Power outage history
Greene County Ohio
3.6hours
without power for the average customer in a typical year, 2018–2025
63rd most of 88 in Ohio 45% 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 Greene's customers who were without power at that day's worst moment.
Year by year
Hours in the dark, per customer
2024 was the worst well-recorded year, at 7.6 hours for the average customer. Hatched years have a thin record and are left out of the averages.
Greene, 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 |
|---|---|---|---|---|---|---|
| Sep 27, 2024 | Hurricane Helene | 19,025 | 21% | 3.9 d | 2.2 h | 539k |
| May 28, 2019 | Tornadoes | 11,213 | 12% | 4.5 d | 3.5 d | 347k |
| Jun 18, 2025 | Thunderstorms | 18,051 | 19% | 22 h | 15 h | 130k |
| Nov 15, 2018 | Ice storm | 5,651 | 6% | 32 h | 48 min | 78k |
| Jun 13, 2022 | Thunderstorms | 6,700 | 7% | 25 h | 18 h | 56k |
| Nov 15, 2020 | Windstorm | 8,360 | 9% | 15 h | 11 h | 51k |
| Apr 2, 2016 | No storm report | 3,848 | 4% | 17 h | – | 31k |
| Mar 26, 2021 | Windstorm | 5,787 | 6% | 13 h | 9.2 h | 31k |
| Mar 25, 2023 | Thunderstorms | 3,164 | 3% | 14 h | – | 26k |
| Oct 12, 2019 | No storm report | 2,310 | 2% | 12 h | – | 23k |
| Jul 19, 2020 | Thunderstorms | 5,590 | 6% | 6.2 h | 10 h | 21k |
| Jul 25, 2021 | No storm report | 7,883 | 9% | 5.8 h | 5.0 h | 17k |
| Jun 22, 2022 | Thunderstorms | 2,903 | 3% | 8.0 h | – | 17k |
| Dec 30, 2019 | Windstorm | 3,149 | 3% | 8.5 h | – | 17k |
| Apr 1, 2024 | No storm report | 9,754 | 11% | 2.0 h | 3.2 h | 16k |
| Jul 14, 2024 | Thunderstorms | 9,480 | 10% | 1.8 h | 1.8 h | 16k |
| Feb 24, 2019 | No storm report | 6,206 | 7% | 5.5 h | 2.2 h | 16k |
| Nov 10, 2019 | No storm report | 8,391 | 9% | 2.0 h | 48 min | 14k |
| Jun 17, 2019 | Thunderstorms | 4,648 | 5% | 6.0 h | 5.2 h | 13k |
| Jun 19, 2021 | Thunderstorms | 1,480 | 2% | 9.0 h | – | 13k |
| Jul 14, 2015 | Thunderstorms | 5,511 | 6% | 5.5 h | 9.0 h | 11k |
| Mar 26, 2022 | No storm report | 2,961 | 3% | 3.8 h | – | 11k |
| Dec 5, 2018 | No storm report | 3,346 | 4% | 3.5 h | – | 8.6k |
| Aug 27, 2016 | Thunderstorms | 2,388 | 3% | 3.8 h | – | 8.2k |
| Nov 1, 2020 | No storm report | 2,550 | 3% | 3.0 h | – | 7.6k |
| Jul 21, 2017 | Thunderstorms | 3,582 | 4% | 2.2 h | – | 7.4k |
| May 10, 2020 | Thunderstorms | 2,234 | 2% | 4.5 h | – | 7.4k |
| Jul 29, 2016 | No storm report | 11,349 | 12% | 48 min | 30 min | 7.2k |
| Dec 11, 2021 | No storm report | 4,750 | 5% | 2.5 h | 5.8 h | 6.9k |
| Mar 13, 2018 | No storm report | 5,442 | 6% | 2.5 h | 2.8 h | 6.5k |
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 Greene from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.
- Tropical storm 30%
- No storm on record 20%
- Tornadoes 19%
- Thunderstorms 19%
- Windstorm 5.8%
- Ice storm 4.3%
- Winter storm 0.9%
Who keeps the lights on
Utilities serving Greene
As each utility reports to the Energy Information Administration for its whole Ohio territory, not this county alone. Outage minutes include major storm days.
| Utility | Type | Outage min / yr | Excl. major storms | Outages / yr | Residential ¢/kWh | Customers |
|---|---|---|---|---|---|---|
| Ohio Edison Co | Investor Owned | 244 | 131 | 1.51 | 16.0 | 961k |
| Duke Energy Ohio Inc | Investor Owned | 178 | 108 | 1.01 | 16.8 | 700k |
| Dayton Power & Light Co | Investor Owned | 168 | 97 | 0.99 | 16.1 | 469k |
| Village of Yellow Springs | OH | 64 | – | 0.62 | 10.3 | 14k |
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 92,645 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 →