Circuit Reliability Review

Transcription

1 Circuit Reliability Review Yucaipa 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 REDLANDS District CityList1 BANNING BEAUMONT BOX SPRINGS MOUNTAIN CALIMESA CHERRY VALLEY COLTON GRAND TERRACE HIGHGROVE HIGHLAND LOMA LINDA MENTONE MUSCOY REDLANDS RIALTO RIVERSIDE YUCAIPA CITY OF SAN BERNARDINO SAN MANUEL BAND OF MISSION INDIANS 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 Yucaipa CircuitList1 There are 18 circuits that serve Yucaipa 1 Circuit Type Customers Circuit Type Customers Circuit Type Customers Circuit Type Customers BEAR VALLEY(33KV) BENCH(12KV) 1, BURNS(12KV) 1, CALIMESA(12KV) CHATTANOOGA(12KV) 1, CONINE(12KV) 1, CROFT(12KV) 1, MEMPHIS(12KV) 1, MESA GRANDE(12KV) 1, NASHVILLE(12KV) 1, OAK GLEN(12KV) 1, PENDLETON(12KV) 1, POULTRY(12KV) 1, ROCKWELL(12KV) 1, SHASTA(12KV) SPARLING(12KV) 1, STONEWOOD(12KV) WILSON CREEK(12KV) 1, Grand Total 23,876 7

8 Reliability History of Circuits Serving Yucaipa (No Exclusions) BarChart SAIDI (average minutes of sustained interruptions) Yucaipa 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 Yucaipa 2017 SAIDIChart Contributions to SAIDI by Outage Cause Vegetation /Animal 1.5% 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 4.2% Other 9.5% Weather /Fire /Earthquake 10.6% Equipment Failure 38.3% 3rd Party 35.9% 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 Yucaipa 2017 SAIFIChart Contributions to SAIFI by Outage Cause Vegetation /Animal 2.6% 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 Other 4.9% Operation 3.8% Weather /Fire /Earthquake 14.3% Equipment Failure 38.4% 3rd Party 35.9% 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 Yucaipa Updated through Dec 2017

14 Average Reliability of 18 Circuits Serving Yucaipa 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 18 Circuits Serving Yucaipa -- Total Customers: 23, rd Party 12% 10% 19% 11% 14% 32% 17% 23% 32% 20% 2% 87% 56% 58% 7% 21% 16% 26% % 36% 14% Equipment Failure 43% 44% 18% 48% 45% 10% 63% 60% 25% 41% 87% - 26% 22% 18% 58% 54% 20% 40% 31% 5% 38% 38% 17% Operation 5% 12% 4% 4% 7% 2% 5% 5% 4% 2% 49% 4% 7% - 5% 7% - 4% 4% 31% Other 13% 16% 34% 4% 13% 33% 1% 2% 27% 28% 8% 10% - - 6% % 56% 62% 95% 9% 5% 17% Vegetation/Animal 4% 9% 11% 1% 1% 10% - - 2% - 20% 5% 8% 7% % 3% 14% Weather/Fire/Earthquake 23% 8% 13% 31% 20% 12% 14% 10% 13% 11% 2% 3% 13% 18% - 12% 15% 22% % 14% 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 Yucaipa - 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 BEAR VALLEY(33KV) - Customers: CircuitHistory rd Party % 48% 64% 50% % 50% - Equipment Failure % 5% 6% - - Operation % 48% Other - 3% % % % Vegetation/Animal - 91% - - Weather/Fire/Earthquake % 100% 51% 36% 50% 25% - 36% 50% 25% BENCH(12KV) - Customers: 1, rd Party 100% % 100% % 67% - Equipment Failure 95% 59% 60% 59% % 100% 9% 3% - Operation 5% 41% 0% 0% 1% 0% 100% - - 1% 0% 100% Other % 100% - 45% 30% - Vegetation/Animal Weather/Fire/Earthquake - 100% 40% 41% BURNS(12KV) - Customers: 1, rd Party 100% Equipment Failure % 97% Operation 67% 67% 6% 3% % 100% 100% 100% 100% 100% Other 33% 33% - - Vegetation/Animal Weather/Fire/Earthquake % 100% CALIMESA(12KV) - Customers: rd Party Equipment Failure % 83% - 100% 100% 100% 100% 50% % 36% 33% Operation % 14% - 0% 0% % 100% 100% - 100% 100% - 30% 64% 33% Other 100% % Vegetation/Animal Weather/Fire/Earthquake % 3% 100%

16 Reliability Histories for Individual Circuits Serving Yucaipa - 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 CHATTANOOGA(12KV) - Customers: 1, rd Party % 14% Equipment Failure % 2% Operation % 86% - 46% 86% Other Vegetation/Animal Weather/Fire/Earthquake % 12% % CONINE(12KV) - Customers: 1, rd Party 33% 47% 100% 100% Equipment Failure 10% 5% - 22% 48% 71% 100% 100% % 100% - 100% 100% - 100% 100% - Operation 1% 1% - 1% 1% - 0% 0% Other - 29% % Vegetation/Animal 56% 47% - - Weather/Fire/Earthquake % 52% CROFT(12KV) - Customers: 1, rd Party 98% 100% % 99% - Equipment Failure % 100% 100% % 1% % 0% - Operation % % 100% - 1% 1% 50% Other - 100% % - 50% Vegetation/Animal Weather/Fire/Earthquake MEMPHIS(12KV) - Customers: 1, rd Party 6% 2% 2% % 66% 75% 28% Equipment Failure 92% 98% 46% 85% 70% 38% 28% 16% 43% 70% 37% - 1% 1% % 13% - Operation 2% 1% - 0% 0% 1% 7% 9% 68% 67% 98% % 45% 98% Other % 14% 30% 31% % 30% 63% % - - 4% 20% 2% Vegetation/Animal Weather/Fire/Earthquake 0% 0% 26% 1% 0% % 32% % 22% - 16

17 Reliability Histories for Individual Circuits Serving Yucaipa - 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 MESA GRANDE(12KV) - Customers: 1, rd Party - - 4% 3% Equipment Failure % 2% - 96% 97% % 100% 100% 100% - Operation % 95% Other 100% 100% % % - 5% Vegetation/Animal Weather/Fire/Earthquake % 98% 50% - - NASHVILLE(12KV) - Customers: 1, rd Party % 62% 100% - - Equipment Failure Operation % 31% - 59% 50% 100% 100% - 100% 100% 100% 100% - Other 100% 100% 100% - Vegetation/Animal % 7% Weather/Fire/Earthquake % 1% - 41% 50% 100% OAK GLEN(12KV) - Customers: 1, rd Party 45% % 85% % 65% - Equipment Failure 5% 6% - 45% 31% 5% 82% 78% - 100% 100% - 11% 15% 100% 64% 11% - 99% 93% - 32% 16% 39% Operation % 34% % 1% 1% 7% - 0% 1% - Other % % 7% 13% 38% Vegetation/Animal % 0% 30% % % 89% 100% % 19% 61% Weather/Fire/Earthquake 95% 94% - 32% 34% - 12% 9% PENDLETON(12KV) - Customers: 1, rd Party % 47% Equipment Failure 56% 54% 58% 51% Operation 44% 46% 4% 1% % 100% Other 100% Vegetation/Animal Weather/Fire/Earthquake 17

18 Reliability Histories for Individual Circuits Serving Yucaipa - 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 POULTRY(12KV) - Customers: 1, rd Party 40% 5% 28% 52% 1% 12% 10% 96% 99% 100% % 88% 55% Equipment Failure 31% 86% 16% % 83% 69% 61% - 1% 0% 14% 7% - Operation 0% 1% - 13% 19% - 1% 3% 31% 39% - 2% 1% 8% 5% - Other % 27% 80% 22% - - Vegetation/Animal % 0% 23% 90% 45% Weather/Fire/Earthquake 29% 9% % 37% 15% 100% ROCKWELL(12KV) - Customers: 1, rd Party % % - - Equipment Failure % 100% - 100% 100% 100% 100% 100% - - 2% 0% - Operation 100% 100% - - Other Vegetation/Animal Weather/Fire/Earthquake 100% 100% - 100% 100% 100% % 100% 100% SHASTA(12KV) - Customers: rd Party % 99% - 92% 97% % % Equipment Failure % 0% - 1% 0% % 100% 100% 100% - Operation Other % % 1% 1% Vegetation/Animal % 1% Weather/Fire/Earthquake - - 7% 3% SPARLING(12KV) - Customers: 1, rd Party 1% 0% 25% 2% 45% 33% 59% 96% 50% Equipment Failure 74% 35% 25% 56% 17% - 41% 4% - 57% 93% 92% 99% 60% % 95% 33% Operation 7% 46% 25% 19% 16% 33% - 0% 0% 0% 0% - Other 18% 19% 25% 18% 16% 33% % 43% 7% % - 100% 23% 4% 45% Vegetation/Animal 0% 0% - 4% 4% Weather/Fire/Earthquake % 1% - - 7% 1% 40% % 0% 22% 18

19 Reliability Histories for Individual Circuits Serving Yucaipa - 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 STONEWOOD(12KV) - Customers: rd Party % % 51% 100% Equipment Failure % 100% - 42% 49% 100% 100% 100% 100% 100% - 88% 85% 100% 98% 99% 100% Operation % 15% - 2% 1% - Other % % - - Vegetation/Animal % % - - Weather/Fire/Earthquake WILSON CREEK(12KV) - Customers: 1, rd Party % 41% 75% 25% 33% Equipment Failure % 50% - 75% 67% Operation Other - 25% - - Vegetation/Animal % % 100% Weather/Fire/Earthquake 100% 100% 48% 3% 9%