Power outage history
Madison County Indiana
4.7hours
without power for the average customer in a typical year, 2018–2025
38th most of 90 in Indiana 29% 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 Madison's customers who were without power at that day's worst moment.
Year by year
Hours in the dark, per customer
2025 was the worst well-recorded year, at 13 hours for the average customer. Hatched years have a thin record and are left out of the averages.
Madison, 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 2, 2025 | Tornadoes | 19,615 | 26% | 3.8 d | 2.8 d | 531k |
| Jun 18, 2025 | Thunderstorms | 12,366 | 16% | 2.2 d | 47 h | 251k |
| Sep 27, 2024 | Hurricane Helene | 8,100 | 11% | 25 h | 21 h | 93k |
| Nov 15, 2018 | Ice storm | 7,978 | 10% | 28 h | 21 h | 87k |
| Mar 12, 2022 | No storm report | 2,297 | 3% | 36 h | – | 81k |
| Aug 10, 2020 | Thunderstorms | 9,141 | 12% | 17 h | 13 h | 71k |
| May 26, 2024 | No storm report | 2,121 | 3% | 39 h | – | 58k |
| Apr 1, 2023 | Thunderstorms | 4,664 | 6% | 18 h | 17 h | 43k |
| Jul 22, 2017 | Thunderstorms | 2,659 | 3% | 23 h | – | 34k |
| Jul 8, 2020 | Flooding | 9,250 | 12% | 6.8 h | 4.0 h | 33k |
| Feb 20, 2023 | No storm report | 1,513 | 2% | 20 h | – | 29k |
| Apr 8, 2020 | Thunderstorms | 4,547 | 6% | 11 h | 18 h | 28k |
| Jul 16, 2024 | No storm report | 2,807 | 4% | 17 h | – | 28k |
| Jul 14, 2024 | No storm report | 3,940 | 5% | 14 h | 14 h | 27k |
| Sep 29, 2024 | No storm report | 1,199 | 2% | 22 h | – | 22k |
| Jun 12, 2021 | Thunderstorms | 1,992 | 3% | 16 h | – | 21k |
| Nov 5, 2022 | Windstorm | 2,553 | 3% | 12 h | – | 20k |
| Sep 29, 2018 | No storm report | 4,463 | 6% | 4.5 h | 2.8 h | 20k |
| Jun 24, 2022 | No storm report | 2,898 | 4% | 6.5 h | – | 19k |
| Aug 5, 2023 | No storm report | 3,956 | 5% | 4.5 h | 48 min | 18k |
| Sep 13, 2025 | No storm report | 4,537 | 6% | 3.8 h | 3.8 h | 17k |
| May 27, 2019 | Thunderstorms | 5,119 | 7% | 6.2 h | 15 h | 15k |
| Jul 29, 2023 | Thunderstorms | 2,616 | 3% | 9.8 h | – | 15k |
| Mar 15, 2021 | No storm report | 5,401 | 7% | 5.0 h | 5.0 h | 15k |
| Jun 25, 2024 | Thunderstorms | 6,646 | 9% | 3.8 h | 2.5 h | 13k |
| Oct 26, 2022 | No storm report | 1,577 | 2% | 7.8 h | – | 12k |
| Feb 3, 2022 | Winter storm | 4,371 | 6% | 2.8 h | 1.0 h | 12k |
| Mar 26, 2018 | No storm report | 5,708 | 7% | 2.2 h | 3.8 h | 12k |
| Jul 6, 2020 | No storm report | 2,829 | 4% | 8.2 h | – | 12k |
| Jul 23, 2022 | Thunderstorms | 2,011 | 3% | 7.5 h | – | 11k |
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 Madison from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.
- No storm on record 37%
- Tornadoes 25%
- Thunderstorms 25%
- Tropical storm 4.9%
- Ice storm 4.1%
- Flooding 1.9%
- Windstorm 1.4%
- Winter storm 0.8%
Who keeps the lights on
Utilities serving Madison
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 |
| Indiana Michigan Power Co | Investor Owned | 283 | 83 | 0.97 | 17.2 | 425k |
| Henry County Rural E M C | IN | 339 | 150 | 3.65 | 13.0 | 142k |
| Town of Pendleton | IN | – | – | – | – | 30k |
| City of Anderson | Municipal | 1,376 | 264 | 3.00 | 12.7 | 30k |
| NineStar Connect | Cooperative | 193 | 98 | 1.65 | 16.5 | 19k |
| Town of Frankton | IN | – | – | – | – | 12k |
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.
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 76,324 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 →