massoutage

County annual report · FIPS 20209

2021 Wyandotte County, KS Power Outage Report

In 2021, customers in Wyandotte County, KS went without power for an average of 15.6 hours, a total of 538K customer-hours (Kansas average 4.0 hours). That ranks 8th worst of 94 Kansas counties and 546th of 2,974 nationally.

Summary data CSVJSON
Avg hrs / customer
15.6
34,391 customers
Customer-hours out
538K
Peak customers out
13,650
Outages ≥1,000 out
51
2 of 10,000+ · 1,104 total
Longest outage
3d 17h
began August 21, 2021
Rank in state
8th/94
546th of 2,974 US

Compared with KS, the US and 2020

Wyandotte County, KS average hours without power per customer compared with state and national averages, 2021Wyandotte County 15.6 hours, Kansas average 4.0 hours, US average 8.9 hours, Wyandotte County, 2020 6.2 hoursWyandotte CountyWyandotte County15.6hKansas averageKansas average4.0hUS averageUS average8.9hWyandotte County, 2020Wyandotte County, 20…6.2h
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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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Wyandotte County, KS customer-hours without power by month, 2021Jan 2,466, Feb 25K, Mar 20K, Apr 9,560, May 35K, Jun 101K, Jul 16K, Aug 200K, Sep 20K, Oct 7,811, Nov 16K, Dec 85K050k100k150k200k2,466Jan25KFeb20KMar9,560Apr35KMay101KJun16KJul200KAug20KSep7,811Oct16KNov85KDec
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Customer-hours; August was the worst month.

Wyandotte County year over year

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Wyandotte County, KS: average hours without power per customer by year2015: 21.4h; 2016: 6.6h; 2017: 21.0h; 2018: 6.4h, coverage 71%; 2019: 9.0h, coverage 74%; 2020: 6.2h, coverage 79%; 2021: 15.6h, coverage 80%; 2022: 7.8h, coverage 59%; 2023: 29.5h; 2024: 15.1h; 2025: 10.4h01020300%50%100%21.4h20156.6h201621.0h20176.4h20189.0h20196.2h202015.6h20217.8h202229.5h202315.1h202410.4h2025
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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 Wyandotte 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
1August 21, 2021 03:45August 24, 2021 20:453d 17h13,650171K
2June 11, 2021 17:00June 14, 2021 04:152d 11h10,90776K
3June 10, 2021 20:15June 11, 2021 12:1516h9,97112K
4February 16, 2021 05:00February 16, 2021 23:4518h 45m8,41014K
5December 15, 2021 14:45December 19, 2021 03:153d 12h5,47077K
6September 5, 2021 13:00September 6, 2021 01:0012h4,2422,052
7June 17, 2021 11:15June 17, 2021 15:003h 45m3,723954
8March 9, 2021 13:30March 10, 2021 04:1514h 45m3,3824,848
9March 24, 2021 17:15March 24, 2021 18:301h 15m3,269881
10May 23, 2021 14:45May 23, 2021 18:303h 45m3,0952,378

Outage episodes by size in 2021: 171 reached 100+ customers, 51 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 Wyandotte 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
City of Kansas City - (KS)20216.6 hrs2.462.6 hrs1.88

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 ÷ 34,391 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. Wyandotte County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Wyandotte 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/wyandotte-county

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