Power outages in Maine
In 2025, the average Maine customer had 6.1 hours (363.4 minutes) without power. The US median in the data is 4.3 hours (258.7 minutes), so Maine was about 1.7 hours higher.
Trend
Outage time has swung widely since 2020, from 5.4 hours in 2021 to a worst of 31.1 hours in 2023. It was 29.1 hours in 2024 and fell to 6.1 hours in 2025.
Utilities in 2025
Central Maine Power Co had the lowest SAIDI in 2025 at 5.3 hours (318.3 minutes). Eastern Maine Electric Coop had the highest at 16.5 hours (991.0 minutes).
| Utility | Customers | Hours / yr | Interruptions |
|---|---|---|---|
| Eastern Maine Electric Coop | 13,265 | 16.5 | 7.2 |
| Versant Power | 165,449 | 8.3 | 2.4 |
| Central Maine Power Co | 685,861 | 5.3 | 2.1 |
What this means for backup power
For everyday outages, enter 2.7 hours in the calculator, the average length of one interruption. To ride out a year like 2023, size for 31.1 hours, the total outage hours of that year.
FAQ
What does SAIDI mean?
SAIDI is the total time an average customer is without power in a year. It is not the length of a single outage. In Maine in 2025 it was 6.1 hours.
How long does one power outage last in Maine?
One interruption lasts 2.7 hours on average. In 2025, the average customer had 2.24 interruptions.
How much backup power should I plan for?
For everyday outages, plan around 2.7 hours. If you want to cover a year like 2023, plan for 31.1 hours of total outage time. The calculator on this page lets you test both.
Utility pages
Source: U.S. EIA Form 861 Reliability file. Data snapshot 2026-11-05.