Circuit Reliability Review

Transcription

1 Circuit Reliability Review San Gabriel 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 MONROVIA District CityList1 ALTADENA ARCADIA AZUSA BALDWIN PARK BRADBURY DUARTE EAST PASADENA EAST SAN GABRIEL GLENDALE IRWINDALE LA CANADA FLINTRIDGE LOS ANGELES MAYFLOWER VILLAGE MONROVIA PASADENA SAN GABRIEL SAN MARINO SIERRA MADRE SOUTH PASADENA TEMPLE CITY VINCENT WEST PUENTE VALLEY LA CRESCENTA MONTROSE 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 San Gabriel CircuitList1 There are 30 circuits that serve San Gabriel 1 Circuit Type Customers Circuit Type Customers Circuit Type Customers Circuit Type Customers BEAN(4.16KV) BILTON(16KV) 3, DANES(4.16KV) DEERFIELD(16KV) 2, DEL MAR(4.16KV) DOBBINS(4.16KV) EDMOND(4.16KV) ELEMENTARY(4.16KV) ENDICOTT(4.16KV) GABRIELINO(4.16KV) GAINSBOROUGH(16KV) 1, GERONA(16KV) 2, HAMPTON(4.16KV) HIDALGO(4.16KV) HONOR(16KV) 2, LA PRESA(4.16KV) LAS TUNAS(4.16KV) MYDA(4.16KV) NADINE(4.16KV) OLNEY(16KV) 1, PALJAY(16KV) 1, PUTNEY(4.16KV) ROANOKE(4.16KV) RURAL(4.16KV) 1, SARAH(4.16KV) SAXON(4.16KV) SEGOVIA(16KV) 1, SUNNYSLOPE(4.16KV) TELSTAR(16KV) 2, WILLARD(16KV) 2, Grand Total 35,357 7

8 Reliability History of Circuits Serving San Gabriel (No Exclusions) BarChart SAIDI (average minutes of sustained interruptions) San Gabriel 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 San Gabriel 2017 SAIDIChart Contributions to SAIDI 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 Vegetation /Animal 0.7% Weather /Fire /Earthquake 25.4% Other 27.4% 3rd Party 12.7% Equipment Failure 29.4% Operation 4.4% 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. 9

10 Causes of Repair Outages in San Gabriel 2017 SAIFIChart 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 Vegetation /Animal 9.5% Other 13.6% Operation 6.7% Weather /Fire /Earthquake 8.0% 3rd Party 18.4% Equipment Failure 43.7% 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 San Gabriel Updated through Dec 2017

14 Average Reliability of 30 Circuits Serving San Gabriel 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 30 Circuits Serving San Gabriel -- Total Customers: 35, rd Party 16% 25% 26% 18% 21% 10% 20% 17% 14% 10% 5% % 48% 56% 37% % 13% 18% 24% Equipment Failure 59% 49% 40% 20% 36% 4% 33% 36% 30% 17% 44% - 92% 95% 43% 32% 2% - 18% 14% - 29% 44% 18% Operation 4% 6% 2% 6% 4% 7% 34% 22% 1% 1% 7% - 2% 2% 11% 14% 7% - 82% 86% - 4% 7% 5% Other 20% 16% 19% 4% 9% 42% 5% 4% 27% 37% 27% 84% 6% 3% 11% 1% 1% % 27% 14% 36% Vegetation/Animal 1% 3% 12% 3% 12% 32% 2% 12% 24% % 6% 33% 63% % 10% 13% Weather/Fire/Earthquake 0% 1% 1% 48% 19% 4% 6% 10% 4% 35% 17% 16% % 8% 4% 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 San Gabriel - 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 BEAN(4.16KV) - Customers: CircuitHistory rd Party Equipment Failure Operation % 100% % 100% - Other % % BILTON(16KV) - Customers: 3, rd Party % 98% 20% 37% 36% 54% % 100% 100% % 100% 25% Equipment Failure 100% 100% 33% 16% 2% 20% 43% 37% 46% % 100% 50% % 0% 25% Operation % 0% - 1% 0% % % Other % % 2% 1% % % Vegetation/Animal % % Weather/Fire/Earthquake % 26% DANES(4.16KV) - Customers: rd Party 100% 100% Equipment Failure % 100% % 100% % 1% - Operation % 100% Other Weather/Fire/Earthquake % 100% % 99% - DEERFIELD(16KV) - Customers: 2, rd Party % Equipment Failure 69% 61% 45% 72% 36% - 76% 37% 26% % % 100% - 3% 7% 50% Operation 1% 1% - 6% 12% Other 28% 38% - 3% 7% 50% % Vegetation/Animal 2% 1% - 16% 41% 50% 24% 63% 18% % % Weather/Fire/Earthquake % 3% % 100% 100% % 93% - 15

16 Reliability Histories for Individual Circuits Serving San Gabriel - 2 of 8 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 DEL MAR(4.16KV) - Customers: rd Party Equipment Failure 100% 100% % 63% 50% % 100% % 1% - Operation % 4% 37% 50% Other % 100% 100% % 99% 100% DOBBINS(4.16KV) - Customers: rd Party 100% 100% % 27% 100% Equipment Failure Operation % 100% 50% 62% 73% % 100% - 100% 100% - Other % EDMOND(4.16KV) - Customers: rd Party % 20% 35% 39% Equipment Failure % 43% % 43% - Operation % 80% 65% % 57% % 57% - Other % Vegetation/Animal % Weather/Fire/Earthquake % 100% ELEMENTARY(4.16KV) - Customers: rd Party 34% 25% 100% Equipment Failure 56% 50% % 34% 25% % % Operation % 100% Other 10% 24% % 48% 33% 25% Vegetation/Animal % 9% 33% 25% % % Weather/Fire/Earthquake %

17 Reliability Histories for Individual Circuits Serving San Gabriel - 3 of 8 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 ENDICOTT(4.16KV) - Customers: rd Party % Equipment Failure % 100% % 100% % 4% - Operation % 100% 50% % 100% % 96% - Other GABRIELINO(4.16KV) - Customers: rd Party % 6% 31% 33% % 100% 100% % 100% 25% Equipment Failure 97% 92% 33% 7% 4% 24% 37% 29% 33% % % Operation 3% 8% - 47% 34% - 1% 6% % % Other % 47% 62% 24% 33% 3% 33% % % Vegetation/Animal % % Weather/Fire/Earthquake % 32% GAINSBOROUGH(16KV) - Customers: 1, rd Party % % % Equipment Failure % 6% - 92% 90% 19% % 39% 50% % 21% 17% Operation 31% 93% - 2% 1% - 8% 10% % 100% % 47% - Other % % 37% 61% % 33% 33% Vegetation/Animal 69% 7% - 39% 93% 100% % % GERONA(16KV) - Customers: 2, rd Party Equipment Failure 96% 81% % 100% 36% 100% 99% - 100% 100% 100% % 100% 100% Operation 2% 2% - 91% 94% % 1% % 0% - Other % % % Vegetation/Animal 2% 2% % Weather/Fire/Earthquake 1% 15% 50% 9% 6%

18 Reliability Histories for Individual Circuits Serving San Gabriel - 4 of 8 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 HAMPTON(4.16KV) - Customers: rd Party Equipment Failure 81% 50% % 92% 100% Operation % 2% Other % 49% 50% 12% 8% Vegetation/Animal 19% 50% 100% 6% 24% 50% Weather/Fire/Earthquake % 25% HIDALGO(4.16KV) - Customers: rd Party % 94% % 91% - Equipment Failure 85% 50% % 100% 100% Operation % 1% % 100% % 5% - Other % 50% 50% Vegetation/Animal 15% 50% 100% 7% 25% 50% Weather/Fire/Earthquake % 25% % 4% % 4% - HONOR(16KV) - Customers: 2, rd Party Equipment Failure % 4% % 3% - Operation % 2% - 95% 70% % 0% % 0% - Other % 5% 30% 100% 100% 100% 100% % 44% 16% 80% Vegetation/Animal % % 96% 100% % 81% 20% Weather/Fire/Earthquake % 98% LA PRESA(4.16KV) - Customers: rd Party % 49% 22% Equipment Failure % 0% Operation 100% 100% - 100% 100% 50% 0% 1% Other % % 11% 50% 26% Vegetation/Animal %

19 Reliability Histories for Individual Circuits Serving San Gabriel - 5 of 8 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 LAS TUNAS(4.16KV) - Customers: rd Party % % % 100% 100% % 76% 100% Equipment Failure % 100% - 23% 24% - Operation % 100% Other % MYDA(4.16KV) - Customers: rd Party Equipment Failure Operation % 100% 100% Other NADINE(4.16KV) - Customers: rd Party 100% 100% % % Equipment Failure % 100% % % % Operation % % 100% - 100% 100% - Other % Vegetation/Animal % OLNEY(16KV) - Customers: 1, rd Party 66% 29% 100% 76% 35% 14% % 1% 5% % % 5% 100% Equipment Failure % 65% - 100% 100% 33% % 100% % 0% - Operation 16% 12% Other 18% 59% % % 95% % 94% - Vegetation/Animal % %

20 Reliability Histories for Individual Circuits Serving San Gabriel - 6 of 8 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 PALJAY(16KV) - Customers: 1, rd Party 94% 99% - 100% 100% Equipment Failure % 100% % 14% - Operation 6% 1% % 100% % 86% - Other % % % PUTNEY(4.16KV) - Customers: rd Party % 99% 50% Equipment Failure 100% 100% 100% % 67% 33% Operation % 1% - 16% 33% % 100% % 100% - Other % % ROANOKE(4.16KV) - Customers: rd Party Equipment Failure 81% 50% % 99% 51% Operation % 1% 49% Other % 40% 50% Vegetation/Animal 19% 50% 100% 5% 20% 50% Weather/Fire/Earthquake % 40% % 100% % 100% - RURAL(4.16KV) - Customers: 1, rd Party 90% 98% 50% 5% 2% % Equipment Failure 10% 2% 50% 21% 1% - 60% 2% Operation % 40% 98% Other % % 100% 100% % % 100% 100% Weather/Fire/Earthquake % 96%

21 Reliability Histories for Individual Circuits Serving San Gabriel - 7 of 8 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 SARAH(4.16KV) - Customers: rd Party % % Equipment Failure Operation 0% 10% % % 49% % 49% - Other 100% 90% 67% Weather/Fire/Earthquake % 51% % 51% - SAXON(4.16KV) - Customers: rd Party 44% 38% 100% 95% 94% % % Equipment Failure 38% 37% % 100% 100% 100% 100% % 58% - Operation 17% 25% - 5% 6% % 100% % 43% - Other % % % SEGOVIA(16KV) - Customers: 1, rd Party Equipment Failure 69% 37% 100% % 98% 47% Operation 4% 1% - 87% 83% % 100% - 100% 100% - Other 27% 63% % 2% Vegetation/Animal % 17% % % % SUNNYSLOPE(4.16KV) - Customers: rd Party % Equipment Failure 0% 0% - 23% 20% Operation 73% 98% 34% 77% 80% Other 27% 2% 66% %

22 Reliability Histories for Individual Circuits Serving San Gabriel - 8 of 8 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 TELSTAR(16KV) - Customers: 2, rd Party 54% 91% 31% 10% 26% 22% Equipment Failure 45% 8% 69% 11% 39% - 1% 0% % 32% % 29% - Operation 2% 1% - 1% 8% - 98% 99% % 34% - 100% 100% - 62% 41% - Other % 33% % 30% - Vegetation/Animal % 0% - 0% 0% 100% Weather/Fire/Earthquake % 26% 78% WILLARD(16KV) - Customers: 2, rd Party 5% 22% % % % Equipment Failure 95% 78% 36% 66% 79% - 20% 4% 67% % % Operation % 0% % 100% % 100% - Other % 3% 55% 73% 14% % % % Vegetation/Animal % 18% 18% 45% 6% 82% 33% Weather/Fire/Earthquake % % 22