massoutage

County annual report · FIPS 06029

2021 Kern County, CA Power Outage Report

In 2021, customers in Kern County, CA went without power for an average of 3.9 hours, a total of 1.5M customer-hours (California average 6.6 hours). That ranks 46th worst of 57 California counties and 1569th of 2,974 nationally.

Summary data CSVJSON
Avg hrs / customer
3.9
395,015 customers
Customer-hours out
1.5M
Peak customers out
10,006
Outages ≥1,000 out
86
1 of 10,000+ · 354 total
Longest outage
16d 18h
began September 28, 2021
Rank in state
46th/57
1569th of 2,974 US

Compared with CA, the US and 2020

Kern County, CA average hours without power per customer compared with state and national averages, 2021Kern County 3.9 hours, California average 6.6 hours, US average 8.9 hours, Kern County, 2020 4.5 hoursKern CountyKern County3.9hCalifornia averageCalifornia average6.6hUS averageUS average8.9hKern County, 2020Kern County, 20204.5h
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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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Kern County, CA customer-hours without power by month, 2021Jan 139K, Feb 82K, Mar 62K, Apr 58K, May 61K, Jun 109K, Jul 201K, Aug 173K, Sep 182K, Oct 224K, Nov 117K, Dec 129K0100k200k300k139KJan82KFeb62KMar58KApr61KMay109KJun201KJul173KAug182KSep224KOct117KNov129KDec
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Customer-hours; October was the worst month.

Kern County year over year

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Kern County, CA: average hours without power per customer by year2015: 0.8h; 2016: 1.2h; 2017: 1.2h; 2018: 2.0h, coverage 91%; 2019: 3.8h, coverage 93%; 2020: 4.5h, coverage 94%; 2021: 3.9h, coverage 95%; 2022: 6.1h, coverage 95%; 2023: 4.2h; 2024: 4.6h; 2025: 5.6h024680%50%100%0.8h20151.2h20161.2h20172.0h20183.8h20194.5h20203.9h20216.1h20224.2h20234.6h20245.6h2025
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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 Kern County, 2021

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1September 6, 2021 17:15September 12, 2021 12:455d 19h10,00664K
2October 25, 2021 13:45October 28, 2021 06:152d 16h9,86478K
3July 8, 2021 15:30July 18, 2021 05:309d 14h8,589129K
4August 27, 2021 13:30September 1, 2021 12:304d 23h7,07134K
5December 13, 2021 14:15December 16, 2021 11:302d 21h6,75961K
6February 7, 2021 23:00February 9, 2021 13:151d 14h6,41223K
7January 10, 2021 14:00January 11, 2021 13:1523h 15m6,38726K
8April 21, 2021 08:15April 22, 2021 01:0016h 45m5,48611K
9August 23, 2021 14:00August 26, 2021 10:002d 20h5,43540K
10February 3, 2021 15:15February 6, 2021 06:302d 15h5,40914K

Outage episodes by size in 2021: 190 reached 100+ customers, 86 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 Kern 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

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 ÷ 395,015 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. Kern County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Kern 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/kern-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON