County annual report · FIPS 06045
2023 Mendocino County, CA Power Outage Report
In 2023, customers in Mendocino County, CA went without power for an average of 48.5 hours, a total of 1.9M customer-hours (California average 7.9 hours). That ranks 9th worst of 57 California counties and 110th 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 Mendocino 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 | May 2, 2023 15:30 | May 4, 2023 02:00 | 1d 10h | 15,851 | 36K |
| 2 | February 21, 2023 16:45 | March 17, 2023 03:45 | 23d 11h | 14,999 | 634K |
| 3 | January 4, 2023 10:00 | January 10, 2023 01:00 | 5d 15h | 10,376 | 818K |
| 4 | June 24, 2023 14:45 | June 24, 2023 21:15 | 6h 30m | 6,939 | 8,843 |
| 5 | September 18, 2023 14:15 | September 19, 2023 03:30 | 13h 15m | 3,819 | 3,244 |
| 6 | August 21, 2023 13:30 | August 21, 2023 21:00 | 7h 30m | 3,816 | 7,973 |
| 7 | October 27, 2023 02:15 | October 27, 2023 04:15 | 2h | 3,802 | 5,716 |
| 8 | January 10, 2023 12:45 | January 10, 2023 19:00 | 6h 15m | 3,664 | 22K |
| 9 | October 10, 2023 00:00 | October 10, 2023 22:15 | 22h 15m | 3,475 | 7,518 |
| 10 | November 18, 2023 18:45 | November 19, 2023 05:15 | 10h 30m | 3,252 | 15K |
Outage episodes by size in 2023: 119 reached 100+ customers, 28 reached 1,000+ customers, 3 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 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 |
| 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 n/a of California's customers in 2023; 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, 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/mendocino-county