Solar installations in Berkshire County, MA
104 recorded installations in Berkshire County, Massachusetts — capacity, prices and the installers doing the work.
At a glance
Berkshire County, Massachusetts has 104 recorded solar installations totalling 247.6 MW of capacity — the 9th-highest count among the 14 Massachusetts counties with records, and under 1% of the state total. That is about 0.15% of the county's 69,861 housing units, against 5.3% statewide.
Dataset updated . Sources: LBNL Tracking the Sun + city permit records + state programs + USGS/EIA utility-scale.
Severe-weather exposure: solar sites here have been matched to an average of 5.1 hail and 3.4 high-wind NOAA storm events — a regional inspection/maintenance signal (proximity, not confirmed damage).
Search every recorded installation in Berkshire County by installer, size, date and equipment.
Search sites →Independent check:Stanford's DeepSolar detected about 2,887 solar arrays here from 2018 satellite imagery — our recorded data covers roughly 4% of that (this county is under-reported in public program data). A yardstick, not dated records.
Most active
Top installers in Berkshire County
Growth
Installations by year
How does Berkshire County compare with the rest of Massachusetts?
The median recorded system in Berkshire County is 1700 kW, about 227 times the state median of 7.48 kW. 4% of installations here are third-party owned (lease or power-purchase agreement), compared with 47% across Massachusetts. 3 systems (3%) of the county's records include battery storage, against 4% statewide. By share of housing units with a recorded system, Berkshire County ranks 5th of 13 Massachusetts counties with at least 10 installations. Fewer than 30 systems here report an installed price, so no county price median is published.
How has solar adoption changed in Berkshire County?
The earliest recorded installation in Berkshire County dates to 2010. The busiest year on record is 2017, with 26 installations. 2024 has 5 recorded installations so far. The county's cumulative total rose from 60 at the end of 2019 to 104 today. Recent years fill in as state programs and permit offices report, so the latest counts are provisional.
Who installs solar in Berkshire County?
Nexamp has the most recorded installations in Berkshire County (4). Other active installers here include Berry Construction, Borrego Solar and bvd solar, llc. Installers based anywhere in Massachusetts are listed in the state installer directory.
Frequently asked questions
How many homes have solar in Berkshire County?
PanelCensus records 104 solar installations in Berkshire County, Massachusetts (247.6 MW of capacity) — about 0.15% of the county's 69,861 housing units (U.S. Census ACS). Coverage depends on Massachusetts's public reporting, so the true total is likely higher.
Who installs solar in Berkshire County?
The most active recorded installers in Berkshire County are Nexamp (4), Berry Construction (4) and Borrego Solar (3).
How much of the solar in Berkshire County is leased?
4 recorded installations (4%) in Berkshire County are third-party owned — a lease or power-purchase agreement, compared with 47% across Massachusetts.
How big is a typical solar system in Berkshire County?
The median recorded system in Berkshire County is 1,700 kW, against 7.5 kW for Massachusetts as a whole.
More solar data near Berkshire County
- Solar in Massachusetts· 159,700 installations
- Solar installers in Massachusetts
- Solar in Essex County· 167 installations
- Solar in Hampden County· 147 installations
- Solar in Norfolk County· 139 installations
- Solar in Hampshire County· 82 installations
- Solar in Barnstable County· 60 installations
- Solar in Franklin County· 59 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 10, 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 Berkshire County, Massachusetts”, https://panelcensus.com/solar/massachusetts/berkshire-county (data as of October 10, 2026).