massoutage

County annual report · FIPS 06095

2020 Solano County, CA Power Outage Report

In 2020, customers in Solano County, CA went without power for an average of 7.5 hours, a total of 1.4M customer-hours (California average 6.3 hours). That ranks 27th worst of 57 California counties and 1017th of 3,019 nationally.

Summary data CSVJSON
Avg hrs / customer
7.5
187,690 customers
Customer-hours out
1.4M
Peak customers out
36,368
Outages ≥1,000 out
38
3 of 10,000+ · 626 total
Longest outage
17d 5h
began August 30, 2020
Rank in state
27th/57
1017th of 3,019 US

Compared with CA, the US and 2019

Solano County, CA average hours without power per customer compared with state and national averages, 2020Solano County 7.5 hours, California average 6.3 hours, US average 8.7 hours, Solano County, 2019 16.7 hoursSolano CountySolano County7.5hCalifornia averageCalifornia average6.3hUS averageUS average8.7hSolano County, 2019Solano County, 201916.7h
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Average hours without power per customer in 2020; last bar is this county in 2019.

Month by month

CSVJSON
Solano County, CA customer-hours without power by month, 2020Jan 25K, Feb 63K, Mar 38K, Apr 17K, May 48K, Jun 221K, Jul 26K, Aug 687K, Sep 61K, Oct 153K, Nov 39K, Dec 33K0200k400k600k800k25KJan63KFeb38KMar17KApr48KMay221KJun26KJul687KAug61KSep153KOct39KNov33KDec
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Customer-hours; August 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, 2020

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1June 2, 2020 14:15June 3, 2020 09:3019h 15m36,368173K
2August 14, 2020 01:00August 30, 2020 21:3016d 20h22,820675K
3February 9, 2020 09:00February 11, 2020 23:152d 14h10,70343K
4October 25, 2020 01:00October 30, 2020 01:305d6,010103K
5March 15, 2020 10:45March 16, 2020 11:151d5,37621K
6February 27, 2020 17:15February 28, 2020 05:1512h5,1953,538
7April 28, 2020 15:00April 30, 2020 04:451d 13h4,9435,871
8June 27, 2020 09:00June 28, 2020 10:301d 1h4,7014,752
9December 21, 2020 21:15December 30, 2020 15:008d 17h4,47319K
10January 16, 2020 16:30January 17, 2020 07:3015h4,2587,518

Outage episodes by size in 2020: 171 reached 100+ customers, 38 reached 1,000+ customers, 3 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 2020, 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.20207.4 hrs1.342.3 hrs1.04
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 94% of California's customers in 2020; 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, 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/solano-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON