Circuit Reliability Review

Transcription

1 Circuit Reliability Review Rosemead 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 MONTEBELLO District CityList1 ALHAMBRA EAST LOS ANGELES EL MONTE LOS ANGELES MONTEBELLO MONTEREY PARK NORTH EL MONTE PICO RIVERA ROSEMEAD SOUTH EL MONTE SOUTH SAN GABRIEL 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 Rosemead CircuitList1 There are 29 circuits that serve Rosemead 1 Circuit Type Customers Circuit Type Customers Circuit Type Customers Circuit Type Customers ARBOLES(16KV) 2, BARTLETT(4.16KV) BENTEL(4.16KV) BILTON(16KV) 3, BLEEKER(16KV) BROOKLINE(16KV) 1, CHANGE(16KV) 1, CLAYTON(16KV) 3, EDMOND(4.16KV) FORBID(16KV) 1, GERONA(16KV) 2, GLADYS(16KV) 3, HIGHCLIFF(16KV) 1, HONOR(16KV) 2, KEIM(4.16KV) LODESTAR(16KV) MUSCATEL(4.16KV) OLNEY(16KV) 1, OPPORTUNITY(16KV) 1, PALJAY(16KV) 1, PECK(16KV) PICADOR(16KV) 4, RURAL(4.16KV) 1, SARAH(4.16KV) SAXON(4.16KV) SEGOVIA(16KV) 1, TAMORA(16KV) TELSTAR(16KV) 2, WHITMORE(16KV) Grand Total 46,168 7

8 Reliability History of Circuits Serving Rosemead (No Exclusions) BarChart SAIDI (average minutes of sustained interruptions) Rosemead 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 Rosemead 2017 SAIDIChart Vegetation /Animal 1.5% Contributions to SAIDI by Outage Cause 3rd Party 4.8% 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 2.8% Other 11.9% Weather /Fire /Earthquake 7.4% Equipment Failure 71.5% 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 Rosemead 2017 SAIFIChart Vegetation /Animal 5.2% Weather /Fire /Earthquake 3.4% 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 Operation 7.3% Other 4.2% Equipment Failure 69.2% 3rd Party 10.8% 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 Rosemead Updated through Dec 2017

14 Average Reliability of 29 Circuits Serving Rosemead 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 29 Circuits Serving Rosemead -- Total Customers: 46, rd Party 16% 25% 24% 30% 31% 13% 14% 17% 13% 4% 8% % 15% 26% 18% - - 4% 5% 11% 19% Equipment Failure 51% 46% 34% 25% 36% 12% 43% 33% 21% 59% 73% 16% 96% 91% 19% 72% 55% 43% 75% 41% 6% 71% 69% 22% Operation 4% 6% 5% 6% 7% 3% 29% 30% 3% 2% 5% - 0% 0% 13% 4% 1% - 23% 59% - 3% 7% 6% Other 14% 10% 13% 9% 11% 40% 3% 3% 28% 22% 10% 63% 0% 0% 33% 0% 0% 2% 1% 1% 54% 12% 4% 33% Vegetation/Animal 1% 0% 13% 1% 2% 27% 7% 9% 34% % 0% 5% 9% 18% 35% % 1% 5% 16% Weather/Fire/Earthquake 15% 13% 11% 29% 13% 5% 4% 7% - 12% 4% 21% 4% 9% % % 3% 3% 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 Rosemead - 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 ARBOLES(16KV) - Customers: 2, CircuitHistory rd Party 1% 0% 17% 51% 86% - 42% 87% 39% % % Equipment Failure 12% 50% - 46% 10% - 54% 9% - 89% 63% - 100% 100% 49% % 28% - 94% 94% 49% Operation 0% 0% - 4% 3% 100% 4% 4% - 11% 37% % 100% - 39% 58% - 5% 5% - Other % % % 13% - 0% 1% - Vegetation/Animal % Weather/Fire/Earthquake 87% 50% 33% BARTLETT(4.16KV) - Customers: rd Party 51% 19% 100% % Equipment Failure Operation 49% 81% % 100% % 100% % 100% - Other % % % Vegetation/Animal BENTEL(4.16KV) - Customers: rd Party 51% 50% 100% % Equipment Failure 14% 4% % 100% % 100% - Operation 35% 46% - 100% 100% 13% 100% 100% Other Vegetation/Animal % 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%

16 Reliability Histories for Individual Circuits Serving Rosemead - 2 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 BLEEKER(16KV) - Customers: rd Party Equipment Failure % 100% 100% % 100% - Operation % 100% Other % % % Vegetation/Animal BROOKLINE(16KV) - Customers: 1, rd Party 4% 1% 17% 43% 17% - 2% 0% Equipment Failure 47% 60% 17% 31% 57% 47% 59% 11% 47% 99% 100% - 98% 99% - 100% 100% 100% 100% 100% 26% 99% 100% 38% Operation 1% 0% - 0% 0% - 17% 83% % 0% - 0% 0% - 0% 0% - Other % 15% 17% 39% 18% 3% - 1% 0% - 1% 1% 100% % 1% 0% 41% Vegetation/Animal % 0% 0% - 2% 0% 53% % % Weather/Fire/Earthquake 48% 39% 17% 10% 9% 13% 2% 2% % 0% % 0% - CHANGE(16KV) - Customers: 1, rd Party % 49% % 44% - Equipment Failure % 0% % 45% 51% % 45% - Operation 100% 100% - 36% 60% - 36% 46% - 0% 0% % 0% - Other % 38% 62% % % % Vegetation/Animal % 1% 38% 64% 54% 41% % 100% 100% % 10% 43% CLAYTON(16KV) - Customers: 3, rd Party % 99% 37% % 26% 34% Equipment Failure 12% 17% 33% 39% 50% 100% 72% 24% 45% 100% 100% 100% 100% 100% % 100% - 96% 73% 10% Operation 0% 0% - 1% 0% - 14% 73% 20% 0% 0% % 0% - Other % 50% - 11% 2% 16% Vegetation/Animal % 1% 20% % 1% 63% % 0% 56% Weather/Fire/Earthquake 88% 83% 67%

17 Reliability Histories for Individual Circuits Serving Rosemead - 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 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% FORBID(16KV) - Customers: 1, rd Party 42% 24% 67% 92% 69% 27% 0% 0% 33% Equipment Failure 58% 75% - 4% 18% 28% 83% 98% 67% 100% 100% - 100% 100% - 100% 100% % 100% - Operation 0% 0% % 0% 0% % 0% 50% Other % 16% 2% % % % Vegetation/Animal % 4% 13% 17% 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% GLADYS(16KV) - Customers: 3, rd Party 1% 1% Equipment Failure 97% 97% 100% 100% 100% - 90% 74% Operation 3% 3% - 0% 0% - 3% 3% % 11% % 10% - Other % 7% 23% 100% % % Vegetation/Animal % % 89% 100% % 81% 31% Weather/Fire/Earthquake % 100% 100% % 10% 34% 17

18 Reliability Histories for Individual Circuits Serving Rosemead - 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 HIGHCLIFF(16KV) - Customers: 1, rd Party 36% 66% 28% Equipment Failure 45% 31% 43% 43% 3% - 95% 27% % 100% - 100% 100% - 91% 83% - 97% 98% - Operation 0% 0% - 9% 1% - 0% 1% % 17% - 2% 2% - Other 5% 2% % % % 0% - 0% 0% 100% Vegetation/Animal 13% 1% 28% 48% 96% 59% 4% 72% 100% 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% KEIM(4.16KV) - Customers: rd Party % Equipment Failure % 100% Operation % % 100% % 100% - Other % % % % Vegetation/Animal LODESTAR(16KV) - Customers: rd Party Equipment Failure % Operation Other % % % Vegetation/Animal

19 Reliability Histories for Individual Circuits Serving Rosemead - 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 MUSCATEL(4.16KV) - Customers: rd Party % Equipment Failure % % 100% % 100% - Operation 100% 100% Other % % % % % % Vegetation/Animal % Weather/Fire/Earthquake % % 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 % % OPPORTUNITY(16KV) - Customers: 1, rd Party % Equipment Failure % 100% % 100% % 100% - Operation Other % % % % Vegetation/Animal % PALJAY(16KV) - Customers: 1, rd Party 94% 99% - 100% 100% Equipment Failure % 100% % 14% - Operation 6% 1% % 100% % 86% - Other % % % Vegetation/Animal

20 Reliability Histories for Individual Circuits Serving Rosemead - 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 PECK(16KV) - Customers: rd Party % 85% % % Equipment Failure % 99% 43% 100% 100% - 77% 60% % 68% - Operation % 15% 50% Other % % % Vegetation/Animal % 1% 57% Weather/Fire/Earthquake % 40% % 32% - PICADOR(16KV) - Customers: 4, rd Party % 92% 100% % % Equipment Failure 99% 91% - 6% 3% - 7% 3% - 100% 100% 100% 64% 67% - 99% 98% 100% % 74% 48% Operation 1% 9% 100% 15% 5% - 35% 45% % 100% - 2% 25% - Other Vegetation/Animal % 52% 100% % 33% - 1% 2% % 1% 1% 17% 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% Vegetation/Animal Weather/Fire/Earthquake % 96% SARAH(4.16KV) - Customers: rd Party % % Equipment Failure Operation 0% 10% % % 49% % 49% - Other 100% 90% 67% Vegetation/Animal Weather/Fire/Earthquake % 51% % 51% - 20

21 Reliability Histories for Individual Circuits Serving Rosemead - 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 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 % % % Vegetation/Animal 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% % % % TAMORA(16KV) - Customers: rd Party % 50% Equipment Failure 61% 2% - 20% 3% - 0% 0% 100% 68% 66% % % 66% 68% Operation 39% 98% % 0% - 32% 34% % 34% - Other % 80% 97% 100% % % Vegetation/Animal % 50% 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%

22 Reliability Histories for Individual Circuits Serving Rosemead - 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 WHITMORE(16KV) - Customers: rd Party 6% 44% 41% 92% 96% 100% Equipment Failure % 2% % 100% % 100% - Operation 2% 44% - 2% 2% - 100% 100% Other Vegetation/Animal % Weather/Fire/Earthquake 92% 11% 59%