Power outage history
Grant County Indiana
2.9hours
without power for the average customer in a typical year, 2018–2025
59th most of 90 in Indiana 57% 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 Grant's customers who were without power at that day's worst moment.
Year by year
Hours in the dark, per customer
2022 was the worst well-recorded year, at 6.3 hours for the average customer. Hatched years have a thin record and are left out of the averages.
Grant, 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 |
|---|---|---|---|---|---|---|
| Jul 23, 2022 | Thunderstorms | 9,421 | 20% | 2.2 d | 47 h | 216k |
| Apr 1, 2023 | Tornadoes | 4,329 | 9% | 36 h | 32 h | 77k |
| Feb 25, 2018 | No storm report | 6,200 | 13% | 12 h | 9.0 h | 63k |
| Nov 18, 2016 | Thunderstorms | 3,898 | 8% | 14 h | 8.8 h | 32k |
| Nov 5, 2017 | Thunderstorms | 4,392 | 9% | 10 h | 8.5 h | 28k |
| Sep 19, 2015 | No storm report | 4,428 | 9% | 13 h | 11 h | 28k |
| Oct 6, 2018 | No storm report | 4,306 | 9% | 6.8 h | 6.2 h | 23k |
| Sep 27, 2024 | Hurricane Helene | 2,707 | 6% | 17 h | 15 h | 19k |
| Dec 15, 2017 | No storm report | 2,091 | 4% | 8.8 h | – | 18k |
| Dec 11, 2021 | Windstorm | 1,915 | 4% | 13 h | – | 17k |
| Jun 10, 2020 | Thunderstorms | 3,791 | 8% | 8.5 h | 6.0 h | 16k |
| Dec 12, 2024 | No storm report | 3,204 | 7% | 7.0 h | 4.2 h | 16k |
| Apr 24, 2020 | No storm report | 2,945 | 6% | 5.5 h | 4.0 h | 16k |
| Aug 28, 2016 | Thunderstorms | 1,270 | 3% | 17 h | – | 15k |
| Jan 10, 2017 | No storm report | 3,212 | 7% | 13 h | 15 h | 14k |
| Oct 21, 2019 | No storm report | 3,507 | 7% | 4.2 h | 2.0 h | 13k |
| Jun 11, 2015 | No storm report | 947 | 2% | 20 h | – | 13k |
| Apr 2, 2016 | No storm report | 1,321 | 3% | 9.0 h | – | 11k |
| Jul 27, 2021 | No storm report | 2,517 | 5% | 4.0 h | 1.0 h | 10k |
| Jun 27, 2022 | No storm report | 1,961 | 4% | 4.8 h | – | 9.2k |
| Jul 20, 2018 | No storm report | 1,061 | 2% | 11 h | – | 8.9k |
| Nov 1, 2020 | No storm report | 2,016 | 4% | 3.8 h | – | 7.3k |
| Jul 31, 2016 | No storm report | 2,093 | 4% | 3.5 h | – | 7.3k |
| Nov 3, 2016 | No storm report | 2,406 | 5% | 3.0 h | 2.5 h | 7.2k |
| Nov 9, 2017 | No storm report | 2,065 | 4% | 3.5 h | – | 6.7k |
| Nov 5, 2022 | No storm report | 1,447 | 3% | 5.0 h | – | 6.6k |
| May 16, 2025 | Thunderstorms | 1,437 | 3% | 5.0 h | – | 6.5k |
| Mar 13, 2022 | No storm report | 805 | 2% | 8.0 h | – | 6.4k |
| Mar 3, 2023 | No storm report | 1,761 | 4% | 5.8 h | – | 6.4k |
| Jun 17, 2023 | No storm report | 1,740 | 4% | 3.5 h | – | 6.1k |
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 Grant from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.
- No storm on record 52%
- Thunderstorms 32%
- Tornadoes 10.0%
- Tropical storm 2.8%
- Windstorm 2.6%
- Winter storm 0.7%
Who keeps the lights on
Utilities serving Grant
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 |
| Indiana Michigan Power Co | Investor Owned | 283 | 83 | 0.97 | 17.2 | 425k |
| City of Gas City | IN | – | – | – | – | 31k |
| Heartland REMC | Cooperative | – | – | – | 14.5 | 18k |
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
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 47,771 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 →