County annual report · FIPS 06103
2020 Tehama County, CA Power Outage Report
In 2020, customers in Tehama County, CA went without power for an average of 17.3 hours, a total of 486K customer-hours (California average 6.3 hours). That ranks 19th worst of 57 California counties and 489th of 3,019 nationally.
Compared with CA, the US and 2019
Coverage line is EAGLE-I's share of California customers tracked each year.
Biggest outages in Tehama County, 2020
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 12, 2020 20:15 | May 13, 2020 02:30 | 6h 15m | 19,125 | 48K |
| 2 | August 19, 2020 19:45 | August 25, 2020 03:00 | 5d 7h | 7,864 | 13K |
| 3 | October 25, 2020 17:15 | October 27, 2020 21:00 | 2d 3h | 5,329 | 118K |
| 4 | September 28, 2020 01:30 | September 29, 2020 03:15 | 1d 1h | 3,998 | 24K |
| 5 | September 8, 2020 03:15 | September 10, 2020 03:15 | 2d | 3,636 | 43K |
| 6 | May 20, 2020 06:00 | May 21, 2020 13:30 | 1d 7h | 2,919 | 3,754 |
| 7 | November 13, 2020 16:45 | November 14, 2020 05:15 | 12h 30m | 2,720 | 1,489 |
| 8 | October 14, 2020 16:00 | October 17, 2020 02:15 | 2d 10h | 2,460 | 64K |
| 9 | December 17, 2020 05:45 | December 18, 2020 04:00 | 22h 15m | 2,324 | 21K |
| 10 | November 15, 2020 17:45 | November 15, 2020 23:45 | 6h | 2,000 | 2,141 |
Outage episodes by size in 2020: 97 reached 100+ customers, 16 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 2020, 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. | 2020 | 7.4 hrs | 1.34 | 2.3 hrs | 1.04 |
| 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 94% of California's customers in 2020; 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, 2020, 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/2020/california/tehama-county