Circuit Reliability Review

Circuit Reliability Review Moreno Valley January 2018

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 (2017-19). 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

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

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

Cities in the MENIFEE District CityList1 BOX SPRINGS MOUNTAIN EAST HEMET GOOD HOPE HEMET HOMELAND IDYLLWILD-PINE COVE JUNIPER FLATS LAKEVIEW MARCH AFB MEADOWBROOK MENIFEE MORENO VALLEY MOUNTAIN CENTER NUEVO PERRIS RIVERSIDE SAN JACINTO VALLE VISTA WINCHESTER WOODCREST SOBOBA BAND OF LUISENO INDIANS 5

* 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

Overview of Moreno Valley CircuitList1 There are 39 circuits that serve Moreno Valley 1 Circuit Type Customers Circuit Type Customers Circuit Type Customers Circuit Type Customers ACCENT(12KV) 1,587 RECHE(12KV) 1,853 - - BARBEE(12KV) 1,299 RIVARD(12KV) 786 - - BARRATT(12KV) 1,980 ROWE(12KV) 1,521 - - BASIL(12KV) 1,533 SNYDER(12KV) 2,347 - - BAZOOKA(12KV) 1,062 SPICE(12KV) 1,372 - - BENTON(12KV) 2,317 TRINITY(12KV) 1,451 - - BRUTTE(12KV) 1,769 TURMERIC(12KV) 2,352 - - CLOVE(12KV) 962 WESTBLUFF(12KV) 1,398 - - DILL(12KV) 1,223 ZANTAR(12KV) 1,644 - - DUDA(12KV) 783 - - - EDWIN(12KV) 1,078 - - - ELSWORTH(12KV) 1,894 - - - FANTASTICO(12KV) 1,369 - - - FLAKE(12KV) 2,109 - - - GAMBLE(12KV) 1,729 - - - GINGER(12KV) 945 - - - GRAHAM(12KV) 1,674 - - - HACKLER(12KV) 1,873 - - - HAMMOCK(33KV) 5 - - - HEACOCK(12KV) 2,617 - - - HEERS(12KV) 1,978 - - - HERO(12KV) 1,454 - - - IRONWOOD(33KV) 8 - - - KINGSWAY(12KV) 1,331 - - - LANDMARK(12KV) 791 - - - NANCE(12KV) 1,658 - - - OLIVER(33KV) 12 - - - OUTLAW(12KV) 710 - - - REAGAN(12KV) 1,041 - - - REAKES(12KV) 1,759 - - - Grand Total 55,274 7

Reliability History of Circuits Serving Moreno Valley (No Exclusions) BarChart SAIDI (average minutes of sustained interruptions) 160.0 140.0 120.0 100.0 80.0 60.0 40.0 20.0 0.0 2014 2015 2016 2017 151.6 134.5 139.7 112.1 114.8 83.8 70.1 75.9 Moreno Valley SAIFI (average frequency of sustained interruptions) MAIFI (average frequency of momentary interruptions) 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.0 2.0 1.5 1.0 0.5 0.0 0.8 1.4 1.1 1.1 1.0 0.9 1.5 1.4 1.3 1.4 1.1 1.6 0.8 0.7 1.2 1.8 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

Causes of Repair Outages in Moreno Valley 2017 SAIDIChart Vegetation /Animal 0.1% Contributions to SAIDI by Outage Cause Weather /Fire /Earthquake 0.9% 3rd Party 8.9% 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 33.7% Operation 16.2% Equipment Failure 40.2% 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

Causes of Repair Outages in Moreno Valley 2017 SAIFIChart Vegetation /Animal 0.0% Weather /Fire /Earthquake 5.6% Contributions to SAIFI by Outage Cause 3rd Party 8.6% 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 26.1% Operation 23.6% Equipment Failure 36.0% 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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Back-up Slides Reliability Histories of Circuits Serving Moreno Valley Updated through Dec 2017

Average Reliability of 39 Circuits Serving Moreno Valley CitySummary 2014 2015 2016 1st Qtr 2017 2nd Qtr 2017 3rd Qtr 2017 4th Qtr 2017 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 39 Circuits Serving Moreno Valley -- Total Customers: 55,274 70.1 0.8 1.4 83.8 1.1 1.3 151.6 1.1 1.5 43.2 0.4 0.2 19.0 0.2 0.2 9.9 0.2 0.2 3.7 0.0 0.1 75.9 0.8 0.7 3rd Party 27% 19% 17% 35% 20% 23% 3% 8% 18% 2% 4% 11% 24% 27% 19% 14% 1% 15% - - 16% 9% 9% 15% Equipment Failure 26% 18% 9% 29% 18% 16% 38% 50% 34% 36% 34% 40% 26% 12% 1% 70% 57% 17% 87% 84% 51% 40% 36% 25% Operation 11% 9% 2% 6% 5% 10% 33% 28% 33% 6% 13% 16% 45% 54% 20% 7% 17% 17% 8% 8% 32% 16% 24% 20% Other 22% 42% 65% 19% 44% 49% 2% 4% 14% 56% 49% 32% 4% 6% 40% 2% 1% 16% 5% 8% 0% 34% 26% 24% Vegetation/Animal 0% 0% 0% 0% 0% 0% - - 0% - - - 0% 0% 20% 0% 0% 8% - - - 0% 0% 7% Weather/Fire/Earthquake 14% 12% 6% 11% 13% 3% 24% 10% 1% - - - - - - 7% 24% 27% - - - 1% 6% 8% SCE SYSTEMWIDE 112.1 1.0 1.4 114.8 0.9 1.4 134.5 1.1 1.6 42.6 0.3 0.5 23.6 0.2 0.4 29.2 0.2 0.4 44.3 0.4 0.5 139.7 1.2 1.8 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

Reliability Histories for Individual Circuits Serving Moreno Valley - 1 of 10 2014 2015 2016 1st Qtr 2017 2nd Qtr 2017 3rd Qtr 2017 4th Qtr 2017 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 ACCENT(12KV) - Customers: 1,587 7.0 0.1-36.6 0.2 2.0 355.5 2.1 1.6 - - CircuitHistory - 18.4 0.2-24.1 0.1 - - - - 42.5 0.3-3rd Party - - - - - - 6% 2% 61% - - 1- - - - - - - - - - - - - Equipment Failure - - - 83% 75% - 25% 51% - - - - 26% 22% - 70% 46% - - - - 51% 32% - Operation 100% 100% - 17% 25% - 69% 47% - - - - 74% 78% - 7% 8% - - - - 36% 50% - Other - - - - - 100% - - 39% - - - - - - 23% 46% - - - - 13% 19% - BARBEE(12KV) - Customers: 1,299 33.8 1.0 1.0 5.7 0.0 - - - 2.0 2.1 0.0 - - - - 1.0 0.0 - - - - 3.1 0.0-3rd Party 14% 3% - - - - - - - - - - - - - - - - - - - - - - Equipment Failure 3% 0% - 71% 35% - - - 50% 100% 100% - - - - - - - - - - 67% 76% - Operation - - - 29% 65% - - - 50% - - - - - - 100% 100% - - - - 33% 24% - Other - - 100% - - - - - - - - - - - - - - - - - - - - - Weather/Fire/Earthquake 83% 97% - - - - - - - - - - - - - - - - - - - - - - BARRATT(12KV) - Customers: 1,980 6.2 0.0 1.0 160.9 0.1 1.0 208.9 1.2 2.0 153.0 1.2-0.1 0.0 - - - - - - - 153.1 1.2-3rd Party - - - - - - - - - - - - - - - - - - - - - - - - Equipment Failure - - - 100% 100% 100% 95% 93% 50% 88% 89% - - - - - - - - - - 88% 89% - Operation 100% 100% - - - - 5% 7% 50% 12% 11% - 100% 100% - - - - - - - 12% 11% - Other - - 100% - - - - - - - - - - - - - - - - - - - - - BASIL(12KV) - Customers: 1,533 28.6 0.1-135.9 1.0 1.0 193.7 1.1 1.0 5.3 0.0 - - - - - - - 90.5 0.4-95.7 0.4-3rd Party - - - 90% 96% - - - 100% - - - - - - - - - - - - - - - Equipment Failure 100% 99% - 9% 4% - 12% 7% - 100% 100% - - - - - - - 99% 99% - 99% 99% - Operation 0% 1% - 0% 0% - 88% 93% - - - - - - - - - - 1% 1% - 1% 1% - Other - - - - - 100% - - - - - - - - - - - - - - - - - - 15

Reliability Histories for Individual Circuits Serving Moreno Valley - 2 of 10 CircuitHistory 2 2014 2015 2016 1st Qtr 2017 2nd Qtr 2017 3rd Qtr 2017 4th 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 BAZOOKA(12KV) - Customers: 1,062 524.8 4.2 12.0 10.2 1.1 1.1 1.5 0.0 2.1 7.2 0.0 - - - - 0.5 0.1 2.1 - - - 7.7 0.1 2.1 3rd Party 18% 29% 1% 69% 93% - 100% 100% 52% - - - - - - 50% 50% 4% - - - 3% 30% 4% Equipment Failure - - - 12% 3% 8% - - - 17% 9% - - - - - - - - - - 16% 3% - Operation - - - 18% 4% - - - - 83% 91% - - - - 50% 50% - - - - 81% 67% - Other 82% 71% 99% - - 92% - - 48% - - - - - - - - 48% - - - - - 48% Vegetation/Animal - - - - - - - - - - - - - - - - - 48% - - - - - 48% BENTON(12KV) - Customers: 2,317 1.5 0.0 2.0 89.8 2.1 2.9 172.0 1.2-0.8 0.0-3.5 0.2 1.0 69.5 1.4 - - - - 73.8 1.6 1.0 3rd Party - - 50% - - 67% - - - - - - - - - - - - - - - - - - Equipment Failure 100% 100% - 57% 47% - 96% 91% - 100% 100% - - - - 99% 98% - - - - 95% 89% - Operation - - - 9% 3% - 4% 9% - - - - - - - 1% 2% - - - - 1% 2% - Other - - 50% 34% 50% 33% - - - - - - 100% 100% 100% - - - - - - 5% 10% 100% BRUTTE(12KV) - Customers: 1,769 9.8 1.0 1.0 1.2 0.0 1.0 62.1 1.1 2.0 166.8 1.0 1.0 50.7 0.4 1.0 37.4 1.0-1.4 0.0-256.4 2.4 2.0 3rd Party - - - - - - 99% 99% - - - - - - - - - - - - - - - - Equipment Failure - - - 100% 100% - - - 50% 99% 99% 100% - - - 100% 100% - - - - 79% 84% 50% Operation 18% 2% - - - - 1% 1% 50% 1% 1% - 100% 100% 100% - - - 100% 100% - 21% 16% 50% Other 82% 98% 100% - - 100% - - - - - - - - - - - - - - - - - - CLOVE(12KV) - Customers: 962 354.0 2.9 3.2 77.3 1.0 2.0 280.9 1.1-3.1 0.0 1.0 15.0 0.0-14.0 0.1 2.0 - - - 32.0 0.1 3.0 3rd Party 1% 0% - 77% 53% 22% - - - - - - 50% 57% - - - - - - - 23% 20% - Equipment Failure 3% 34% 68% 12% 2% - - - - 100% 100% 100% 37% 21% - 73% 65% 100% - - - 59% 51% 100% Operation 1% 1% - 1% 1% - 100% 100% - - - - 13% 21% - 27% 35% - - - - 18% 29% - Other - - 32% 9% 45% 78% - - - - - - - - - - - - - - - - - - Weather/Fire/Earthquake 96% 65% - - - - - - - - - - - - - - - - - - - - - - 16

Reliability Histories for Individual Circuits Serving Moreno Valley - 3 of 10 CircuitHistory 3 2014 2015 2016 1st Qtr 2017 2nd Qtr 2017 3rd Qtr 2017 4th Qtr 2017 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 DILL(12KV) - Customers: 1,223 26.0 0.0-29.9 0.9 1.2 252.0 1.0 - - - - - - - - - - - - - - - - 3rd Party - - - - - 80% - - - - - - - - - - - - - - - - - - Equipment Failure 100% 100% - 70% 13% - - - - - - - - - - - - - - - - - - - Operation - - - - - - 100% 100% - - - - - - - - - - - - - - - - Other - - - 30% 87% 20% - - - - - - - - - - - - - - - - - - DUDA(12KV) - Customers: 783 13.2 1.0 1.0 - - - - - 2.0 - - - 159.9 1.0 - - - - - - - 159.9 1.0-3rd Party - - - - - - - - - - - - - - - - - - - - - - - - Equipment Failure - - - - - - - - 50% - - - - - - - - - - - - - - - Operation - - - - - - - - 50% - - - 100% 100% - - - - - - - 100% 100% - Other 100% 100% 100% - - - - - - - - - - - - - - - - - - - - - EDWIN(12KV) - Customers: 1,078 73.8 0.1-61.2 1.1-109.8 0.4-163.9 1.0 - - - - - - - - - - 163.9 1.0-3rd Party - - - - - - - - - - - - - - - - - - - - - - - - Equipment Failure - - - 38% 6% - 79% 39% - - - - - - - - - - - - - - - - Operation 100% 100% - 1% 1% - 21% 61% - - - - - - - - - - - - - - - - Other - - - 61% 93% - - - - 100% 100% - - - - - - - - - - 100% 100% - ELSWORTH(12KV) - Customers: 1,894 15.7 0.0-164.6 2.5 4.4 120.7 2.3 2.2 173.8 2.0 2.0 0.1 0.0 - - - 1.0 5.3 0.1 1.0 179.2 2.0 4.0 3rd Party - - - - - 43% - - - - - - - - - - - - - - - - - - Equipment Failure 100% 100% - 56% 25% 34% 40% 47% 54% - - - - - - - - - - - 100% - - 25% Operation - - - 21% 33% - - - - - - - 100% 100% - - - - 1% 1% - 0% 0% - Other - - - 23% 42% 23% 60% 53% 46% 100% 100% 100% - - - - - - 99% 99% - 100% 100% 50% Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - 100% - - - - - 25% 17

Reliability Histories for Individual Circuits Serving Moreno Valley - 4 of 10 CircuitHistory 4 2014 2015 2016 1st Qtr 2017 2nd Qtr 2017 3rd Qtr 2017 4th Qtr 2017 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 FANTASTICO(12KV) - Customers: 1,369 96.9 0.2-86.2 1.4 0.7 22.2 0.1-160.8 1.0-83.7 0.4 - - - - - - - 244.4 1.4-3rd Party - - - - - - - - - - - - - - - - - - - - - - - - Equipment Failure - - - 50% 19% 100% 43% 29% - - - - 89% 86% - - - - - - - 30% 24% - Operation 100% 100% - 2% 1% - 57% 71% - 2% 3% - 11% 14% - - - - - - - 5% 6% - Other - - - 48% 80% - - - - 98% 97% - - - - - - - - - - 65% 70% - FLAKE(12KV) - Customers: 2,109 5.5 0.0 1.0 10.2 0.1 1.0 36.5 0.2 2.0 5.2 0.0 1.0 10.2 0.1-12.5 0.0 - - - - 27.9 0.2 1.0 3rd Party - - - - - 100% - - - - - - - - - - - - - - - - - - Equipment Failure 100% 100% - - - - 78% 65% 50% - - - 92% 94% - 51% 37% - - - - 57% 51% - Operation - - - 100% 100% - 22% 35% 50% 100% 100% 100% - - - 49% 63% - - - - 40% 46% 100% Other - - 100% - - - - - - - - - 8% 6% - - - - - - - 3% 3% - GAMBLE(12KV) - Customers: 1,729 5.9 0.2 1.0 29.2 1.0-51.9 1.1 - - - - 138.7 2.0-17.6 0.0 - - - - 156.3 2.1-3rd Party 42% 9% 100% 1% 0% - 75% 95% - - - - - - - - - - - - - - - - Equipment Failure - - - - - - 8% 3% - - - - - - - 100% 100% - - - - 11% 1% - Operation 58% 91% - - - - 16% 3% - - - - 84% 94% - - - - - - - 75% 93% - Other - - - 99% 100% - - - - - - - 16% 6% - - - - - - - 14% 6% - GINGER(12KV) - Customers: 945 283.2 3.0 2.0 377.2 1.9 1.3 316.5 4.5 5.3 1.1 0.0 0.0 45.2 0.7 0.3 3.4 0.0 1.0 - - 1.0 49.6 0.8 2.3 3rd Party - - - 72% 53% - 0% 0% 38% - - - 100% 100% 100% - - - - - 100% 91% 92% 55% Equipment Failure 12% 1% - 25% 44% 23% 29% 54% 24% - - - - - - - - - - - - - - - Operation 7% 1% - 0% 2% - 71% 46% - 100% 100% 100% - - - 100% 100% - - - - 9% 8% 2% Other 81% 98% 100% - - 77% 0% 0% 19% - - - - - - - - 100% - - - - - 43% Weather/Fire/Earthquake - - - 2% 2% - - - 19% - - - - - - - - - - - - - - - 18

Reliability Histories for Individual Circuits Serving Moreno Valley - 5 of 10 CircuitHistory 5 2014 2015 2016 1st Qtr 2017 2nd Qtr 2017 3rd Qtr 2017 4th Qtr 2017 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 GRAHAM(12KV) - Customers: 1,674 101.0 2.4 2.0 50.8 0.3-3.9 0.0 2.0 - - - 23.2 0.1 0.1 - - - - - - 23.2 0.1 0.1 3rd Party - - 50% - - - - - - - - - - - - - - - - - - - - - Equipment Failure 73% 17% - - - - - - 50% - - - 100% 100% 100% - - - - - - 100% 100% 100% Operation - - - 100% 100% - 100% 100% 50% - - - - - - - - - - - - - - - Other 27% 83% 50% - - - - - - - - - - - - - - - - - - - - - HACKLER(12KV) - Customers: 1,873 50.8 1.2 1.0 6.1 0.0 5.0 933.5 3.4 3.3 - - - 2.8 0.0 1.0 - - - - - - 2.8 0.0 1.0 3rd Party - - - 25% 3% 20% - - - - - - - - - - - - - - - - - - Equipment Failure 51% 2% - 13% 9% - 25% 41% 68% - - - - - - - - - - - - - - - Operation 32% 16% - 61% 88% 20% 0% 1% 30% - - - 59% 84% - - - - - - - 59% 84% - Other 16% 82% 100% - - 60% - - - - - - - - - - - - - - - - - - Vegetation/Animal 1% 0% - - - - - - - - - - 41% 16% 100% - - - - - - 41% 16% 100% Weather/Fire/Earthquake - - - - - - 74% 59% 2% - - - - - - - - - - - - - - - HAMMOCK(33KV) - Customers: 5 334.0 5.0 6.0 377.3 5.6 5.9 255.8 3.3 3.8 - - 1.0 - - 0.2 145.2 2.0 2.4 134.8 2.2 1.2 280.0 4.2 4.8 3rd Party 68% 50% 75% 31% 55% 24% 3% 27% - - - - - - 100% - - - - - - - - 4% Equipment Failure - - - - - 5% 53% 33% 47% - - - - - - 52% 50% - 33% 45% 100% 42% 48% 25% Operation - - 8% - - - 3% 7% 24% - - - - - - - - 8% - - - - - 4% Other 30% 40% - 62% 20% 43% - - 29% - - 100% - - - - - 8% 67% 55% - 32% 29% 25% Vegetation/Animal 2% 10% 17% - - 10% - - - - - - - - - 48% 50% 42% - - - 25% 24% 21% Weather/Fire/Earthquake - - - 6% 25% 19% 41% 33% - - - - - - - - - 42% - - - - - 21% HEACOCK(12KV) - Customers: 2,617 106.4 1.2 2.0 249.3 3.1 1.9 81.0 1.1 - - - - 3.2 0.1 - - - - 0.0 0.0-3.2 0.1-3rd Party 63% 86% 50% 53% 34% - - - - - - - - - - - - - - - - - - - Equipment Failure 29% 9% 0% 35% 34% 49% 97% 94% - - - - - - - - - - - - - - - - Operation 8% 5% - - - 51% 3% 6% - - - - 100% 100% - - - - 100% 100% - 100% 100% - Other - - 50% 11% 32% - - - - - - - - - - - - - - - - - - - 19

Reliability Histories for Individual Circuits Serving Moreno Valley - 6 of 10 CircuitHistory 6 2014 2015 2016 1st Qtr 2017 2nd Qtr 2017 3rd Qtr 2017 4th Qtr 2017 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 HEERS(12KV) - Customers: 1,978 33.3 1.2 1.0 29.0 1.0-0.4 0.0 2.0 - - - 100.8 1.0 - - - - - - - 100.8 1.0-3rd Party 65% 3% - 100% 100% - - - - - - - 99% 100% - - - - - - - 99% 100% - Equipment Failure - - - - - - - - 50% - - - - - - - - - - - - - - - Operation 11% 12% - - - - 100% 100% 50% - - - 1% 0% - - - - - - - 1% 0% - Other 24% 86% 100% - - - - - - - - - - - - - - - - - - - - - HERO(12KV) - Customers: 1,454 93.1 1.0-4.5 0.0 0.1 33.4 0.2 3.0 - - 1.0 - - - 7.9 1.0 1.0 - - - 7.9 1.0 2.0 3rd Party 99% 99% - - - - - - 67% - - 100% - - - - - - - - - - - 50% Equipment Failure - - - 100% 100% 100% 90% 73% - - - - - - - 1% 0% - - - - 1% 0% - Operation 1% 1% - - - - 10% 27% - - - - - - - 99% 100% 100% - - - 99% 100% 50% Other - - - - - - - - 33% - - - - - - - - - - - - - - - IRONWOOD(33KV) - Customers: 8 28.0 1.0 1.0 20.8 1.0 1.0 138.7 2.8 - - - - - - 1.0 - - - - - - - - 1.0 3rd Party 100% 100% - - - - 6% 35% - - - - - - 100% - - - - - - - - 100% Equipment Failure - - - - - - 94% 65% - - - - - - - - - - - - - - - - Operation - - - - - - - - - - - - - - - - - - - - - - - - Other - - 100% 100% 100% 100% - - - - - - - - - - - - - - - - - - KINGSWAY(12KV) - Customers: 1,331 17.0 0.0-37.6 0.9-226.7 1.4 0.5 177.6 1.1 - - - - - - - - - - 177.6 1.1-3rd Party - - - - - - - - - - - - - - - - - - - - - - - - Equipment Failure 100% 100% - - - - 89% 79% 100% 7% 4% - - - - - - - - - - 7% 4% - Operation - - - 13% 4% - 11% 21% - 1% 5% - - - - - - - - - - 1% 5% - Other - - - 87% 96% - - - - 92% 90% - - - - - - - - - - 92% 90% - 20

Reliability Histories for Individual Circuits Serving Moreno Valley - 7 of 10 CircuitHistory 7 2014 2015 2016 1st Qtr 2017 2nd Qtr 2017 3rd Qtr 2017 4th Qtr 2017 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 LANDMARK(12KV) - Customers: 791 87.4 1.0 3.0 29.1 1.0-0.6 0.0-13.2 0.0 - - - - - - - - - - 13.2 0.0-3rd Party - - 33% - - - - - - - - - - - - - - - - - - - - - Equipment Failure 100% 100% 67% - - - - - - - - - - - - - - - - - - - - - Operation - - - - - - 100% 100% - 100% 100% - - - - - - - - - - 100% 100% - Other - - - 100% 100% - - - - - - - - - - - - - - - - - - - NANCE(12KV) - Customers: 1,658 - - 1.0 36.9 1.0-120.0 1.2 2.9 164.6 1.0 - - - - - - - - - - 164.6 1.0-3rd Party - - - - - - - - 34% - - - - - - - - - - - - - - - Equipment Failure - - 100% - - - 89% 93% 32% - - - - - - - - - - - - - - - Operation - - - - - - 11% 7% - - - - - - - - - - - - - - - - Other - - - 100% 100% - - - 34% 100% 100% - - - - - - - - - - 100% 100% - OLIVER(33KV) - Customers: 12 183.3 3.1 8.1 862.7 3.0 6.5 203.6 2.8 1.9 129.9 0.9 1.0 9.3 1.0 3.1 1.8 0.3 2.1 20.1 0.3 1.0 161.1 2.5 7.2 3rd Party 65% 64% 25% 20% 9% - 4% 36% - - - - - - - - - - - - - - - - Equipment Failure 35% 36% 4% - - 10% - - - 100% 100% 25% 100% 100% 33% - - - - - - 86% 79% 18% Operation - - - 1% 9% - 37% 7% - - - - - - - - - - - - - - - - Other - - 44% 21% 73% 71% 17% 21% 32% - - 75% - - 67% 100% 100% 100% 100% 100% 100% 14% 21% 82% Vegetation/Animal - - 28% 19% 5% 10% - - 68% - - - - - - - - - - - - - - - Weather/Fire/Earthquake - - - 39% 5% 8% 41% 36% - - - - - - - - - - - - - - - - OUTLAW(12KV) - Customers: 710 156.0 2.0 4.0 115.9 2.6 4.0 150.3 3.0 1.0 - - - - - 1.0 - - 1.0 - - - - - 2.0 3rd Party 18% 50% - 3% 0% - 5% 33% 100% - - - - - 100% - - - - - - - - 50% Equipment Failure - - - 28% 38% 50% 95% 67% - - - - - - - - - - - - - - - - Operation - - - - - - - - - - - - - - - - - 100% - - - - - 50% Other 82% 50% 100% 69% 62% 50% - - - - - - - - - - - - - - - - - - 21

Reliability Histories for Individual Circuits Serving Moreno Valley - 8 of 10 CircuitHistory 8 2014 2015 2016 1st Qtr 2017 2nd Qtr 2017 3rd Qtr 2017 4th Qtr 2017 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 REAGAN(12KV) - Customers: 1,041 - - - 28.9 1.0-57.3 0.6 0.4 - - - - - - 30.7 0.2-2.2 0.3 1.0 32.8 0.5 1.0 3rd Party - - - - - - 16% 17% - - - - - - - - - - - - - - - - Equipment Failure - - - - - - 84% 83% 100% - - - - - - 100% 100% - 100% 100% 100% 100% 100% 100% Operation - - - - - - - - - - - - - - - - - - - - - - - - Other - - - 100% 100% - - - - - - - - - - - - - - - - - - - REAKES(12KV) - Customers: 1,759 28.4 0.0 1.0 0.7 0.0 1.0 12.9 0.2 3.0 30.3 0.2-57.4 0.2 - - - - - - - 87.7 0.4-3rd Party 100% 100% - - - - - - - - - - - - - - - - - - - - - - Equipment Failure - - - 98% 50% - - - 33% 23% 8% - 100% 100% - - - - - - - 73% 56% - Operation - - - 2% 50% 100% 100% 100% 67% 77% 92% - - - - - - - - - - 27% 44% - Other - - 100% - - - - - - - - - - - - - - - - - - - - - RECHE(12KV) - Customers: 1,853 277.2 2.1 3.0 149.0 2.0 3.0 248.5 2.2 2.9 32.9 1.1 - - - - 41.7 0.1 1.0 0.2 0.0 1.0 74.8 1.1 2.0 3rd Party - - - 2% 1% - - - 34% - - - - - - 100% 100% 100% - - - 56% 5% 50% Equipment Failure 64% 49% 33% 0% 0% 33% 68% 52% - 49% 5% - - - - - - - - - - 21% 5% - Operation 2% 2% - - - - 31% 48% 66% 51% 95% - - - - - - - 100% 100% 100% 23% 90% 50% Other - - 33% - - 33% 1% 0% - - - - - - - - - - - - - - - - Weather/Fire/Earthquake 34% 49% 33% 98% 99% 33% - - - - - - - - - - - - - - - - - - RIVARD(12KV) - Customers: 786 - - - 157.2 2.0-271.4 0.9 1.0 216.9 2.0 - - - 1.0 3.1 0.0 - - - - 219.9 2.0 1.0 3rd Party - - - - - - 12% 6% - 26% 50% - - - 100% 4% 4% - - - - 25% 49% 100% Equipment Failure - - - 74% 47% - 5% 8% - - - - - - - - - - - - - - - - Operation - - - 2% 2% - 84% 86% 100% - - - - - - 96% 96% - - - - 1% 2% - Other - - - 24% 51% - - - - 74% 50% - - - - - - - - - - 73% 49% - 22

Reliability Histories for Individual Circuits Serving Moreno Valley - 9 of 10 CircuitHistory 9 2014 2015 2016 1st Qtr 2017 2nd Qtr 2017 3rd Qtr 2017 4th Qtr 2017 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 ROWE(12KV) - Customers: 1,521 - - 1.0 - - - - - 2.0 - - - - - - - - - 5.6 0.0-5.6 0.0-3rd Party - - - - - - - - - - - - - - - - - - - - - - - - Equipment Failure - - - - - - - - 50% - - - - - - - - - - - - - - - Operation - - - - - - - - 50% - - - - - - - - - 100% 100% - 100% 100% - Other - - 100% - - - - - - - - - - - - - - - - - - - - - SNYDER(12KV) - Customers: 2,347 - - 1.0 33.7 1.0-380.2 3.0 0.0 20.8 1.0 1.0 - - - 16.0 1.0-16.1 0.1-53.0 2.1 1.0 3rd Party - - 100% - - - - - - 7% 1% - - - - - - - - - - 3% 1% - Equipment Failure - - - 19% 3% - 23% 66% 100% 93% 99% 100% - - - - - - 100% 100% - 67% 52% 100% Operation - - - - - - - - - - - - - - - - - - - - - - - - Other - - - 81% 97% - 1% 1% - - - - - - - - - - - - - - - - Weather/Fire/Earthquake - - - - - - 75% 33% - - - - - - - 100% 100% - - - - 30% 47% - SPICE(12KV) - Customers: 1,372 43.9 1.0-325.7 1.0 1.0 314.4 1.1 - - - - 4.6 0.0-17.4 0.1-3.0 0.0-25.0 0.1-3rd Party - - - 99% 99% - - - - - - - - - - - - - - - - - - - Equipment Failure 10% 3% - 1% 1% - 3% 6% - - - - - - - 100% 100% - - - - 70% 62% - Operation 90% 97% - - - - 97% 94% - - - - 100% 100% - - - - 100% 100% - 30% 38% - Other - - - - - 100% - - - - - - - - - - - - - - - - - - TRINITY(12KV) - Customers: 1,451 253.0 2.8 5.0 59.4 1.2 - - - - 2.2 0.0 - - - - - - 1.0 - - - 2.2 0.0 1.0 3rd Party 74% 36% 20% - - - - - - - - - - - - - - - - - - - - - Equipment Failure 25% 53% - 23% 4% - - - - - - - - - - - - - - - - - - - Operation 1% 11% 20% 9% 4% - - - - 100% 100% - - - - - - - - - - 100% 100% - Other - - 60% 67% 91% - - - - - - - - - - - - - - - - - - - Weather/Fire/Earthquake - - - - - - - - - - - - - - - - - 100% - - - - - 100% 23

Reliability Histories for Individual Circuits Serving Moreno Valley - 10 of 10 2014 2015 2016 1st Qtr 2017 2nd Qtr 2017 3rd Qtr 2017 CircuitHistory10 4th Qtr 2017 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 TURMERIC(12KV) - Customers: 2,352 94.1 0.2 2.4 249.2 3.4 5.6 166.6 1.1 1.0 0.6 0.0-0.4 0.0 - - - - - - - 1.0 0.0-3rd Party 98% 98% - 49% 19% 11% - - - - - - - - - - - - - - - - - - Equipment Failure - - - 5% 2% - - - - - - - - - - - - - - - - - - - Operation - - - 4% 2% 6% 100% 100% - 100% 100% - 100% 100% - - - - - - - 100% 100% - Other - - 42% 6% 29% 82% - - 100% - - - - - - - - - - - - - - - Weather/Fire/Earthquake 2% 2% 58% 36% 48% - - - - - - - - - - - - - - - - - - - WESTBLUFF(12KV) - Customers: 1,398 37.4 1.1 1.5 60.4 0.2 1.0 25.2 0.4 5.1 40.6 0.5 0.3 0.9 0.0 1.1 14.7 0.1 0.1 - - - 56.2 0.6 1.6 3rd Party - - 24% - - 100% 7% 2% 20% - - - - - - - - - - - - - - - Equipment Failure 73% 10% - - - - 73% 45% 19% 91% 76% 27% - - - 81% 86% 100% - - - 87% 77% 13% Operation 6% 1% 8% 12% 45% - 19% 52% 41% - - - 100% 100% 10% 11% 11% - - - - 5% 1% 7% Other 21% 89% 68% 82% 54% - - - 20% 9% 24% 73% - - 90% - - - - - - 7% 21% 79% Weather/Fire/Earthquake - - - 6% 1% - - - - - - - - - - 8% 4% - - - - 2% 0% - ZANTAR(12KV) - Customers: 1,644 10.3 0.1 1.0 19.7 0.2 0.1 16.9 0.0 2.0 76.7 0.1 - - - - - - - - - - 76.7 0.1-3rd Party - - - - - - - - - - - - - - - - - - - - - - - - Equipment Failure 100% 100% - 100% 100% - 100% 100% 50% 100% 100% - - - - - - - - - - 100% 100% - Operation - - - - - 100% - - 50% - - - - - - - - - - - - - - - Other - - 100% - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 24