Circuit Reliability Review
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1 Circuit Reliability Review Laguna Beach 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 SADDLEBACK District CityList1 ALISO VIEJO COTO DE CAZA IRVINE LAGUNA BEACH LAGUNA HILLS LAGUNA NIGUEL LAGUNA WOODS LAKE FOREST LAS FLORES MISSION VIEJO RANCHO SANTA MARGARITA 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 Laguna Beach CircuitList1 There are 15 circuits that serve Laguna Beach 1 Circuit Type Customers Circuit Type Customers Circuit Type Customers Circuit Type Customers ACRES(12KV) 2, AGATE(12KV) 4, AJARD(12KV) 1, ANTE(12KV) 2, ARTIST(12KV) 2, CORTESE(12KV) HIGO(12KV) 1, LECHE(12KV) 1, MACHO(12KV) 2, MARACA(12KV) 2, RIMROCK(12KV) 2, RUBIN(12KV) 1, SIESTA(12KV) 1, TRIPAS(12KV) 2, VACA(12KV) 2, Grand Total 32,575 7
8 Reliability History of Circuits Serving Laguna Beach (No Exclusions) BarChart SAIDI (average minutes of sustained interruptions) Laguna Beach 0.0 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 Laguna Beach 2017 SAIDIChart 3rd Party 1.5% Contributions to SAIDI by Outage Cause Vegetation /Animal 0.0% 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 Weather /Fire /Earthquake 24.1% Other 29.6% Equipment Failure 40.2% 3rd Party Equipment Failure Operation Other Vegetation /Animal Operation 4.6% 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 Laguna Beach 2017 SAIFIChart 3rd Party 5.0% Contributions to SAIFI by Outage Cause Vegetation /Animal 0.0% 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 21.5% Weather /Fire /Earthquake 21.8% Equipment Failure 48.0% 3rd Party Equipment Failure Operation Other Vegetation /Animal Weather /Fire /Earthquake Operation 3.7% 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 Laguna Beach Updated through Dec 2017
14 Average Reliability of 15 Circuits Serving Laguna Beach 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 15 Circuits Serving Laguna Beach -- Total Customers: 32, rd Party % 0% % - 100% % 33% - 1% 5% 5% Equipment Failure 86% 82% 32% 46% 59% 29% 71% 61% 39% 16% 30% 7% 99% 99% - 71% 66% 85% 67% 48% 70% 40% 48% 31% Operation 6% 4% 0% 50% 40% 42% 3% 2% - 0% 0% - 1% 1% - 5% 3% - 24% 19% 16% 5% 4% 3% Other 6% 13% 35% % 10% 34% 50% 39% 66% % 2% 4% % 30% 21% 43% Vegetation/Animal 1% 1% 33% - Weather/Fire/Earthquake % 0% 28% 18% 27% 17% 34% 32% 27% % 29% 12% % 22% 18% 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 Laguna Beach - 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 ACRES(12KV) - Customers: 2, CircuitHistory rd Party Equipment Failure % 46% 50% 60% 11% - 14% 33% 25% 100% 100% % 28% 23% Operation 100% 100% - 69% 53% 0% 0% - - 0% 0% - Other 49% 85% 67% 75% - 75% 55% 69% Vegetation/Animal Weather/Fire/Earthquake % 1% 50% 40% 89% 51% % 100% 100% % 17% 8% AGATE(12KV) - Customers: 4, rd Party Equipment Failure 98% 99% 100% 100% 100% - 49% 40% 35% % 100% - 99% 96% 91% % 37% 51% 45% Operation 2% 1% - 1% 4% 0% 1% - Other - - 2% 8% 65% 5% 4% - - 9% % 2% 2% Vegetation/Animal Weather/Fire/Earthquake % 52% - 95% 96% 100% - 60% 46% 54% AJARD(12KV) - Customers: 1, rd Party Equipment Failure % 95% 100% 100% 100% 100% 100% 79% 39% - Operation % 100% 100% 7% 5% 100% 100% 100% 100% - 21% 61% - Other Vegetation/Animal Weather/Fire/Earthquake ANTE(12KV) - Customers: 2, rd Party Equipment Failure 76% 57% - 100% 100% % 100% - 96% 83% 100% 96% 83% 100% Operation 1% 2% 8% % 100% - - 4% 17% - 4% 17% - Other 23% 41% 92% - Vegetation/Animal Weather/Fire/Earthquake 15
16 Reliability Histories for Individual Circuits Serving Laguna Beach - 2 of 4 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 ARTIST(12KV) - Customers: 2, rd Party % 39% % Equipment Failure % 38% - 94% 95% % 100% 100% % 96% 100% Operation 100% 100% - 1% 23% - 6% 5% % 100% - 5% 4% - Other Vegetation/Animal Weather/Fire/Earthquake CORTESE(12KV) - Customers: rd Party Equipment Failure Operation 100% 100% - 100% 100% % 100% 100% 100% - Other Vegetation/Animal Weather/Fire/Earthquake HIGO(12KV) - Customers: 1, rd Party Equipment Failure % 100% Operation Other Vegetation/Animal Weather/Fire/Earthquake LECHE(12KV) - Customers: 1, rd Party % 94% - 65% 94% - Equipment Failure 100% 100% 35% 6% - 35% 6% - Operation 0% 0% - - 0% - - 0% Other % - 100% % Vegetation/Animal Weather/Fire/Earthquake 16
17 Reliability Histories for Individual Circuits Serving Laguna Beach - 3 of 4 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 MACHO(12KV) - Customers: 2, rd Party Equipment Failure 96% 82% - 14% 9% - 78% 79% 87% 100% 100% % 100% - Operation 4% 18% - 86% 91% 100% 1% 3% % 100% 2% 0% - Other % 18% 13% Vegetation/Animal Weather/Fire/Earthquake MARACA(12KV) - Customers: 2, rd Party Equipment Failure % 100% - 97% 97% - 100% 100% % 99% - Operation - - 3% 3% % 100% - 0% 1% - Other Vegetation/Animal Weather/Fire/Earthquake RIMROCK(12KV) - Customers: 2, rd Party % 100% Equipment Failure 46% 61% - 91% 93% - 45% 30% % 100% - 100% 100% - Operation 54% 39% - 9% 7% - 55% 70% Other Vegetation/Animal Weather/Fire/Earthquake RUBIN(12KV) - Customers: 1, rd Party Equipment Failure 42% 14% - 9% 26% % 100% - 23% 33% 100% % 12% 12% Operation 16% 42% - 91% 74% % 33% 14% 4% - Other - 100% 100% 100% % 33% 61% 84% 88% Vegetation/Animal 42% 44% 100% - Weather/Fire/Earthquake 17
18 Reliability Histories for Individual Circuits Serving Laguna Beach - 4 of 4 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 SIESTA(12KV) - Customers: 1, rd Party Equipment Failure % 21% Operation 100% 100% - 44% 79% - 100% 100% 100% 100% 100% 100% Other Vegetation/Animal Weather/Fire/Earthquake TRIPAS(12KV) - Customers: 2, rd Party Equipment Failure 84% 80% - - Operation 16% 20% - 100% 100% - 100% 100% Other Vegetation/Animal Weather/Fire/Earthquake VACA(12KV) - Customers: 2,238 3rd Party Equipment Failure Operation Other Vegetation/Animal Weather/Fire/Earthquake
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