massoutage

County annual report · FIPS 06019

2021 Fresno County, CA Power Outage Report

In 2021, customers in Fresno County, CA went without power for an average of 3.8 hours, a total of 1.7M customer-hours (California average 6.6 hours). That ranks 48th worst of 57 California counties and 1598th of 2,974 nationally.

Summary data CSVJSON
Avg hrs / customer
3.8
458,084 customers
Customer-hours out
1.7M
Peak customers out
14,099
Outages ≥1,000 out
72
2 of 10,000+ · 204 total
Longest outage
22d 12h
began January 24, 2021
Rank in state
48th/57
1598th of 2,974 US

Compared with CA, the US and 2020

Fresno County, CA average hours without power per customer compared with state and national averages, 2021Fresno County 3.8 hours, California average 6.6 hours, US average 8.9 hours, Fresno County, 2020 6.2 hoursFresno CountyFresno County3.8hCalifornia averageCalifornia average6.6hUS averageUS average8.9hFresno County, 2020Fresno County, 20206.2h
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Average hours without power per customer in 2021; last bar is this county in 2020.

Month by month

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Fresno County, CA customer-hours without power by month, 2021Jan 268K, Feb 56K, Mar 122K, Apr 66K, May 101K, Jun 193K, Jul 78K, Aug 130K, Sep 112K, Oct 382K, Nov 68K, Dec 153K0100k200k300k400k268KJan56KFeb122KMar66KApr101KMay193KJun78KJul130KAug112KSep382KOct68KNov153KDec
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Customer-hours; October was the worst month.

Fresno County year over year

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Fresno County, CA: average hours without power per customer by year2015: 0.1h; 2016: 0.1h; 2017: 0.3h; 2018: 1.1h, coverage 91%; 2019: 2.6h, coverage 93%; 2020: 6.2h, coverage 94%; 2021: 3.8h, coverage 95%; 2022: 3.4h, coverage 95%; 2023: 4.6h; 2024: 3.8h; 2025: 3.2h024680%50%100%0.1h20150.1h20160.3h20171.1h20182.6h20196.2h20203.8h20213.4h20224.6h20233.8h20243.2h2025
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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 Fresno County, 2021

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1October 8, 2021 11:45October 17, 2021 07:158d 19h14,099258K
2March 4, 2021 15:30March 5, 2021 03:3012h12,09735K
3January 18, 2021 16:15January 22, 2021 14:003d 21h7,666133K
4June 16, 2021 14:45June 22, 2021 04:005d 13h7,268104K
5October 23, 2021 13:45October 28, 2021 11:004d 21h6,88574K
6July 8, 2021 21:15July 23, 2021 14:0014d 16h6,28142K
7May 9, 2021 15:45May 21, 2021 12:3011d 20h6,11756K
8September 22, 2021 12:00September 24, 2021 12:002d5,75020K
9June 22, 2021 04:45June 24, 2021 12:302d 7h5,51516K
10May 31, 2021 16:00June 5, 2021 05:154d 13h5,45541K

Outage episodes by size in 2021: 130 reached 100+ customers, 72 reached 1,000+ customers, 2 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 Fresno County reported on EIA Form 861 for 2021, 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.202110.4 hrs1.843.6 hrs1.32
Southern California Edison Co20213.0 hrs1.111.7 hrs0.96
WAPA-- Western Area Power Administration-----
Kings River Conservation Dist-----

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 95% of California's customers in 2021; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 458,084 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. Fresno County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Fresno County, CA annual power outage report, 2021, 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/2021/california/fresno-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON