Solar installations in Grafton County, NH
105 recorded installations in Grafton County, New Hampshire — capacity, prices and the installers doing the work.
At a glance
Grafton County, New Hampshire has 105 recorded solar installations totalling 6.0 MW of capacity — the 2nd-highest count among the 10 New Hampshire counties with records, and under 1% of the state total. That is about 0.20% of the county's 51,478 housing units, against 1.7% statewide. The median installed price is $2.89/W before incentives, about 15% below the New Hampshire median of $3.40/W.
Dataset updated . Sources: LBNL Tracking the Sun + city permit records + state programs + USGS/EIA utility-scale.
Search every recorded installation in Grafton County by installer, size, date and equipment.
Search sites →Independent check: Stanford's DeepSolar detected about 469 solar arrays here from 2018 satellite imagery — our recorded data covers roughly 22% of that (this county is under-reported in public program data). A yardstick, not dated records.
Most active
Top installers in Grafton County
| # | Installer | Installs here |
|---|---|---|
| 1 | Revision Energy | 34 |
| 2 | Norwich Technology | 9 |
| 3 | Parei | 8 |
| 4 | Plymouth Solar Energy | 8 |
| 5 | Tg Design | 6 |
| 6 | Energy Emporium | 6 |
| 7 | Barrington Power | 5 |
| 8 | Frase Electric | 5 |
| 9 | Sunray Solarnh | 4 |
| 10 | Gosolar Ne | 3 |
Growth
Installations by year
How does Grafton County compare with the rest of New Hampshire?
The median recorded system in Grafton County is 23.92 kW, about 2.9 times the state median of 8.25 kW. By share of housing units with a recorded system, Grafton County ranks 1st of 10 New Hampshire counties with at least 10 installations.
How has solar adoption changed in Grafton County?
The earliest recorded installation in Grafton County dates to 2011. The busiest year on record is 2019, with 19 installations. 2023 has 4 recorded installations so far. The county's cumulative total rose from 62 at the end of 2018 to 105 today. Recent years fill in as state programs and permit offices report, so the latest counts are provisional.
Who installs solar in Grafton County?
Revision Energy has the most recorded installations in Grafton County (34, 32% of the county's records). Other active installers here include Norwich Technology, Parei and Plymouth Solar Energy. Installers based anywhere in New Hampshire are listed in the state installer directory.
Frequently asked questions
How many homes have solar in Grafton County?
PanelCensus records 105 solar installations in Grafton County, New Hampshire (6.0 MW of capacity) — about 0.20% of the county's 51,478 housing units (U.S. Census ACS). Coverage depends on New Hampshire's public reporting, so the true total is likely higher.
How much does solar cost in Grafton County?
The median installed price for recorded systems in Grafton County is $2.89/W before incentives; the median system is 23.9 kW. The New Hampshire median is $3.40/W.
Who installs solar in Grafton County?
The most active recorded installers in Grafton County are Revision Energy (34), Norwich Technology (9) and Parei (8).
How big is a typical solar system in Grafton County?
The median recorded system in Grafton County is 23.9 kW, against 8.3 kW for New Hampshire as a whole.
More solar data near Grafton County
- Solar in New Hampshire· 11,059 installations
- Solar installers in New Hampshire
- Solar in Rockingham County· 144 installations
- Solar in Merrimack County· 97 installations
- Solar in Hillsborough County· 95 installations
- Solar in Strafford County· 74 installations
- Solar in Cheshire County· 52 installations
- Solar in Sullivan County· 36 installations
County assignment is derived from installation ZIP codes via the Census 2020 ZCTA↔county crosswalk (primary county by land-area overlap) — approximate at county boundaries. Market penetration = recorded installations ÷ housing units (U.S. Census Bureau ACS 5-Year, Table B25001); it undercounts where dataset coverage is partial. See methodology.
About this data
Source: Lawrence Berkeley National Laboratory's Tracking the Sun, merged with city permit records, state incentive programs and the USGS U.S. Large-Scale Solar Photovoltaic Database / EIA-860 plant registers, as published October 29, 2026 — PanelCensus refreshes it as each source publishes new records. See the methodology for how records are matched, cleaned and scored.
Cite as: PanelCensus, “Solar installations in Grafton County, New Hampshire”, https://panelcensus.com/solar/new-hampshire/grafton-county (data as of October 29, 2026).