IOU · California · EIA 17609
Southern California Edison Co
IOU · California · 3.7M customers. According to the U.S. Energy Information Administration's EIA Form 861, reliability for 2023 shows SAIDI 116 minutes/customer.
Reliability verdict
Southern California Edison Co shows above-average chronic reliability in 2023: 96 minutes SAIDI excluding major events across 3.7M customers.
- 116 min
- SAIDI 2023
- 1.04
- SAIFI 2023
- 96 min
- SAIDI ex-MED
- 3.7M
- Customers
Chronic reliability judged on SAIDI excluding major event days when reported (IEEE 1366). Source: EIA Form 861 · August 2026.
Signature read: mid-cohort SAIDI between the 96 and 258 minute tercile cuts.
What mid-pack Southern California Edison Co filings show
Southern California Edison Co is an investor-owned utility operating in California under EIA identifier 17609. It reports service to approximately 3,651,383 customer accounts and generated about $12.74 billion in annual electric revenue, with a service footprint spanning 500 ZIP codes. Because it is investor-owned, the state public utility commission oversees its rate cases and reliability performance rather than a local board.
In 2023, the average Southern California Edison Co customer experienced 115.9 minutes of power interruptions, a measure known as SAIDI, or System Average Interruption Duration Index. That places this utility well below the 120–180 minute national benchmark, signaling strong grid hardening and fast restoration practices. SAIFI, the average number of outage events per customer, was 1.04 for the same period, so customers statistically faced roughly 1 distinct interruption that year. Excluding major event days (hurricanes, ice storms), SAIDI drops to 95.9 minutes, the gap between that figure and the headline 115.9 reveals how much weather, not day-to-day infrastructure, drove outages.
With 4 consecutive years of EIA data (2020–2023), Southern California Edison Co's reliability record can be judged on trend rather than one isolated year. SAIDI has improved from 201.2 to 115.9 minutes over that window, a meaningful direction for prospective customers and regulators watching capital investment outcomes.
Based on this utility's own EIA Form 861 reliability record -- baseline (major-event- excluded) outage duration, total outage duration, and outage frequency -- each benchmarked against every reporting utility nationwide. Not a measure of electricity rates or customer service, which this portal does not track.
116 minutes per customer per year
Minutes without power per year (2023)
SAIDI by year (2020-2023)
Minutes per customer-year · EIA Form 861
Year-by-year SAIDI for Southern California Edison Co from the same EIA filings as the table below. Lower is better; major-event years can spike the headline figure.
Southern California Edison Co SAIDI trend
Southern California Edison Co vs the nationwide SAIDI distribution
Where this utility's headline SAIDI sits among every EIA Form 861 utility with a reported figure
116 Lower than most fewer outage minutes than 62% of 911 utilities
Utilities nationwide, banded by latest reported SAIDI (minutes)
Each bar is a band; taller bars hold more utilities. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source U.S. EIA Form 861 reliability filings · August 2026
Price vs. reliability
Where Southern California Edison Co sits on price vs. reliability
Among the 781 U.S. utilities large enough to report both revenue per customer and a recent outage record, Southern California Edison Co charges more per customer than 88% of them, and is more reliable (lower SAIDI) than 65% of them, placing it in the quadrant where it pays more and is more reliable. Revenue per customer and outage minutes are independent figures: paying more does not guarantee fewer outages.
Revenue per customer: $3,490/year · Latest SAIDI: 115.9 minutes/year.
SAIDI 2023 breakdown: 115.9 minutes
Reliability Trend (2020–2023)
| Year | SAIDI (min) | SAIDI nMED | SAIFI | Customers |
|---|---|---|---|---|
| 2020 | 201.2 | 91.3 | 1.060 | 5,183,307 |
| 2021 | 179.7 | 103.8 | 1.111 | 5,201,994 |
| 2022 | 131.1 | 101.0 | 1.080 | 5,240,509 |
| 2023 | 115.9 | 95.9 | 1.036 | 5,275,302 |
SAIDI nMED = SAIDI without major event days. Source: EIA Form 861.
Service Area
Southern California Edison Co serves 500 ZIP codes in California.
Frequently Asked Questions
How reliable is Southern California Edison Co?
Southern California Edison Co had a SAIDI of 115.9 minutes in 2023. Excluding major storm impacts, this beats the national average, a sign of above-average reliability.
What type of utility is Southern California Edison Co?
Southern California Edison Co is classified as a IOU serving California.
How many customers does Southern California Edison Co serve?
Southern California Edison Co serves approximately 3,651,383 customers in California.
How has Southern California Edison Co's reliability changed over time?
Southern California Edison Co has 4 years of reliability data (2020-2023). SAIDI has held roughly steady across these years. Review the trend table above for year-by-year detail.
Utility Profile
- Type
- IOU
- State
- California
- Customers
- 3,651,383
- Annual Revenue
- $12.74B
- EIA ID
- 17609
Explore
Utilities with similar EIA profiles
Two cross-state peer sets for Southern California Edison Co. Same-state SAIDI neighbors stay in Read-with below; these neighborhoods are nearest other-state utilities with at least 10,000 reported customers.
Similar customer count
Nearest utilities by Form 861 customers (3.7M here), outside California.
Similar chronic SAIDI
Nearest utilities by latest SAIDI minutes (115.9 here), outside California, excluding the customer-peer set.
Source: U.S. Energy Information Administration Form 861 annual electric power industry survey · ZIP service territory: OpenEI. Disclaimer: informational only, not professional advice. See full disclaimer · methodology.