Power outage history
Hardeman County Tennessee
1.4hours
without power for the average customer in a typical year, 2018–2025
66th most of 73 in Tennessee 79% 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 Hardeman'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 3.4 hours for the average customer. Hatched years have a thin record and are left out of the averages.
Hardeman, 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 |
|---|---|---|---|---|---|---|
| Jun 25, 2023 | Heat | 1,023 | 8% | 44 h | 42 h | 17k |
| May 15, 2024 | No storm report | 1,459 | 11% | 7.5 h | 7.5 h | 11k |
| Mar 30, 2022 | Thunderstorms | 1,209 | 9% | 17 h | 17 h | 6.3k |
| Apr 3, 2025 | Tornadoes | 1,309 | 10% | 12 h | 9.0 h | 4.5k |
| Aug 19, 2020 | No storm report | 630 | 5% | 5.8 h | – | 3.6k |
| Jan 3, 2023 | No storm report | 943 | 7% | 5.2 h | 1.5 h | 2.8k |
| Jul 21, 2023 | Thunderstorms | 408 | 3% | 10 h | – | 2.8k |
| Mar 3, 2023 | Windstorm | 414 | 3% | 11 h | – | 2.8k |
| Aug 21, 2022 | No storm report | 1,461 | 11% | 1.8 h | 2.8 h | 2.6k |
| Dec 29, 2024 | No storm report | 524 | 4% | 8.2 h | – | 2.5k |
| Feb 18, 2023 | No storm report | 382 | 3% | 6.2 h | – | 2.4k |
| Feb 2, 2023 | Winter storm | 847 | 7% | 8.5 h | 2.5 h | 2.4k |
| Aug 8, 2025 | No storm report | 1,482 | 12% | 1.8 h | 48 min | 2.1k |
| Aug 5, 2022 | No storm report | 1,122 | 9% | 1.8 h | 1.2 h | 1.7k |
| May 6, 2021 | Thunderstorms | 241 | 2% | 8.0 h | – | 1.5k |
| May 31, 2017 | No storm report | 350 | 3% | 6.5 h | – | 1.5k |
| Aug 13, 2021 | No storm report | 926 | 7% | 1.5 h | 1.5 h | 1.4k |
| Aug 12, 2023 | No storm report | 437 | 3% | 3.0 h | – | 1.3k |
| Oct 22, 2017 | No storm report | 1,458 | 11% | 1.5 h | – | 1.3k |
| Jul 31, 2019 | No storm report | 192 | 2% | 6.5 h | – | 1.2k |
| Jul 16, 2020 | No storm report | 955 | 7% | 1.2 h | 1.2 h | 1.2k |
| May 22, 2024 | No storm report | 949 | 7% | 1.8 h | 1.8 h | 1.2k |
| May 27, 2024 | Tornadoes | 656 | 5% | 1.8 h | 1.8 h | 1.1k |
| Nov 23, 2019 | No storm report | 1,467 | 11% | 48 min | 48 min | 1.1k |
| Dec 28, 2019 | No storm report | 627 | 5% | 1.8 h | – | 1.1k |
| Aug 6, 2022 | No storm report | 1,456 | 11% | 48 min | 13 h | 1.1k |
| Dec 1, 2025 | No storm report | 423 | 3% | 2.8 h | – | 1.0k |
| Jul 1, 2025 | No storm report | 435 | 3% | 2.8 h | – | 990 |
| Jul 6, 2018 | No storm report | 628 | 5% | 1.8 h | – | 966 |
| Jun 1, 2021 | No storm report | 1,449 | 11% | 48 min | 48 min | 958 |
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 Hardeman from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.
- No storm on record 58%
- Heat 19%
- Thunderstorms 11%
- Tornadoes 5.8%
- Winter storm 3.3%
- Windstorm 2.9%
Who keeps the lights on
Utilities serving Hardeman
As each utility reports to the Energy Information Administration for its whole Tennessee territory, not this county alone. Outage minutes include major storm days.
| Utility | Type | Outage min / yr | Excl. major storms | Outages / yr | Residential ¢/kWh | Customers |
|---|---|---|---|---|---|---|
| Southwest Tennessee E M C | Cooperative | 701 | 234 | 3.98 | 13.7 | 44k |
| Chickasaw Electric Coop, Inc | Cooperative | 1,365 | 531 | 5.70 | 11.8 | 20k |
| Pickwick Electric Coop | Cooperative | 580 | 484 | – | 13.4 | 17k |
| Bolivar Energy Authority | Municipal | 564 | 188 | 2.39 | 14.2 | 8.9k |
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
- Fayette 8.3 h
- Tippah, MS 8.1 h
- Benton, MS 6.9 h
- Chester 5.8 h
- Madison 3.9 h
- Haywood 3.2 h
- Hardeman (this county) 1.4 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 12,774 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 →