Circuit Reliability Review

Transcription

1 Circuit Reliability Review Redondo Beach January 2018

2 Building a Smarter Grid for Southern California Southern California Edison is developing an electric grid to support California s transition to a clean and sustainable future that meets the needs and expectations of our customers. We are investing more than $13 billion in the power distribution grid over three years ( ). Our main investment goal is to increase power reliability through significant upgrades. The investments include: Upgrading cables, poles, switches and transformers Updating the grid so it can accommodate new technologies, such as smart inverters that will allow for the twoway flow of solar energy Adapting the power system to accommodate future California policy related to energy storage, electric transportation and renewable energy Providing enhanced automation and monitoring devices to allow us to better respond to changes on the grid Our investments in local communities will help ensure that customers receive safe, reliable, and affordable electricity now and in the future. Learn more at edison.com/innovation 2

3 Understanding Your Reliability Report As your electric utility, we want you to always have power when you need it. To get there, we constantly track and monitor electric outages across our service territory, and we measure our system reliability from this data. The two metrics we rely on are common in the electric utility industry: the System Average Interruption Duration Index (SAIDI) and the System Average Interruption Frequency Index (SAIFI). Both are described in more detail on the next page. Replacing and upgrading our infrastructure will help SCE maintain or improve SAIDI and SAIFI measurements. This report provides historical reliability data for the circuits that serve your jurisdiction and our proposed infrastructure upgrades for the current year. To view other reliability reports, visit sce.com>outage Center>Maintaining Reliable Service 3

4 Reliability Metrics MOMENTARY OUTAGES: OUTAGES LASTING 5 MINUTES OR LESS SUSTAINED OUTAGES: OUTAGES LASTING LONGER THAN 5 MINUTES MAIFI: o The number of times the average customer is interrupted by Momentary outages each year. SAIFI: o The number of times the average customer is interrupted by Sustained outages each year. SAIDI: o The cumulative amount of time the average customer is interrupted by Sustained outages each year. 4

5 Cities in the SOUTH BAY District CityList1 ALONDRA PARK DEL AIRE EL SEGUNDO GARDENA HAWTHORNE HERMOSA BEACH INGLEWOOD LADERA HEIGHTS LAWNDALE LENNOX LOMITA LOS ANGELES MANHATTAN BEACH PALOS VERDES ESTATES RANCHO PALOS VERDES REDONDO BEACH ROLLING HILLS ROLLING HILLS ESTATES TORRANCE VIEW PARK-WINDSOR HILLS WEST ATHENS WESTMONT 5

6 * 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. 6

7 Overview of Redondo Beach CircuitList1 There are 49 circuits that serve Redondo Beach 1 Circuit Type Customers Circuit Type Customers Circuit Type Customers Circuit Type Customers ADDIS(16KV) 3,131 NELSON(16KV) 3, ALBACORE(16KV) 1,764 OPAL(4.16KV) ANGELINA(16KV) 1,392 PANSY(4.16KV) ARVANA(16KV) 3,367 PENGUIN(16KV) AZALIA(4.16KV) 771 PISTON(16KV) 4, AZURE(4.16KV) 965 PRUITT(4.16KV) BERYL(4.16KV) 830 PUEBLO(16KV) 1, BLOODSTONE(4.16KV) 814 PULLMAN(4.16KV) 1, BLOSSOM(16KV) 1,702 SAGO(16KV) 3, BLUEGILL(16KV) 3,208 SALMON(16KV) 3, BORDEN(4.16KV) 1,002 SELVA(16KV) 1, CAMINO REAL(4.16KV) 771 SPINEL(4.16KV) CARNELIAN(16KV) 4,909 STRAWBERRY(4.16KV) CATALINA(4.16KV) 931 TALENT(4.16KV) CHICO(16KV) 2,989 TENOR(4.16KV) 1, CLEO(4.16KV) 1,073 TOURMALINE(4.16KV) CLIFTON(4.16KV) 982 TRANSPLANT(4.16KV) 1, COMO(4.16KV) 1,027 VALVE(16KV) 3, CORAL(4.16KV) 289 VILLA(4.16KV) 1, CYLINDER(16KV) 1, EL PASEO(4.16KV) FLYWHEEL(16KV) 1, FREEMAN(4.16KV) 1, GEM(4.16KV) HARKNESS(4.16KV) HERMOSA(4.16KV) 1, HILLSIDE(16KV) JANICE(4.16KV) 1, KING(16KV) 3, MORGAN(4.16KV) Grand Total 77,832 7

8 Reliability History of Circuits Serving Redondo Beach (No Exclusions) BarChart SAIDI (average minutes of sustained interruptions) Redondo Beach SAIFI (average frequency of sustained interruptions) SCE SYSTEMWIDE MAIFI (average frequency of momentary interruptions) ** Exclusions are days which utilities are allowed to remove from their metrics because the outages on those days were caused by acts of nature. **Data is as of 02/20/2018, data can be slightly different due to outage data validation process 8

9 Causes of Repair Outages in Redondo Beach 2017 SAIDIChart Contributions to SAIDI by Outage Cause Vegetation /Animal 1.8% Equipment Failure e.g., in-service failure of transformer, switch, or conductors Vegetation/Animal e.g., tree branch, rodent, or bird causing a short circuit between conductors Other e.g., patrolled but no cause found Operations e.g., urgent maintenance w/o 3-day notice 3 rd Party e.g., balloon, car hit pole, dig-in Other 12.2% Operation 5.9% Weather /Fire /Earthquake 14.3% 3rd Party 15.1% Equipment Failure 50.6% 3rd Party Equipment Failure Operation Other Vegetation /Animal Weather /Fire /Earthquake SAIDI = the cumulative amount of time the average customer is interrupted by sustained outages each year. 9

10 Causes of Repair Outages in Redondo Beach 2017 SAIFIChart Contributions to SAIFI by Outage Cause Vegetation /Animal 4.8% Equipment Failure e.g., in-service failure of transformer, switch, or conductors Vegetation/Animal e.g., tree branch, rodent, or bird causing a short circuit between conductors Other e.g., patrolled but no cause found Operations e.g., urgent maintenance w/o 3-day notice 3 rd Party e.g., balloon, car hit pole, dig-in Other 7.0% Operation 13.6% Weather /Fire /Earthquake 16.1% 3rd Party 9.0% Equipment Failure 49.6% 3rd Party Equipment Failure Operation Other Vegetation /Animal Weather /Fire /Earthquake SAIFI = the number of times the average customer is interrupted by sustained outages each year 10

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13 Back-up Slides Reliability Histories of Circuits Serving Redondo Beach Updated through Dec 2017

14 Average Reliability of 49 Circuits Serving Redondo Beach CitySummary st Qtr nd Qtr rd Qtr th Qtr SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI 49 Circuits Serving Redondo Beach -- Total Customers: 77, rd Party 5% 3% 6% 15% 20% 33% 10% 6% 16% 22% 14% 27% 31% 22% 43% % % 15% 9% 31% Equipment Failure 43% 33% 29% 45% 41% 16% 40% 28% 25% 26% 27% 39% 63% 69% 29% 94% 94% 45% 43% 36% 52% 51% 50% 40% Operation 6% 2% 4% 8% 15% 0% 22% 44% 10% 12% 36% 6% 1% 1% - 4% 4% 0% 6% 4% - 6% 14% 3% Other 20% 30% 32% 22% 10% 34% 12% 4% 24% 34% 15% 20% 6% 8% 27% 1% 2% 9% 1% 1% - 12% 7% 17% Vegetation/Animal 6% 12% 4% 2% 2% 13% 3% 8% 8% % 16% 14% 2% 5% 2% Weather/Fire/Earthquake 21% 20% 24% 9% 12% 4% 14% 10% 18% 5% 8% 8% % 44% 18% 14% 16% 7% SCE SYSTEMWIDE Notes: No outages are excluded from the metrics. Outage Causes: Other: e.g., patrolled but no cause could be found Operations: e.g., urgent maintenance w/o 3-day notice to customers 3 rd Party: e.g., balloons, car hit pole, dig-in Vegetation/Animal: e.g., tree branch, rodent, or bird causing short circuit across conductors SAIDI (minutes) = the cumulative amount of time the average customer is interrupted by sustained (longer than 5 minutes) outages. SAIFI (interruptions) = the number of times the average customer is interrupted by sustained outages. MAIFI (interruptions) = the number of times the average customer is interrupted by momentary " (lasting 5 minutes or less) outages. 14

15 Reliability Histories for Individual Circuits Serving Redondo Beach - 1 of st Qtr nd Qtr rd Qtr th Qtr SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI ADDIS(16KV) - Customers: 3, CircuitHistory rd Party % Equipment Failure % 99% - 2% 0% % 100% 100% 100% 100% % 100% 100% Operation 100% 100% - 0% 1% - 24% 50% Other % 74% 50% ALBACORE(16KV) - Customers: 1, rd Party % Equipment Failure 38% 16% 18% 54% 39% - 88% 62% 30% Operation 3% 1% - 44% 58% 18% 1% 0% Other 51% 61% - 0% 0% % 100% % 100% - Vegetation/Animal 8% 21% 82% 2% 2% - 12% 38% 70% % % ANGELINA(16KV) - Customers: 1, rd Party % 99% 51% Equipment Failure % 1% - 17% 2% Operation % 98% 100% 100% 100% % 100% - Other 100% 100% % ARVANA(16KV) - Customers: 3, rd Party % 40% - 61% 45% 100% 100% 100% 100% % 48% 15% Equipment Failure 99% 100% 100% 1% 1% % 98% % 100% 100% 81% 52% 85% Operation 1% 0% - 2% 20% - 17% 50% % 2% % 0% - 0% 0% - Other % 17% 100% 22% 5% Weather/Fire/Earthquake % 22%

16 Reliability Histories for Individual Circuits Serving Redondo Beach - 2 of 13 CircuitHistory st Qtr nd Qtr rd Qtr th Qtr SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI AZALIA(4.16KV) - Customers: rd Party 95% 99% Equipment Failure 5% 1% - 100% 100% % 52% 33% 100% 100% 100% % 55% 49% Operation % 100% - 5% 48% 67% % 45% 51% Other AZURE(4.16KV) - Customers: rd Party % 45% Equipment Failure 47% 53% - 28% 10% - 10% 3% 100% % 97% - 47% 55% - Operation % 2% - 100% 100% - 100% 100% % 3% - 53% 45% - Other 53% 47% 100% % 95% Weather/Fire/Earthquake % 46% BERYL(4.16KV) - Customers: rd Party % 50% 37% Equipment Failure % 25% 41% 34% 5% Operation 100% 100% - 0% 0% - 66% 95% % 100% % 100% - Other % Weather/Fire/Earthquake % 24% BLOODSTONE(4.16KV) - Customers: rd Party % Equipment Failure % 95% 33% 87% 71% - 100% 100% % % 100% 100% Operation % 5% - 13% 29% Other Weather/Fire/Earthquake %

17 Reliability Histories for Individual Circuits Serving Redondo Beach - 3 of 13 CircuitHistory st Qtr nd Qtr rd Qtr th Qtr SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI BLOSSOM(16KV) - Customers: 1, rd Party % Equipment Failure 9% 29% - 2% 2% % 100% % 3% - Operation 91% 71% 100% % 100% Other % Weather/Fire/Earthquake % 98% % 100% 100% % 97% 100% BLUEGILL(16KV) - Customers: 3, rd Party Equipment Failure 5% 0% - 11% 26% 12% 41% 35% 19% 1% 1% % 100% % 12% - Operation % 24% 0% 3% 3% 34% 1% 30% % 25% - Other 48% 64% 72% 39% 31% 24% % 69% 100% % 100% - 91% 63% 100% Vegetation/Animal 47% 35% 28% 36% 20% 30% 15% 55% 40% Weather/Fire/Earthquake % 40% 8% 7% BORDEN(4.16KV) - Customers: 1, rd Party % % 49% 20% Equipment Failure 100% 100% - 13% 2% - 6% 1% % 100% - 100% 100% - Operation % 98% - 37% 50% Other % CAMINO REAL(4.16KV) - Customers: rd Party % Equipment Failure % 100% - 4% 1% Operation % 99% Other %

18 Reliability Histories for Individual Circuits Serving Redondo Beach - 4 of 13 CircuitHistory st Qtr nd Qtr rd Qtr th Qtr SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI CARNELIAN(16KV) - Customers: 4, rd Party % 0% 50% % 100% 100% % 17% 82% Equipment Failure 100% 100% 50% 99% 99% - 64% 52% 52% % 88% 100% 40% 30% - 18% 71% 18% Operation 0% 0% - 0% 1% - 30% 45% % 12% - 60% 70% - 7% 12% - Other % 7% 2% 48% Weather/Fire/Earthquake % CATALINA(4.16KV) - Customers: rd Party % 44% 8% 100% Equipment Failure 100% 100% - 100% 100% - 13% 3% % 100% - 100% 100% - 25% 8% - Operation % % 89% % 100% % 1% - Other % Weather/Fire/Earthquake % 100% % 91% - CHICO(16KV) - Customers: 2, rd Party % 1% 50% Equipment Failure 8% 16% - 34% 12% 59% 49% 26% % 92% - 100% 100% % 28% - Operation 24% 12% - 22% 21% - 44% 66% 50% % 8% % 100% - 40% 72% - Other 68% 72% 100% 0% 0% 41% 7% 7% Weather/Fire/Earthquake % 67% CLEO(4.16KV) - Customers: 1, rd Party Equipment Failure % 9% 100% % 80% % 80% - Operation % 63% 91% - 58% 51% % 20% % 20% - Other Weather/Fire/Earthquake 100% 100% 75% % 49% 100%

19 Reliability Histories for Individual Circuits Serving Redondo Beach - 5 of 13 CircuitHistory st Qtr nd Qtr rd Qtr th Qtr SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI CLIFTON(4.16KV) - Customers: rd Party % % 3% 100% % % 3% 100% Equipment Failure % 52% % 97% - 100% 100% % 91% - Operation % 45% - 100% 100% % 100% - 6% 7% - Other % 3% 50% COMO(4.16KV) - Customers: 1, rd Party % % % Equipment Failure 36% 69% - 41% 11% Operation % 89% - 100% 100% - 100% 100% % 100% - Other % % Vegetation/Animal % Weather/Fire/Earthquake 64% 31% 39% CORAL(4.16KV) - Customers: rd Party Equipment Failure % 100% 100% % % Operation % 100% Other % CYLINDER(16KV) - Customers: 1, rd Party % 33% - 39% 33% Equipment Failure 9% 1% - 61% 34% - 22% 32% 97% 98% 99% 100% % 98% 100% Operation % 34% - 8% 32% - 2% 1% % 100% % 2% - Other % 3% 3% Weather/Fire/Earthquake 91% 99% 100%

20 Reliability Histories for Individual Circuits Serving Redondo Beach - 6 of 13 CircuitHistory st Qtr nd Qtr rd Qtr th Qtr SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI EL PASEO(4.16KV) - Customers: rd Party % % % % Equipment Failure 10% 2% - 100% 100% - 13% 2% % 100% % 100% - Operation % 98% Other 90% 98% 50% % FLYWHEEL(16KV) - Customers: 1, rd Party % % Equipment Failure % 16% Operation % 84% - 100% 100% - 100% 100% % 100% - Other FREEMAN(4.16KV) - Customers: 1, rd Party % % Equipment Failure % 50% % 2% % 2% - Operation % 100% Other % 98% % 98% - Vegetation/Animal % 24% 50% Weather/Fire/Earthquake % 26% GEM(4.16KV) - Customers: rd Party Equipment Failure % % 100% % 100% - Operation 100% 100% Other % 100% 50% % % 20

21 Reliability Histories for Individual Circuits Serving Redondo Beach - 7 of 13 CircuitHistory st Qtr nd Qtr rd Qtr th Qtr SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI HARKNESS(4.16KV) - Customers: rd Party Equipment Failure % 20% - 28% 9% % 100% % 100% - Operation % 80% - 72% 91% Other Weather/Fire/Earthquake 100% 100% 100% HERMOSA(4.16KV) - Customers: 1, rd Party % % 11% 40% 100% % % Equipment Failure 100% 100% - 100% 100% - 47% 18% % 100% 100% % 99% 22% Operation % 41% % 100% % 1% - Other % % % % HILLSIDE(16KV) - Customers: rd Party % 36% 15% 100% Equipment Failure % 100% 34% Operation % 85% % 100% % 100% - Other % JANICE(4.16KV) - Customers: 1, rd Party % % Equipment Failure 13% 1% 50% % 100% - 100% 100% - Operation 4% 1% % 100% Other Weather/Fire/Earthquake 83% 99% 50% 100% 100% 100% % % 21

22 Reliability Histories for Individual Circuits Serving Redondo Beach - 8 of 13 CircuitHistory st Qtr nd Qtr rd Qtr th Qtr SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI KING(16KV) - Customers: 3, rd Party % 15% 25% Equipment Failure 1% 0% - 4% 2% - 45% 45% 100% 100% 100% 100% 100% 100% - 100% 100% % 97% 100% Operation % 1% - 14% 28% % 100% - 6% 3% - Other % 81% 75% Weather/Fire/Earthquake 99% 100% % 27% MORGAN(4.16KV) - Customers: rd Party % % % % Equipment Failure % 100% 100% 55% 38% - 6% 0% % 0% - Operation % 62% - 11% 50% % 44% - Other 61% 4% 67% % 100% % 11% - Weather/Fire/Earthquake 39% 96% % 50% 100% % 44% 47% NELSON(16KV) - Customers: 3, rd Party % 14% 44% Equipment Failure 74% 58% 26% 0% 0% - 27% 14% % 100% % 60% - Operation 1% 0% - 6% 6% - 26% 67% % 100% - 9% 40% - Other 2% 5% % Weather/Fire/Earthquake 24% 36% 74% 76% 80% 15% 47% 20% 100% OPAL(4.16KV) - Customers: rd Party % % % Equipment Failure % 100% - 17% 1% - 100% 100% % 100% - Operation % 99% Other % %

23 Reliability Histories for Individual Circuits Serving Redondo Beach - 9 of 13 CircuitHistory st Qtr nd Qtr rd Qtr th Qtr SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI PANSY(4.16KV) - Customers: rd Party Equipment Failure % 100% Operation % 100% 100% % 100% - 100% 100% 100% Other PENGUIN(16KV) - Customers: rd Party Equipment Failure % 100% % 100% % 100% - 100% 100% - Operation % 7% 2% % % Other 70% 75% Vegetation/Animal 30% 25% 100% % 93% 98% 100% Weather/Fire/Earthquake - - 0% PISTON(16KV) - Customers: 4, rd Party % 1% - 13% 7% Equipment Failure 100% 99% 22% 96% 94% 100% 5% 0% % % 32% % 6% 0% 65% Operation % 4% - 82% 93% - 81% 94% % 68% - 7% 0% - 60% 58% - Other % 1% 1% % 6% 42% % 4% 35% Weather/Fire/Earthquake 0% 1% % 100% - 20% 38% - PRUITT(4.16KV) - Customers: rd Party % 100% 51% Equipment Failure Operation % 100% 100% Other %

24 Reliability Histories for Individual Circuits Serving Redondo Beach - 10 of st Qtr nd Qtr rd Qtr 2017 CircuitHistory10 4th Qtr SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI PUEBLO(16KV) - Customers: 1, rd Party Equipment Failure 96% 97% - 3% 3% % 100% % 29% - Operation 4% 3% % 28% % 100% % 71% - Other % 97% % Vegetation/Animal % Weather/Fire/Earthquake % 72% PULLMAN(4.16KV) - Customers: 1, rd Party % 87% - 20% 6% 100% Equipment Failure 7% 34% - 3% 3% - 59% 18% Operation 93% 66% % 76% % 100% - 100% 100% - Other Weather/Fire/Earthquake % 10% SAGO(16KV) - Customers: 3, rd Party % 56% 24% Equipment Failure 15% 12% 51% 45% 42% 26% 98% 100% 100% 100% 100% - 100% 99% - 97% 100% 100% 2% 10% - 78% 66% 100% Operation 1% 1% - 4% 2% - 2% 0% % 1% - 3% 0% - 6% 1% - 2% 1% - Other % Vegetation/Animal 67% 58% % Weather/Fire/Earthquake 17% 29% % 90% - 20% 33% - SALMON(16KV) - Customers: 3, rd Party % 0% - 1% 1% % 92% 72% 11% % 30% 41% Equipment Failure 27% 1% - 79% 91% - 26% 2% % 28% - 98% 90% - 0% 0% - 11% 14% - Operation 2% 1% - 2% 2% - 1% 1% % 10% - 0% 1% - 0% 1% - Other 54% 73% - 13% 7% % % Vegetation/Animal 17% 24% % 44% % 55% 21% 8% 31% 5% Weather/Fire/Earthquake % 52% % 44% 79% 44% 25% 17% 24

25 Reliability Histories for Individual Circuits Serving Redondo Beach - 11 of st Qtr nd Qtr rd Qtr th Qtr SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI CircuitHistory11 SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SELVA(16KV) - Customers: 1, rd Party % 9% 50% Equipment Failure 51% 42% 100% 81% 65% - 72% 43% 54% 84% 67% % 50% - 87% 53% - Operation 49% 58% - 3% 26% - 28% 57% - 16% 33% - 100% 100% % 50% - 13% 47% - Other % % SPINEL(4.16KV) - Customers: rd Party Equipment Failure % 73% 81% 10% 100% 100% % 100% 100% % 100% 100% Operation % 100% Other % 19% 42% Weather/Fire/Earthquake % STRAWBERRY(4.16KV) - Customers: rd Party Equipment Failure 100% 100% % 100% - 100% 100% % 100% - Operation % 100% Other % Vegetation/Animal % TALENT(4.16KV) - Customers: rd Party Equipment Failure 100% 100% - 100% 100% - 100% 100% % 100% - 100% 100% - Operation Other % Vegetation/Animal %

26 Reliability Histories for Individual Circuits Serving Redondo Beach - 12 of st Qtr nd Qtr rd Qtr th Qtr SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI CircuitHistory12 SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI TENOR(4.16KV) - Customers: 1, rd Party % % Equipment Failure 100% 100% - 100% 100% - 100% 100% % 46% - 32% 15% - Operation % 100% % 54% - 68% 85% - Other % Vegetation/Animal % TOURMALINE(4.16KV) - Customers: rd Party % Equipment Failure % 100% 100% % 100% - 100% 100% % 31% - Operation % 100% Other % % % Weather/Fire/Earthquake 100% 100% % 100% 100% % 69% 50% TRANSPLANT(4.16KV) - Customers: 1, rd Party 94% 96% % % % Equipment Failure 5% 3% 100% 97% 90% - 55% 27% % 100% - 100% 100% - Operation 0% 1% - 3% 10% - 45% 73% Other Weather/Fire/Earthquake % VALVE(16KV) - Customers: 3, rd Party % 2% % % Equipment Failure 18% 59% 41% 13% 1% 100% % 100% - 38% 9% - 73% 48% - Operation % 49% - 73% 82% - 100% 100% - 100% 100% % 26% - 12% 26% - Other % % 65% - 14% 26% - Vegetation/Animal % 18% Weather/Fire/Earthquake 82% 41% - 63% 48% %

27 Reliability Histories for Individual Circuits Serving Redondo Beach - 13 of st Qtr nd Qtr rd Qtr th Qtr SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI CircuitHistory13 SAIFI MAIFI SAIDI SAIFI MAIFI VILLA(4.16KV) - Customers: 1, rd Party % % Equipment Failure 100% 100% - 100% 100% - 100% 100% % 100% - 100% 100% % 3% - Operation Other % % 100% 100% % 97% - Vegetation/Animal %