County annual report · FIPS 06103
2025 Tehama County, CA Power Outage Report
In 2025, customers in Tehama County, CA went without power for an average of 9.9 hours, a total of 278K customer-hours (California average 7.6 hours). That ranks 22nd worst of 57 California counties and 809th 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 Tehama 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 | April 20, 2025 05:00 | April 20, 2025 06:45 | 1h 45m | 6,277 | 7,654 |
| 2 | August 27, 2025 02:00 | August 28, 2025 04:15 | 1d 2h | 5,869 | 13K |
| 3 | March 30, 2025 02:15 | March 30, 2025 10:15 | 8h | 4,365 | 1,782 |
| 4 | April 10, 2025 16:00 | April 10, 2025 23:00 | 7h | 4,294 | 9,956 |
| 5 | August 26, 2025 02:15 | August 27, 2025 00:15 | 22h | 4,291 | 27K |
| 6 | March 16, 2025 18:45 | March 17, 2025 19:00 | 1d | 3,716 | 15K |
| 7 | October 3, 2025 07:00 | October 4, 2025 05:15 | 22h 15m | 2,966 | 7,129 |
| 8 | June 19, 2025 20:30 | June 22, 2025 22:00 | 3d 1h | 2,618 | 47K |
| 9 | October 2, 2025 18:45 | October 3, 2025 05:45 | 11h | 1,899 | 6,188 |
| 10 | March 28, 2025 13:45 | March 28, 2025 19:15 | 5h 30m | 1,817 | 1,563 |
Outage episodes by size in 2025: 85 reached 100+ customers, 16 reached 1,000+ customers, 0 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 Tehama 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 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
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 ÷ 28,134 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. Tehama County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Tehama 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/tehama-county