Delmarva Power: power outages per year
In 2025 the average Delmarva Power customer was without power for 1.7 hours, close to the Delaware average of 1.6 h; down from 2.1 h in 2024. The utility served 340,680 customers in Delaware and ranks #2 of 2 large Delaware utilities by outage hours.
By year
| Year | Hours (with major events) | Hours (without) | Interruptions | Customers |
|---|---|---|---|---|
| 2025 | 1.7 | 1.3 | 0.8 | 340,680 |
| 2024 | 2.1 | 1.1 | 0.8 | 337,507 |
| 2023 | 2.0 | 1.0 | 0.7 | 334,632 |
| 2022 | 1.3 | 1.1 | 0.7 | 330,683 |
| 2021 | 1.0 | 1.0 | 0.8 | 327,521 |
| 2020 | 4.5 | 1.3 | 1.1 | 323,671 |
"With major events" includes storm days that utilities may exclude from their own reliability targets; it is what customers actually live through. The gap between the two columns shows how much of the year's outage time came from big storms.
Backup power for Delmarva Power outages
An average outage here lasted about 2.2 hours in 2025. Size backup for the longest outage you want to ride through, not the average.
Other large utilities in Delaware
FAQ
How many hours a year are Delmarva Power customers without power?
1.7 hours per customer in 2025 including major event days (1.3 h without them), as Delmarva Power reported to the U.S. EIA.
How long does a typical Delmarva Power outage last?
About 2.2 hours on average in 2025 (total outage minutes divided by the number of interruptions). Storms make single events much longer.
Source: U.S. EIA Form 861, Reliability file, 2020–2025. Data snapshot . Utilities ranked nationwide →