SAIDI
265 min per year
Average outage minutes (2023)
Liberty Utilities is an investor-owned utility operating in California under EIA identifier 57483. It reports service to approximately 50,030 customer accounts and generated about $0.10 billion in annual electric revenue, with a service footprint spanning 23 ZIP codes. Investor ownership puts this utility under the regulatory authority of the state public utility commission, which reviews its rate requests and reliability record.
In 2023, the average Liberty Utilities customer experienced 264.6 minutes of power interruptions, a measure known as SAIDI, or System Average Interruption Duration Index. That lands within the usual 120–180 minute national benchmark band, roughly on par with typical U.S. distribution-utility performance. SAIFI, the average number of outage events per customer, was 1.97 for the same period, so customers statistically faced roughly 2 distinct interruptions that year. Once major event days (hurricanes, ice storms) are excluded, SAIDI comes down to 264.6 minutes, and the spread against the headline 264.6 indicates how much weather, versus routine infrastructure, drove the outage total.
Liberty Utilities has 4 years of continuous EIA reporting on file (2020–2023), enough to read a real trend rather than a single-year snapshot. SAIDI climbed from 242.7 to 264.6 minutes over that window, a shift that can point to worsening weather exposure or delayed grid modernization.
SAIDI
265 min per year
Average outage minutes (2023)
SAIFI
1.97 interruptions/yr
Outage frequency (2023)
Customers
50,030
Served in California
265 minutes per customer per year
Annual minutes without electric service (2023)
| Year | SAIDI (min) | SAIDI nMED | SAIFI | Customers |
|---|---|---|---|---|
| 2020 | 242.7 | 242.7 | 1.870 | 48,925 |
| 2021 | 1007.1 | 701.7 | 4.597 | 50,151 |
| 2022 | 1528.1 | 471.7 | 5.186 | 50,151 |
| 2023 | 264.6 | 264.6 | 1.967 | 50,151 |
SAIDI nMED = SAIDI without major event days. Source: EIA Form 861.
Liberty Utilities serves 23 ZIP codes in California.
Liberty Utilities had a SAIDI of 264.6 minutes in 2023. Leaving aside major weather events, that figure sits close to the national average.
Liberty Utilities is classified as a IOU serving California.
Liberty Utilities serves approximately 50,030 customers in California.
Liberty Utilities has 4 years of reliability data (2020-2023). This utility's SAIDI has stayed fairly flat over the period. Review the trend table above for year-by-year detail.
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.
Every figure on PlainUtility is rendered directly from the U.S. Energy Information Administration's Form 861 reliability data, no number is typed in by an editor. This utility's SAIDI/SAIFI figures are rendered directly from EIA Form 861 reliability files. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2020-2023.