Electric companies in Massachusetts
48 electric utilities serve Massachusetts, according to US EIA-861 service-territory filings and live outage feeds. The largest by customers is NSTAR Electric Company, with about 1,483,523 customers in Massachusetts (US EIA-861, 2025). About 62% of the customers on file (2,095,833) buy their electricity from a separate retail supplier; the utility listed here still delivers it and restores outages.
Territory is filed by county, so a county can list several utilities; usually only one serves a given address, and your electric bill names it.
Find yours by ZIP code
Every electric utility in Massachusetts
Largest first, by customers on its lines in Massachusetts (US EIA-861, 2025). “Live” is whether MassOutage can see its outages.
| Utility | Type | Customers | Counties | Live | Report an outage |
|---|---|---|---|---|---|
| NSTAR Electric Company | Investor Owned | 1,483,523 | 11 | Live · county | - |
| Massachusetts Electric Co | Investor Owned | 1,399,920 | 13 | Live · county | - |
| City of Taunton - (MA) | Municipal | 40,045 | 1 | No live feed | - |
| Fitchburg Gas & Elec Light Co | Investor Owned | 31,053 | 2 | Live · county | - |
| Town of Reading - (MA) | Municipal | 28,337 | 2 | Live · county | - |
| City of Peabody - (MA) | - | 27,251 | 1 | No live feed | - |
| City of Chicopee - (MA) | Municipal | 26,077 | 1 | Live · county | - |
| City of Westfield - (MA) | Municipal | 18,551 | 1 | Live · county | - |
| Town of Middleborough - (MA) | Municipal | 18,223 | 1 | Live · county | - |
| City of Holyoke - (MA) | Municipal | 17,953 | 1 | Live · county | - |
| Town of Shrewsbury - (MA) | Municipal | 16,851 | 1 | No live feed | - |
| Town of Braintree - (MA) | Municipal | 16,812 | 1 | Live · county | - |
| City of Norwood - (MA) | Municipal | 15,812 | 1 | Live · county | - |
| Nantucket Electric Co | Investor Owned | 14,693 | 1 | Live · county | - |
| Town of Wakefield - (MA) | - | 14,219 | 1 | Live · county | - |
| Town of North Attleborough - (MA) | Municipal | 13,934 | 1 | No live feed | - |
| Town of Hudson - (MA) | Municipal | 13,639 | 1 | Live · county | - |
| Town of Danvers | Municipal | 13,594 | 1 | Live · county | - |
| Town of Belmont - (MA) | Municipal | 11,899 | 1 | No live feed | - |
| Town of Mansfield - (MA) | Municipal | 10,570 | 1 | Live · county | - |
| Town of Wellesley - (MA) | Municipal | 10,569 | 1 | No live feed | - |
| City of Marblehead - (MA) | Municipal | 10,289 | 1 | No live feed | - |
| City of Hingham - (MA) | Municipal | 10,162 | 1 | Live · county | - |
| Town of Holden - (MA) | - | 8,609 | 1 | No live feed | - |
| Town of Concord - (MA) | - | 8,366 | 1 | Live · county | - |
| Town of South Hadley - (MA) | Municipal | 8,314 | 1 | No live feed | - |
| Town of Littleton - (MA) | - | 7,618 | 1 | Live · county | - |
| Town of Ipswich - (MA) | Municipal | 7,295 | 1 | No live feed | - |
| Hull Municipal Light Plant - (MA) | - | 6,232 | 1 | No live feed | - |
| Town of Groton - (MA) | Municipal | 5,010 | 1 | No live feed | - |
| Town of Sterling - (MA) | Municipal | 4,187 | 1 | No live feed | - |
| Town of Middleton - (MA) | - | 4,025 | 1 | No live feed | - |
| Town of Templeton - (MA) | - | 3,814 | 1 | Live · county | - |
| Town of West Boylston - (MA) | - | 3,785 | 1 | No live feed | - |
| Town of Georgetown - (MA) | - | 3,536 | 1 | No live feed | - |
| Town of Ashburnham - (MA) | Municipal | 3,220 | 1 | No live feed | - |
| Town of Rowley - (MA) | Municipal | 3,106 | 1 | No live feed | - |
| Town of Merrimac - (MA) | Municipal | 3,092 | 1 | No live feed | - |
| Town of Groveland - (MA) | - | 3,058 | 1 | No live feed | - |
| Town of Boylston - (MA) | - | 2,584 | 1 | No live feed | - |
| Town of Paxton - (MA) | - | 1,966 | 1 | No live feed | - |
| Town of Princeton - (MA) | - | 1,554 | 1 | No live feed | - |
| Town of Chester | - | 755 | 2 | No live feed | - |
| City of Russell - (MA) | - | 468 | 1 | No live feed | - |
| Massachusetts Bay Trans Authority | - | - | 3 | No live feed | - |
| Unitil Energy Systems | Investor Owned | - | 2 | Outages only | - |
| AVANGRID | - | - | 1 | Outages only | - |
| University of Massachusetts Amherst | - | - | 1 | No live feed | - |
Electric utilities by county
Each county's utilities, largest in the state first. The county name opens its live outage page.
- Bristol County
- NSTAR Electric Company, Massachusetts Electric Co, City of Taunton - (MA), Town of North Attleborough - (MA), Town of Mansfield - (MA)
- Essex County
- Massachusetts Electric Co, Town of Reading - (MA), City of Peabody - (MA), Town of Danvers, City of Marblehead - (MA), Town of Ipswich - (MA), Town of Middleton - (MA), Town of Georgetown - (MA), Town of Rowley - (MA), Town of Merrimac - (MA), Town of Groveland - (MA)
- Hampden County
- NSTAR Electric Company, Massachusetts Electric Co, City of Chicopee - (MA), City of Westfield - (MA), City of Holyoke - (MA), Town of Chester, City of Russell - (MA)
- Hampshire County
- NSTAR Electric Company, Massachusetts Electric Co, Town of South Hadley - (MA), University of Massachusetts Amherst
- Middlesex County
- NSTAR Electric Company, Massachusetts Electric Co, Fitchburg Gas & Elec Light Co, Town of Reading - (MA), Town of Wakefield - (MA), Town of Hudson - (MA), Town of Belmont - (MA), Town of Concord - (MA), Town of Littleton - (MA), Town of Groton - (MA), Massachusetts Bay Trans Authority, Unitil Energy Systems
- Norfolk County
- NSTAR Electric Company, Massachusetts Electric Co, Town of Braintree - (MA), City of Norwood - (MA), Town of Wellesley - (MA), Massachusetts Bay Trans Authority
- Plymouth County
- NSTAR Electric Company, Massachusetts Electric Co, Town of Middleborough - (MA), City of Hingham - (MA), Hull Municipal Light Plant - (MA)
- Worcester County
- Massachusetts Electric Co, Fitchburg Gas & Elec Light Co, Town of Shrewsbury - (MA), Town of Holden - (MA), Town of Sterling - (MA), Town of Templeton - (MA), Town of West Boylston - (MA), Town of Ashburnham - (MA), Town of Boylston - (MA), Town of Paxton - (MA), Town of Princeton - (MA), Unitil Energy Systems
Electric companies in Massachusetts: FAQ
- How many electric companies serve Massachusetts?
- 48 electric utilities serve Massachusetts, according to US EIA-861 service-territory filings and live outage feeds.
- What is the largest electric company in Massachusetts?
- NSTAR Electric Company, with about 1,483,523 customers in Massachusetts (US EIA-861, 2025).
- Which electric company serves my address in Massachusetts?
- Your electric bill names it. Service territory is filed by county, so MassOutage lists the utilities serving each Massachusetts county; usually only one of them serves a given address, and a utility can tell you whether it serves yours.
- Who do I call to report a power outage in Massachusetts?
- Your electric utility. MassOutage has an outage phone line, report page or outage map on file for 0 of the 48 utilities serving Massachusetts, listed above; for the others, check your bill or the utility's website. For a downed power line, stay at least 35 feet away and call 911.
Live power outages in Massachusetts →
Data from EIA Form 861 (utility reliability), every source we read. Service territory and customer counts are each utility's own EIA-861 filing; a utility a live outage feed has reported in a county is listed there too.