County annual report · FIPS 06025
2021 Imperial County, CA Power Outage Report
In 2021, customers in Imperial County, CA went without power for an average of 4.0 hours, a total of 292K customer-hours (California average 6.6 hours). That ranks 45th worst of 57 California counties and 1535th of 2,974 nationally.
Compared with CA, the US and 2020
Coverage line is EAGLE-I's share of California customers tracked each year.
Biggest outages in Imperial County, 2021
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | December 3, 2021 00:15 | December 3, 2021 01:00 | 45m | 2,956 | 2,217 |
| 2 | April 22, 2021 14:45 | April 22, 2021 15:45 | 1h | 1,371 | 1,371 |
| 3 | October 25, 2021 17:45 | October 25, 2021 21:00 | 3h 15m | 1,105 | 3,486 |
| 4 | April 1, 2021 23:00 | April 10, 2021 13:00 | 8d 14h | 764 | 90K |
| 5 | July 16, 2021 19:30 | July 22, 2021 15:00 | 5d 19h | 742 | 100K |
| 6 | March 30, 2021 20:30 | March 30, 2021 21:15 | 45m | 620 | 465 |
| 7 | September 24, 2021 17:45 | September 30, 2021 17:00 | 5d 23h | 618 | 5,288 |
| 8 | December 17, 2021 18:00 | December 17, 2021 19:30 | 1h 30m | 608 | 912 |
| 9 | August 31, 2021 02:30 | August 31, 2021 03:30 | 1h | 375 | 375 |
| 10 | August 31, 2021 00:00 | August 31, 2021 00:45 | 45m | 374 | 281 |
Outage episodes by size in 2021: 21 reached 100+ customers, 3 reached 1,000+ customers, 0 reached 10,000+ customers.
Utility reliability filed with the EIA
SAIDI (average outage time per customer) and SAIFI (average interruptions per customer) that utilities serving Imperial County reported on EIA Form 861 for 2021, or their most recent earlier filing. Utility-wide figures, not county-specific.
| Utility | EIA year | SAIDI | SAIFI | SAIDI excl. major events | SAIFI excl. major events |
|---|---|---|---|---|---|
| Southern California Edison Co | 2021 | 3.0 hrs | 1.11 | 1.7 hrs | 0.96 |
| Imperial Irrigation District | 2021 | 1.9 hrs | 0.70 | 71 min | 0.66 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 95% of California's customers in 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 72,691 customers (ORNL modeled county customer count), including major storm days. It is comparable across counties but is not the SAIDI a utility files.
- An outage event is a continuous stretch with customers out; counts at 100, 1,000 and 10,000+ use its peak.
- Years loaded: 2015–2025. Imperial County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Imperial County, CA annual power outage report, 2021, data as of Oct 3, 2026 02:41 UTC, sources: DOE EAGLE-I (https://eagle-i.doe.gov/); EAGLE-I modeled customer counts (MCC) (https://figshare.com/); EIA Form 861 (utility reliability) (https://www.eia.gov/electricity/data/eia861/). https://massoutage.com/reports/2021/california/imperial-county