County annual report · FIPS 06057
2025 Nevada County, CA Power Outage Report
In 2025, customers in Nevada County, CA went without power for an average of 11.7 hours, a total of 614K customer-hours (California average 7.6 hours). That ranks 17th worst of 57 California counties and 671st of 3,000 nationally.
Compared with CA, the US and 2024
Coverage line is EAGLE-I's share of California customers tracked each year.
Biggest outages in Nevada County, 2025
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | May 29, 2025 10:45 | May 29, 2025 22:00 | 11h 15m | 21,263 | 83K |
| 2 | October 3, 2025 11:00 | October 4, 2025 04:00 | 17h | 18,293 | 13K |
| 3 | December 24, 2025 09:15 | December 29, 2025 01:15 | 4d 16h | 14,259 | 177K |
| 4 | March 2, 2025 17:30 | March 2, 2025 18:30 | 1h | 4,817 | 3,364 |
| 5 | July 25, 2025 06:30 | July 26, 2025 17:45 | 1d 11h | 4,424 | 12K |
| 6 | December 15, 2025 20:45 | December 15, 2025 23:00 | 2h 15m | 4,266 | 2,500 |
| 7 | June 15, 2025 13:00 | June 15, 2025 18:45 | 5h 45m | 3,854 | 6,582 |
| 8 | September 2, 2025 15:45 | September 4, 2025 11:45 | 1d 20h | 3,780 | 18K |
| 9 | September 23, 2025 15:30 | September 24, 2025 02:30 | 11h | 3,704 | 4,142 |
| 10 | December 21, 2025 10:45 | December 22, 2025 07:15 | 20h 30m | 3,585 | 11K |
Outage episodes by size in 2025: 139 reached 100+ customers, 44 reached 1,000+ customers, 3 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 Nevada County reported on EIA Form 861 for 2025, 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 |
|---|---|---|---|---|---|
| Pacific Gas & Electric Co. | 2024 | 8.5 hrs | 2.15 | 4.6 hrs | 1.82 |
| Liberty Utilities | 2024 | 12.4 hrs | 2.57 | 8.3 hrs | 2.37 |
| Truckee Donner P U D | 2018 | 5.0 hrs | 0.88 | - | - |
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 2025; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 52,251 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. Nevada County has data for 2015, 2017–2025.
Cite this report
MassOutage (massoutage.com), Nevada County, CA annual power outage report, 2025, 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/2025/california/nevada-county