massoutage

County annual report · FIPS 20111

2025 Lyon County, KS Power Outage Report

In 2025, customers in Lyon County, KS went without power for an average of 3.6 hours, a total of 36K customer-hours (Kansas average 2.9 hours). That ranks 40th worst of 99 Kansas counties and 1869th of 3,000 nationally.

Summary data CSVJSON
Avg hrs / customer
3.6
9,811 customers
Customer-hours out
36K
Peak customers out
3,409
Outages ≥1,000 out
4
0 of 10,000+ · 476 total
Longest outage
20h 30m
began December 18, 2025
Rank in state
40th/99
1869th of 3,000 US

Compared with KS, the US and 2024

Lyon County, KS average hours without power per customer compared with state and national averages, 2025Lyon County 3.6 hours, Kansas average 2.9 hours, US average 5.9 hours, Lyon County, 2024 5.5 hoursLyon CountyLyon County3.6hKansas averageKansas average2.9hUS averageUS average5.9hLyon County, 2024Lyon County, 20245.5h
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Average hours without power per customer in 2025; last bar is this county in 2024.

Month by month

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Lyon County, KS customer-hours without power by month, 2025Jan 759, Feb 301, Mar 20K, Apr 1,250, May 1,833, Jun 1,570, Jul 3,102, Aug 2,079, Sep 263, Oct 1,075, Nov 1,102, Dec 2,70505k10k15k20k759Jan301Feb20KMar1,250Apr1,833May1,570Jun3,102Jul2,079Aug263Sep1,075Oct1,102Nov2,705Dec
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Customer-hours; March was the worst month.

Lyon County year over year

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Lyon County, KS: average hours without power per customer by year2015: 2.0h; 2016: 2.4h; 2017: 2.0h; 2018: 2.4h, coverage 71%; 2019: 6.0h, coverage 74%; 2020: 1.7h, coverage 79%; 2021: 8.7h, coverage 80%; 2022: 3.2h, coverage 59%; 2023: 3.5h; 2024: 5.5h; 2025: 3.6h02.557.5100%50%100%2.0h20152.4h20162.0h20172.4h20186.0h20191.7h20208.7h20213.2h20223.5h20235.5h20243.6h2025
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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 Lyon County, 2025

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
1March 4, 2025 08:30March 4, 2025 22:3014h3,4092,755
2March 14, 2025 15:30March 15, 2025 07:1515h 45m3,35313K
3April 7, 2025 04:15April 7, 2025 11:157h2,926813
4March 5, 2025 06:30March 6, 2025 01:0018h 30m2,0923,266
5March 5, 2025 00:00March 5, 2025 02:002h909461
6December 28, 2025 13:45December 28, 2025 18:154h 30m9091,384
7August 31, 2025 01:15August 31, 2025 09:007h 45m8901,374
8July 29, 2025 02:15July 29, 2025 03:151h832832
9July 25, 2025 10:45July 26, 2025 01:1514h 30m4801,670
10November 21, 2025 08:00November 21, 2025 12:004h230245

Outage episodes by size in 2025: 17 reached 100+ customers, 4 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 Lyon County reported on EIA Form 861 for 2025, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Evergy Metro20246.0 hrs1.5283 min0.93
Evergy Kansas Central, Inc20245.3 hrs1.651.7 hrs1.05
Flint Hills Rural E C A, Inc20184.9 hrs2.413.9 hrs2.25

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about n/a of Kansas's customers in 2025; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 9,811 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. Lyon County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Lyon County, KS annual power outage report, 2025, 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/2025/kansas/lyon-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON