County annual report · FIPS 06075
2023 San Francisco County, CA Power Outage Report
In 2023, customers in San Francisco County, CA went without power for an average of 8.8 hours, a total of 1.8M customer-hours (California average 7.9 hours). That ranks 34th worst of 57 California counties and 945th 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 San Francisco 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 | March 21, 2023 18:00 | March 25, 2023 03:15 | 3d 9h | 38,880 | 462K |
| 2 | February 21, 2023 16:15 | February 22, 2023 08:45 | 16h 30m | 12,599 | 33K |
| 3 | April 26, 2023 20:30 | April 30, 2023 22:45 | 4d 2h | 11,908 | 171K |
| 4 | January 1, 2023 08:45 | January 7, 2023 19:15 | 6d 10h | 11,017 | 188K |
| 5 | October 5, 2023 18:30 | October 7, 2023 16:00 | 1d 21h | 9,834 | 43K |
| 6 | March 29, 2023 14:15 | March 30, 2023 08:30 | 18h 15m | 9,315 | 27K |
| 7 | April 9, 2023 02:30 | April 9, 2023 20:45 | 18h 15m | 8,114 | 13K |
| 8 | December 27, 2023 11:30 | December 28, 2023 23:30 | 1d 12h | 7,589 | 18K |
| 9 | March 12, 2023 16:30 | March 13, 2023 10:45 | 18h 15m | 7,574 | 9,030 |
| 10 | August 15, 2023 13:45 | August 17, 2023 11:45 | 1d 22h | 6,704 | 9,967 |
Outage episodes by size in 2023: 308 reached 100+ customers, 64 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 San Francisco 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 & County of San Francisco | - | - | - | - | - |
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 ÷ 209,753 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. San Francisco County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), San Francisco 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/san-francisco-county