Power outage history
Queen Anne's County Maryland
2.1hours
without power for the average customer in a typical year, 2018–2025
21st most of 24 in Maryland 68% 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 Queen Anne's's customers who were without power at that day's worst moment.
Year by year
Hours in the dark, per customer
2025 was the worst well-recorded year, at 3.2 hours for the average customer. Hatched years have a thin record and are left out of the averages.
Queen Anne's, 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 |
|---|---|---|---|---|---|---|
| Jul 24, 2017 | Tornadoes | 8,914 | 34% | 24 h | 19 h | 141k |
| Aug 4, 2020 | Hurricane Isaias | 5,697 | 22% | 19 h | 13 h | 41k |
| Jan 7, 2017 | Winter storm | 7,017 | 27% | 9.8 h | 4.5 h | 24k |
| May 13, 2018 | No storm report | 14,132 | 53% | 1.5 h | 30 min | 21k |
| Jan 28, 2025 | No storm report | 5,920 | 22% | 3.0 h | 7.5 h | 18k |
| Mar 2, 2018 | Windstorm | 3,346 | 13% | 7.2 h | 2.0 h | 13k |
| May 26, 2019 | Thunderstorms | 1,860 | 7% | 10 h | 9.8 h | 9.1k |
| Aug 16, 2016 | No storm report | 1,883 | 7% | 3.2 h | 2.8 h | 6.1k |
| Feb 24, 2016 | Thunderstorms | 2,325 | 9% | 5.8 h | 11 h | 6.1k |
| Aug 13, 2017 | No storm report | 2,414 | 9% | 2.5 h | 2.2 h | 6.0k |
| Jul 2, 2022 | No storm report | 1,840 | 7% | 5.0 h | 1.5 h | 5.4k |
| Jun 23, 2016 | No storm report | 3,129 | 12% | 1.5 h | 12 h | 4.7k |
| Nov 20, 2025 | No storm report | 1,337 | 5% | 4.0 h | 4.0 h | 4.7k |
| Jul 28, 2016 | Thunderstorms | 2,644 | 10% | 4.2 h | 2.8 h | 4.5k |
| Apr 8, 2017 | No storm report | 2,500 | 9% | 1.8 h | 1.8 h | 4.2k |
| Apr 14, 2018 | No storm report | 2,414 | 9% | 2.2 h | 14 h | 4.0k |
| Apr 7, 2016 | Thunderstorms | 2,006 | 8% | 5.8 h | 5.5 h | 3.9k |
| Aug 4, 2025 | No storm report | 1,586 | 6% | 2.8 h | 2.2 h | 3.8k |
| Jun 4, 2024 | No storm report | 1,169 | 4% | 3.2 h | – | 3.8k |
| Oct 31, 2019 | Thunderstorms | 759 | 3% | 7.8 h | – | 3.7k |
| Jul 26, 2016 | No storm report | 1,589 | 6% | 4.0 h | 3.8 h | 3.7k |
| Feb 16, 2025 | No storm report | 1,474 | 6% | 6.0 h | 3.0 h | 3.6k |
| Oct 28, 2015 | No storm report | 2,094 | 8% | 1.8 h | 48 min | 3.6k |
| Jun 19, 2025 | Thunderstorms | 1,263 | 5% | 5.0 h | – | 3.5k |
| Aug 11, 2015 | No storm report | 475 | 2% | 7.5 h | – | 3.5k |
| Mar 12, 2017 | No storm report | 1,849 | 7% | 3.8 h | 2.8 h | 3.4k |
| Feb 20, 2018 | No storm report | 2,270 | 9% | 1.5 h | 1.5 h | 3.4k |
| Jan 28, 2017 | No storm report | 2,642 | 10% | 1.5 h | 48 min | 3.3k |
| Jan 9, 2024 | No storm report | 1,535 | 6% | 7.5 h | 7.5 h | 3.3k |
| Oct 4, 2022 | No storm report | 418 | 2% | 7.5 h | – | 3.1k |
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 Queen Anne's from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.
- No storm on record 61%
- Tropical storm 16%
- Thunderstorms 12%
- Windstorm 5.2%
- Winter storm 2.5%
- Flooding 1.2%
- Heat 1.0%
Who keeps the lights on
Utilities serving Queen Anne's
As each utility reports to the Energy Information Administration for its whole Maryland territory, not this county alone. Outage minutes include major storm days.
| Utility | Type | Outage min / yr | Excl. major storms | Outages / yr | Residential ¢/kWh | Customers |
|---|---|---|---|---|---|---|
| Delmarva Power | Investor Owned | 114 | 66 | 0.93 | 21.8 | 188k |
| Choptank Electric Cooperative, Inc | Cooperative | 217 | 121 | 1.80 | 17.1 | 51k |
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 26,465 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 →