Power outage history
Clarke County Georgia
3.0hours
without power for the average customer in a typical year, 2018–2025
132nd most of 156 in Georgia 54% 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 Clarke's customers who were without power at that day's worst moment.
Year by year
Hours in the dark, per customer
2023 was the worst well-recorded year, at 8.1 hours for the average customer. Hatched years have a thin record and are left out of the averages.
Clarke, 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 11, 2017 | Hurricane Irma | 29,289 | 37% | 3.2 d | 40 h | 655k |
| Jul 20, 2023 | Thunderstorms | 21,517 | 27% | 2.0 d | 43 h | 435k |
| Feb 16, 2015 | Ice storm | 11,338 | 14% | 25 h | 20 h | 113k |
| Sep 27, 2024 | Hurricane Helene | 12,930 | 16% | 29 h | 14 h | 106k |
| Jun 7, 2025 | Thunderstorms | 10,931 | 14% | 17 h | 8.0 h | 75k |
| Jul 21, 2018 | Thunderstorms | 10,432 | 13% | 20 h | 19 h | 74k |
| Jul 1, 2017 | Thunderstorms | 8,522 | 11% | 14 h | 5.8 h | 46k |
| Oct 29, 2020 | Hurricane Zeta | 9,659 | 12% | 9.5 h | 7.0 h | 43k |
| Jun 25, 2023 | No storm report | 6,394 | 8% | 14 h | 16 h | 38k |
| Jul 31, 2025 | No storm report | 7,469 | 10% | 12 h | 5.2 h | 33k |
| Jan 3, 2022 | No storm report | 3,062 | 4% | 11 h | – | 20k |
| Oct 4, 2015 | Windstorm | 5,567 | 7% | 8.2 h | 7.5 h | 20k |
| Aug 7, 2023 | Thunderstorms | 9,811 | 12% | 4.8 h | 3.0 h | 18k |
| Mar 31, 2025 | Thunderstorms | 4,404 | 6% | 11 h | 11 h | 16k |
| Jun 6, 2021 | Thunderstorms | 2,862 | 4% | 8.0 h | – | 16k |
| Aug 10, 2015 | Thunderstorms | 4,512 | 6% | 6.2 h | 6.0 h | 14k |
| Aug 19, 2019 | Thunderstorms | 2,015 | 3% | 9.5 h | – | 13k |
| Jun 27, 2020 | No storm report | 2,088 | 3% | 7.8 h | – | 13k |
| Jul 4, 2017 | No storm report | 4,731 | 6% | 4.5 h | 4.2 h | 11k |
| Jan 15, 2023 | No storm report | 2,030 | 3% | 8.0 h | – | 11k |
| Dec 23, 2022 | No storm report | 3,196 | 4% | 5.2 h | – | 9.6k |
| Jul 1, 2023 | Thunderstorms | 2,461 | 3% | 4.5 h | – | 9.5k |
| Feb 16, 2025 | No storm report | 3,609 | 5% | 3.2 h | – | 8.6k |
| May 5, 2021 | No storm report | 6,021 | 8% | 2.2 h | 2.2 h | 7.7k |
| Jun 15, 2025 | No storm report | 2,287 | 3% | 5.0 h | – | 7.0k |
| Jun 22, 2019 | No storm report | 2,684 | 3% | 3.2 h | – | 6.6k |
| Apr 6, 2017 | No storm report | 4,888 | 6% | 2.5 h | 6.5 h | 6.5k |
| Aug 17, 2016 | Thunderstorms | 3,473 | 4% | 4.5 h | – | 6.2k |
| Mar 21, 2017 | Thunderstorms | 4,413 | 6% | 1.5 h | 1.2 h | 6.1k |
| Dec 26, 2025 | No storm report | 1,871 | 2% | 5.8 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 Clarke from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.
- Thunderstorms 54%
- No storm on record 33%
- Tropical storm 13%
Who keeps the lights on
Utilities serving Clarke
As each utility reports to the Energy Information Administration for its whole Georgia territory, not this county alone. Outage minutes include major storm days.
| Utility | Type | Outage min / yr | Excl. major storms | Outages / yr | Residential ¢/kWh | Customers |
|---|---|---|---|---|---|---|
| Georgia Power Co | Investor Owned | 287 | 155 | 1.83 | 16.3 | 2.5M |
| Jackson Electric Member Corp | Cooperative | 217 | 74 | 1.22 | 11.9 | 246k |
| Walton Electric Member Corp | Cooperative | 307 | 164 | 2.65 | 14.1 | 134k |
| Rayle Electric Membership Corp | Cooperative | 474 | 303 | 4.12 | 14.6 | 16k |
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
- Oglethorpe 8.8 h
- Madison 3.3 h
- Clarke (this county) 3.0 h
- Oconee 2.1 h
- Jackson 1.7 h
- Barrow 1.5 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 78,630 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 →