County annual report · FIPS 20091
2024 Johnson County, KS Power Outage Report
In 2024, customers in Johnson County, KS went without power for an average of 4.7 hours, a total of 1.4M customer-hours (Kansas average 4.3 hours). That ranks 33rd worst of 94 Kansas counties and 1676th of 2,990 nationally.
Compared with KS, the US and 2023
Coverage line is EAGLE-I's share of Kansas customers tracked each year.
Biggest outages in Johnson County, 2024
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 26, 2024 03:30 | May 30, 2024 07:00 | 4d 3h | 39,563 | 645K |
| 2 | May 20, 2024 03:45 | May 23, 2024 03:15 | 2d 23h | 24,659 | 199K |
| 3 | August 1, 2024 03:45 | August 3, 2024 02:45 | 1d 23h | 8,952 | 63K |
| 4 | January 9, 2024 07:15 | January 11, 2024 05:45 | 1d 22h | 8,915 | 83K |
| 5 | July 14, 2024 10:45 | July 17, 2024 00:45 | 2d 14h | 7,997 | 21K |
| 6 | May 7, 2024 03:15 | May 7, 2024 23:15 | 20h | 6,313 | 14K |
| 7 | July 1, 2024 13:45 | July 4, 2024 04:45 | 2d 15h | 5,968 | 35K |
| 8 | June 26, 2024 07:00 | June 27, 2024 04:15 | 21h 15m | 4,771 | 24K |
| 9 | October 28, 2024 18:15 | October 31, 2024 20:45 | 3d 2h | 3,884 | 21K |
| 10 | March 3, 2024 13:00 | March 4, 2024 04:30 | 15h 30m | 3,673 | 6,795 |
Outage episodes by size in 2024: 193 reached 100+ customers, 55 reached 1,000+ customers, 2 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 Johnson County reported on EIA Form 861 for 2024, 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 | 2024 | 6.0 hrs | 1.52 | 83 min | 0.93 |
| Evergy Kansas Central, Inc | 2024 | 5.3 hrs | 1.65 | 1.7 hrs | 1.05 |
| City of Gardner - (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 2024; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 296,663 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. Johnson County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Johnson County, KS annual power outage report, 2024, 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/2024/kansas/johnson-county