massoutage

County annual report · FIPS 20017

2021 Chase County, KS Power Outage Report

In 2021, customers in Chase County, KS went without power for an average of 21.7 hours, a total of 15K customer-hours (Kansas average 4.0 hours). That ranks 4th worst of 94 Kansas counties and 394th of 2,974 nationally.

Summary data CSVJSON
Avg hrs / customer
21.7
699 customers
Customer-hours out
15K
Peak customers out
1,029
Outages ≥1,000 out
2
0 of 10,000+ · 80 total
Longest outage
1d
began December 15, 2021
Rank in state
4th/94
394th of 2,974 US

Compared with KS, the US and 2020

Chase County, KS average hours without power per customer compared with state and national averages, 2021Chase County 21.7 hours, Kansas average 4.0 hours, US average 8.9 hours, Chase County, 2020 4.3 hoursChase CountyChase County21.7hKansas averageKansas average4.0hUS averageUS average8.9hChase County, 2020Chase County, 20204.3h
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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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Chase County, KS customer-hours without power by month, 2021Jan 240, Feb 3,645, Mar 128, Apr 208, May 42, Jun 351, Jul 33, Aug 362, Sep 216, Oct 1,740, Nov 6, Dec 8,20202.5k5k7.5k10k240Jan3,645Feb128Mar208Apr42May351Jun33Jul362Aug216Sep1,740Oct6Nov8,202Dec
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Customer-hours; December was the worst month.

Chase County year over year

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Chase County, KS: average hours without power per customer by year2015: 6.1h; 2016: 3.3h; 2017: 5.8h; 2018: 3.9h, coverage 71%; 2019: 96.1h, coverage 74%; 2020: 4.3h, coverage 79%; 2021: 21.7h, coverage 80%; 2022: 5.2h, coverage 59%; 2023: 17.8h; 2024: 7.1h; 2025: 6.2h02550751000%50%100%6.1h20153.3h20165.8h20173.9h201896.1h20194.3h202021.7h20215.2h202217.8h20237.1h20246.2h2025
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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 Kansas customers tracked each year.

Biggest outages in Chase 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 22, 2021 20:45February 22, 2021 22:151h 30m1,0291,544
2February 28, 2021 20:30February 28, 2021 22:151h 45m1,0291,801
3October 30, 2021 00:30October 30, 2021 04:003h 30m6391,426
4December 15, 2021 19:15December 16, 2021 19:301d5627,725
5April 22, 2021 23:15April 22, 2021 23:4530m329165
6February 16, 2021 10:45February 16, 2021 15:154h 30m105242
7October 30, 2021 19:00October 30, 2021 19:4545m9468
8December 11, 2021 06:15December 11, 2021 08:302h 15m78176
9January 7, 2021 21:15January 7, 2021 22:151h7272
10October 11, 2021 02:45October 11, 2021 04:301h 45m65114

Outage episodes by size in 2021: 6 reached 100+ customers, 2 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 Chase County reported on EIA Form 861 for 2021, or their most recent earlier filing. Utility-wide figures, not county-specific.

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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
Flint Hills Rural E C A, Inc20184.9 hrs2.413.9 hrs2.25
Butler Rural El Coop Assn, Inc - (KS)20182.5 hrs1.422.5 hrs1.42

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 80% of Kansas's customers in 2021; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 699 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. Chase County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Chase County, KS 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/kansas/chase-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON