County annual report · FIPS 20091
2017 Johnson County, KS Power Outage Report
In 2017, customers in Johnson County, KS went without power for an average of 6.6 hours, a total of 2.0M customer-hours (Kansas average 3.9 hours). That ranks 19th worst of 80 Kansas counties and 797th of 2,786 nationally.
Compared with KS, the US and 2016
Coverage line is EAGLE-I's share of Kansas customers tracked each year.
Biggest outages in Johnson County, 2017
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | July 23, 2017 02:15 | July 29, 2017 10:30 | 6d 8h | 48,945 | 1.2M |
| 2 | June 17, 2017 05:30 | June 22, 2017 03:15 | 4d 21h | 17,011 | 402K |
| 3 | March 6, 2017 14:15 | March 9, 2017 09:45 | 2d 19h | 7,376 | 31K |
| 4 | May 18, 2017 11:45 | May 21, 2017 04:45 | 2d 17h | 6,735 | 36K |
| 5 | August 21, 2017 11:45 | August 24, 2017 01:30 | 2d 13h | 5,765 | 44K |
| 6 | December 27, 2017 18:30 | December 28, 2017 00:30 | 6h | 5,627 | 1,435 |
| 7 | May 10, 2017 12:45 | May 12, 2017 06:15 | 1d 17h | 5,089 | 11K |
| 8 | April 29, 2017 12:00 | May 1, 2017 04:00 | 1d 16h | 4,125 | 13K |
| 9 | December 27, 2017 13:00 | December 27, 2017 17:45 | 4h 45m | 3,406 | 898 |
| 10 | June 30, 2017 06:15 | June 30, 2017 20:15 | 14h | 3,283 | 7,545 |
Outage episodes by size in 2017: 173 reached 100+ customers, 35 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 2017, 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 | 2017 | 8.6 hrs | 1.37 | 73 min | 0.71 |
| Evergy Kansas Central, Inc | 2017 | 2.4 hrs | 1.23 | 1.7 hrs | 1.08 |
| 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 2017; 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, 2017, 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/2017/kansas/johnson-county