County annual report · FIPS 06059
2018 Orange County, CA Power Outage Report
In 2018, customers in Orange County, CA went without power for an average of 0.6 hours, a total of 757K customer-hours (California average 3.7 hours). That ranks 54th worst of 57 California counties and 2462nd of 2,798 nationally.
Compared with CA, the US and 2017
Coverage line is EAGLE-I's share of California customers tracked each year.
Biggest outages in Orange County, 2018
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | March 17, 2018 14:45 | March 18, 2018 09:15 | 18h 30m | 12,097 | 17K |
| 2 | January 16, 2018 16:30 | January 17, 2018 05:30 | 13h | 5,302 | 13K |
| 3 | January 29, 2018 16:15 | January 30, 2018 13:45 | 21h 30m | 5,205 | 9,171 |
| 4 | January 9, 2018 02:00 | January 11, 2018 14:45 | 2d 12h | 5,046 | 29K |
| 5 | March 1, 2018 16:15 | March 2, 2018 12:30 | 20h 15m | 4,804 | 8,551 |
| 6 | July 6, 2018 05:30 | July 6, 2018 20:30 | 15h | 4,700 | 11K |
| 7 | September 3, 2018 23:45 | September 4, 2018 13:15 | 13h 30m | 4,683 | 3,477 |
| 8 | February 14, 2018 06:15 | February 15, 2018 11:00 | 1d 4h | 4,589 | 26K |
| 9 | September 8, 2018 14:00 | September 9, 2018 03:45 | 13h 45m | 4,424 | 2,399 |
| 10 | February 23, 2018 16:15 | February 24, 2018 11:45 | 19h 30m | 4,242 | 14K |
Outage episodes by size in 2018: 156 reached 100+ customers, 61 reached 1,000+ customers, 1 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 2018, 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 | 2018 | 2.3 hrs | 0.87 | 71 min | 0.72 |
| San Diego Gas & Electric Co | 2018 | 2.0 hrs | 0.66 | 78 min | 0.63 |
| City of Anaheim - (CA) | 2018 | 27 min | 0.50 | 27 min | 0.50 |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 91% of California's customers in 2018; 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, 2018, 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/2018/california/orange-county