massoutage

County annual report · FIPS 06075

2025 San Francisco County, CA Power Outage Report

In 2025, customers in San Francisco County, CA went without power for an average of 13.2 hours, a total of 2.8M customer-hours (California average 7.6 hours). That ranks 14th worst of 57 California counties and 582nd of 3,000 nationally.

Summary data CSVJSON
Avg hrs / customer
13.2
209,753 customers
Customer-hours out
2.8M
Peak customers out
131,898
Outages ≥1,000 out
67
5 of 10,000+ · 563 total
Longest outage
7d 22h
began December 20, 2025
Rank in state
14th/57
582nd of 3,000 US

Compared with CA, the US and 2024

San Francisco County, CA average hours without power per customer compared with state and national averages, 2025San Francisco County 13.2 hours, California average 7.6 hours, US average 5.9 hours, San Francisco County, 2024 6.7 hoursSan Francisco CountySan Francisco County13.2hCalifornia averageCalifornia average7.6hUS averageUS average5.9hSan Francisco County, 2024San Francisco County…6.7h
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Average hours without power per customer in 2025; last bar is this county in 2024.

Month by month

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San Francisco County, CA customer-hours without power by month, 2025Jan 70K, Feb 70K, Mar 101K, Apr 55K, May 116K, Jun 181K, Jul 86K, Aug 66K, Sep 78K, Oct 88K, Nov 55K, Dec 1.8M0500k1M1.5M2M70KJan70KFeb101KMar55KApr116KMay181KJun86KJul66KAug78KSep88KOct55KNov1.8MDec
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Customer-hours; December was the worst month.

San Francisco County year over year

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San Francisco County, CA: average hours without power per customer by year2015: no data; 2016: no data; 2017: 0.0h; 2018: 1.6h, coverage 91%; 2019: 4.6h, coverage 93%; 2020: 3.6h, coverage 94%; 2021: 5.1h, coverage 95%; 2022: 3.6h, coverage 95%; 2023: 8.8h; 2024: 6.7h; 2025: 13.2h0510150%50%100%n/a2015n/a20160.0h20171.6h20184.6h20193.6h20205.1h20213.6h20228.8h20236.7h202413.2h2025
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Average hours without power per customer. Line: EAGLE-I coverage, share of customers tracked (right axis).

Coverage line is EAGLE-I's share of California customers tracked each year.

Biggest outages in San Francisco County, 2025

The 10 outage episodes with the most customers out at once. Times are UTC.

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1December 20, 2025 10:45December 28, 2025 08:457d 22h131,8981.7M
2May 19, 2025 19:15May 22, 2025 09:152d 14h123,46946K
3December 7, 2025 04:45December 9, 2025 13:002d 8h16,71520K
4December 28, 2025 15:45December 30, 2025 04:301d 12h11,73331K
5March 13, 2025 23:15March 14, 2025 13:1514h10,6977,576
6March 13, 2025 01:15March 13, 2025 12:1511h9,78717K
7June 6, 2025 08:00June 7, 2025 04:3020h 30m7,70426K
8October 25, 2025 15:15October 26, 2025 17:001d 1h6,4944,124
9October 21, 2025 15:30October 22, 2025 14:0022h 30m5,47013K
10June 23, 2025 14:15June 28, 2025 07:304d 17h5,37073K

Outage episodes by size in 2025: 278 reached 100+ customers, 67 reached 1,000+ customers, 5 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 2025, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Pacific Gas & Electric Co.20248.5 hrs2.154.6 hrs1.82
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 2025; 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, 2025, 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/2025/california/san-francisco-county

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