County annual report · FIPS 06041
2021 Marin County, CA Power Outage Report
In 2021, customers in Marin County, CA went without power for an average of 7.8 hours, a total of 883K customer-hours (California average 6.6 hours). That ranks 32nd worst of 57 California counties and 956th 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 Marin 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 | October 24, 2021 09:00 | October 29, 2021 05:45 | 4d 20h | 25,757 | 346K |
| 2 | October 6, 2021 13:45 | October 6, 2021 23:00 | 9h 15m | 6,285 | 17K |
| 3 | October 22, 2021 08:15 | October 23, 2021 05:30 | 21h 15m | 6,272 | 7,298 |
| 4 | December 15, 2021 16:15 | December 20, 2021 12:15 | 4d 20h | 5,900 | 41K |
| 5 | December 23, 2021 15:45 | December 24, 2021 12:45 | 21h | 4,688 | 8,794 |
| 6 | February 6, 2021 15:45 | February 7, 2021 00:30 | 8h 45m | 4,297 | 1,409 |
| 7 | August 2, 2021 04:00 | August 3, 2021 10:30 | 1d 6h | 4,018 | 19K |
| 8 | November 4, 2021 08:15 | November 5, 2021 05:30 | 21h 15m | 3,841 | 16K |
| 9 | March 15, 2021 15:00 | March 16, 2021 11:15 | 20h 15m | 3,534 | 7,375 |
| 10 | April 25, 2021 05:45 | April 26, 2021 13:15 | 1d 7h | 3,391 | 12K |
Outage episodes by size in 2021: 177 reached 100+ customers, 40 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 Marin 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 |
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 ÷ 113,044 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. Marin County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Marin 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/marin-county