Westfield, MA solar installation & market data
Updated October 6, 2022Older data · growth withheldProvisional score · under 500 installs By The SolarDNA Data Team
Westfield has 56 solar installations across 2 zip codes at a median installed cost of $4.31/W, recent growth not yet measurable, and an installs-weighted Market Score of 45.
Active installations
56
Zip markets
2
Median cost
$4.31/W
12-mo growth
—
Installers active
30
City Market Score
Good · installs-weighted across 2 zips
Best zip in Westfield scores higher than 66% of U.S. zip markets.
Versus Massachusetts
How Westfield compares with the state
Installed cost
$0.15/W above
state median $4.17/W
Market score
45 vs 58
Massachusetts scores 58
Share of state installs
0.04%
of 142.6K tracked statewide
Battery attach
0.0%
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
Westfield by year
4 installs in the trailing twelve months vs 1 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in Westfield
Summed across every zip in the city
| # | Installer | Installs | 12-mo | Zips | $/W |
|---|---|---|---|---|---|
| 1 | RGS ENERGY | 8 | 0 | 1 | $4.57 |
| 2 | PARADISE ENERGY SOLUTIONS | 5 | 0 | 1 | $4.51 |
| 3 | ENDLESS MTN SOLAR SERVICES | 5 | 0 | 1 | $4.65 |
| 4 | NORTHEAST SOLAR DESIGN ASSOCIATES | 3 | 0 | 1 | $3.98 |
| 5 | SUNRUN | 3 | 0 | 1 | $4.19 |
| 6 | ELM ELECTRIC | 3 | 0 | 1 | $4.66 |
| 7 | DIRECT ENERGY SOLAR | 2 | 0 | 1 | $4.04 |
| 8 | TRINITY SOLAR | 2 | 0 | 1 | $4.51 |
| 9 | OSTROW ELECTRIC | 2 | 0 | 1 | $4.64 |
| 10 | GREEN EARTH ENERGY | 2 | 0 | 1 | $4.01 |
| 11 | PV SQUARED | 2 | 0 | 1 | $5.18 |
| 12 | UNITED SOLAR ASSOCIATES | 1 | 0 | 1 | $3.00 |
| 13 | EARTHLIGHT TECHNOLOGIES | 1 | 0 | 1 | $4.00 |
| 14 | SUNGEVITY | 1 | 0 | 1 | $3.70 |
| 15 | VALLEY SOLAR AND WATER | 1 | 0 | 1 | $5.55 |
| 16 | SOLAR WOLF ENERGY | 1 | 0 | 1 | $4.31 |
| 17 | GEHRLICHER SOLAR AMERICA | 1 | 0 | 1 | $2.50 |
| 18 | INSIGHT SOLAR | 1 | 0 | 1 | $4.30 |
| 19 | ACE RESIDENTIAL SOLAR | 1 | 0 | 1 | $3.70 |
| 20 | RYAN SOLAR | 1 | 0 | 1 | $2.37 |
| 21 | DEVLIN CONTRACTING MAINTENANCE | 1 | 0 | 1 | $4.41 |
| 22 | ROSS SOLAR GROUP | 1 | 0 | 1 | $4.78 |
| 23 | GREEN STREET POWER PARTNERS | 1 | 0 | 1 | $3.02 |
| 24 | FIRSTMARK ADVANTAGE | 1 | 0 | 1 | $5.71 |
| 25 | ALEKSANDR MARTYNENKO | 1 | 0 | 1 | $1.97 |