massoutage

County annual report · FIPS 29095

2021 Jackson County, MO Power Outage Report

In 2021, customers in Jackson County, MO went without power for an average of 6.8 hours, a total of 1.4M customer-hours (Missouri average 4.5 hours). That ranks 32nd worst of 115 Missouri counties and 1053rd of 2,974 nationally.

Summary data CSVJSON
Avg hrs / customer
6.8
202,364 customers
Customer-hours out
1.4M
Peak customers out
42,597
Outages ≥1,000 out
64
5 of 10,000+ · 571 total
Longest outage
16d 10h
began December 14, 2021
Rank in state
32nd/115
1053rd of 2,974 US

Compared with MO, the US and 2020

Jackson County, MO average hours without power per customer compared with state and national averages, 2021Jackson County 6.8 hours, Missouri average 4.5 hours, US average 8.9 hours, Jackson County, 2020 3.8 hoursJackson CountyJackson County6.8hMissouri averageMissouri average4.5hUS averageUS average8.9hJackson County, 2020Jackson County, 20203.8h
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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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Jackson County, MO customer-hours without power by month, 2021Jan 21K, Feb 230K, Mar 46K, Apr 41K, May 89K, Jun 189K, Jul 109K, Aug 236K, Sep 62K, Oct 48K, Nov 34K, Dec 276K0100k200k300k21KJan230KFeb46KMar41KApr89KMay189KJun109KJul236KAug62KSep48KOct34KNov276KDec
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Customer-hours; December was the worst month.

Jackson County year over year

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Jackson County, MO: average hours without power per customer by year2015: 10.3h; 2016: 2.9h; 2017: 14.6h; 2018: 0.2h, coverage 80%; 2019: 17.6h, coverage 95%; 2020: 3.8h, coverage 95%; 2021: 6.8h, coverage 95%; 2022: 5.2h, coverage 95%; 2023: 9.9h; 2024: 15.0h; 2025: 5.9h051015200%50%100%10.3h20152.9h201614.6h20170.2h201817.6h20193.8h20206.8h20215.2h20229.9h202315.0h20245.9h2025
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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 Missouri customers tracked each year.

Biggest outages in Jackson County, 2021

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

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#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1February 14, 2021 17:30February 18, 2021 07:453d 14h42,597186K
2December 14, 2021 14:00December 31, 2021 00:1516d 10h18,941270K
3August 10, 2021 13:45August 17, 2021 03:456d 14h17,369126K
4June 10, 2021 11:30June 14, 2021 06:303d 19h14,701105K
5August 20, 2021 12:15August 24, 2021 23:304d 11h11,82184K
6July 10, 2021 08:00July 12, 2021 04:151d 20h8,13167K
7September 3, 2021 11:15September 5, 2021 08:151d 21h6,52218K
8May 12, 2021 12:15May 13, 2021 05:1517h5,2061,664
9November 24, 2021 06:00November 25, 2021 01:1519h 15m4,6103,471
10October 28, 2021 08:30October 30, 2021 04:451d 20h4,2507,672

Outage episodes by size in 2021: 198 reached 100+ customers, 64 reached 1,000+ customers, 5 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 Jackson 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
Evergy Metro20214.0 hrs1.571.6 hrs0.94
Evergy Kansas Central, Inc20215.8 hrs1.681.7 hrs1.02
Evergy Missouri West20215.2 hrs1.862.3 hrs1.22
West Central Electric Coop Inc - (MO)20213.7 hrs1.561.6 hrs-
City of Independence - (MO)-----

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 Missouri's customers in 2021; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 202,364 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. Jackson County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Jackson County, MO 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/missouri/jackson-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON