Power outage history
Nemaha County Kansas
0.5hours
without power for the average customer in a typical year, 2018–2025
80th most of 81 in Kansas 92% below the national median
Every day since 2015
Eleven years, one night at a time
Each cell is a day. The brighter it is, the larger the share of Nemaha's customers who were without power at that day's worst moment.
Year by year
Hours in the dark, per customer
2021 was the worst well-recorded year, at 1.4 hours for the average customer. Hatched years have a thin record and are left out of the averages.
Nemaha, hours without power per customer
The record
The biggest outages since 2015
Ranked by customer-hours lost: customers out multiplied by how long they stayed out. Times are local.
| Began | Storm | Peak out | Share | Lasted | 90% restored | Customer-hours |
|---|---|---|---|---|---|---|
| Feb 16, 2021 | No storm report | 537 | 8% | 5.5 h | 5.5 h | 3.0k |
| Jul 4, 2023 | Thunderstorms | 621 | 9% | 3.2 h | 3.0 h | 1.7k |
| Aug 20, 2021 | Thunderstorms | 423 | 6% | 4.5 h | 3.8 h | 1.3k |
| Dec 18, 2016 | No storm report | 576 | 8% | 2.5 h | 2.5 h | 1.2k |
| Dec 15, 2021 | Thunderstorms | 121 | 2% | 10 h | – | 989 |
| Jan 16, 2016 | No storm report | 578 | 8% | 2.5 h | 2.8 h | 949 |
| Jul 10, 2019 | No storm report | 513 | 7% | 2.0 h | 9.0 h | 922 |
| Jun 2, 2015 | No storm report | 576 | 8% | 4.0 h | 11 h | 870 |
| May 19, 2021 | No storm report | 312 | 4% | 2.8 h | – | 857 |
| Jun 22, 2019 | No storm report | 239 | 3% | 4.0 h | – | 733 |
| Jan 22, 2022 | No storm report | 253 | 4% | 2.8 h | – | 693 |
| Jun 1, 2019 | No storm report | 330 | 5% | 2.0 h | – | 660 |
| Jan 26, 2019 | No storm report | 214 | 3% | 3.0 h | – | 642 |
| Jan 1, 2022 | No storm report | 277 | 4% | 2.2 h | – | 623 |
| Mar 5, 2019 | No storm report | 216 | 3% | 2.5 h | – | 540 |
| Dec 15, 2015 | No storm report | 580 | 8% | 48 min | 48 min | 435 |
| Apr 13, 2022 | Thunderstorms | 243 | 3% | 1.8 h | – | 425 |
| Dec 2, 2016 | No storm report | 421 | 6% | 1.0 h | 30 min | 420 |
| Apr 25, 2024 | No storm report | 223 | 3% | 1.8 h | – | 390 |
| Jun 6, 2025 | No storm report | 111 | 2% | 3.2 h | – | 361 |
| Jun 11, 2021 | Thunderstorms | 220 | 3% | 1.8 h | – | 333 |
| Jun 29, 2023 | Thunderstorms | 123 | 2% | 3.0 h | – | 299 |
| Nov 10, 2021 | No storm report | 117 | 2% | 2.5 h | – | 291 |
| Dec 19, 2020 | No storm report | 535 | 8% | 30 min | 30 min | 268 |
| Aug 21, 2021 | Thunderstorms | 178 | 3% | 1.5 h | – | 261 |
| Jun 24, 2024 | No storm report | 110 | 2% | 2.2 h | – | 248 |
| Apr 22, 2021 | No storm report | 442 | 6% | 30 min | 30 min | 221 |
| Apr 8, 2020 | No storm report | 105 | 1% | 2.0 h | – | 210 |
| May 22, 2020 | No storm report | 105 | 1% | 2.0 h | – | 209 |
| Nov 27, 2015 | Winter storm | 102 | 1% | 2.8 h | – | 204 |
After the peak
How fast the lights come back
Each line is one major outage, from its peak. The amber line is the typical path.
When it happens
The outage clock
Customer-hours out by month (rings, January innermost) and local hour, 2018–2025.
What was happening
Weather behind the outages
Each outage is matched to NOAA storm reports for Nemaha from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.
- No storm on record 69%
- Thunderstorms 31%
Who keeps the lights on
Utilities serving Nemaha
As each utility reports to the Energy Information Administration for its whole Kansas territory, not this county alone. Outage minutes include major storm days.
| Utility | Type | Outage min / yr | Excl. major storms | Outages / yr | Residential ¢/kWh | Customers |
|---|---|---|---|---|---|---|
| Evergy Kansas Central, Inc | Investor Owned | 126 | 80 | 1.17 | 14.6 | 344k |
| Nemaha-Marshall E C A, Inc | KS | 181 | 181 | 1.29 | 14.1 | 38k |
| Brown-Atchison E C A Inc | KS | – | – | – | 14.1 | 31k |
| City of Sabetha | KS | – | – | – | 10.7 | 13k |
| City of Seneca | KS | – | – | – | 7.9 | 10k |
| City of Centralia | KS | – | – | – | – | 2.0k |
EIA Form 861, latest year each utility reported. Outage minutes are SAIDI, the yearly minutes the average customer goes without power; outages a year are SAIFI.
Next door
Neighbouring counties
- Jackson 21 h
- Pawnee, NE 5.6 h
- Richardson, NE 3.7 h
- Brown 3.6 h
- Marshall 3.6 h
- Pottawatomie 2.3 h
- Nemaha (this county) 0.5 h
About these numbers
Notes
Outages come from the EAGLE-I record of utility outage maps collected every 15 minutes by Oak Ridge National Laboratory. Hours without power are customer-hours divided by the county's 7,024 electricity customers. Averages use well-covered years from 2018. Outages shorter than 15 minutes, and utilities that publish no outage map, are not in the record, so these figures understate the total. How every number is made →