County annual report · FIPS 06097
2024 Sonoma County, CA Power Outage Report
In 2024, customers in Sonoma County, CA went without power for an average of 17.5 hours, a total of 3.7M customer-hours (California average 6.1 hours). That ranks 22nd worst of 57 California counties and 587th of 2,990 nationally.
Compared with CA, the US and 2023
Coverage line is EAGLE-I's share of California customers tracked each year.
Biggest outages in Sonoma County, 2024
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | February 4, 2024 07:30 | February 13, 2024 12:30 | 9d 5h | 51,885 | 2.2M |
| 2 | March 1, 2024 17:45 | March 6, 2024 06:30 | 4d 12h | 28,498 | 87K |
| 3 | June 26, 2024 09:30 | June 27, 2024 05:00 | 19h 30m | 17,528 | 35K |
| 4 | May 17, 2024 02:15 | May 17, 2024 10:15 | 8h | 12,848 | 23K |
| 5 | February 17, 2024 17:30 | February 24, 2024 08:00 | 6d 14h | 12,156 | 43K |
| 6 | December 13, 2024 08:30 | December 17, 2024 05:30 | 3d 21h | 11,403 | 94K |
| 7 | September 26, 2024 08:15 | September 27, 2024 02:00 | 17h 45m | 8,248 | 2,819 |
| 8 | April 23, 2024 14:30 | April 24, 2024 05:15 | 14h 45m | 6,414 | 5,239 |
| 9 | January 29, 2024 15:45 | January 31, 2024 11:00 | 1d 19h | 5,943 | 38K |
| 10 | October 15, 2024 14:00 | October 22, 2024 04:00 | 6d 14h | 5,886 | 84K |
Outage episodes by size in 2024: 216 reached 100+ customers, 81 reached 1,000+ customers, 6 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 Sonoma County reported on EIA Form 861 for 2024, 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. | 2024 | 8.5 hrs | 2.15 | 4.6 hrs | 1.82 |
| City of Healdsburg - (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 2024; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 214,127 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. Sonoma County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Sonoma County, CA annual power outage report, 2024, 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/2024/california/sonoma-county