Westborough, MA solar installation & market data
Updated June 28, 2023Older data · growth withheldProvisional score · under 500 installs By The SolarDNA Data Team
Westborough has 422 solar installations across 1 zip code at a median installed cost of $4.04/W, recent growth not yet measurable, and an installs-weighted Market Score of 48.
Active installations
422
Zip markets
1
Median cost
$4.04/W
12-mo growth
—
Installers active
12
City Market Score
Great · installs-weighted across 1 zips
Best zip in Westborough scores higher than 79% of U.S. zip markets.
Versus Massachusetts
How Westborough compares with the state
Installed cost
$0.13/W below
state median $4.17/W
Market score
48 vs 58
Massachusetts scores 58
Share of state installs
0.30%
of 142.6K tracked statewide
Battery attach
5.2%
state 3.1%
Statewide momentum
▲ 22.8%
residential solar added in Massachusetts, 12 months through Jul 2026
Statewide market
233.7K systems
13.3% of homes · utility-reported through Jul 2026
Growth & pricing
Westborough by year
11 installs in the trailing twelve months vs 21 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in Westborough
Summed across every zip in the city
| # | Installer | Installs | 12-mo | Zips | $/W |
|---|---|---|---|---|---|
| 1 | SUNRUN | 110 | 2 | 1 | $3.91 |
| 2 | TESLA | 86 | 1 | 1 | $5.15 |
| 3 | SUNGEVITY | 23 | 0 | 1 | $3.63 |
| 4 | TRINITY SOLAR | 20 | 0 | 1 | $3.56 |
| 5 | DIRECT ENERGY SOLAR | 15 | 0 | 1 | $4.22 |
| 6 | SOLARFLAIR ENERGY | 12 | 0 | 1 | $3.35 |
| 7 | ENDLESS MTN SOLAR SERVICES | 10 | 0 | 1 | $5.04 |
| 8 | NEW ENGLAND CLEAN ENERGY | 10 | 0 | 1 | $4.73 |
| 9 | NEXT STEP LIVING | 10 | 0 | 1 | $6.86 |
| 10 | BOSTON SOLAR | 9 | 0 | 1 | $3.26 |
| 11 | BRIGHTSTAR SOLAR | 7 | 0 | 1 | $2.80 |
| 12 | ENERGY MONSTER | 6 | 0 | 1 | $3.18 |
Zip markets
Zips in Westborough
Ranked by installations · click for the zip market
| Zip | Installs | $/W | Score |
|---|---|---|---|
| 01581 | 422 | $4.04 | 48 B |