Power outage history
Knox County Indiana
7.3hours
without power for the average customer in a typical year, 2018–2025
21st most of 90 in Indiana close to 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 Knox's customers who were without power at that day's worst moment.
Year by year
Hours in the dark, per customer
2020 was the worst well-recorded year, at 30 hours for the average customer. Hatched years have a thin record and are left out of the averages.
Knox, 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 |
|---|---|---|---|---|---|---|
| Apr 8, 2020 | Thunderstorms | 10,907 | 69% | 3.0 d | 2.6 d | 463k |
| Apr 18, 2024 | Thunderstorms | 3,319 | 21% | 20 h | 19 h | 22k |
| Jul 30, 2024 | Thunderstorms | 6,507 | 41% | 6.5 h | 4.2 h | 19k |
| Jun 17, 2022 | Thunderstorms | 2,279 | 14% | 12 h | 7.5 h | 17k |
| Apr 6, 2016 | No storm report | 3,600 | 23% | 23 h | 6.8 h | 15k |
| May 26, 2024 | Thunderstorms | 2,826 | 18% | 13 h | 4.5 h | 14k |
| Jun 23, 2018 | No storm report | 1,729 | 11% | 8.0 h | 8.0 h | 14k |
| Jun 30, 2023 | No storm report | 733 | 5% | 26 h | – | 13k |
| Sep 6, 2021 | No storm report | 2,847 | 18% | 4.2 h | 4.2 h | 12k |
| Mar 28, 2022 | No storm report | 2,860 | 18% | 3.8 h | 3.8 h | 9.4k |
| Nov 14, 2024 | No storm report | 605 | 4% | 16 h | – | 9.2k |
| Apr 29, 2022 | No storm report | 3,420 | 22% | 2.5 h | 4.2 h | 8.3k |
| Oct 26, 2019 | Tropical Storm Olga | 2,865 | 18% | 8.0 h | 6.5 h | 8.2k |
| Jul 28, 2025 | Thunderstorms | 1,542 | 10% | 12 h | 11 h | 8.2k |
| Jun 30, 2019 | Thunderstorms | 2,917 | 18% | 9.5 h | 5.5 h | 8.2k |
| Nov 27, 2022 | No storm report | 3,433 | 22% | 6.2 h | 3.2 h | 8.0k |
| Jul 23, 2017 | Thunderstorms | 2,217 | 14% | 11 h | 7.8 h | 8.0k |
| May 31, 2018 | Tropical Storm Alberto | 1,215 | 8% | 17 h | 16 h | 7.5k |
| Jun 15, 2016 | Thunderstorms | 1,273 | 8% | 16 h | 8.2 h | 6.1k |
| May 21, 2022 | No storm report | 2,029 | 13% | 3.2 h | 2.5 h | 6.1k |
| Oct 29, 2024 | No storm report | 1,742 | 11% | 3.5 h | 3.5 h | 6.1k |
| Jun 12, 2016 | No storm report | 1,719 | 11% | 3.5 h | 8.0 h | 6.0k |
| Jul 13, 2016 | Thunderstorms | 3,274 | 21% | 5.8 h | 3.0 h | 5.5k |
| Mar 31, 2023 | No storm report | 2,450 | 15% | 3.8 h | 1.2 h | 5.5k |
| Jun 23, 2019 | Thunderstorms | 1,041 | 7% | 5.2 h | 1.2 h | 5.3k |
| Aug 22, 2019 | Thunderstorms | 2,417 | 15% | 4.2 h | 3.5 h | 5.0k |
| Jul 3, 2016 | No storm report | 2,767 | 17% | 3.2 h | 2.5 h | 5.0k |
| Apr 23, 2023 | No storm report | 1,739 | 11% | 3.0 h | 15 h | 4.7k |
| Apr 2, 2025 | Thunderstorms | 858 | 5% | 6.0 h | 2.0 h | 4.7k |
| Mar 5, 2024 | No storm report | 2,381 | 15% | 3.2 h | 3.0 h | 4.5k |
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 Knox from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.
- Thunderstorms 70%
- No storm on record 28%
- Tropical storm 2.1%
Who keeps the lights on
Utilities serving Knox
As each utility reports to the Energy Information Administration for its whole Indiana territory, not this county alone. Outage minutes include major storm days.
| Utility | Type | Outage min / yr | Excl. major storms | Outages / yr | Residential ¢/kWh | Customers |
|---|---|---|---|---|---|---|
| Duke Energy Indiana, LLC | Investor Owned | 267 | 108 | 1.26 | 15.0 | 809k |
| AES Indiana | Investor Owned | 295 | 76 | 1.22 | 14.7 | 470k |
| Utilities Dist-Western IN REMC | Cooperative | 763 | 363 | 3.43 | 15.7 | 19k |
| Western Indiana Energy REMC | Cooperative | 408 | 287 | 2.31 | 14.7 | 15k |
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
- Pike 9.2 h
- Knox (this county) 7.3 h
- Crawford, IL 5.8 h
- Sullivan 5.5 h
- Lawrence, IL 5.4 h
- Gibson 4.4 h
- Greene 3.9 h
- Daviess 0.6 h
- Wabash, IL 0.4 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 15,843 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 →