Power outage history
Iredell County North Carolina
3.9hours
without power for the average customer in a typical year, 2018–2025
91st most of 100 in North Carolina 41% 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 Iredell's customers who were without power at that day's worst moment.
Year by year
Hours in the dark, per customer
2020 was the worst well-recorded year, at 7.4 hours for the average customer. Hatched years have a thin record and are left out of the averages.
Iredell, 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 |
|---|---|---|---|---|---|---|
| Oct 29, 2020 | Hurricane Zeta | 33,405 | 27% | 2.3 d | 35 h | 597k |
| Sep 27, 2024 | Hurricane Helene | 16,509 | 13% | 2.2 d | 30 h | 363k |
| Aug 7, 2023 | Tornadoes | 23,376 | 19% | 44 h | 35 h | 341k |
| Oct 11, 2018 | Hurricane Michael | 12,951 | 10% | 33 h | 28 h | 149k |
| Dec 24, 2022 | Winter storm | 9,562 | 8% | 15 h | 12 h | 86k |
| Jul 8, 2016 | Thunderstorms | 8,116 | 6% | 9.5 h | 8.2 h | 54k |
| Jan 3, 2022 | Windstorm | 7,165 | 6% | 12 h | 22 h | 47k |
| Oct 31, 2019 | Thunderstorms | 5,304 | 4% | 16 h | 7.8 h | 47k |
| Apr 26, 2019 | No storm report | 6,599 | 5% | 13 h | 11 h | 45k |
| Sep 6, 2025 | No storm report | 5,214 | 4% | 10 h | 9.2 h | 44k |
| Jun 21, 2018 | No storm report | 4,159 | 3% | 13 h | – | 42k |
| Sep 17, 2024 | No storm report | 11,449 | 9% | 7.8 h | 5.8 h | 42k |
| Jun 20, 2020 | Thunderstorms | 7,335 | 6% | 7.2 h | 6.8 h | 40k |
| Sep 26, 2024 | No storm report | 4,938 | 4% | 10 h | – | 40k |
| Aug 8, 2024 | Hurricane Debby | 3,864 | 3% | 14 h | – | 36k |
| Jan 11, 2020 | No storm report | 4,430 | 4% | 13 h | – | 31k |
| Apr 13, 2020 | No storm report | 6,022 | 5% | 9.0 h | 6.5 h | 30k |
| Feb 26, 2015 | Winter storm | 4,204 | 3% | 7.5 h | – | 28k |
| Jul 14, 2023 | No storm report | 9,657 | 8% | 6.0 h | 5.8 h | 25k |
| May 4, 2021 | No storm report | 2,870 | 2% | 17 h | – | 24k |
| May 4, 2022 | Thunderstorms | 2,999 | 2% | 11 h | – | 23k |
| Jun 30, 2015 | Thunderstorms | 4,260 | 3% | 9.2 h | – | 20k |
| Jul 24, 2018 | No storm report | 4,507 | 4% | 8.5 h | – | 18k |
| Jan 13, 2019 | Ice storm | 2,947 | 2% | 12 h | – | 17k |
| Jun 25, 2025 | No storm report | 7,188 | 6% | 3.8 h | 3.2 h | 16k |
| Feb 24, 2016 | Windstorm | 3,264 | 3% | 8.5 h | – | 16k |
| Aug 21, 2019 | Thunderstorms | 3,944 | 3% | 6.0 h | – | 16k |
| Sep 16, 2018 | Hurricane Florence | 3,620 | 3% | 5.2 h | – | 16k |
| Aug 26, 2023 | No storm report | 4,521 | 4% | 4.8 h | – | 15k |
| Apr 10, 2020 | Windstorm | 3,787 | 3% | 6.5 h | – | 13k |
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 Iredell from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.
- Tropical storm 44%
- No storm on record 28%
- Tornadoes 13%
- Thunderstorms 8.3%
- Winter storm 3.9%
- Windstorm 2.3%
- Ice storm 0.7%
- Flooding 0.5%
Who keeps the lights on
Utilities serving Iredell
As each utility reports to the Energy Information Administration for its whole North Carolina 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 Carolinas, LLC | Investor Owned | 216 | 172 | 1.35 | 13.4 | 2.0M |
| EnergyUnited Elec Member Corp | Cooperative | 169 | 121 | 1.56 | 11.6 | 124k |
| City of Statesville | Municipal | 78 | 38 | 0.57 | 11.5 | 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.
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 125,086 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 →