Orange County Power Outage History
2014–2025 · California
Better than average — fewer or shorter outages than most counties. How grades are calculated
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Jan 8, 2025 | 18 hrs | 253,449 (20%) | High Wind |
| Jun 8, 2015 | 2 hrs | 124,111 (10%) | Unnamed event |
| Jun 8, 2015 | 2 hrs | 123,126 (10%) | Unnamed event |
| Apr 22, 2021 | 2 hrs | 106,672 (8%) | Unnamed event |
| Apr 22, 2021 | 17 hrs | 106,514 (8%) | Unnamed event |
Over the 12 years from 2014 to 2025, Orange County recorded 8,687 distinct power outage events, averaging 4.3 hours per event.
The single worst outage on record in Orange County started January 8, 2025 (High Wind), lasting 18 hours and leaving up to 253,449 customers without power (20% of the county) at its peak.
August has historically been the worst month for outages in Orange County, with 844 events recorded during that month across the dataset.
Based on this history, Orange County earns a Reliability Grade of B, placing it in the 65th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Orange County's outage profile
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Outage-prep kit
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Similar counties in California
Counties with the closest reliability grade and national percentile to Orange County.
| County | Grade | National percentile |
|---|---|---|
| San Joaquin County | B | 65th |
| Sutter County | B | 64th |
| Alameda County | B | 68th |
| San Diego County | B | 61st |
| Kern County | B | 60th |
FAQ
How often does power go out in Orange County?
Between 2014 and 2025, Orange County recorded 8,687 outage events, averaging 4.3 hours each.
What is Orange County's reliability grade?
Orange County has a Reliability Grade of B, in the 65th national percentile.
What was the worst power outage in Orange County?
The worst outage on record started January 8, 2025 (High Wind), lasting 18 hours and affecting up to 253,449 customers.