Circuit Reliability Review

Transcription

1 Circuit Reliability Review El Segundo 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 El Segundo CircuitList1 There are 21 circuits that serve El Segundo 1 Circuit Type Customers Circuit Type Customers Circuit Type Customers Circuit Type Customers ARIZONA(4.16KV) 1, BALLONA(16KV) BARRACUDA(16KV) BUNGALOW(16KV) BUTANE(16KV) 4, CHEMICAL(16KV) COMPUTER(16KV) CONTINENT(16KV) GEARLINE(16KV) INTERSTATE(16KV) JUDAH(4.16KV) KATHLEEN(16KV) KELVINATOR(16KV) 1, LIBERATOR(16KV) MINNOW(16KV) NEVADA(4.16KV) 1, PENGUIN(16KV) SALMON(16KV) 3, SANDRA(16KV) 4, SEABASS(16KV) WHITING(16KV) Grand Total 19,472 7

8 Reliability History of Circuits Serving El Segundo (No Exclusions) BarChart SAIDI (average minutes of sustained interruptions) El Segundo 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 El Segundo 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 7.7% Operation 3.4% Other 6.7% Weather /Fire /Earthquake 25.3% 3rd Party 21.8% Equipment Failure 35.1% 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 El Segundo 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 21.8% Other 6.5% Weather /Fire /Earthquake 12.6% 3rd Party 15.0% Equipment Failure 40.6% 3rd Party Equipment Failure Operation Other Vegetation /Animal Weather /Fire /Earthquake Operation 3.6% 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 El Segundo Updated through Dec 2017

14 Average Reliability of 21 Circuits Serving El Segundo 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 21 Circuits Serving El Segundo -- Total Customers: 19, rd Party 55% 17% 7% 4% 2% - 9% 19% 23% % 43% 32% 6% % % 15% 14% Equipment Failure 13% 17% 32% 48% 52% 18% 66% 45% 18% 18% 57% 6% 53% 64% 49% 94% 85% - 7% 9% 3% 35% 41% 15% Operation 3% 2% 1% 4% 1% 3% 1% 1% - 11% 7% - 3% 4% - 6% 15% 1% 2% 2% - 3% 4% 0% Other 4% 31% 15% 36% 35% 9% 1% 3% 27% 70% 36% 40% % % 2% 8% - 7% 7% 39% Vegetation/Animal 24% 30% 41% 8% 10% 70% 10% 18% 32% % 0% 0% % 20% 51% 71% 8% 22% 28% Weather/Fire/Earthquake 1% 3% 4% 1% 0% 1% 13% 14% 0% % 30% 26% 25% 13% 5% 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 El Segundo - 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 ARIZONA(4.16KV) - Customers: 1, CircuitHistory rd Party % Equipment Failure 82% 64% % 100% Operation 18% 36% - 7% 1% Other % 99% Vegetation/Animal BALLONA(16KV) - Customers: rd Party % Equipment Failure 100% 100% 54% 5% 5% 36% % 100% - 100% 100% % 99% - Operation % 100% - 1% 1% - Other Vegetation/Animal % % Weather/Fire/Earthquake % 95% 64% BARRACUDA(16KV) - Customers: rd Party % 51% Equipment Failure % 0% % 68% 100% 10% 52% 100% Operation 100% 100% 50% % 100% % 32% - 90% 48% - Other % Vegetation/Animal % 48% BUNGALOW(16KV) - Customers: Equipment Failure % % Operation 100% 100% Other Vegetation/Animal % % % 15

16 Reliability Histories for Individual Circuits Serving El Segundo - 2 of 6 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 BUTANE(16KV) - Customers: 4, rd Party 94% 89% % 0% Equipment Failure 6% 10% - 71% 59% 5% 89% 93% 34% 2% 1% - 96% 92% 100% % 90% 33% Operation 0% 1% - 1% 0% - 0% 0% - 98% 99% - 2% 7% - 100% 100% - 100% 100% - 7% 9% - Other % 28% 41% % % Vegetation/Animal % % 11% 7% 66% % 1% 1% % 1% 33% CHEMICAL(16KV) - Customers: Equipment Failure 94% 79% - 26% 19% Operation 6% 21% Other % 81% Vegetation/Animal COMPUTER(16KV) - Customers: Equipment Failure Operation Other Vegetation/Animal % % Weather/Fire/Earthquake % 100% 100% CONTINENT(16KV) - Customers: Equipment Failure % 46% - 100% 100% Operation Other % 54% Vegetation/Animal

17 Reliability Histories for Individual Circuits Serving El Segundo - 3 of 6 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 GEARLINE(16KV) - Customers: rd Party 13% 2% 32% Equipment Failure 87% 98% 32% Operation Other % 86% 97% Vegetation/Animal % % 3% 100% INTERSTATE(16KV) - Customers: rd Party % 1% 50% Equipment Failure 2% 0% % 1% Operation % 11% Other % 89% 100% Vegetation/Animal 98% 100% 100% % 99% 50% JUDAH(4.16KV) - Customers: Equipment Failure % 100% - 100% 100% 100% % 100% % 100% 100% Operation % 100% Other Vegetation/Animal 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%

18 Reliability Histories for Individual Circuits Serving El Segundo - 4 of 6 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 KELVINATOR(16KV) - Customers: 1, Equipment Failure 81% 92% 50% 25% 29% 0% 100% 100% 100% % 100% - 100% 100% - 100% 100% - 99% 99% - Operation 19% 8% - 6% 1% % 100% % 1% - Other % 0% 0% % % Vegetation/Animal % 70% 30% % % % Weather/Fire/Earthquake % LIBERATOR(16KV) - Customers: Equipment Failure % 6% - 93% 50% % 100% % 67% - Operation % 2% - 7% 50% % 100% - 100% 100% - 36% 33% - Other Vegetation/Animal % 92% % % MINNOW(16KV) - Customers: Equipment Failure % 61% % 100% % 99% - Operation % 19% - 100% 100% % 1% - Other % 0% Vegetation/Animal % 20% NEVADA(4.16KV) - Customers: 1, rd Party % % 98% Equipment Failure 100% 100% % 1% Operation % 1% - 2% 1% % 100% % 16% - Other % 99% % 100% % 100% - 83% 84% - Vegetation/Animal

19 Reliability Histories for Individual Circuits Serving El Segundo - 5 of 6 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 PENGUIN(16KV) - Customers: 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% 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% SANDRA(16KV) - Customers: 4, rd Party % 98% 34% Equipment Failure 9% 6% 54% 60% 57% 50% % 4% - 18% 4% - Operation 6% 6% - 18% 28% - 14% 2% % 1% - 0% 1% - Other % % % Vegetation/Animal 85% 88% 46% 22% 15% 50% % 95% 100% 81% 95% 41% SEABASS(16KV) - Customers: Equipment Failure % 100% 100% 99% 68% 50% Operation Other Vegetation/Animal % 32% 50%

20 Reliability Histories for Individual Circuits Serving El Segundo - 6 of 6 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 WHITING(16KV) - Customers: Equipment Failure % 49% % 100% % 100% - Operation Other % 51% Vegetation/Animal