Public Service Co of NH: power outages per year
In 2025 the average Public Service Co of NH customer was without power for 2.7 hours, less than the New Hampshire average of 3.9 h; down from 13.1 h in 2024. The utility served 555,603 customers in New Hampshire and ranks #1 of 1 large New Hampshire utilities by outage hours.
By year
| Year | Hours (with major events) | Hours (without) | Interruptions | Customers |
|---|---|---|---|---|
| 2025 | 2.7 | 1.4 | 1.1 | 555,603 |
| 2024 | 13.1 | 1.4 | 1.6 | 551,456 |
| 2023 | 11.1 | 1.4 | 1.5 | 546,919 |
| 2022 | 9.2 | 1.3 | 1.4 | 543,167 |
| 2021 | 3.0 | 1.6 | 1.1 | 539,189 |
| 2020 | 7.7 | 1.6 | 1.5 | 535,095 |
"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 Public Service Co of NH outages
An average outage here lasted about 2.5 hours in 2025. Size backup for the longest outage you want to ride through, not the average.
FAQ
How many hours a year are Public Service Co of NH customers without power?
2.7 hours per customer in 2025 including major event days (1.4 h without them), as Public Service Co of NH reported to the U.S. EIA.
How long does a typical Public Service Co of NH outage last?
About 2.5 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 →