County annual report · FIPS 06059
2021 Orange County, CA Power Outage Report
In 2021, customers in Orange County, CA went without power for an average of 3.2 hours, a total of 4.0M customer-hours (California average 6.6 hours). That ranks 51st worst of 57 California counties and 1784th 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 Orange 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 | April 22, 2021 03:15 | April 22, 2021 11:15 | 8h | 106,672 | 290K |
| 2 | April 22, 2021 15:15 | April 24, 2021 03:15 | 1d 12h | 106,514 | 358K |
| 3 | April 21, 2021 06:00 | April 22, 2021 01:15 | 19h 15m | 103,783 | 395K |
| 4 | August 31, 2021 13:15 | September 1, 2021 11:45 | 22h 30m | 42,564 | 26K |
| 5 | January 15, 2021 13:30 | January 15, 2021 13:45 | 15m | 31,678 | 7,920 |
| 6 | March 1, 2021 15:00 | March 2, 2021 04:15 | 13h 15m | 26,836 | 12K |
| 7 | April 16, 2021 12:30 | April 16, 2021 12:45 | 15m | 26,748 | 6,687 |
| 8 | February 20, 2021 05:15 | February 22, 2021 14:00 | 2d 8h | 26,671 | 14K |
| 9 | June 7, 2021 09:00 | June 10, 2021 14:00 | 3d 5h | 20,525 | 29K |
| 10 | March 2, 2021 05:30 | March 3, 2021 23:45 | 1d 18h | 19,118 | 18K |
Outage episodes by size in 2021: 299 reached 100+ customers, 170 reached 1,000+ customers, 24 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 Orange 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 |
| San Diego Gas & Electric Co | 2021 | 77 min | 0.67 | 72 min | 0.67 |
| City of Anaheim - (CA) | 2021 | 71 min | 0.86 | 71 min | 0.86 |
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 ÷ 1,255,530 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. Orange County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Orange 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/orange-county