Solar installers and cost in New Hampshire
Homes that bought solar in 2023–2025 paid a median $3.58/W installed, about $35,800 for a typical 10 kW system. 60 installers have put in home systems here since 2023. Find the ones working in your county.
Solar by county
Median installed price where enough systems were bought outright (2023–2025). Lighter is cheaper. Choose a county for its installers.
Solar installers in New Hampshire
Ranked by homes installed, which shows who’s active here, not who’s best. Prices are each company’s median for systems sold outright, shown when it sold at least 10.
| County | Median price | Installers | Homes since 2023 |
|---|---|---|---|
| Belknap County | — | 21 | 51 |
| Carroll County | — | 20 | 63 |
| Cheshire County | — | 11 | 29 |
| Coos County | — | 4 | 7 |
| Grafton County | $4.36/W | 21 | 107 |
| Hillsborough County | $3.59/W | 20 | 158 |
| Merrimack County | $3.36/W | 21 | 112 |
| Rockingham County | $3.37/W | 32 | 218 |
| Strafford County | $3.53/W | 14 | 57 |
| Sullivan County | $4.50/W | 15 | 48 |
A county shows a price once at least 20 of its systems were bought outright.
How much does solar cost in New Hampshire?
Homes in New Hampshire that bought a solar system in 2023–2025 paid a median $3.58/W installed, about $35,800 for a 10 kW system, before incentives. The middle half paid $3.08/W to $4.52/W.
Who are the most active solar installers in New Hampshire?
By homes installed since 2023, the most active installers in New Hampshire are ReVision Energy, Granite State Solar, All Energy Solar, Venture Home Solar, Solaflect Energy. Being busiest doesn't make a company the best choice: get several quotes and compare price per watt, equipment and warranty.
How much does a 10 kW solar system cost in New Hampshire?
At the New Hampshire median of $3.58/W, a 10 kW system costs about $35,800 installed before incentives; the middle half of buyers would pay $30,800 to $45,200.
Installed prices and installers from public installation records: Lawrence Berkeley National Laboratory’s Tracking the Sun (systems installed through 2025) and state program files from California, New York, New Jersey, Connecticut, Illinois and Oregon, which run into 2026. Prices are in dollars per watt of panel capacity (DC), before rebates and tax credits, for homes that bought their system; leased systems and systems with batteries are left out.