: 388 457.4 4.1 6.0 27.6 0.1 2.0 2.5 0.0 1.0 61.2 1.1 0.9 - - - 1.0 0.0 - 40.2 1.0 2.0 102.4 2.1 2.9
3rd Party 0% 0% - - - - - - - 76% 91% - - - - - - - - - - 45% 47% -
Equipment Failure 38% 49% - 89% 31% - 100% 100% - - - - - - - 100% 100% - 100% 100% 100% 40% 49% 69%
Operation 8% 2% - 11% 69% - - - - - - - - - - - - - - - - - - -
Other 2% 24% 33% - - - - - 100% 2% 1% - - - - - - - - - - 1% 0% -
Vegetation/Animal - - - - - 100% - - - - - - - - - - - - - - - - - -
Weather/Fire/Earthquake 53% 24% 67% - - - - - - 22% 8% 100% - - - - - - - - - 13% 4% 31%
PSPS - - - - - - - - - - - - - - - - - - - - - - - -
MC COY(33KV) - Customers: 2 - - 1.0 1553.8 8.0 13.0 - - 2.0 1542.0 2.0 1.0 - - 1.0 - - - - - - 1542.0 2.0 2.0
3rd Party - - 100% - - - - - - - - - - - 100% - - - - - - - - 50%
Equipment Failure - - - 71% 25% 8% - - - - - - - - - - - - - - - - - -
Operation - - - 22% 13% 15% - - - 62% 50% - - - - - - - - - - 62% 50% -
Other - - - 7% 63% 77% - - 50% - - - - - - - - - - - - - - -
Vegetation/Animal - - - - - - - - - - - - - - - - - - - - - - - -
Weather/Fire/Earthquake - - - - - - - - 50% 38% 50% 100% - - - - - - - - - 38% 50% 50%
PSPS - - - - - - - - - - - - - - - - - - - - - - - -
MELON(12KV) - Customers: 1,444 64.6 1.1 3.0 26.3 1.0 - 157.9 0.9 3.4 0.2 0.0 1.0 2.1 0.0 - 12.3 0.0 - 134.5 1.0 - 149.1 1.1 1.0
3rd Party 2% 3% - - - - 35% 68% 12% - - - - - - - - - - - - - - -
Equipment Failure 67% 4% - 8% 0% - 63% 31% 58% 100% 100% - - - - - - - 100% 100% - 90% 95% -
Operation 19% 7% - - - - 2% 1% 30% - - - 100% 100% - 100% 100% - 0% 0% - 10% 5% -
Other 12% 86% 67% 87% 99% - - - - - - 100% - - - - - - - - - - - 100%
Vegetation/Animal - - - 5% 1% - - - - - - - - - - - - - - - - - - -
Weather/Fire/Earthquake - - 33% - - - 0% 0% - - - - - - - - - - - - - - - -
PSPS - - - - - - - - - - - - - - - - - - - - - - - -
ONION(12KV) - Customers: 1,481 212.1 2.3 2.9 17.9 0.2 2.0 74.2 1.1 - - - - 0.2 0.0 - 5.9 0.1 - 50.5 1.0 - 56.6 1.1 -
3rd Party - - - - - 50% - - - - - - - - - - - - - - - - - -
Equipment Failure 38% 4% - - - - 99% 100% - - - - 100% 100% - 100% 100% - 97% 99% - 98% 99% -
Operation 58% 53% - - - - - - - - - - - - - - - - 3% 1% - 2% 1% -
Other 4% 43% 66% - - - - - - - - - - - - - - - - - - - - -
Vegetation/Animal - - - 66% 98% 50% 1% 0% - - - - - - - - - - - - - - - -
Weather/Fire/Earthquake - - 34% 34% 2% - - - - - - - - - - - - - - - - - - -
PSPS - - - - - - - - - - - - - - - - - - - - - - - -
Reliability Histories for Individual Circuits Serving Blythe - 3 of 4
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
RIVER BEND(12KV) - Customers: 561 34.0 2.0 9.0 528.8 2.9 4.0 217.2 2.3 1.2 - - 1.0 4.2 0.0 - - - - 73.3 1.0 - 77.5 1.0 1.0
3rd Party - - - - - - 74% 47% - - - - - - - - - - - - - - - -
Equipment Failure 11% 0% - 23% 34% - 18% 6% - - - - 15% 20% - - - - 100% 100% - 95% 99% -
Operation 62% 51% - 11% 31% - 2% 17% - - - - - - - - - - - - - - - -
Other 23% 49% 78% - - 100% 4% 27% 100% - - - - - - - - - - - - - - -
Vegetation/Animal 3% 0% 11% - - - 2% 3% - - - 100% - - - - - - - - - - - 100%
Weather/Fire/Earthquake - - 11% 67% 35% - - - - - - - 85% 80% - - - - - - - 5% 1% -
PSPS - - - - - - - - - - - - - - - - - - - - - - - -
WEDGE(12KV) - Customers: 436 470.3 5.9 4.9 1257.9 4.4 1.6 6.0 0.0 4.7 - - - - - - 14.2 0.0 0.9 795.3 2.9 1.0 809.5 3.0 2.0
3rd Party - - - 7% 25% - - - 20% - - - - - - - - - - - - - - -
Equipment Failure 9% 16% 38% 59% 23% - 100% 100% 60% - - - - - - 72% 50% - 20% 35% 100% 21% 35% 52%
Operation 33% 36% - 14% 30% - - - - - - - - - - 28% 50% - 59% 31% - 59% 31% -
Other - - 41% 19% 21% 100% - - 20% - - - - - - - - - - - - - - -
Vegetation/Animal - - - - - - - - - - - - - - - - - - - - - - - -
Weather/Fire/Earthquake 57% 48% 20% - - - - - - - - - - - - - - 100% 20% 35% - 20% 34% 48%
PSPS - - - - - - - - - - - - - - - - - - - - - - - -
WINTERS(12KV) - Customers: 17 81.3 0.5 0.5 - - - 460.7 2.4 - 1692.6 1.6 0.9 3.0 0.1 - 185.6 0.1 1.0 7.7 0.1 - 1888.9 1.7 1.9
3rd Party 100% 100% - - - - - - - - - - - - - - - - - - - - - -
Equipment Failure - - - - - - 35% 20% - - - - 100% 100% - - - 100% - - - 0% 3% 54%
Operation - - - - - - 51% 36% - - - - - - - - - - - - - - - -
Other - - 100% - - - - - - - - 100% - - - 100% 100% - 100% 100% - 10% 6% 46%
Vegetation/Animal - - - - - - 12% 42% - - - - - - - - - - - - - - - -
Weather/Fire/Earthquake - - - - - - 2% 2% - 100% 100% - - - - - - - - - - 90% 91% -
PSPS - - - - - - - - - - - - - - - - - - - - - - - -
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Reliability Histories for Individual Circuits Serving Blythe - 4 of 4
2016 2017 2018 1st Qtr 2019 2nd Qtr 2019 3rd Qtr 2019 4th Qtr 2019 2019
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