Circuit Reliability Review

Transcription

1 Circuit Reliability Review Los Angeles District 2 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 Los Angeles District 2 CityList1 AGOURA HILLS ALHAMBRA ALTADENA CITY ARCADIA ARTESIA ATHENS/WESTMONT BALDWIN HILLS BALDWIN PARK BELL BELL GARDENS BELLFLOWER BEVERLY HILLS BRADBURY CALABASAS CARSON CASA CONEJO CERRITOS CITY OF INDUSTRY (SHARED) COMMERCE COMPTON CUDAHY CULVER CITY DEL AIRE DEL REY DOMINGUEZ HILLS/RANCHO DOMINGUEZ DUARTE EAST LOS ANGELES EAST PASADENA EAST RANCHO DOMINGUEZ EAST SAN GABRIEL EL CAMINO VILLAGE EL MONTE EL SEGUNDO FLORENCE/FIRESTONE FRANKLIN CANYON GARDENA GLENDALE GRAHAM HARBOR CITY HAWAIIAN GARDENS HAWTHORNE HERMOSA BEACH HIDDEN HILLS HUNTINGTON PARK INGLEWOOD IRWINDALE LA CANADA FLINTRIDGE LA CRESCENTA-MONTROSE LADERA HEIGHTS LAKEWOOD LAWNDALE LENNOX LOMITA LONG BEACH (SHARED) LOS ALAMITOS LOS ANGELES (PORTION) LOS ANGELES/UNINCORPORATED (ZIPS 59, 61, 01, 02, 22, 23) LYNWOOD MALIBU MANHATTAN BEACH MARINA DEL REY MAYFLOWER VILLAGE MAYWOOD MONROVIA MONTEBELLO (SHARED) MONTEREY PARK MOORPARK OAK PARK PALOS VERDES ESTATES PARAMOUNT PASADENA PICO RIVERA (SHARED) RANCHO DOMINGUEZ RANCHO PALOS VERDES REDONDO BEACH ROLLING HILLS ROLLING HILLS ESTATES ROSEMEAD ROSEWOOD/WEST RANCHO DOMINGUEZ ROSSMOOR SAN GABRIEL (SHARED) SAN MARINO SANTA MONICA SEAL BEACH SIERRA MADRE SIGNAL HILL SIMI VALLEY SOUTH EL MONTE SOUTH GATE SOUTH PASADENA SOUTH SAN GABRIEL TEMPLE CITY (SHARED) TERRACE THOUSAND OAKS TORRANCE (SHARED) UNIVERSAL CITY VIEW PARK/WINDSOR HILLS VINCENT WALNUT PARK WEST CARSON (PORTION) WEST HOLLYWOOD WEST PUENTE VALLEY WEST RANCHO DOMINGUEZ/VICTORIA WESTLAKE VILLAGE WHITTIER (SHARED) WILLOWBROOK WISEBURN 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 Los Angeles District 2 CircuitList1 There are 141 circuits that serve Los Angeles District 2 1 Circuit Type Customers Circuit Type Customers Circuit Type Customers Circuit Type Customers ADA(4.16KV) 1,101 CREAMERY(16KV) 1,739 HOOPER(4.16KV) 1,370 PALOMAR(4.16KV) 682 ALASKA(16KV) 1,877 CROCKETT(4.16KV) 1,541 HUB CITY(16KV) 1,712 PANCAKE(4.16KV) 620 ALBACORE(16KV) 1,764 DALBERG(16KV) 38 JAVA(4.16KV) 438 PATHE(16KV) 1,206 ALBANY(16KV) 1,477 DALESIDE(16KV) 3,756 JENKINS(16KV) 1,374 PEACH(16KV) 503 ANDRUS(4.16KV) 1,043 DEBORAH(16KV) 2,583 JUDAH(4.16KV) 881 PENROSE(16KV) 1,833 ANTWERP(4.16KV) 893 DENKER(4.16KV) 2,142 JUNEAU(4.16KV) 628 PLUM(4.16KV) 1,181 ANZA(4.16KV) 774 DONNA(16KV) 532 KALMIA(16KV) 2,825 PRINCE(16KV) 397 ANZAC(4.16KV) 1,016 DOWELL(4.16KV) 538 KATHLEEN(16KV) 676 PULP(16KV) 812 APRICOT(16KV) 595 DRIFT(12KV) 1,380 KERNAN(16KV) 646 RAHN(16KV) 133 ARDMORE(16KV) 1,447 EMSCO(16KV) 702 KORNBLUM(4.16K 989 RAYBORN(4.16KV) 1,475 ATLANTIC(16KV) 2,864 ENGLAND(4.16KV) 386 LADERA(4.16KV) 779 REASONER(16KV) 580 AUBURN(16KV) 873 ENSIGN(4.16KV) 965 LANTANA(16KV) 789 REPUBLIC(16KV) 3,815 BLIMP(16KV) 3,723 EPSILON(16KV) 128 LOCK(4.16KV) 1,629 RUTHELLEN(16KV) 1,819 BOEING(16KV) 2,077 EZRA(4.16KV) 1,032 LOMBARD(16KV) 1,718 RYAN(16KV) 3,936 BOGART(16KV) 1,660 FIRMONA(16KV) 1,897 MARGARET(16KV) 5,064 SANDRA(16KV) 4,342 BOLAND(4.16KV) 1,245 GEARLINE(16KV) 390 MCDONNELL(16KV 2,041 SHERBOURNE(16K 1,809 BOLTON(16KV) 2,674 GIBSON(16KV) 540 MCKINLEY(4.16KV) 983 SIGMA(16KV) 112 BOSTON(4.16KV) 1,050 GIRDER(4.16KV) 1,254 MIRAMONTE( SILVERSIDE(16KV) 3,370 BUDLONG(4.16KV) 2,028 GLENCOE(4.16KV) 1,208 MONA(4.16KV) 1,024 SPARTON(16KV) 1,174 BURMA(16KV) 567 GRAPE(16KV) 366 MOWDER(4.16KV) 700 SPINNING(4.16KV) 1,131 CALM(12KV) 930 GRAVEYARD(16KV) 1,391 NADEAU(4.16KV) 855 SQUALL(12KV) 1,684 CAPSTAN(16KV) 227 GULF(4.16KV) 935 NESTOR(4.16KV) 1,429 STACY(4.16KV) 794 CARTER(4.16KV) 998 HALLDALE(16KV) 2,743 NISLEY(16KV) 3,139 STOCKER(16KV) 2,193 CASWELL(16KV) 291 HARBOR(4.16KV) 1,231 NORMANDIE(4.16 2,291 STOCKWELL(4.16K 1,463 CENTURY(4.16KV) 680 HARDY(4.16KV) 804 NORTHRIDGE( STORM(12KV) 3,225 CHRIS(12KV) 1,398 HAWTHORNE(16KV) 2,483 OCCIDENTAL(16KV 688 SUMMERHILL(16K 3,252 CIMARRON(16KV) 3,710 HAYWARD(4.16KV) 943 OCTANE(16KV) 3,643 SUNDALE(4.16KV) 993 CLEMONT(4.16KV) 1,243 HEADLEY(2.4KV) 20 OVERHILL(4.16KV) 924 SUPERIOR(12KV) 1,939 CONVERSE(4.16KV) 972 HINDRY(4.16KV) 470 OXFORD(4.16KV) 976 TAPER(4.16KV) 1,137 CRANBROOK(4.16KV) 743 HOLMES(16KV) 404 PACOMA(4.16KV) 1,133 TICHENOR(16KV) 1,252 Grand Total 188,746 7

8 Overview of Los Angeles District 2 CircuitList2 There are 141 circuits that serve Los Angeles District 2 2 Circuit Type Customers Circuit Type Customers Circuit Type Customers Circuit Type Customers TORSON(16KV) TRANSIT(16KV) TROCHU(4.16KV) 1, TRUSS(4.16KV) 1, TUCKER(4.16KV) VAN WICK(4.16KV) 1, VERDUN(16KV) VULTEE(4.16KV) 2, WAGNER(4.16KV) 1, WARD(4.16KV) WATTS(16KV) 1, WAYSIDE(16KV) WESTERN(4.16KV) WHITE(16KV) WHITSETT(16KV) WILDCAT(16KV) 1, WINONA(16KV) 1, ZAMORA(16KV) ZEBRA(16KV) 2, ZENO(16KV) ZEPPELIN(0KV) Grand Total 188,746 8

9 Reliability History of Circuits Serving Los Angeles District 2 (No Exclusions) BarChart SAIDI (average minutes of sustained interruptions) Los Angeles District SCE SYSTEMWIDE SAIFI (average frequency of sustained interruptions) 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 9

10 Causes of Repair Outages in Los Angeles District SAIDIChart Vegetation /Animal 1.7% Contributions to SAIDI by Outage Cause Weather /Fire /Earthquake 4.6% 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 8.5% Other 10.2% Equipment Failure 47.5% 3rd Party 27.4% 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. 10

11 Causes of Repair Outages in Los Angeles District SAIFIChart Contributions to SAIFI by Outage Cause Vegetation /Animal 3.9% Weather /Fire /Earthquake 6.3% 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 14.4% Operation 12.7% Equipment Failure 37.3% 3rd Party 25.5% 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 11

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14 Back-up Slides Reliability Histories of Circuits Serving Los Angeles District 2 Updated through Dec 2017

15 Average Reliability of 141 Circuits Serving Los Angeles District 2 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 141 Circuits Serving Los Angeles District 2 -- Total Customers: 188, rd Party 14% 20% 28% 18% 19% 30% 33% 23% 34% 10% 13% 24% 40% 31% 37% 36% 35% 31% 25% 24% 26% 27% 25% 30% Equipment Failure 43% 39% 14% 47% 44% 17% 34% 38% 23% 63% 43% 17% 40% 23% 3% 40% 32% 21% 45% 51% 12% 48% 37% 13% Operation 9% 7% 9% 14% 16% 6% 12% 22% 5% 8% 21% - 5% 5% 0% 6% 14% 1% 15% 11% 4% 9% 13% 1% Other 6% 9% 29% 9% 7% 19% 11% 8% 19% 8% 6% 35% 9% 30% 37% 16% 15% 37% 9% 7% 20% 10% 14% 33% Vegetation/Animal 5% 7% 14% 6% 6% 17% 3% 5% 12% 0% 0% 5% 1% 8% 18% 1% 2% 9% 5% 5% 37% 2% 4% 17% Weather/Fire/Earthquake 23% 19% 7% 7% 8% 10% 6% 4% 7% 10% 17% 19% 5% 4% 4% 2% 2% 1% 1% 2% 1% 5% 6% 6% 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. 15

16 Reliability Histories for Individual Circuits Serving Los Angeles District 2-1 of 36 SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI ADA(4.16KV) - Customers: 1, CircuitHistory rd Party 67% 74% 60% % % % % Equipment Failure 28% 15% % 96% 95% 51% 100% 100% 50% % 4% 10% Operation 5% 12% - 100% 100% - 4% 5% % 4% % 4% - Other % % % % 89% 96% 86% % 92% 70% ALASKA(16KV) - Customers: 1, rd Party 1% 2% % 25% 25% Equipment Failure % 19% - 34% 50% 75% Operation 0% 1% 0% 16% 18% - 23% 26% % 100% - 100% 100% % 100% - Other % 56% 63% Vegetation/Animal % 1% Weather/Fire/Earthquake 99% 97% 20% % 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% % % ALBANY(16KV) - Customers: 1, rd Party % 100% % % % Equipment Failure % 17% 11% % % Operation % 83% 26% % 100% % 100% - 100% 100% - Other % % % Vegetation/Animal % % 16

17 Reliability Histories for Individual Circuits Serving Los Angeles District 2-2 of 36 CircuitHistory 2 SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI ANDRUS(4.16KV) - Customers: 1, rd Party Equipment Failure 100% 100% % 3% 50% Operation % 97% 50% Other % Weather/Fire/Earthquake % 100% 100% ANTWERP(4.16KV) - Customers: rd Party % % % % % Equipment Failure 65% 50% 20% % 100% 100% 28% Operation % 27% Other 35% 50% 60% 85% 73% % Vegetation/Animal % % % ANZA(4.16KV) - Customers: rd Party 100% 100% 33% % 79% 92% 66% % % % 72% 96% - 31% 32% 40% Equipment Failure % 100% 100% - 10% 2% 34% Operation % 6% % 100% - 28% 4% - 19% 2% - Other % % % 27% 50% 17% % 33% 20% Weather/Fire/Earthquake % 50% 67% % 33% 40% ANZAC(4.16KV) - Customers: 1, rd Party % % % % % % Equipment Failure 61% 50% 17% 96% 98% 75% 100% 100% 33% Operation % 2% Other 1% 0% 50% % Vegetation/Animal % % % Weather/Fire/Earthquake 38% 50% 16%

18 Reliability Histories for Individual Circuits Serving Los Angeles District 2-3 of 36 CircuitHistory 3 SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI APRICOT(16KV) - Customers: rd Party 39% 33% 5% 7% 5% 46% % 100% 99% % 99% - Equipment Failure 61% 67% 10% 93% 95% 54% 93% 96% 19% Operation % 4% - 0% 1% % 1% - Other % % Vegetation/Animal % % ARDMORE(16KV) - Customers: 1, rd Party % 72% 46% 95% 95% Equipment Failure % 28% 27% 4% 1% - 100% 100% % 100% - 95% 71% - Operation % 4% % 100% % 29% - Other % % % Vegetation/Animal % ATLANTIC(16KV) - Customers: 2, rd Party 95% 99% 50% % 59% 49% 100% 100% % 7% 25% Equipment Failure 3% 0% - 41% 80% - 41% 54% 65% % 100% % 81% - Operation 2% 0% % 6% Other % 59% 20% - 53% 40% 35% 39% 41% 51% % % 100% 100% 60% 11% 75% Vegetation/Animal % 0% Weather/Fire/Earthquake % AUBURN(16KV) - Customers: rd Party 53% 45% 56% Equipment Failure 14% 50% 44% % 97% - 100% 100% - 100% 100% % 99% - Operation 32% 5% - 4% 8% - 17% 6% % 100% - 0% 0% - Other % 3% 100% % % 1% 67% Vegetation/Animal % 87% 69% 83% 94% % % Weather/Fire/Earthquake % 4% 31%

19 Reliability Histories for Individual Circuits Serving Los Angeles District 2-4 of 36 CircuitHistory 4 SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI BLIMP(16KV) - Customers: 3, rd Party % % 6% % 1% - Equipment Failure 51% 59% - 65% 52% 23% 27% 16% - 67% 8% - 3% 0% - 93% 66% 100% 94% 96% - 84% 46% 49% Operation % 46% - 7% 3% - 33% 92% - 81% 94% - 7% 34% % 51% - Other % 2% - 25% 6% 21% % % Vegetation/Animal 6% 0% 50% % Weather/Fire/Earthquake 43% 40% 50% % 42% 75% 58% % 4% - 3% 2% - BOEING(16KV) - Customers: 2, rd Party Equipment Failure % 1% - 100% 100% - 17% 1% % % 1% 100% Operation 40% 7% 48% % 7% 11% Other % 85% 92% % 99% % 99% - Weather/Fire/Earthquake 60% 93% 52% % BOGART(16KV) - Customers: 1, rd Party % 52% 100% 39% 46% Equipment Failure % 53% % 100% - 43% 6% - 100% 100% - 97% 92% - Operation % 0% - 0% 0% % 6% % 0% - Other % % % Vegetation/Animal % 24% 43% % 88% 100% % 8% 50% Weather/Fire/Earthquake % 9% 4% BOLAND(4.16KV) - Customers: 1, rd Party 100% 100% 100% 54% 33% Equipment Failure % 0% % 100% % 95% 30% % 26% 50% Operation % 100% 100% % 100% - 5% 70% % 74% - Other % 33% 25% Vegetation/Animal % % Weather/Fire/Earthquake % 33% 50%

20 Reliability Histories for Individual Circuits Serving Los Angeles District 2-5 of 36 CircuitHistory 5 SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI BOLTON(16KV) - Customers: 2, rd Party 25% 37% 53% % % 86% 100% % 27% 55% Equipment Failure 14% 5% - 0% 0% - 4% 0% 28% 77% 69% - 3% 1% - 56% 93% 100% % 49% 29% Operation 58% 57% 18% 81% 73% 28% 2% 4% 29% 1% 1% - 20% 13% - 44% 7% - 100% 100% - 12% 5% - Other % 27% 72% 94% 96% 16% Vegetation/Animal % Weather/Fire/Earthquake 2% 2% % 31% 100% % 18% 16% BOSTON(4.16KV) - Customers: 1, rd Party Equipment Failure % 83% Operation % 17% - 100% 100% - 100% 100% % 100% - Other % % % BUDLONG(4.16KV) - Customers: 2, rd Party 79% 88% 100% % 17% 31% Equipment Failure 21% 12% % 37% 100% Operation % 32% Other % BURMA(16KV) - Customers: rd Party 33% 9% 17% 84% 98% Equipment Failure 66% 91% 11% 16% 2% % % 100% 100% 88% 65% 49% Operation % % 100% % 35% - Other % % % Vegetation/Animal % Weather/Fire/Earthquake 1% 0% 18%

21 Reliability Histories for Individual Circuits Serving Los Angeles District 2-6 of 36 CircuitHistory 6 SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI CALM(12KV) - Customers: rd Party 76% 89% 100% 100% 100% % Equipment Failure 24% 11% Operation % 100% Other % 0% % Vegetation/Animal % % CAPSTAN(16KV) - Customers: rd Party % 1% % - - 1% Equipment Failure 100% 100% 50% % 98% % 49% - Operation % 100% Other % 99% - 100% 100% 100% 12% 2% % 51% 99% Vegetation/Animal % Weather/Fire/Earthquake % CARTER(4.16KV) - Customers: rd Party 100% 100% 25% 18% 70% - 31% 5% 27% % % Equipment Failure % 29% - 33% 37% 18% 95% 98% % 98% - Operation % 1% - 33% 23% - 5% 2% % 2% - Other % % 35% 55% % % CASWELL(16KV) - Customers: rd Party % 100% 28% % 50% 22% Equipment Failure % 100% 11% % 100% % 0% - Operation 100% 100% - 100% 100% 63% Other % 100% 100% 100% % 50% 22% Vegetation/Animal % % % % Weather/Fire/Earthquake %

22 Reliability Histories for Individual Circuits Serving Los Angeles District 2-7 of 36 CircuitHistory 7 SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI CENTURY(4.16KV) - Customers: rd Party % % % % Equipment Failure % 99% 60% % 50% - 29% 40% - 100% 100% - 93% 49% - Operation % 1% - 100% 100% - 100% 100% % 40% % 7% - Other % 50% 100% 30% 20% % 44% 50% Weather/Fire/Earthquake % CHRIS(12KV) - Customers: 1, rd Party % 70% 71% % 100% - 100% 100% 100% % 68% 81% Equipment Failure 100% 100% 100% 59% 23% - 96% 99% 100% % 46% - 7% 15% - Operation 0% 0% - 6% 7% - 4% 1% Other % % 54% 100% 28% 17% 19% CIMARRON(16KV) - Customers: 3, rd Party 69% 71% 21% 0% 0% 50% 53% 34% 52% % 97% 99% 24% 100% 100% 100% 97% 98% 56% Equipment Failure % 95% 26% 5% 1% % 0% - 0% 0% - Operation 2% 0% - 3% 1% - 11% 38% - 100% 100% - 100% 100% - 3% 1% % 2% - Other % 1% % % % Vegetation/Animal 8% 1% 58% 8% 3% 25% 18% 23% 35% Weather/Fire/Earthquake 21% 28% 21% % 4% 13% CLEMONT(4.16KV) - Customers: 1, rd Party % 100% 50% % % % Equipment Failure 100% 100% % 100% 100% % 100% - Operation % 100% 20% Other % % % % Weather/Fire/Earthquake %

23 Reliability Histories for Individual Circuits Serving Los Angeles District 2-8 of 36 CircuitHistory 8 SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI CONVERSE(4.16KV) - Customers: rd Party % % 69% 49% % % % Equipment Failure % 100% - 24% 2% 55% Operation 100% 100% % 50% 45% Other % % % Weather/Fire/Earthquake % 100% - 100% 100% % 100% - CRANBROOK(4.16KV) - Customers: rd Party % % % 100% 100% % 98% 50% Equipment Failure 100% 100% 100% % 67% 33% % % Operation % 100% - 44% 33% % 100% - 5% 2% - Other CREAMERY(16KV) - Customers: 1, rd Party % % 97% 100% Equipment Failure 100% 100% - 100% 100% Operation % 3% Other % % % Vegetation/Animal % % CROCKETT(4.16KV) - Customers: 1, rd Party % % % % 96% % 95% 34% Equipment Failure 93% 71% Operation 7% 29% % 100% % 2% - Other % % % 10% 4% 100% % 4% 66% 23

24 Reliability Histories for Individual Circuits Serving Los Angeles District 2-9 of 36 CircuitHistory 9 SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI DALBERG(16KV) - Customers: rd Party 99% 98% Equipment Failure Operation 1% 2% % 67% Other % 33% Vegetation/Animal % % 100% 100% % 100% 100% 100% 100% 100% DALESIDE(16KV) - Customers: 3, rd Party 58% 50% 22% % % 100% 100% % 80% 50% Equipment Failure % 97% 4% 60% 60% 33% % 100% % 5% - Operation 24% 1% 26% 0% 1% - 40% 40% % 100% - 2% 2% - Other Vegetation/Animal 18% 50% 26% 3% 3% 96% % 100% 100% % 15% 13% 50% Weather/Fire/Earthquake 0% 0% 26% DEBORAH(16KV) - Customers: 2, rd Party % 47% 74% 89% 55% 41% Equipment Failure 40% 56% 27% 90% 50% 26% 2% 0% Operation 0% 0% - 2% 3% - 1% 0% Other % % Vegetation/Animal % 45% Weather/Fire/Earthquake 60% 44% 45% DENKER(4.16KV) - Customers: 2, rd Party % 40% 50% % % Equipment Failure % 40% 50% Operation % 1% - 4% 20% - 30% 10% - 100% 100% % 11% - Other Weather/Fire/Earthquake % 99% % 90% 100% % 89% 33% 24

25 Reliability Histories for Individual Circuits Serving Los Angeles District 2-10 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 DONNA(16KV) - Customers: rd Party Equipment Failure 100% 100% - 85% 60% - 100% 100% Operation % 40% Other Vegetation/Animal % % % DOWELL(4.16KV) - Customers: rd Party 47% 48% % 99% Equipment Failure 51% 51% 100% 78% 61% - 21% 1% - 100% 100% % 100% - 80% 51% - Operation 3% 1% - 22% 39% % 100% 100% % 49% 100% Other % DRIFT(12KV) - Customers: 1, rd Party % Equipment Failure % 100% 100% % 100% % 100% 29% 100% 100% 29% Operation Other Vegetation/Animal % % EMSCO(16KV) - Customers: rd Party 32% 19% 100% % 34% 32% Equipment Failure 49% 57% - 100% 100% 100% 28% 33% 37% 100% 100% 100% 100% 100% 100% 100% 100% % 100% 100% Operation Other % 34% 31% Weather/Fire/Earthquake 19% 24%

26 Reliability Histories for Individual Circuits Serving Los Angeles District 2-11 of 36 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 ENGLAND(4.16KV) - Customers: rd Party Equipment Failure 100% 100% - 38% 21% Operation % 79% % 100% - 100% 100% % 100% - Other % % ENSIGN(4.16KV) - Customers: rd Party % % 35% 50% 100% % 1% 1% - 0% 0% 100% Equipment Failure % 85% % 18% - Operation % % 0% - 2% 15% % 99% - 65% 82% - Other % 50% EPSILON(16KV) - Customers: rd Party 4% 60% 29% 100% 100% 100% 72% 89% 44% Equipment Failure 5% 20% 29% % 10% 56% 100% 100% 100% 73% 76% 60% % 61% 59% Operation 91% 20% % 1% Other % 24% 40% % 19% 20% Vegetation/Animal % % 100% 100% 4% 20% 21% EZRA(4.16KV) - Customers: 1, rd Party % % 30% 22% 33% % % % Equipment Failure 100% 100% - 80% 41% - 25% 44% 33% Operation % 59% - 45% 35% - 100% 100% % 100% - Other % % % Weather/Fire/Earthquake % % 26

27 Reliability Histories for Individual Circuits Serving Los Angeles District 2-12 of 36 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 FIRMONA(16KV) - Customers: 1, rd Party % 8% Equipment Failure 84% 84% - 47% 3% % 12% % 8% - Operation 16% 16% % 4% - 80% 88% % 100% - 31% 63% - Other % Vegetation/Animal % 88% 50% 86% 96% % 100% 100% % 29% 100% GEARLINE(16KV) - Customers: rd Party 13% 2% 32% Equipment Failure 87% 98% 32% Operation Other % 86% 97% Vegetation/Animal % % 3% 100% GIBSON(16KV) - Customers: rd Party % % Equipment Failure % 100% 50% Operation Other % Vegetation/Animal % 100% 100% GIRDER(4.16KV) - Customers: 1, rd Party 96% 97% Equipment Failure 4% 2% % 59% 100% % 100% % 45% - Operation 0% 1% % 41% % 100% % 55% - Other % % % 27

28 Reliability Histories for Individual Circuits Serving Los Angeles District 2-13 of 36 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 GLENCOE(4.16KV) - Customers: 1, rd Party % % 97% 98% % % Equipment Failure 100% 100% - 19% 21% Operation % 79% - 3% 2% - 100% 100% - 100% 100% % 100% - Other % % % Vegetation/Animal % % GRAPE(16KV) - Customers: rd Party % 100% % 100% % 100% - Equipment Failure % Operation Other % % % Vegetation/Animal % Weather/Fire/Earthquake % GRAVEYARD(16KV) - Customers: 1, rd Party 5% 4% - 7% 30% Equipment Failure 90% 90% 60% 74% 35% - 76% 51% % 96% 32% % 100% - 80% 95% 19% Operation 5% 5% - 1% 2% % 4% - 100% 100% % 5% - Other % % % % Vegetation/Animal % 33% 100% 24% 49% 50% % 0% 68% % 0% 41% GULF(4.16KV) - Customers: rd Party % 96% 100% 21% 10% - 100% 100% % 100% - Equipment Failure 100% 100% % 90% Operation % 4% Other % % % % 28

29 Reliability Histories for Individual Circuits Serving Los Angeles District 2-14 of 36 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 HALLDALE(16KV) - Customers: 2, rd Party 100% 100% - 73% 49% 2% 12% 1% 71% 100% 100% 100% % 33% 51% Equipment Failure % 48% 2% 33% 29% 15% % 1% % 0% - Operation % 1% 1% - 56% 70% Other % % 99% % 33% - Vegetation/Animal % % % % 100% % 7% 34% 49% Weather/Fire/Earthquake % 3% HARBOR(4.16KV) - Customers: 1, rd Party % 73% 100% % Equipment Failure % 36% 27% - 11% 2% Operation 100% 100% Other % 98% 71% HARDY(4.16KV) - Customers: rd Party % % % % 100% 33% % 49% 20% Equipment Failure 97% 99% 27% 57% 50% % 2% % 1% - Operation 3% 1% % 4% % 2% % 1% - Other % 43% 50% 50% 29% 23% 63% % 66% 97% 100% % % 49% 80% Weather/Fire/Earthquake % 73% HAWTHORNE(16KV) - Customers: 2, rd Party 54% 54% 31% 18% 17% 23% 68% 34% 16% % 97% 100% 67% 8% 100% % 67% 67% Equipment Failure 46% 46% - 19% 40% - 23% 43% 50% Operation % 40% - 8% 22% - 100% 100% - 1% 2% - 33% 92% % 32% - Other % 4% 2% 39% % % Vegetation/Animal % 2% 38% 1% 1% 34% Weather/Fire/Earthquake % 1% % 1% - 29

30 Reliability Histories for Individual Circuits Serving Los Angeles District 2-15 of 36 SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI CircuitHistory15 SAIFI MAIFI SAIDI SAIFI MAIFI HAYWARD(4.16KV) - Customers: rd Party 80% 95% 100% % 15% 100% Equipment Failure 18% 3% - 82% 6% 24% 56% 43% % 100% - 100% 100% - 100% 100% - Operation 2% 2% - 6% 4% 25% 12% 42% Other % % Vegetation/Animal % % Weather/Fire/Earthquake % 91% 50% HEADLEY(2.4KV) - Customers: rd Party % % % 100% 100% % 100% - Equipment Failure 100% 100% - 100% 100% - 100% 100% 42% Operation Other % HINDRY(4.16KV) - Customers: rd Party Equipment Failure 100% 100% 100% 100% 100% 44% 100% 100% % 100% % 4% - Operation % 2% - 14% 2% - Other % % 98% - 67% 94% - HOLMES(16KV) - Customers: rd Party 95% 84% 100% % 91% 98% - 100% 100% % % 49% 50% Equipment Failure 5% 16% % 1% % 100% % 51% - Operation % 1% Other % % % % Vegetation/Animal %

31 Reliability Histories for Individual Circuits Serving Los Angeles District 2-16 of 36 CircuitHistory16 SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI HOOPER(4.16KV) - Customers: 1, rd Party % 51% 58% % % % % Equipment Failure % 0% - 58% 1% 31% Operation 100% 100% - 61% 48% 42% 42% 99% 34% Other % % % Weather/Fire/Earthquake % 100% 33% % 100% 20% HUB CITY(16KV) - Customers: 1, rd Party 90% 96% 100% 21% 15% % 99% 100% % 62% 35% Equipment Failure % 98% 33% % 1% - 79% 60% - 60% 23% - Operation 10% 4% - 79% 85% 50% 3% 2% % 34% - 14% 13% - Other Vegetation/Animal % % % % 6% 100% 1% 2% 65% JAVA(4.16KV) - Customers: rd Party % % Equipment Failure 98% 96% Operation 2% 4% % Other % 100% % 100% - Vegetation/Animal % % JENKINS(16KV) - Customers: 1, rd Party % 65% 100% % Equipment Failure 94% 99% 34% % 100% % 100% - 100% 100% - 37% 50% - Operation 5% 1% 1% % 1% % % 0% 1% 67% Other % 35% % 100% 99% % 50% - Vegetation/Animal 0% 0% 65% % % 31

32 Reliability Histories for Individual Circuits Serving Los Angeles District 2-17 of 36 SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI CircuitHistory17 SAIFI MAIFI SAIDI SAIFI MAIFI JUDAH(4.16KV) - Customers: rd Party Equipment Failure % 100% - 100% 100% 100% % 100% % 100% 100% Operation % 100% Other JUNEAU(4.16KV) - Customers: rd Party % Equipment Failure % 66% - 57% 67% 33% % 100% - 83% 88% % 90% - Operation 100% 100% - 2% 34% - 43% 33% Other % % % 12% % 10% - KALMIA(16KV) - Customers: 2, rd Party 11% 4% - 100% 100% 50% % Equipment Failure % 99% 0% % 100% - 67% 31% - 64% 19% - 72% 32% - Operation 3% 1% % 14% % 8% - Other % % % % 54% % 19% 31% 100% Vegetation/Animal 86% 95% 3% % 1% 14% Weather/Fire/Earthquake % 81% - 8% 29% - KATHLEEN(16KV) - Customers: rd Party % 100% 100% % % Equipment Failure 54% 66% - 0% 0% - 100% 100% Operation % % 5% % 3% - Other % 95% 100% % 100% - 97% 97% 48% Vegetation/Animal % % Weather/Fire/Earthquake 46% 34%

33 Reliability Histories for Individual Circuits Serving Los Angeles District 2-18 of 36 SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI CircuitHistory18 SAIFI MAIFI SAIDI SAIFI MAIFI KERNAN(16KV) - Customers: rd Party 0% 0% - 98% 100% 50% 77% 66% % 100% % 0% - Equipment Failure 94% 98% % 33% 66% 3% 0% % 100% % 1% - Operation 4% 1% - 2% 0% 50% 1% 1% - 0% 0% % 0% - Other 1% 1% 50% % Vegetation/Animal % Weather/Fire/Earthquake % 100% % 100% 100% 88% 99% 100% KORNBLUM(4.16KV) - Customers: rd Party % 99% 100% % % % Equipment Failure 93% 50% % 50% % 100% - 9% 2% - Operation 7% 50% - 1% 1% - 41% 25% Other % 100% % 98% - Vegetation/Animal % 25% 50% LADERA(4.16KV) - Customers: rd Party % 50% Equipment Failure 95% 96% 55% 16% 7% - 1% 1% % 100% % 100% - 100% 100% - Operation 5% 4% - 84% 93% - 3% 1% Other % % 48% % % LANTANA(16KV) - Customers: rd Party % 23% 54% 32% % % 46% % 46% - Equipment Failure % 98% - 100% 100% % 1% - Operation % 2% 40% 1% 2% Other % 30% Vegetation/Animal % 54% 100% % 53% 100% Weather/Fire/Earthquake % 14% 29%