Circuit Reliability Review

Transcription

1 Circuit Reliability Review La Puente 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 COVINA District CityList1 AVOCADO HEIGHTS AZUSA CHARTER OAK CITRUS CLAREMONT COVINA DIAMOND BAR GLENDORA HACIENDA HEIGHTS INDUSTRY LA PUENTE LA VERNE POMONA ROWLAND HEIGHTS SAN DIMAS SOUTH SAN JOSE HILLS VALINDA VINCENT WALNUT WEST COVINA WEST PUENTE VALLEY 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 La Puente CircuitList1 There are 19 circuits that serve La Puente 1 Circuit Type Customers Circuit Type Customers Circuit Type Customers Circuit Type Customers AZORES(12KV) 1, CALYPSO(12KV) 1, CARR(12KV) 1, CORAK(12KV) DUNKIRK(12KV) 2, FOLGER(12KV) GEAR(12KV) 1, LEVEL(12KV) 2, MACHINE(12KV) PANDORA(12KV) PETRI(12KV) 2, RIVERGRADE(12KV) 1, SANDY(12KV) 1, STAFFORD(12KV) 1, TORCHLIGHT(12KV) 1, UNRUH(12KV) 2, VALINDA(12KV) 1, VISE(12KV) 1, THESEUS(12KV) Grand Total 28,693 7

8 Reliability History of Circuits Serving La Puente (No Exclusions) BarChart SAIDI (average minutes of sustained interruptions) La Puente SAIFI (average frequency of sustained interruptions) MAIFI (average frequency of momentary interruptions) SCE SYSTEMWIDE ** 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 La Puente 2017 SAIDIChart Vegetation /Animal 1.2% Other 1.9% 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 Operation 3.6% Equipment Failure 33.7% Weather /Fire /Earthquake 7.6% 3rd Party 52.0% 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 La Puente 2017 SAIFIChart Vegetation /Animal 1.3% 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 Other 5.5% Operation 12.5% Weather /Fire /Earthquake 12.0% Equipment Failure 28.8% 3rd Party 40.0% 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 La Puente Updated through Dec 2017

14 Average Reliability of 19 Circuits Serving La Puente 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 19 Circuits Serving La Puente -- Total Customers: 28, rd Party 39% 43% 14% 53% 36% 27% 20% 18% 16% 62% 27% - 48% 36% 43% 51% 58% 20% 38% 85% 17% 52% 40% 24% Equipment Failure 27% 16% 28% 17% 27% 24% 62% 58% 40% 2% 0% 20% 45% 42% 21% 42% 28% 27% 37% 5% 0% 34% 29% 18% Operation 34% 41% 36% 13% 18% 6% 6% 10% 0% 4% 19% 1% 2% 11% - 5% 11% 4% 25% 10% 16% 4% 12% 5% Other % 15% 9% 16% 0% 3% 21% % 3% 9% 13% 1% 2% 13% - - 3% 2% 5% 13% Vegetation/Animal % 10% 28% 4% 2% 8% % 2% 23% 1% 1% 36% % 1% 1% 35% Weather/Fire/Earthquake - - 7% 10% 14% 32% 54% 49% - 8% 12% 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. 14

15 Reliability Histories for Individual Circuits Serving La Puente - 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 AZORES(12KV) - Customers: 1, CircuitHistory rd Party 63% 98% - 81% 56% 60% 14% 47% 0% % 71% 100% - 50% 92% 70% 67% Equipment Failure 37% 2% - 1% 0% - 86% 53% 42% % 100% 6% 2% - Operation % 44% - 0% 0% 2% 29% % 2% 29% 33% Other - 20% % Vegetation/Animal - 20% - - Weather/Fire/Earthquake CALYPSO(12KV) - Customers: 1, rd Party 13% 22% % 98% 50% % 100% 49% 47% 64% 40% Equipment Failure 71% 10% - 17% 7% 50% 41% 12% % 100% 10% 0% - Operation 16% 69% 47% 83% 93% - 59% 88% - 5% 10% - 10% 2% % 4% - Other % % % % % Vegetation/Animal % - 51% % Weather/Fire/Earthquake - 95% 90% % 32% - CARR(12KV) - Customers: 1, rd Party 16% 9% 100% 85% 48% - 98% 94% - 40% 77% - Equipment Failure 21% 1% - 5% 48% - 9% 0% 100% 100% - 100% 100% 59% 18% - Operation 63% 91% - 0% 1% - 24% 8% - - 2% 6% - 1% 5% - Other % 3% - 16% 83% Vegetation/Animal - 100% - - Weather/Fire/Earthquake % 8% 100% CORAK(12KV) - Customers: rd Party 55% 82% 100% 100% 50% % 100% 79% 50% - Equipment Failure 16% 2% 50% 89% 62% % 100% 100% % 50% 41% Operation 29% 15% 50% 11% 38% Other 50% Vegetation/Animal - 100% % % Weather/Fire/Earthquake 15

16 Reliability Histories for Individual Circuits Serving La Puente - 2 of 5 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 DUNKIRK(12KV) - Customers: 2, rd Party - - 8% 0% 50% % 100% 100% % 74% 100% Equipment Failure 7% 2% - 100% 96% - 0% 0% 50% % 79% 20% 12% - Operation 93% 98% - 0% 4% - 91% 100% % 21% 1% 3% - Other Vegetation/Animal - 100% - - Weather/Fire/Earthquake - 100% 100% % 11% - FOLGER(12KV) - Customers: rd Party - 33% % 96% % 96% - Equipment Failure % 2% - 18% 6% 100% % 4% % 4% - Operation 100% 100% - 79% 43% 33% 22% 4% Other Vegetation/Animal % 55% 33% 1% 0% 100% % Weather/Fire/Earthquake % 90% GEAR(12KV) - Customers: 1, rd Party % 99% 100% 100% % 100% - Equipment Failure 97% 96% 100% % 1% Operation 3% 4% - - Other % 100% Vegetation/Animal Weather/Fire/Earthquake LEVEL(12KV) - Customers: 2, rd Party 25% 16% 95% 97% 100% 100% 100% % 90% - Equipment Failure 1% 0% 100% 49% 46% - 4% 1% % 21% 2% 1% - Operation 74% 84% - 51% 54% - 1% 1% Other % 79% 1% 4% - Vegetation/Animal 100% 100% 100% - - 3% 5% 100% Weather/Fire/Earthquake 16

17 Reliability Histories for Individual Circuits Serving La Puente - 3 of 5 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 MACHINE(12KV) - Customers: rd Party 35% 53% - 70% 98% 38% % 5% % 5% - Equipment Failure 65% 47% - 1% 0% 62% - - Operation % 2% Other 100% % Vegetation/Animal % 100% 100% Weather/Fire/Earthquake - 90% 95% % 95% - PANDORA(12KV) - Customers: rd Party 100% 100% 100% - 12% 13% % 13% - Equipment Failure % 100% 67% % 87% 100% % % 85% 66% Operation - - 0% 0% % 100% 50% % 2% 34% Other Vegetation/Animal 33% Weather/Fire/Earthquake PETRI(12KV) - Customers: 2, rd Party 64% 97% % 54% 71% 12% 10% 28% % 45% 27% Equipment Failure 29% 2% % 100% 100% 100% % 8% 29% 81% 52% 17% % 12% 14% Operation 8% 1% - 34% 56% 21% 15% 1% 4% 35% - 4% 23% 5% 32% 0% Other % 44% 50% - - 1% 3% % 2% - Vegetation/Animal % 15% 55% % 1% 2% 43% Weather/Fire/Earthquake - 79% 85% 99% - 8% 7% 15% RIVERGRADE(12KV) - Customers: 1, rd Party % 98% 99% 82% 54% 50% Equipment Failure % 23% 100% 7% 5% Operation % 77% - 0% 16% - 100% 100% 2% 1% 18% 46% - Other % - Vegetation/Animal % 79% 100% % Weather/Fire/Earthquake 17

18 Reliability Histories for Individual Circuits Serving La Puente - 4 of 5 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 SANDY(12KV) - Customers: 1, rd Party 100% 100% - 16% 29% - 35% 37% 100% Equipment Failure - 100% - - 4% 1% % 1% - Operation % 71% - 3% 1% Other Vegetation/Animal 96% 99% % % 96% 99% 100% Weather/Fire/Earthquake % 62% STAFFORD(12KV) - Customers: 1, rd Party % 88% 66% - - Equipment Failure 51% 36% - 28% 5% - 90% 91% % 100% 100% 100% % 88% 100% Operation 49% 64% - 10% 6% - 6% 6% 100% 100% 100% 100% 100% - 100% 100% - 28% 12% - Other - - 3% 2% Vegetation/Animal - 34% - - Weather/Fire/Earthquake THESEUS(12KV) - Customers: rd Party Equipment Failure 96% 98% - 100% 100% - 97% 50% 50% 50% - 25% Operation 4% 2% 0% 1% - 50% - 25% Other - 100% % 100% 100% % 100% 50% Vegetation/Animal - - 3% 49% 50% Weather/Fire/Earthquake TORCHLIGHT(12KV) - Customers: 1, rd Party 95% 79% - - Equipment Failure 2% 1% - 66% 33% - 74% 75% - 100% 100% - 99% 96% - 100% 100% 100% 98% - Operation 3% 20% 100% 34% 67% - 1% 1% 1% 4% % 2% - Other Vegetation/Animal - 100% % % Weather/Fire/Earthquake % 25% 100%

19 Reliability Histories for Individual Circuits Serving La Puente - 5 of 5 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 UNRUH(12KV) - Customers: 2, rd Party % 3% 31% - 100% 100% 100% % 10% 28% Equipment Failure 49% 15% - 2% 0% 31% 76% 94% 21% % 100% 100% % 63% 19% Operation 51% 85% - 39% 18% 31% 12% 5% Other % 13% Vegetation/Animal % 66% 8% % % Weather/Fire/Earthquake % 1% 79% 100% 100% 100% - 5% 27% 12% VALINDA(12KV) - Customers: 1, rd Party Equipment Failure 100% 100% - 100% 100% - 72% 54% 66% 51% 49% 97% 75% 49% 98% 64% 100% 70% 55% 49% Operation 0% 0% 28% 46% 0% 0% - 3% 25% - 2% 36% - 1% 6% - Other 34% 48% 51% % % 36% 51% Vegetation/Animal - 100% - - Weather/Fire/Earthquake - 100% 100% % 2% - VISE(12KV) - Customers: 1, rd Party 86% 62% 100% % 47% 33% Equipment Failure 51% 14% - 93% 98% 100% 100% 100% 100% 100% 100% - - 7% 2% - Operation 49% 86% - 7% 2% % 38% 100% 100% 100% 46% 51% 33% Other % % Vegetation/Animal Weather/Fire/Earthquake