County annual report · FIPS 06103
2018 Tehama County, CA Power Outage Report
In 2018, customers in Tehama County, CA went without power for an average of 6.6 hours, a total of 186K customer-hours (California average 3.7 hours). That ranks 14th worst of 57 California counties and 826th of 2,798 nationally.
Compared with CA, the US and 2017
Coverage line is EAGLE-I's share of California customers tracked each year.
Biggest outages in Tehama County, 2018
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | June 23, 2018 13:45 | June 25, 2018 22:15 | 2d 8h | 12,143 | 91K |
| 2 | July 19, 2018 03:15 | July 19, 2018 16:00 | 12h 45m | 9,157 | 37K |
| 3 | November 15, 2018 17:15 | November 15, 2018 21:30 | 4h 15m | 4,274 | 1,075 |
| 4 | October 2, 2018 02:45 | October 3, 2018 12:45 | 1d 10h | 3,046 | 5,436 |
| 5 | July 23, 2018 03:15 | July 23, 2018 15:30 | 12h 15m | 2,018 | 4,937 |
| 6 | August 27, 2018 15:30 | August 28, 2018 06:00 | 14h 30m | 1,705 | 3,517 |
| 7 | July 7, 2018 09:15 | July 7, 2018 22:00 | 12h 45m | 1,221 | 4,197 |
| 8 | July 22, 2018 14:00 | July 22, 2018 17:45 | 3h 45m | 953 | 3,574 |
| 9 | November 10, 2018 23:30 | November 11, 2018 05:00 | 5h 30m | 830 | 1,786 |
| 10 | July 30, 2018 03:30 | July 30, 2018 06:00 | 2h 30m | 829 | 1,658 |
Outage episodes by size in 2018: 35 reached 100+ customers, 7 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 2018, 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. | 2018 | 5.0 hrs | 1.18 | 2.1 hrs | 1.08 |
| 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 91% of California's customers in 2018; 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, 2018, 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/2018/california/tehama-county