Hampden County, MA solar installation & market data
Updated December 31, 2024Older data · growth withheld By The SolarDNA Data Team
Hampden County has 8,009 solar installations across 44 zip codes at a median installed cost of $4.04/W, recent growth not yet measurable, and an installs-weighted Market Score of 48.
Active installations
8,009
Zip markets
44
Median cost
$4.04/W
12-mo growth
—
Installers active
220
County Market Score
Great · installs-weighted across 44 zips
Best zip in Hampden County scores higher than 93% of U.S. zip markets.
Versus Massachusetts
How Hampden County 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
5.61%
of 142.6K tracked statewide
Battery attach
2.4%
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
Hampden County by year
751 installs in the trailing twelve months vs 744 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in Hampden County
Summed across every zip in the county
| # | Installer | Installs | 12-mo | Zips | $/W |
|---|---|---|---|---|---|
| 1 | SUNRUN | 3,514 | 72 | 32 | $3.95 |
| 2 | TRINITY SOLAR | 1,205 | 5 | 32 | $3.83 |
| 3 | TESLA | 840 | 8 | 27 | $5.15 |
| 4 | ROOF DIAGNOSTICS SOLAR | 247 | 0 | 28 | $3.52 |
| 5 | ALL ENERGY SOLAR | 161 | 0 | 25 | $3.71 |
| 6 | GREEN EARTH ENERGY | 135 | 0 | 26 | $3.75 |
| 7 | BRIGHT PLANET SOLAR | 131 | 0 | 26 | $3.92 |
| 8 | FREEDOM FOREVER | 130 | 8 | 23 | $3.87 |
| 9 | RGS ENERGY | 100 | 0 | 25 | $4.58 |
| 10 | DEVLIN CONTRACTING MAINTENANCE | 88 | 1 | 23 | $4.61 |
| 11 | DIRECT ENERGY SOLAR | 82 | 0 | 22 | $4.03 |
| 12 | EARTHLIGHT TECHNOLOGIES | 74 | 6 | 23 | $4.14 |
| 13 | NORTHEAST SOLAR DESIGN ASSOCIATES | 72 | 0 | 23 | $3.92 |
| 14 | ENDLESS MTN SOLAR SERVICES | 69 | 0 | 24 | $5.03 |
| 15 | REVOLUSUN | 56 | 0 | 17 | $4.03 |
| 16 | PV SQUARED | 52 | 0 | 20 | $4.84 |
| 17 | SOLARFLAIR ENERGY | 44 | 0 | 9 | $2.88 |
| 18 | SUNGEVITY | 43 | 0 | 16 | $3.37 |
| 19 | VISION SOLAR | 41 | 20 | 15 | $3.97 |
| 20 | CTEC SOLAR | 38 | 0 | 15 | $3.69 |
| 21 | VALLEY SOLAR AND WATER | 38 | 3 | 17 | $4.50 |
| 22 | SUNBUG SOLAR | 36 | 0 | 15 | $3.40 |
| 23 | SKYLINE SOLAR | 33 | 1 | 15 | $4.49 |
| 24 | PALMETTO SOLAR | 31 | 1 | 16 | $4.15 |
| 25 | 1ST LIGHT ENERGY | 26 | 0 | 14 | $3.77 |
Zip markets
Zips in Hampden County
Ranked by installations · click for the zip market
| Zip | Installs | $/W | Score |
|---|---|---|---|
| 01089 | 662 | $3.99 | 49 B |
| 01056 | 634 | $4.23 | 48 B |
| 01118 | 556 | $3.99 | 49 B |
| 01028 | 554 | $4.23 | 47 B |
| 01119 | 484 | $3.95 | 48 B |
| 01104 | 479 | $3.76 | 49 B |
| 01109 | 472 | $3.81 | 49 B |
| 01095 | 409 | $4.26 | 47 B |
| 01001 | 398 | $4.01 | 48 B |
| 01030 | 382 | $4.20 | 47 B |
| 01057 | 356 | $4.16 | 47 B |
| 01106 | 348 | $4.16 | 47 B |
| 01129 | 316 | $4.00 | 47 B |
| 01069 | 262 | $4.20 | 46 B |
| 01108 | 250 | $4.05 | 47 B |
| 01077 | 242 | $3.87 | 48 B |
| 01036 | 170 | $4.10 | 46 B |
| 01151 | 166 | $3.68 | 48 B |
| 01128 | 129 | $3.69 | 48 B |
| 01010 | 127 | $4.16 | 46 B |
| 01034 | 88 | $4.20 | 45 C |
| 01107 | 85 | $3.86 | 47 B |
| 01080 | 59 | $4.28 | 45 C |
| 01008 | 55 | $3.91 | 46 B |
| 01085 | 54 | $4.30 | 45 C |
| 01521 | 41 | $4.18 | 45 C |
| 01105 | 37 | $3.65 | 48 B |
| 01081 | 35 | $3.76 | 47 B |
| 01009 | 32 | $4.21 | 45 C |
| 01040 | 29 | $3.99 | 46 B |
| 01079 | 24 | $4.45 | 44 C |
| 01071 | 24 | $3.84 | 47 B |
| 01020 | 14 | $3.46 | 48 B |
| 01011 | 11 | $4.65 | 43 C |
| 01013 | 9 | $3.63 | 48 B |
| 01103 | 4 | $2.81 | 51 A |
| 01097 | 2 | $5.64 | 38 D |
| 01101 | 2 | $5.18 | 40 C |
| 01111 | 2 | $5.94 | 37 D |
| 01086 | 2 | $4.64 | 43 C |
| 01022 | 1 | $5.14 | 40 C |
| 01102 | 1 | $8.74 | 35 D |
| 01199 | 1 | $3.34 | 49 B |
| 01021 | 1 | $3.22 | 50 B |