County annual report · FIPS 20021
2021 Cherokee County, KS Power Outage Report
In 2021, customers in Cherokee County, KS went without power for an average of 12.2 hours, a total of 36K customer-hours (Kansas average 4.0 hours). That ranks 15th worst of 94 Kansas counties and 678th 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 Cherokee 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 | May 17, 2021 20:15 | May 17, 2021 21:00 | 45m | 1,328 | 996 |
| 2 | January 11, 2021 16:00 | January 11, 2021 16:15 | 15m | 1,198 | 300 |
| 3 | June 8, 2021 15:00 | June 8, 2021 15:30 | 30m | 1,003 | 307 |
| 4 | May 28, 2021 23:30 | May 29, 2021 00:00 | 30m | 961 | 276 |
| 5 | April 1, 2021 15:00 | April 1, 2021 17:15 | 2h 15m | 764 | 1,546 |
| 6 | June 6, 2021 12:00 | June 6, 2021 14:15 | 2h 15m | 657 | 547 |
| 7 | June 12, 2021 01:00 | June 13, 2021 10:30 | 1d 9h | 611 | 5,372 |
| 8 | January 1, 2021 08:00 | January 1, 2021 22:00 | 14h | 577 | 2,815 |
| 9 | December 18, 2021 00:00 | December 19, 2021 04:15 | 1d 4h | 552 | 16K |
| 10 | July 27, 2021 19:00 | July 27, 2021 19:15 | 15m | 500 | 125 |
Outage episodes by size in 2021: 29 reached 100+ customers, 3 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 Cherokee 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 Kansas South, Inc | 2021 | 2.8 hrs | 1.33 | 1.9 hrs | 1.10 |
| Empire District Electric Co | 2021 | 2.4 hrs | 1.25 | 88 min | 0.98 |
| Heartland Rural Elec Coop, Inc | 2018 | 2.8 hrs | 1.48 | 2.5 hrs | 1.42 |
| Twin Valley Electric Coop Inc | 2018 | 2.8 hrs | 0.17 | 1.8 hrs | 0.15 |
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 ÷ 2,982 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. Cherokee County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Cherokee 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/cherokee-county