County annual report · FIPS 06103
2023 Tehama County, CA Power Outage Report
In 2023, customers in Tehama County, CA went without power for an average of 18.6 hours, a total of 524K customer-hours (California average 7.9 hours). That ranks 19th worst of 57 California counties and 446th of 2,977 nationally.
Compared with CA, the US and 2022
Coverage line is EAGLE-I's share of California customers tracked each year.
Biggest outages in Tehama County, 2023
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | February 24, 2023 04:00 | February 28, 2023 04:45 | 4d | 15,911 | 167K |
| 2 | May 25, 2023 16:15 | May 27, 2023 13:00 | 1d 20h | 8,123 | 26K |
| 3 | June 12, 2023 03:30 | June 13, 2023 02:15 | 22h 45m | 6,267 | 9,078 |
| 4 | May 6, 2023 20:00 | May 7, 2023 07:45 | 11h 45m | 6,034 | 3,273 |
| 5 | September 13, 2023 05:45 | September 13, 2023 12:15 | 6h 30m | 3,877 | 14K |
| 6 | May 23, 2023 23:15 | May 24, 2023 05:15 | 6h | 3,711 | 5,397 |
| 7 | May 8, 2023 14:30 | May 9, 2023 10:15 | 19h 45m | 3,636 | 2,012 |
| 8 | February 1, 2023 14:30 | February 2, 2023 00:00 | 9h 30m | 3,492 | 4,643 |
| 9 | June 6, 2023 13:45 | June 6, 2023 20:00 | 6h 15m | 3,443 | 13K |
| 10 | January 4, 2023 23:45 | January 6, 2023 22:15 | 1d 22h | 3,234 | 17K |
Outage episodes by size in 2023: 97 reached 100+ customers, 25 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 Tehama County reported on EIA Form 861 for 2023, 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. | 2023 | 11.9 hrs | 2.22 | 4.3 hrs | 1.56 |
| 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 2023; 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, 2023, 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/2023/california/tehama-county