massoutage

County annual report · FIPS 06025

2020 Imperial County, CA Power Outage Report

In 2020, customers in Imperial County, CA went without power for an average of 12.4 hours, a total of 902K customer-hours (California average 6.3 hours). That ranks 20th worst of 57 California counties and 645th of 3,019 nationally.

Summary data CSVJSON
Avg hrs / customer
12.4
72,691 customers
Customer-hours out
902K
Peak customers out
2,513
Outages ≥1,000 out
5
0 of 10,000+ · 84 total
Longest outage
18d 4h
began May 8, 2020
Rank in state
20th/57
645th of 3,019 US

Compared with CA, the US and 2019

Imperial County, CA average hours without power per customer compared with state and national averages, 2020Imperial County 12.4 hours, California average 6.3 hours, US average 8.7 hours, Imperial County, 2019 3.7 hoursImperial CountyImperial County12.4hCalifornia averageCalifornia average6.3hUS averageUS average8.7hImperial County, 2019Imperial County, 20193.7h
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Average hours without power per customer in 2020; last bar is this county in 2019.

Month by month

CSVJSON
Imperial County, CA customer-hours without power by month, 2020Jan 3,964, Feb 12K, Mar 21K, Apr 4,970, May 703K, Jun 22K, Jul 40K, Aug 29K, Sep 24K, Oct 18K, Nov 7,257, Dec 16K0200k400k600k800k3,964Jan12KFeb21KMar4,970Apr703KMay22KJun40KJul29KAug24KSep18KOct7,257Nov16KDec
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Customer-hours; May was the worst month.

Imperial County year over year

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Imperial County, CA: average hours without power per customer by year2015: 0.1h; 2016: 0.1h; 2017: 0.1h; 2018: 0.0h, coverage 91%; 2019: 3.7h, coverage 93%; 2020: 12.4h, coverage 94%; 2021: 4.0h, coverage 95%; 2022: 2.7h, coverage 95%; 2023: 1.0h; 2024: 0.4h; 2025: 2.7h0510150%50%100%0.1h20150.1h20160.1h20170.0h20183.7h201912.4h20204.0h20212.7h20221.0h20230.4h20242.7h2025
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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 Imperial County, 2020

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1May 8, 2020 21:30May 27, 2020 02:0018d 4h2,513700K
2April 18, 2020 19:15April 18, 2020 19:4530m1,702851
3August 4, 2020 18:00August 4, 2020 18:4545m1,7001,243
4July 14, 2020 00:45July 14, 2020 19:3018h 45m1,57930K
5February 10, 2020 23:15February 13, 2020 12:002d 12h1,2883,453
6October 30, 2020 01:00October 30, 2020 02:301h 30m8701,305
7March 11, 2020 21:15March 12, 2020 21:0023h 45m625985
8April 22, 2020 04:30April 22, 2020 05:301h608608
9June 25, 2020 19:00July 4, 2020 08:458d 13h58121K
10October 22, 2020 23:15October 26, 2020 17:003d 17h4395,121

Outage episodes by size in 2020: 21 reached 100+ customers, 5 reached 1,000+ customers, 0 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 Imperial 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
Southern California Edison Co20203.4 hrs1.061.5 hrs0.87
Imperial Irrigation District202072 min0.6158 min0.58
WAPA-- Western Area Power Administration-----

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 ÷ 72,691 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. Imperial County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Imperial 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/imperial-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON