massoutage

County annual report · FIPS 06095

2023 Solano County, CA Power Outage Report

In 2023, customers in Solano County, CA went without power for an average of 5.3 hours, a total of 1.0M customer-hours (California average 7.9 hours). That ranks 44th worst of 57 California counties and 1405th of 2,977 nationally.

Summary data CSVJSON
Avg hrs / customer
5.3
187,690 customers
Customer-hours out
1.0M
Peak customers out
23,799
Outages ≥1,000 out
44
1 of 10,000+ · 261 total
Longest outage
21d 7h
began May 21, 2023
Rank in state
44th/57
1405th of 2,977 US

Compared with CA, the US and 2022

Solano County, CA average hours without power per customer compared with state and national averages, 2023Solano County 5.3 hours, California average 7.9 hours, US average 7.1 hours, Solano County, 2022 3.4 hoursSolano CountySolano County5.3hCalifornia averageCalifornia average7.9hUS averageUS average7.1hSolano County, 2022Solano County, 20223.4h
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Average hours without power per customer in 2023; last bar is this county in 2022.

Month by month

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Solano County, CA customer-hours without power by month, 2023Jan 228K, Feb 43K, Mar 133K, Apr 57K, May 65K, Jun 67K, Jul 130K, Aug 69K, Sep 78K, Oct 41K, Nov 44K, Dec 45K0100k200k300k228KJan43KFeb133KMar57KApr65KMay67KJun130KJul69KAug78KSep41KOct44KNov45KDec
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Customer-hours; January was the worst month.

Solano County year over year

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Solano County, CA: average hours without power per customer by year2015: no data; 2016: no data; 2017: 0.0h; 2018: 1.5h, coverage 91%; 2019: 16.7h, coverage 93%; 2020: 7.5h, coverage 94%; 2021: 6.7h, coverage 95%; 2022: 3.4h, coverage 95%; 2023: 5.3h; 2024: 9.9h; 2025: 4.5h051015200%50%100%n/a2015n/a20160.0h20171.5h201816.7h20197.5h20206.7h20213.4h20225.3h20239.9h20244.5h2025
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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 Solano County, 2023

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1January 24, 2023 11:30January 25, 2023 02:3015h23,79910K
2March 8, 2023 11:30March 12, 2023 21:154d 9h8,66025K
3March 14, 2023 13:15March 16, 2023 06:301d 17h8,39443K
4July 23, 2023 09:15July 29, 2023 14:156d 5h8,25639K
5March 20, 2023 16:00March 26, 2023 02:305d 10h7,62942K
6January 1, 2023 00:00January 8, 2023 01:457d 1h7,48377K
7January 8, 2023 06:00January 10, 2023 01:001d 19h7,055100K
8January 28, 2023 16:15February 1, 2023 01:003d 8h6,46619K
9May 13, 2023 16:30May 15, 2023 10:301d 18h6,27718K
10February 19, 2023 16:45February 28, 2023 00:008d 7h6,26226K

Outage episodes by size in 2023: 94 reached 100+ customers, 44 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 Solano County reported on EIA Form 861 for 2023, 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.202311.9 hrs2.224.3 hrs1.56
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 n/a of California's customers in 2023; 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, 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/solano-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON