massoutage

County annual report · FIPS 20087

2020 Jefferson County, KS Power Outage Report

In 2020, customers in Jefferson County, KS went without power for an average of 3.4 hours, a total of 36K customer-hours (Kansas average 1.6 hours). That ranks 28th worst of 94 Kansas counties and 1745th of 3,019 nationally.

Summary data CSVJSON
Avg hrs / customer
3.4
10,486 customers
Customer-hours out
36K
Peak customers out
2,770
Outages ≥1,000 out
2
0 of 10,000+ · 320 total
Longest outage
2d
began April 25, 2020
Rank in state
28th/94
1745th of 3,019 US

Compared with KS, the US and 2019

Jefferson County, KS average hours without power per customer compared with state and national averages, 2020Jefferson County 3.4 hours, Kansas average 1.6 hours, US average 8.7 hours, Jefferson County, 2019 7.0 hoursJefferson CountyJefferson County3.4hKansas averageKansas average1.6hUS averageUS average8.7hJefferson County, 2019Jefferson County, 20…7.0h
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Average hours without power per customer in 2020; last bar is this county in 2019.

Month by month

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Jefferson County, KS customer-hours without power by month, 2020Jan 2,545, Feb 51, Mar 1,807, Apr 2,218, May 4,294, Jun 14K, Jul 2,975, Aug 362, Sep 549, Oct 181, Nov 5,518, Dec 1,14505k10k15k2,545Jan51Feb1,807Mar2,218Apr4,294May14KJun2,975Jul362Aug549Sep181Oct5,518Nov1,145Dec
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Customer-hours; June was the worst month.

Jefferson County year over year

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Jefferson County, KS: average hours without power per customer by year2015: 1.8h; 2016: 1.2h; 2017: 2.3h; 2018: 3.5h, coverage 71%; 2019: 7.0h, coverage 74%; 2020: 3.4h, coverage 79%; 2021: 6.7h, coverage 80%; 2022: 1.8h, coverage 59%; 2023: 4.9h; 2024: 3.4h; 2025: 1.8h024680%50%100%1.8h20151.2h20162.3h20173.5h20187.0h20193.4h20206.7h20211.8h20224.9h20233.4h20241.8h2025
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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 Jefferson County, 2020

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1June 4, 2020 06:15June 4, 2020 18:4512h 30m2,7707,600
2November 10, 2020 10:15November 10, 2020 20:3010h 15m1,3034,475
3June 19, 2020 16:15June 19, 2020 23:157h7234,516
4May 24, 2020 09:15May 24, 2020 18:008h 45m6231,675
5June 4, 2020 02:30June 4, 2020 05:152h 45m515905
6July 9, 2020 08:15July 9, 2020 13:004h 45m5101,352
7May 25, 2020 20:30May 25, 2020 22:151h 45m497623
8January 10, 2020 20:45January 11, 2020 06:159h 30m4782,239
9April 5, 2020 15:30April 5, 2020 19:003h 30m4541,587
10November 15, 2020 03:30November 15, 2020 10:307h377775

Outage episodes by size in 2020: 19 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 Jefferson 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
Evergy Metro20201.5 hrs0.8472 min0.76
Evergy Kansas Central, Inc20201.8 hrs1.041.6 hrs1.00
FreeState Electric Coop20205.2 hrs-5.2 hrs-
Brown-Atchison E C A Inc-----

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 79% of Kansas's customers in 2020; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 10,486 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. Jefferson County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Jefferson County, KS 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/kansas/jefferson-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON