Circuit Reliability Review

Transcription

1 Circuit Reliability Review Orange District 3 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 /Areas in Orange District 3 CityList1 CITY OF ORANGE IRVINE TUSTIN VILLA PARK YORBA LINDA 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 Orange District 3 CircuitList1 There are 56 circuits that serve Orange District 3 1 Circuit Type Customers Circuit Type Customers Circuit Type Customers Circuit Type Customers ARABIA(12KV) 2,309 IRVINE PARK(2.4KV) ARSENIC(12KV) 555 ISRAEL(12KV) 2, ATENTO(12KV) 2,217 KOREA(12KV) 1, ATLANTA(12KV) 904 LISA ANNE(12KV) 1, AVALANCHE(12KV) 1,915 MELISSA(12KV) 1, BAHAMA(12KV) 1,227 MONSOON(12KV) 1, BARBADOS(12KV) 2,480 MUIRLANDS(12KV) 2, BEIJING(12KV) 1,680 MYFORD(12KV) 2, BERMUDA(12KV) 1,153 NEPAL(12KV) 1, BERTEA(12KV) 655 ONBORD(12KV) 1, BLIZZARD(12KV) 1,854 PERSIA(12KV) 2, BORNEO(12KV) 1,559 QATAR(12KV) 1, BRAZIL(12KV) 1,393 RACINE(12KV) 1, CATHY(12KV) 2,497 REDHILL(12KV) CAYMEN(12KV) 3,255 RUSTIC(12KV) 3, CHINA(12KV) 2,596 SIAM(12KV) 2, CHRISTINE(12KV) 1,881 SKYPARK(12KV) COCAMO(12KV) 946 SLATE(12KV) COOLER(12KV) 1,575 SOLITAIRE(12KV) CYCLONE(12KV) 1,547 SRI LANKA(12KV) 1, DIXIE(12KV) 2,236 ST. THOMAS(12KV) 1, DREYER(12KV) 1,382 SUDAN(12KV) 1, EL TORO(12KV) 2,740 TAIWAN(12KV) 1, ELPAC(12KV) 32 TORNADO(12KV) 1, GREEN RIVER(12KV) 2,006 TYPHOON(12KV) 1, HALLSWORTH(12KV) 1,673 VORTEX(12KV) HANDY(12KV) 1, HINES(12KV) 1, HURRICANE(12KV) 2, IRAN(12KV) 1, Grand Total 87,600 7

8 Reliability History of Circuits Serving Orange District 3 (No Exclusions) BarChart SAIDI (average minutes of sustained interruptions) Orange District SAIFI (average frequency of sustained interruptions) SCE SYSTEMWIDE ** Exclusions are days which utilities are allowed to MAIFI (average frequency of momentary interruptions) 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 0.0 8

9 Causes of Repair Outages in Orange District SAIDIChart Vegetation /Animal 4.3% Weather /Fire /Earthquake 3.4% Contributions to SAIDI by Outage Cause 3rd Party 4.0% 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 Operation 22.7% Other 4.1% Equipment Failure 61.5% 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 Orange District SAIFIChart Other 2.9% Vegetation /Animal 5.9% Weather /Fire /Earthquake 3.6% 3rd Party 5.0% Contributions to SAIFI by Outage Cause 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 Operation 24.2% Equipment Failure 58.2% 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 Orange District 3 Updated through Dec 2017

14 Average Reliability of 56 Circuits Serving Orange District 3 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 56 Circuits Serving Orange District 3 -- Total Customers: 87, rd Party 9% 14% 16% 3% 6% 50% 12% 9% 32% 2% 1% 21% 2% 1% 18% 4% 5% 10% 9% 13% 8% 4% 5% 15% Equipment Failure 41% 35% 19% 60% 54% 6% 55% 50% 27% 60% 66% 29% 70% 66% 19% 75% 71% - 42% 31% 48% 62% 58% 21% Operation 33% 18% 7% 26% 22% 8% 11% 15% 4% 16% 11% 8% 25% 30% - 17% 14% 1% 38% 44% 11% 23% 24% 4% Other 10% 19% 21% 1% 4% 19% 10% 14% 7% 3% 0% 23% 1% 1% 2% 1% 1% 8% 11% 10% - 4% 3% 9% Vegetation/Animal 4% 8% 27% 9% 12% 16% 1% 1% 16% 10% 17% 17% 2% 2% 44% 2% 2% 21% 0% 0% 22% 4% 6% 27% Weather/Fire/Earthquake 3% 6% 10% 2% 2% 2% 10% 11% 14% 8% 4% 3% 1% 0% 17% 1% 8% 60% 1% 3% 11% 3% 4% 22% 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 Orange District 3-1 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 ARABIA(12KV) - Customers: 2, CircuitHistory rd Party % % 100% % 12% - Equipment Failure 43% 8% - 65% 21% - 86% 95% - 85% 93% % 14% - 100% 100% - 66% 57% - Operation 57% 92% - 35% 79% - 13% 4% Other % 86% % 30% - Weather/Fire/Earthquake % 1% 100% 15% 7% % 1% - ARSENIC(12KV) - Customers: Equipment Failure % 100% 100% 11% 7% - 100% 100% 100% % 100% 0% Operation % % 93% Weather/Fire/Earthquake % % ATENTO(12KV) - Customers: 2, rd Party % 64% 72% % 1% % 1% - Equipment Failure 60% 75% % 1% % 1% - Operation 40% 25% - 7% 16% - 0% 1% - 100% 100% % 98% 5% % 97% 5% Other % 1% 27% 46% 34% % % Vegetation/Animal % 90% 83% 73% Weather/Fire/Earthquake % 0% 28% % 100% % % 1% 70% ATLANTA(12KV) - Customers: Equipment Failure % 100% % 100% - Operation % 100% Other % % 100% - 1% 0% 75% Vegetation/Animal % % Weather/Fire/Earthquake % 100% % 0% - 15

16 Reliability Histories for Individual Circuits Serving Orange District 3-2 of 14 CircuitHistory st Qtr nd Qtr rd Qtr th Qtr 2017 SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI 2017 AVALANCHE(12KV) - Customers: 1, rd Party % Equipment Failure Operation % 100% % 100% - 100% 100% 100% % 100% 100% Vegetation/Animal % BAHAMA(12KV) - Customers: 1, rd Party 55% 50% 33% % % Equipment Failure 43% 49% % 51% Operation % 4% - 15% 14% Other % 14% 96% 100% 27% 35% Vegetation/Animal % % 100% % 100% - Weather/Fire/Earthquake 2% 1% BARBADOS(12KV) - Customers: 2, Equipment Failure % 100% Operation % 100% % 100% % 100% - Other 100% 100% % Vegetation/Animal % % BEIJING(12KV) - Customers: 1, Equipment Failure % 1% 100% % 100% % 51% - Operation 100% 100% - 94% 99% % 100% % 100% - 100% 100% - 54% 49% - Other % % % % Vegetation/Animal % % Weather/Fire/Earthquake % 100% 97%

17 Reliability Histories for Individual Circuits Serving Orange District 3-3 of 14 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 BERMUDA(12KV) - Customers: 1, Equipment Failure % 97% - 4% 2% 46% Operation % 3% - 96% 98% 54% Other 100% 100% % Vegetation/Animal % % BERTEA(12KV) - Customers: Equipment Failure 100% 100% 100% % 100% Operation Vegetation/Animal % BLIZZARD(12KV) - Customers: 1, rd Party % Equipment Failure 86% 71% % 100% - 58% 39% - 100% 100% % 39% - Operation 1% 15% - 100% 100% % 61% % 100% % 61% - Other 12% 14% BORNEO(12KV) - Customers: 1, rd Party % Equipment Failure 94% 98% 100% 19% 27% - 90% 90% 73% % 100% % 91% - Operation 1% 1% - 81% 70% 31% % 100% - 21% 7% - Other 5% 1% % 3% 27% 100% 100% % 1% - Vegetation/Animal % 3% - 5% 7% Weather/Fire/Earthquake % 100% % 1% - 17

18 Reliability Histories for Individual Circuits Serving Orange District 3-4 of 14 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 BRAZIL(12KV) - Customers: 1, rd Party % 58% 78% Equipment Failure 38% 50% 100% 3% 0% Operation % 0% % 100% % 100% - Other 62% 50% - 14% 42% 22% Vegetation/Animal % % CATHY(12KV) - Customers: 2, rd Party % % Equipment Failure 88% 50% 100% 28% 19% Operation 12% 50% - 72% 81% - 3% 3% - 100% 100% % 100% - Other % 97% CAYMEN(12KV) - Customers: 3, Equipment Failure 100% 100% Operation % % 100% Other % % Vegetation/Animal % CHINA(12KV) - Customers: 2, rd Party 78% 68% 100% % 26% 100% % % Equipment Failure % 62% - 3% 1% % 100% - 100% 100% - 99% 100% - Operation 0% 0% - 4% 38% - 0% 1% Other 22% 32% Weather/Fire/Earthquake % 73% % 0% 100% % 0% 50% 18

19 Reliability Histories for Individual Circuits Serving Orange District 3-5 of 14 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 CHRISTINE(12KV) - Customers: 1, rd Party % 1% 0% 100% Equipment Failure 98% 87% % 2% % 100% 100% 17% 15% 33% Operation 2% 13% - 32% 3% - 0% 0% - 100% 100% % 73% - Other % 98% Vegetation/Animal % 97% 49% Weather/Fire/Earthquake % 100% 100% % 12% 67% COCAMO(12KV) - Customers: Equipment Failure % 100% - 100% 100% 51% % 50% % 31% - Operation % 50% % 31% 31% 100% Other % % Vegetation/Animal % Weather/Fire/Earthquake % 100% - 32% 38% - COOLER(12KV) - Customers: 1, Equipment Failure % 94% - 91% 86% % 100% % 48% - Operation % 6% - 9% 14% - 100% 100% 100% % 26% 67% Weather/Fire/Earthquake % 100% 100% % 26% 33% CYCLONE(12KV) - Customers: 1, rd Party % Equipment Failure 5% 6% % 20% Operation 95% 94% - 100% 100% - 45% 80% % 100% - 100% 100% - Vegetation/Animal %

20 Reliability Histories for Individual Circuits Serving Orange District 3-6 of 14 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 DIXIE(12KV) - Customers: 2, Equipment Failure 100% 100% 100% 56% 13% Operation 0% 0% - 2% 5% % 100% - 100% 100% - 100% 100% % 100% - Vegetation/Animal % 82% DREYER(12KV) - Customers: 1, rd Party 4% 1% % 36% % 4% - Equipment Failure 37% 5% - 62% 32% - 80% 75% % 64% % 7% - Operation 19% 2% 25% 35% 14% - 6% 15% Other % 2% 54% 100% 2% 3% Vegetation/Animal 17% 27% 25% % Weather/Fire/Earthquake 24% 64% 25% % 7% - 100% 100% 100% % 90% 100% EL TORO(12KV) - Customers: 2, rd Party % Equipment Failure 97% 66% % 85% - 100% 100% % 78% % 98% - Operation 3% 34% - 100% 100% - 1% 15% 2% % 22% % 2% - ELPAC(12KV) - Customers: Equipment Failure 100% 100% 100% Operation Vegetation/Animal %

21 Reliability Histories for Individual Circuits Serving Orange District 3-7 of 14 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 GREEN RIVER(12KV) - Customers: 2, rd Party % % % Equipment Failure 88% 49% - 19% 10% - 100% 95% - 100% 100% % 79% % 90% - Operation 12% 51% - 81% 90% 50% 0% 5% % 21% 100% % 10% 1% Vegetation/Animal % % HALLSWORTH(12KV) - Customers: 1, Equipment Failure 92% 61% 100% % 59% Operation 1% 15% % 4% 27% Other % 3% % 100% - 7% 23% % 51% - Vegetation/Animal 7% 24% % 5% 57% % 77% % 49% - Weather/Fire/Earthquake % 29% 16% HANDY(12KV) - Customers: 1, Equipment Failure % 81% 54% - 72% 66% 100% % 8% - 98% 50% % 4% - Operation 7% 61% - 19% 46% - 2% 16% % 90% - 2% 50% - 3% 3% - 24% 40% - Other 24% 14% % 97% - 59% 55% - Vegetation/Animal % 18% % 3% 1% % 1% 100% Weather/Fire/Earthquake 70% 26% 49% % HINES(12KV) - Customers: 1, rd Party % Equipment Failure 17% 19% % 99% 58% Operation 83% 81% - 100% 100% - 2% 1% Other %

22 Reliability Histories for Individual Circuits Serving Orange District 3-8 of 14 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 HURRICANE(12KV) - Customers: 2, rd Party % % 2% 50% % 1% 50% Equipment Failure 33% 11% - 82% 51% 38% % 97% % 45% - Operation 17% 6% - 13% 46% - 93% 72% % 100% - 0% 0% - Vegetation/Animal 50% 83% 100% 5% 3% - 7% 28% - 87% 98% 50% % 3% % 54% 50% IRAN(12KV) - Customers: 1, rd Party 3% 1% 100% Equipment Failure 27% 21% - 14% 1% - 45% 56% 44% % 50% - 100% 100% % 90% - Operation 4% 6% - 86% 99% 100% 0% 0% % 50% % 10% - Other 66% 72% % 43% % % Vegetation/Animal % % % IRVINE PARK(2.4KV) - Customers: rd Party % 50% - 2% 14% - Equipment Failure % 100% 100% 100% 100% % 100% % 71% - Operation Other % 50% - 76% 14% - ISRAEL(12KV) - Customers: 2, rd Party % 12% 37% % 24% - 38% 49% % 37% - Equipment Failure 4% 17% - 42% 8% - 2% 0% % 76% 100% 49% 17% - 100% 100% - 48% 46% 100% Operation 91% 77% - 39% 59% 29% 98% 99% % 34% % 18% - Other % Vegetation/Animal 2% 2% - 11% 22% 33% Weather/Fire/Earthquake 4% 5% 66% % 0% 100%

23 Reliability Histories for Individual Circuits Serving Orange District 3-9 of 14 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 KOREA(12KV) - Customers: 1, rd Party % % 21% 100% 15% 21% 31% Equipment Failure 21% 5% - 86% 82% 50% 96% 93% 100% % 37% - 39% 36% - Operation 2% 1% - 14% 18% - 2% 4% - 100% 100% % 100% - 44% 41% - 45% 41% - Other 39% 86% 19% Vegetation/Animal 38% 9% 81% % 3% % 98% % % 2% 69% Weather/Fire/Earthquake % 2% % 0% - LISA ANNE(12KV) - Customers: 1, rd Party % 12% 42% 77% % % % Equipment Failure 100% 100% - 13% 42% - 22% 3% % 38% 100% 72% 37% 46% Operation % 16% 23% % 11% % 62% - 20% 61% - Vegetation/Animal % 89% % 2% - Weather/Fire/Earthquake % 97% 40% MELISSA(12KV) - Customers: 1, rd Party % 66% 49% 100% 91% 92% % 12% - 14% 29% - Equipment Failure 71% 34% - 98% 98% 30% 3% 3% % 100% - 100% 100% % 36% - Operation 4% 2% % 82% - 1% 31% - Other % 47% Vegetation/Animal 5% 32% - 2% 2% 35% 3% 2% - 9% 8% % 6% - 2% 4% - Weather/Fire/Earthquake 19% 32% MONSOON(12KV) - Customers: 1, rd Party 71% 86% % Equipment Failure 16% 5% % 88% Operation 2% 3% % 12% % 100% % 100% - Vegetation/Animal 11% 7% 100%

24 Reliability Histories for Individual Circuits Serving Orange District 3-10 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 MUIRLANDS(12KV) - Customers: 2, rd Party % 100% 100% Equipment Failure % 100% 100% % 100% 100% Operation 100% 100% - 100% 100% - 0% 0% MYFORD(12KV) - Customers: 2, rd Party % Equipment Failure Operation NEPAL(12KV) - Customers: 1, rd Party 38% 36% 39% 5% 1% - 4% 10% Equipment Failure 7% 1% - 93% 99% - 40% 20% 100% 100% 100% - 100% 100% - 99% 76% - 95% 75% - 97% 86% - Operation 1% 1% - 1% 0% - 56% 70% % 24% % 1% - Other % Weather/Fire/Earthquake 54% 62% 8% 2% 0% % 25% 100% 3% 13% 100% ONBORD(12KV) - Customers: 1, rd Party % Equipment Failure 62% 34% 10% 96% 56% - 25% 1% 94% % 100% - 95% 83% 100% 94% 91% 100% Operation 15% 30% - 4% 44% - 17% 50% % 14% - 0% 3% - Other 16% 3% 80% % 48% 5% % 2% - 0% 1% - Vegetation/Animal 6% 34% 11% % 61% % 3% - Weather/Fire/Earthquake % 0% 1% 11% 39% % 2% - 24

25 Reliability Histories for Individual Circuits Serving Orange District 3-11 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 PERSIA(12KV) - Customers: 2, rd Party % Equipment Failure 100% 100% 67% 100% 98% - 86% 50% % 99% 100% % 99% 100% Operation % 2% - 14% 50% % 1% % 1% - QATAR(12KV) - Customers: 1, Equipment Failure % 97% % 46% % 36% - Operation 100% 100% 100% 100% 100% - 2% 3% - 100% 100% - 47% 54% % 64% - RACINE(12KV) - Customers: 1, Equipment Failure 94% 94% 100% 94% 98% 100% % 100% - 100% 100% % 100% - Operation 6% 6% - 1% 1% Other % 1% REDHILL(12KV) - Customers: Equipment Failure Operation 100% 100%

26 Reliability Histories for Individual Circuits Serving Orange District 3-12 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 RUSTIC(12KV) - Customers: 3, rd Party 15% 55% 87% 60% 91% 94% 6% 2% 52% % 56% - 66% 95% 1% % 46% 1% Equipment Failure 40% 9% 6% 0% 0% - 94% 98% - 52% 93% % 0% % 46% - Operation 8% 12% - 7% 4% Other 10% 5% 7% 32% 5% 6% % 48% 7% 100% 32% 44% 100% 0% 0% 11% 100% 100% - 38% 5% 23% Vegetation/Animal 3% 4% Weather/Fire/Earthquake 24% 15% % 5% 88% % 2% 76% SIAM(12KV) - Customers: 2, Equipment Failure 69% 63% - 100% 100% Operation 12% 22% % 100% Vegetation/Animal 19% 16% SKYPARK(12KV) - Customers: Equipment Failure % 100% 40% Operation % SLATE(12KV) - Customers: Equipment Failure Operation Weather/Fire/Earthquake % % 26

27 Reliability Histories for Individual Circuits Serving Orange District 3-13 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 SOLITAIRE(12KV) - Customers: Equipment Failure % Operation SRI LANKA(12KV) - Customers: 1, Equipment Failure % 100% % 100% % 74% - Operation % 100% % 26% - Other % ST. THOMAS(12KV) - Customers: 1, Equipment Failure Operation % 100% % 100% % 100% - Other 100% 100% % Vegetation/Animal % % SUDAN(12KV) - Customers: 1, Equipment Failure % 64% - 100% 100% Operation 100% 100% - 60% 36%

28 Reliability Histories for Individual Circuits Serving Orange District 3-14 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 CircuitHistory14 SAIFI MAIFI SAIDI SAIFI MAIFI TAIWAN(12KV) - Customers: 1, rd Party % 78% - 6% 33% - Equipment Failure 35% 27% - 100% 100% 25% 100% 99% 100% % 100% 100% 24% 19% % 44% 98% Operation 47% 47% 45% 0% 0% - 0% 1% - 100% 100% % 81% - 79% 21% 100% 57% 23% 2% Other 18% 25% 55% % % 1% - 5% 1% - Vegetation/Animal % TORNADO(12KV) - Customers: 1, rd Party % Equipment Failure 58% 87% - 36% 16% - 97% 75% % 50% % 14% - Operation 41% 13% - 1% 1% - 3% 25% - 100% 100% % 50% - 100% 100% - 72% 86% - Vegetation/Animal 1% 0% - 1% 1% Weather/Fire/Earthquake % 82% TYPHOON(12KV) - Customers: 1, rd Party % 1% 50% Equipment Failure % 8% - 1% 0% % 27% % 3% - Operation 93% 88% - 50% 91% - 49% 11% - 100% 100% % 73% - 100% 100% - 77% 97% - Vegetation/Animal 7% 12% 100% 2% 0% 50% Weather/Fire/Earthquake % 89% 100% VORTEX(12KV) - Customers: rd Party % Equipment Failure 98% 88% - 15% 4% - 91% 54% 100% Operation % 52% % 100% % 100% - Other % Vegetation/Animal 2% 12% - 64% 44% - 9% 46%