County annual report · FIPS 29101
2015 Johnson County, MO Power Outage Report
In 2015, customers in Johnson County, MO went without power for an average of 1.4 hours, a total of 28K customer-hours (Missouri average 2.2 hours). That ranks 43rd worst of 93 Missouri counties and 1504th of 2,484 nationally.
Compared with MO, the US
Coverage line is EAGLE-I's share of Missouri customers tracked each year.
Biggest outages in Johnson County, 2015
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | August 23, 2015 12:15 | August 23, 2015 20:30 | 8h 15m | 1,975 | 3,336 |
| 2 | August 5, 2015 14:00 | August 5, 2015 18:15 | 4h 15m | 1,904 | 7,613 |
| 3 | May 17, 2015 05:30 | May 17, 2015 21:30 | 16h | 1,168 | 1,721 |
| 4 | June 20, 2015 17:30 | June 21, 2015 01:45 | 8h 15m | 458 | 867 |
| 5 | October 27, 2015 22:45 | October 28, 2015 01:30 | 2h 45m | 446 | 1,050 |
| 6 | April 28, 2015 13:15 | April 28, 2015 19:30 | 6h 15m | 430 | 116 |
| 7 | November 27, 2015 16:00 | November 27, 2015 17:30 | 1h 30m | 427 | 638 |
| 8 | November 11, 2015 19:30 | November 12, 2015 09:45 | 14h 15m | 417 | 1,396 |
| 9 | July 1, 2015 06:45 | July 1, 2015 21:45 | 15h | 387 | 1,589 |
| 10 | June 17, 2015 04:15 | June 17, 2015 05:00 | 45m | 356 | 267 |
Outage episodes by size in 2015: 22 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 Johnson County reported on EIA Form 861 for 2015, 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 | 2015 | 4.9 hrs | 1.06 | 80 min | 0.90 |
| Evergy Kansas Central, Inc | 2015 | 3.9 hrs | 1.72 | 2.3 hrs | 1.43 |
| Evergy Missouri West | 2015 | 3.4 hrs | 1.55 | 1.8 hrs | 1.20 |
| Osage Valley Elec Coop Assn | - | - | - | - | - |
| West Central Electric Coop Inc - (MO) | - | - | - | - | - |
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 Missouri's customers in 2015; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 19,137 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 2015–2017, 2019–2025.
Cite this report
MassOutage (massoutage.com), Johnson County, MO annual power outage report, 2015, 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/2015/missouri/johnson-county