Power outage history
Alamance County North Carolina
5.9hours
without power for the average customer in a typical year, 2018–2025
72nd most of 100 in North Carolina close to 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 Alamance's customers who were without power at that day's worst moment.
Year by year
Hours in the dark, per customer
2018 was the worst well-recorded year, at 17 hours for the average customer. Hatched years have a thin record and are left out of the averages.
Alamance, 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 11, 2018 | Hurricane Michael | 26,663 | 30% | 3.9 d | 2.8 d | 1.2M |
| Sep 30, 2022 | Hurricane Ian | 14,398 | 16% | 44 h | 3.2 h | 289k |
| Feb 13, 2021 | Winter storm | 6,929 | 8% | 34 h | 29 h | 147k |
| Jul 6, 2025 | Tropical Storm Chantal | 12,360 | 14% | 34 h | 2.5 h | 131k |
| Jun 17, 2022 | Thunderstorms | 19,191 | 21% | 26 h | 48 min | 110k |
| Jan 3, 2022 | No storm report | 10,964 | 12% | 30 h | 1.0 h | 80k |
| Dec 23, 2022 | No storm report | 8,903 | 10% | 17 h | 30 min | 77k |
| Jan 9, 2024 | Thunderstorms | 6,516 | 7% | 28 h | 7.5 h | 58k |
| Dec 9, 2018 | Winter storm | 3,097 | 3% | 31 h | – | 57k |
| Mar 7, 2022 | No storm report | 4,768 | 5% | 18 h | 15 h | 50k |
| Jul 15, 2025 | Flooding | 8,786 | 10% | 18 h | 2.0 h | 48k |
| Jul 22, 2024 | No storm report | 6,737 | 7% | 7.0 h | 7.0 h | 27k |
| May 27, 2020 | Tropical Storm Bertha | 2,394 | 3% | 18 h | – | 27k |
| Oct 29, 2020 | Hurricane Zeta | 4,920 | 5% | 7.8 h | 19 h | 27k |
| Apr 14, 2023 | No storm report | 2,703 | 3% | 8.8 h | – | 23k |
| Dec 24, 2022 | No storm report | 7,848 | 9% | 5.8 h | 3.8 h | 22k |
| May 19, 2022 | Thunderstorms | 3,235 | 4% | 8.5 h | – | 22k |
| Apr 15, 2018 | Thunderstorms | 5,795 | 6% | 7.0 h | 5.5 h | 20k |
| Jun 20, 2019 | Thunderstorms | 5,397 | 6% | 4.5 h | 4.0 h | 19k |
| Sep 27, 2024 | Tornadoes | 4,122 | 5% | 12 h | – | 19k |
| Sep 14, 2019 | No storm report | 3,490 | 4% | 6.8 h | – | 19k |
| Jun 20, 2023 | No storm report | 2,998 | 3% | 6.2 h | – | 19k |
| Jul 25, 2019 | No storm report | 3,383 | 4% | 5.5 h | – | 18k |
| Aug 2, 2024 | No storm report | 2,427 | 3% | 11 h | – | 18k |
| Feb 7, 2020 | Windstorm | 4,749 | 5% | 7.5 h | 2.8 h | 17k |
| Feb 18, 2024 | No storm report | 3,044 | 3% | 5.8 h | – | 17k |
| Apr 7, 2025 | No storm report | 6,436 | 7% | 4.2 h | 3.8 h | 17k |
| May 12, 2018 | No storm report | 3,338 | 4% | 5.0 h | – | 17k |
| May 8, 2025 | No storm report | 2,070 | 2% | 8.8 h | – | 16k |
| Apr 27, 2019 | No storm report | 1,648 | 2% | 13 h | – | 16k |
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 Alamance from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.
- Tropical storm 52%
- No storm on record 29%
- Thunderstorms 8.9%
- Winter storm 6.6%
- Flooding 1.6%
- Tornadoes 0.9%
- Windstorm 0.7%
Who keeps the lights on
Utilities serving Alamance
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 |
| Duke Energy Progress | Investor Owned | 183 | 145 | 1.41 | 15.2 | 1.4M |
| Randolph Electric Member Corp | Cooperative | 225 | 108 | 2.16 | 16.1 | 32k |
| Piedmont Electric Member Corp | Cooperative | 503 | 146 | 1.75 | 15.6 | 31k |
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 90,017 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 →