County annual report · FIPS 20191
2023 Sumner County, KS Power Outage Report
In 2023, customers in Sumner County, KS went without power for an average of 1.1 hours, a total of 9,290 customer-hours (Kansas average 4.3 hours). That ranks 78th worst of 94 Kansas counties and 2660th of 2,977 nationally.
Compared with KS, the US and 2022
Coverage line is EAGLE-I's share of Kansas customers tracked each year.
Biggest outages in Sumner County, 2023
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | June 28, 2023 04:15 | June 28, 2023 09:30 | 5h 15m | 1,041 | 2,089 |
| 2 | August 5, 2023 10:45 | August 7, 2023 21:30 | 2d 10h | 413 | 2,729 |
| 3 | March 20, 2023 19:15 | March 20, 2023 20:45 | 1h 30m | 151 | 227 |
| 4 | March 22, 2023 20:31 | March 22, 2023 21:45 | 1h 14m | 151 | 189 |
| 5 | April 28, 2023 19:00 | April 28, 2023 22:15 | 3h 15m | 148 | 267 |
| 6 | June 2, 2023 06:15 | June 2, 2023 08:45 | 2h 30m | 148 | 236 |
| 7 | June 30, 2023 16:00 | June 30, 2023 17:15 | 1h 15m | 148 | 158 |
| 8 | October 4, 2023 06:30 | October 4, 2023 10:30 | 4h | 116 | 148 |
| 9 | August 14, 2023 04:00 | August 14, 2023 06:15 | 2h 15m | 95 | 213 |
| 10 | December 29, 2023 15:30 | December 29, 2023 18:00 | 2h 30m | 70 | 126 |
Outage episodes by size in 2023: 8 reached 100+ customers, 1 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 Sumner County reported on EIA Form 861 for 2023, 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 | 2023 | 7.8 hrs | 1.41 | 84 min | 0.92 |
| Evergy Kansas South, Inc | 2023 | 1.9 hrs | 1.07 | 84 min | 0.94 |
| Wheatland Electric Coop, Inc | 2023 | 6.0 hrs | 1.26 | 1.7 hrs | 0.86 |
| Sedgwick County El Coop Assn Inc | 2018 | 1.7 hrs | 1.00 | 1.7 hrs | 1.00 |
| Sumner-Cowley Elec Coop, Inc | - | - | - | - | - |
| City of Mulvane - (KS) | - | - | - | - | - |
| City of Oxford - (KS) | - | - | - | - | - |
| City of Wellington - (KS) | - | - | - | - | - |
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 2023; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 8,773 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. Sumner County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Sumner County, KS annual power outage report, 2023, 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/2023/kansas/sumner-county