County annual report · FIPS 06075
2020 San Francisco County, CA Power Outage Report
In 2020, customers in San Francisco County, CA went without power for an average of 3.6 hours, a total of 745K customer-hours (California average 6.3 hours). That ranks 48th worst of 57 California counties and 1716th of 3,019 nationally.
Compared with CA, the US and 2019
Coverage line is EAGLE-I's share of California customers tracked each year.
Biggest outages in San Francisco County, 2020
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 12, 2020 17:15 | February 13, 2020 14:15 | 21h | 10,065 | 15K |
| 2 | June 18, 2020 12:15 | June 18, 2020 14:45 | 2h 30m | 9,134 | 9,128 |
| 3 | August 9, 2020 06:15 | August 9, 2020 15:15 | 9h | 8,858 | 5,924 |
| 4 | April 30, 2020 03:45 | April 30, 2020 22:30 | 18h 45m | 8,707 | 21K |
| 5 | July 21, 2020 13:00 | July 23, 2020 02:45 | 1d 13h | 8,625 | 8,430 |
| 6 | August 14, 2020 19:15 | August 17, 2020 17:15 | 2d 22h | 8,347 | 33K |
| 7 | August 2, 2020 04:00 | August 2, 2020 23:45 | 19h 45m | 8,144 | 2,763 |
| 8 | May 1, 2020 16:30 | May 3, 2020 03:00 | 1d 10h | 8,004 | 23K |
| 9 | July 14, 2020 13:15 | July 15, 2020 02:30 | 13h 15m | 7,905 | 8,203 |
| 10 | November 14, 2020 01:00 | November 14, 2020 05:00 | 4h | 7,449 | 10K |
Outage episodes by size in 2020: 308 reached 100+ customers, 62 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 San Francisco County reported on EIA Form 861 for 2020, 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. | 2020 | 7.4 hrs | 1.34 | 2.3 hrs | 1.04 |
| 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 94% of California's customers in 2020; 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, 2020, 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/2020/california/san-francisco-county