County annual report · FIPS 06045
2021 Mendocino County, CA Power Outage Report
In 2021, customers in Mendocino County, CA went without power for an average of 35.5 hours, a total of 1.4M customer-hours (California average 6.6 hours). That ranks 11th worst of 57 California counties and 256th of 2,974 nationally.
Compared with CA, the US and 2020
Coverage line is EAGLE-I's share of California customers tracked each year.
Biggest outages in Mendocino County, 2021
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | January 27, 2021 00:15 | February 7, 2021 01:30 | 11d 1h | 10,320 | 898K |
| 2 | December 25, 2021 03:30 | December 31, 2021 00:15 | 5d 20h | 3,266 | 113K |
| 3 | March 30, 2021 11:00 | March 30, 2021 20:45 | 9h 45m | 3,111 | 18K |
| 4 | March 9, 2021 04:30 | March 11, 2021 11:30 | 2d 7h | 2,608 | 24K |
| 5 | October 19, 2021 06:30 | October 21, 2021 01:45 | 1d 19h | 2,110 | 17K |
| 6 | January 18, 2021 10:45 | January 21, 2021 01:15 | 2d 14h | 1,761 | 3,696 |
| 7 | September 1, 2021 16:00 | September 1, 2021 22:30 | 6h 30m | 1,756 | 1,362 |
| 8 | November 8, 2021 15:15 | November 11, 2021 23:45 | 3d 8h | 1,754 | 16K |
| 9 | September 12, 2021 21:45 | September 16, 2021 23:30 | 4d 1h | 1,711 | 31K |
| 10 | September 18, 2021 13:15 | September 20, 2021 06:45 | 1d 17h | 1,559 | 13K |
Outage episodes by size in 2021: 103 reached 100+ customers, 17 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 Mendocino County reported on EIA Form 861 for 2021, 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. | 2021 | 10.4 hrs | 1.84 | 3.6 hrs | 1.32 |
| City of Ukiah - (CA) | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 95% of California's customers in 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 39,041 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. Mendocino County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Mendocino County, CA annual power outage report, 2021, 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/2021/california/mendocino-county