County annual report · FIPS 06059
2017 Orange County, CA Power Outage Report
In 2017, customers in Orange County, CA went without power for an average of 2.8 hours, a total of 3.5M customer-hours (California average 2.2 hours). That ranks 10th worst of 47 California counties and 1402nd of 2,786 nationally.
Compared with CA, the US and 2016
Coverage line is EAGLE-I's share of California customers tracked each year.
Biggest outages in Orange County, 2017
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | February 3, 2017 16:45 | February 4, 2017 04:30 | 11h 45m | 23,377 | 6,766 |
| 2 | February 4, 2017 23:15 | February 4, 2017 23:45 | 30m | 21,739 | 11K |
| 3 | January 19, 2017 14:45 | January 26, 2017 11:00 | 6d 20h | 16,772 | 252K |
| 4 | February 17, 2017 17:45 | February 18, 2017 04:30 | 10h 45m | 14,626 | 58K |
| 5 | February 27, 2017 06:15 | February 28, 2017 12:45 | 1d 6h | 11,231 | 20K |
| 6 | August 15, 2017 08:30 | August 17, 2017 01:30 | 1d 17h | 9,303 | 80K |
| 7 | May 4, 2017 15:15 | May 6, 2017 05:15 | 1d 14h | 9,030 | 25K |
| 8 | May 21, 2017 08:45 | May 24, 2017 12:00 | 3d 3h | 7,904 | 74K |
| 9 | July 7, 2017 11:30 | July 10, 2017 14:15 | 3d 2h | 7,190 | 33K |
| 10 | October 3, 2017 14:00 | October 6, 2017 13:15 | 2d 23h | 7,068 | 45K |
Outage episodes by size in 2017: 277 reached 100+ customers, 162 reached 1,000+ customers, 5 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 2017, 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 | 2017 | 2.3 hrs | 1.19 | 1.5 hrs | 0.87 |
| San Diego Gas & Electric Co | 2017 | 2.0 hrs | 0.58 | 65 min | 0.51 |
| City of Anaheim - (CA) | 2017 | 35 min | 0.57 | 35 min | 0.57 |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about n/a of California's customers in 2017; 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, 2017, 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/2017/california/orange-county