County annual report · FIPS 06095
2021 Solano County, CA Power Outage Report
In 2021, customers in Solano County, CA went without power for an average of 6.7 hours, a total of 1.3M customer-hours (California average 6.6 hours). That ranks 34th worst of 57 California counties and 1068th 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 Solano 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 02:00 | February 1, 2021 03:00 | 5d 1h | 21,975 | 319K |
| 2 | September 10, 2021 01:00 | September 12, 2021 05:15 | 2d 4h | 14,449 | 66K |
| 3 | May 31, 2021 18:00 | June 2, 2021 02:15 | 1d 8h | 10,955 | 47K |
| 4 | April 25, 2021 23:45 | April 26, 2021 09:45 | 10h | 10,901 | 51K |
| 5 | January 24, 2021 08:15 | January 24, 2021 11:15 | 3h | 9,552 | 3,049 |
| 6 | February 23, 2021 16:00 | February 24, 2021 08:00 | 16h | 7,636 | 7,008 |
| 7 | October 10, 2021 20:15 | October 14, 2021 13:30 | 3d 17h | 7,308 | 82K |
| 8 | September 4, 2021 12:45 | September 4, 2021 14:15 | 1h 30m | 6,913 | 1,731 |
| 9 | October 17, 2021 14:15 | October 18, 2021 17:30 | 1d 3h | 6,507 | 54K |
| 10 | June 14, 2021 09:15 | June 16, 2021 03:15 | 1d 18h | 6,040 | 8,844 |
Outage episodes by size in 2021: 144 reached 100+ customers, 50 reached 1,000+ customers, 4 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 Solano 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 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| Pittsburg Power Company | - | - | - | - | - |
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 ÷ 187,690 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. Solano County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Solano 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/solano-county