Electric companies in New Hampshire
9 electric utilities serve New Hampshire, according to US EIA-861 service-territory filings and live outage feeds. The largest by customers is Public Service Co of NH, with about 546,815 customers in New Hampshire (US EIA-861, 2025). About 42% of the customers on file (327,636) 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 New Hampshire
Largest first, by customers on its lines in New Hampshire (US EIA-861, 2025). “Live” is whether MassOutage can see its outages.
| Utility | Type | Customers | Counties | Live | Report an outage |
|---|---|---|---|---|---|
| Public Service Co of NH | Investor Owned | 546,815 | 10 | Live · county | - |
| New Hampshire Elec Coop Inc | Cooperative | 85,428 | 9 | Live · county | - |
| Unitil Energy Systems | Investor Owned | 82,001 | 2 | Outages only | - |
| Liberty Utilities (Granite State Electri | Investor Owned | 47,264 | 5 | No live feed | - |
| Town of Wolfeboro - (NH) | - | 6,031 | 2 | No live feed | - |
| Town of Littleton - (NH) | - | 4,064 | 1 | No live feed | - |
| Town of Ashland | - | 1,705 | 1 | No live feed | - |
| Precinct of Woodsville | - | 1,151 | 1 | No live feed | - |
| New Hampton Village Precinct | - | 82 | 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.
- Belknap County
- Public Service Co of NH, New Hampshire Elec Coop Inc, Town of Wolfeboro - (NH), New Hampton Village Precinct
- Cheshire County
- Public Service Co of NH, New Hampshire Elec Coop Inc, Liberty Utilities (Granite State Electri
- Grafton County
- Public Service Co of NH, New Hampshire Elec Coop Inc, Liberty Utilities (Granite State Electri, Town of Littleton - (NH), Town of Ashland, Precinct of Woodsville
Electric companies in New Hampshire: FAQ
- How many electric companies serve New Hampshire?
- 9 electric utilities serve New Hampshire, according to US EIA-861 service-territory filings and live outage feeds.
- What is the largest electric company in New Hampshire?
- Public Service Co of NH, with about 546,815 customers in New Hampshire (US EIA-861, 2025).
- Which electric company serves my address in New Hampshire?
- Your electric bill names it. Service territory is filed by county, so MassOutage lists the utilities serving each New Hampshire 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 New Hampshire?
- Your electric utility. MassOutage has an outage phone line, report page or outage map on file for 0 of the 9 utilities serving New Hampshire, 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 New Hampshire →
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.