County annual report · FIPS 06059
2015 Orange County, CA Power Outage Report
In 2015, customers in Orange County, CA went without power for an average of 3.5 hours, a total of 4.5M customer-hours (California average 3.1 hours). That ranks 7th worst of 23 California counties and 793rd of 2,484 nationally.
Compared with CA, the US
Coverage line is EAGLE-I's share of California customers tracked each year.
Biggest outages in Orange County, 2015
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | June 8, 2015 04:00 | June 11, 2015 14:30 | 3d 10h | 124,111 | 256K |
| 2 | October 1, 2015 15:30 | October 3, 2015 13:15 | 1d 21h | 40,711 | 47K |
| 3 | June 1, 2015 14:45 | June 2, 2015 12:45 | 22h | 26,754 | 26K |
| 4 | December 17, 2015 16:45 | December 21, 2015 06:15 | 3d 13h | 16,303 | 49K |
| 5 | September 18, 2015 15:30 | September 23, 2015 12:00 | 4d 20h | 12,209 | 107K |
| 6 | March 24, 2015 15:30 | March 25, 2015 23:45 | 1d 8h | 9,115 | 23K |
| 7 | March 22, 2015 03:45 | March 23, 2015 04:00 | 1d | 8,220 | 9,613 |
| 8 | September 6, 2015 04:00 | September 12, 2015 13:00 | 6d 9h | 7,900 | 82K |
| 9 | November 2, 2015 05:00 | November 10, 2015 02:15 | 7d 21h | 7,807 | 161K |
| 10 | January 11, 2015 10:30 | January 14, 2015 15:00 | 3d 4h | 7,766 | 48K |
Outage episodes by size in 2015: 246 reached 100+ customers, 171 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 2015, 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 | 2015 | 1.9 hrs | 0.92 | 1.7 hrs | 0.86 |
| San Diego Gas & Electric Co | 2015 | 63 min | 0.62 | 58 min | 0.53 |
| City of Anaheim - (CA) | 2015 | 35 min | 0.36 | 35 min | 0.36 |
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 2015; 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, 2015, 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/2015/california/orange-county