Power outages in Massachusetts, by utility
Across 14 Massachusetts utilities that reported to the federal government, the median customer went without power for 1.2 hours in 2025 — that is 2.4× better than the national median. Massachusetts ranks #39 of 41 states for outage time, worst first.
- Median utility
- 1.2 hrs
- typical customer
- Worst utility
- 13.8 hrs
- Town of Shrewsbury - (MA)
- Best utility
- 0.2 hrs
- Town of North Attleborough - (MA)
- Utilities reporting
- 14
- of 752 nationwide
Every reporting Massachusetts utility, worst outage time first
| # | Utility | Outage time/yr | Outages/yr | vs US median |
|---|---|---|---|---|
| 1 | Town of Shrewsbury - (MA)Municipal | 13.8 hrs830 min | 2.6 | 4.7× worse |
| 2 | City of Westfield - (MA)Municipal | 3.2 hrs194 min | 1.8 | 1.1× worse |
| 3 | Massachusetts Electric CoInvestor Owned | 2.2 hrs133 min | 1.0 | 1.3× better |
| 4 | City of Norwood - (MA)Municipal | 2 hrs117 min | 1.7 | 1.5× better |
| 5 | NSTAR Electric CompanyInvestor Owned | 1.9 hrs113 min | 0.8 | 1.6× better |
| 6 | Nantucket Electric CoInvestor Owned | 1.7 hrs103 min | 1.0 | 1.7× better |
| 7 | Fitchburg Gas & Elec Light CoInvestor Owned | 1.2 hrs74 min | 1.1 | 2.4× better |
| 8 | Town of Braintree - (MA)Municipal | 1.2 hrs72 min | 1.3 | 2.5× better |
| 9 | City of Taunton - (MA)Municipal | 1.1 hrs64 min | 1.4 | 2.8× better |
| 10 | Town of Reading - (MA)Municipal | 0.8 hrs50 min | 0.5 | 3.5× better |
| 11 | City of Holyoke - (MA)Municipal | 0.6 hrs37 min | 0.5 | 4.8× better |
| 12 | Town of Mansfield - (MA)Municipal | 0.3 hrs21 min | 0.1 | 8.6× better |
| 13 | City of Chicopee - (MA)Municipal | 0.2 hrs12 min | 0.1 | 14.8× better |
| 14 | Town of North Attleborough - (MA)Municipal | 0.2 hrs10 min | 0.1 | 18.0× better |
Outage time is SAIDI: the average minutes a customer went without power across the year, storms and major events included. Outages/yr is SAIFI. The US median across all reporting utilities is 3 hours (178 minutes).
What these numbers do and do not say
SAIDI counts the minutes an average customer spent without power over the year, including storms and other major events. We rank on the figure that includes them, because excluding storms would describe a year nobody actually lived through.
Utilities report these numbers themselves, and smaller co-ops and municipal systems often serve rural territory where a single line fault affects a large share of customers. A high number is not automatically mismanagement — but it is still the power you did not have.
Utilities that filed no reliability data are left out entirely rather than counted as zero.