2025 Massachusetts Power Outage Report
In 2025, the average Massachusetts customer went without power for about 2.8 hours — the 43rd worst of any US state that year, below the state's decade average. Figures from DOE/ORNL EAGLE-I.
Avg hrs / customer
2.8
Peak customers out
47,121
Rank (worst state)
43rd
Counties affected
14
Massachusetts outages over the decade
Average hours without power per customer, 2025 highlighted.
Hardest-hit Massachusetts counties in 2025
By peak customers out during the year's worst event.
1Plymouth County47,1212Bristol County38,3603Norfolk County29,0044Suffolk County27,8175Barnstable County24,2946Hampden County20,0877Middlesex County19,3218Worcester County12,7319Berkshire County10,88110Franklin County10,33011Dukes County10,15712Essex County8,49113Hampshire County8,14914Nantucket County1,860
Biggest Massachusetts outages of 2025
| County | Began | Peak customers out |
|---|---|---|
| Plymouth County | July 3, 2025 | 47,121 |
| Bristol County | July 3, 2025 | 38,360 |
| Bristol County | July 4, 2025 | 34,576 |
| Plymouth County | July 4, 2025 | 30,897 |
| Norfolk County | December 19, 2025 | 29,004 |
| Suffolk County | May 14, 2025 | 27,817 |
| Bristol County | August 14, 2025 | 27,781 |
| Barnstable County | May 31, 2025 | 24,294 |
| Barnstable County | July 4, 2025 | 21,935 |
| Hampden County | March 20, 2025 | 20,087 |
Part of the 2025 US Power Outage Report. Source: DOE/ORNL EAGLE-I. “Avg hours per customer” is a SAIDI-like measure (outage customer-minutes ÷ tracked customers); coverage varies by year.