County annual report · FIPS 06065
2015 Riverside County, CA Power Outage Report
In 2015, customers in Riverside County, CA went without power for an average of 3.2 hours, a total of 2.8M customer-hours (California average 3.1 hours). That ranks 8th worst of 23 California counties and 856th 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 Riverside 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 | September 25, 2015 04:15 | September 26, 2015 02:15 | 22h | 16,984 | 9,167 |
| 2 | May 25, 2015 01:30 | May 25, 2015 03:15 | 1h 45m | 13,356 | 4,265 |
| 3 | March 3, 2015 16:15 | March 4, 2015 05:45 | 13h 30m | 12,778 | 13K |
| 4 | September 26, 2015 04:15 | September 27, 2015 05:15 | 1d 1h | 11,189 | 28K |
| 5 | March 1, 2015 06:00 | March 1, 2015 08:00 | 2h | 10,163 | 18K |
| 6 | September 8, 2015 15:30 | September 12, 2015 20:30 | 4d 5h | 7,114 | 92K |
| 7 | July 30, 2015 13:15 | August 1, 2015 10:00 | 1d 20h | 6,780 | 61K |
| 8 | December 26, 2015 16:30 | December 29, 2015 05:00 | 2d 12h | 6,651 | 61K |
| 9 | June 15, 2015 06:00 | June 17, 2015 01:30 | 1d 19h | 6,067 | 28K |
| 10 | September 18, 2015 12:45 | September 22, 2015 00:15 | 3d 11h | 5,482 | 47K |
Outage episodes by size in 2015: 312 reached 100+ customers, 178 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 Riverside 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 |
| Arizona Public Service Co | 2015 | 2.0 hrs | 0.91 | 87 min | 0.87 |
| Imperial Irrigation District | 2015 | 76 min | 0.91 | 53 min | 0.61 |
| City of Riverside - (CA) | 2015 | 76 min | 0.88 | 63 min | 0.86 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| Anza Electric Coop Inc | - | - | - | - | - |
| City of Banning - (CA) | - | - | - | - | - |
| City of Corona - (CA) | - | - | - | - | - |
| City of Moreno Valley - (CA) | - | - | - | - | - |
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 ÷ 853,923 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. Riverside County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Riverside 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/riverside-county