Imperial Irrigation District: power outages per year
In 2025 the average Imperial Irrigation District customer was without power for 1.9 hours, less than the California average of 5.8 h; up from 1.0 h in 2024. The utility served 166,111 customers in California and ranks #5 of 9 large California utilities by outage hours.
By year
| Year | Hours (with major events) | Hours (without) | Interruptions | Customers |
|---|---|---|---|---|
| 2025 | 1.9 | 0.9 | 0.7 | 166,111 |
| 2024 | 1.0 | 1.0 | 0.7 | 165,674 |
| 2023 | 2.7 | 1.2 | 0.9 | 161,614 |
| 2022 | 1.1 | 0.9 | 0.7 | 159,216 |
| 2021 | 1.9 | 1.2 | 0.7 | 157,819 |
| 2020 | 1.2 | 1.0 | 0.6 | 157,713 |
"With major events" includes storm days that utilities may exclude from their own reliability targets; it is what customers actually live through. The gap between the two columns shows how much of the year's outage time came from big storms.
Backup power for Imperial Irrigation District outages
An average outage here lasted about 2.6 hours in 2025. Size backup for the longest outage you want to ride through, not the average.
Other large utilities in California
FAQ
How many hours a year are Imperial Irrigation District customers without power?
1.9 hours per customer in 2025 including major event days (0.9 h without them), as Imperial Irrigation District reported to the U.S. EIA.
How long does a typical Imperial Irrigation District outage last?
About 2.6 hours on average in 2025 (total outage minutes divided by the number of interruptions). Storms make single events much longer.
Source: U.S. EIA Form 861, Reliability file, 2020–2025. Data snapshot . Utilities ranked nationwide →