County annual report · FIPS 20111
2021 Lyon County, KS Power Outage Report
In 2021, customers in Lyon County, KS went without power for an average of 8.7 hours, a total of 85K customer-hours (Kansas average 4.0 hours). That ranks 24th worst of 94 Kansas counties and 877th of 2,974 nationally.
Compared with KS, the US and 2020
Coverage line is EAGLE-I's share of Kansas customers tracked each year.
Biggest outages in Lyon County, 2021
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | April 22, 2021 23:15 | April 22, 2021 23:45 | 30m | 7,082 | 3,541 |
| 2 | December 15, 2021 18:45 | December 18, 2021 06:15 | 2d 11h | 3,256 | 35K |
| 3 | February 16, 2021 13:00 | February 16, 2021 20:45 | 7h 45m | 2,743 | 1,832 |
| 4 | November 14, 2021 18:30 | November 14, 2021 20:45 | 2h 15m | 2,226 | 567 |
| 5 | June 25, 2021 19:45 | June 26, 2021 10:15 | 14h 30m | 1,934 | 4,707 |
| 6 | September 4, 2021 03:15 | September 4, 2021 17:45 | 14h 30m | 1,916 | 5,309 |
| 7 | September 3, 2021 06:15 | September 3, 2021 09:15 | 3h | 1,760 | 3,346 |
| 8 | September 25, 2021 17:00 | September 25, 2021 23:00 | 6h | 1,717 | 4,817 |
| 9 | April 7, 2021 07:45 | April 7, 2021 10:45 | 3h | 1,715 | 3,862 |
| 10 | October 18, 2021 15:15 | October 18, 2021 18:45 | 3h 30m | 1,172 | 1,822 |
Outage episodes by size in 2021: 23 reached 100+ customers, 10 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 2021, or their most recent earlier filing. Utility-wide figures, not county-specific.
| Utility | EIA year | SAIDI | SAIFI | SAIDI excl. major events | SAIFI excl. major events |
|---|---|---|---|---|---|
| Evergy Metro | 2021 | 4.0 hrs | 1.57 | 1.6 hrs | 0.94 |
| Evergy Kansas Central, Inc | 2021 | 5.8 hrs | 1.68 | 1.7 hrs | 1.02 |
| Flint Hills Rural E C A, Inc | 2018 | 4.9 hrs | 2.41 | 3.9 hrs | 2.25 |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 80% of Kansas's customers in 2021; 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, 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/lyon-county