Solar installers in Massachusetts
450 profiled installers based in Massachusetts, plus the national companies most active in the state — volume, prices and ownership mix from public data.
Dataset updated . Sources: LBNL Tracking the Sun + city permit records + state programs + USGS/EIA utility-scale.
Installers based here
450
Recorded installs
159,720
State capacity
8.6 GW
Median price
$4.15/W
pre-incentive
Any headquarters
Most active in Massachusetts
| # | Installer | Installs in MA |
|---|---|---|
| 1 | Sunrun | 37,343 |
| 2 | Tesla | 23,157 |
| 3 | Trinity Solar | 12,488 |
| 4 | Direct Energy Solar | 3,362 |
| 5 | Roof Diagnostics Solar | 3,086 |
| 6 | Boston Solar | 3,051 |
| 7 | Sungevity | 2,797 |
| 8 | Sunbug Solar | 2,458 |
| 9 | Next Step Living | 2,360 |
| 10 | Rgs Energy | 2,045 |
| 11 | Revolusun | 1,680 |
| 12 | Freedom Forever | 1,671 |
| 13 | Pv Squared | 1,623 |
| 14 | Solarflair Energy | 1,621 |
| 15 | My Generation Energy | 1,325 |
Based in the state
Installers headquartered in Massachusetts
| Installer | Installs | Capacity | Median $/W | TPO | Active since |
|---|---|---|---|---|---|
| Direct Energy Solar Formerly Astrum | 5,899 | 55.3 MW | $3.89/W | 18% | 2010 |
| Direct Energy Solar | 5,882 | 54.5 MW | $1.16/W | 0% | 2010 |
| Roof Diagnostics Solar | 4,115 | 27.3 MW | $3.55/W | 76% | 2012 |
| Skyline Solar | 3,257 | 29.5 MW | $3.56/W | 0% | 2010 |
| Boston Solar | 2,996 | 34.6 MW | $3.76/W | 3% | 2012 |
| Palmetto Solar | 2,918 | 24.4 MW | $4.00/W | 33% | 2017 |
| Next Step Living | 2,473 | 14.1 MW | $6.50/W | 1% | 2012 |
| Sunbug Solar | 2,386 | 32.2 MW | $3.99/W | 2% | 2009 |
| Revolusun | 1,797 | 17.8 MW | $4.18/W | 3% | 2011 |
| Pv Squared | 1,643 | 20.3 MW | $4.59/W | 1% | 2003 |
| Solarflair Energy | 1,636 | 26.5 MW | $3.59/W | 1% | 2008 |
| My Generation Energy | 1,317 | 18.3 MW | $3.68/W | 1% | 2009 |
| New England Clean Energy | 1,310 | 12.2 MW | $4.64/W | 0% | 2007 |
| Northeast Solar Design Associates | 1,244 | 15.3 MW | $3.99/W | 2% | 2004 |
| Cotuit Solar | 1,052 | 12.0 MW | $3.58/W | 0% | 2006 |
| Isaksen Solar | 977 | 11.5 MW | $3.89/W | 5% | 2017 |
| E2 Solar | 949 | 7.7 MW | $4.85/W | 0% | 2007 |
| Endless Mtn Solar Services | 949 | 8.2 MW | $5.38/W | 1% | 2009 |
| Great Sky Solar | 836 | 8.2 MW | $3.12/W | 0% | 2011 |
| Second Generation Energy | 820 | 13.0 MW | $3.55/W | 5% | 2008 |
| Solar Rising | 782 | 7.5 MW | $3.35/W | 2% | 2013 |
| Summit Energy Group | 773 | 42.6 MW | $4.58/W | 22% | 2004 |
| Devlin Contracting Maintenance | 763 | 7.0 MW | $4.37/W | 47% | 2018 |
| Ameresco | 745 | 272.1 MW | $3.43/W | 17% | 2005 |
| Solect Energy | 739 | 137.3 MW | $2.87/W | 23% | 2011 |
| Mass Renewables | 643 | 6.3 MW | $3.84/W | 1% | 2009 |
| Ace Residential Solar | 627 | 9.5 MW | $3.25/W | 1% | 2015 |
| Blue Selenium Solar | 607 | 5.2 MW | $5.19/W | 1% | 2010 |
| Invaleon Technologies | 558 | 19.2 MW | $3.20/W | 3% | 2012 |
| Green Earth Energy Photovoltaic | 535 | 26.0 MW | $3.80/W | 5% | 2010 |
| Cazeault Solar | 533 | 4.2 MW | $3.98/W | 0% | 2013 |
| Brightstar Solar | 525 | 5.2 MW | $3.36/W | 0% | 2010 |
| Nuwatt Energy | 504 | 4.8 MW | $3.22/W | 3% | 2011 |
| South Mountain Company | 500 | 5.4 MW | $4.97/W | 0% | 2007 |
| Solar Wolf Energy | 466 | 3.9 MW | $4.19/W | 0% | 2016 |
| Solar Five | 428 | 3.5 MW | $4.40/W | 31% | 2015 |
| Kyle Greene | 406 | 3.1 MW | — | 0% | 2016 |
| Stephen Kelly | 382 | 9.2 MW | $1.90/W | 0% | 2015 |
| Vantage Solar | 368 | 3.7 MW | $3.04/W | 20% | 2014 |
| Solar Store Of Greenfield | 340 | 2.6 MW | $4.16/W | 1% | 2006 |
| Nexamp | 310 | 574.2 MW | $2.38/W | 40% | 2008 |
| United Solar Associates | 307 | 5.6 MW | $3.99/W | 24% | 2010 |
| Energy Monster | 277 | 2.8 MW | $3.10/W | 1% | 2015 |
| Berkshire Photovoltaic Services Bpvs | 274 | 1.4 MW | $7.06/W | 0% | 2003 |
| Clean Energy Design | 262 | 3.9 MW | $4.25/W | 0% | 2005 |
| Fullers Energy | 255 | 2.7 MW | $5.65/W | 0% | 2011 |
| Certified Safe Electric | 246 | 2.2 MW | $3.57/W | 7% | 2009 |
| Insight Solar | 244 | 2.5 MW | $4.13/W | 20% | 2019 |
| Ace Solar | 228 | 9.7 MW | $3.22/W | 9% | 2015 |
| Sunwind Solutions | 226 | 2.2 MW | $3.46/W | 0% | 2010 |
| NATHAN ASHE | 219 | 6.4 MW | — | 0% | 2017 |
| Independent Power Systems | 216 | 3.7 MW | $5.05/W | 0% | 2008 |
| Rayah Solar | 207 | 3.5 MW | $3.98/W | 16% | 2015 |
| Empower Energy Solutions | 201 | 1.7 MW | $5.93/W | 0% | 2014 |
| Team Sunshine Construction | 195 | 1.9 MW | $5.15/W | 6% | 2022 |
| Southern Light Solar | 193 | 3.3 MW | $3.50/W | 2% | 2013 |
| Bay State Solar | 192 | 2.8 MW | $4.25/W | 42% | 2013 |
| Transformations | 190 | 1.5 MW | $5.57/W | 4% | 2005 |
| Philip Kapitan | 190 | 1.6 MW | $3.60/W | 0% | 2020 |
| Beaumont Solar | 183 | 33.7 MW | $3.55/W | 5% | 2008 |
| Acushnet Alternative Heating | 183 | 1.9 MW | $3.00/W | 0% | 2013 |
| Sunlight Solar Ca | 182 | 1.0 MW | $4.50/W | 3% | 2004 |
| Ino Electrical Service | 181 | 4.1 MW | $3.38/W | 1% | 2010 |
| Plymouth Solar Energy | 180 | 2.1 MW | $4.15/W | 1% | 2011 |
| Alternate Energy | 179 | 1.4 MW | $3.78/W | 3% | 2004 |
| Rexel Energy Solutions | 176 | 7.6 MW | $4.29/W | 1% | 2011 |
| Beacon Solar | 169 | 2.4 MW | $4.20/W | 2% | 2017 |
| Crius Solar | 164 | 1.2 MW | $4.20/W | 13% | 2017 |
| Stephen A Kelly | 163 | 1.1 MW | — | 0% | 2022 |
| Reliable Solar Solutions | 156 | 1.5 MW | $3.53/W | 0% | 2015 |
| Endless Energy | 155 | 1.5 MW | $3.46/W | 1% | 2017 |
| Corbin Solar Solutions | 149 | 1.2 MW | $4.22/W | 30% | 2010 |
| Harvest Sun Solar | 146 | 1.9 MW | $3.53/W | 0% | 2017 |
| Matthew Markham | 144 | 1.2 MW | — | 0% | 2015 |
| Got Sun Go Solar | 142 | 1.3 MW | $4.08/W | 1% | 2010 |
| Romain Strecker | 138 | 4.2 MW | — | 0% | 2012 |
| Kw Management | 129 | 16.9 MW | $4.74/W | 3% | 2006 |
| Design With Nature | 126 | 1.7 MW | $3.40/W | 0% | 2013 |
| Big Sky Renewable Energy | 126 | 1.7 MW | $4.85/W | 0% | 2012 |
| Grenergy Solar Storellc | 125 | 1.1 MW | $3.87/W | 0% | 2008 |
| James Sherman | 122 | 353 kW | — | 0% | 2013 |
| Thomas Young | 120 | 2.0 MW | — | 0% | 2016 |
| Green Seal Environmental | 119 | 8.6 MW | $3.00/W | 3% | 2015 |
| Dynamic Energy Solutions | 112 | 83.5 MW | $2.32/W | 12% | 2001 |
| New England Solar Green Solutions | 112 | 1.1 MW | $3.75/W | 0% | 2009 |
| Bruce Junior | 109 | 750 kW | — | 0% | 2016 |
| Joseph Wyld-Chirico | 109 | 232 kW | — | 0% | 2011 |
| Sunergy Systems | 107 | 1.2 MW | $3.55/W | 0% | 2011 |
| Viridis Energy Solutions | 107 | 1.4 MW | $4.16/W | 17% | 2019 |
| Southcoast Greenlight | 107 | 2.5 MW | $3.43/W | 0% | 2008 |
| Ack Smart | 105 | 1.3 MW | $4.44/W | 1% | 2014 |
| Smart Green Solar | 101 | 918 kW | $5.77/W | 0% | 2022 |
| Future Energy Solarllc | 99 | 1.1 MW | $2.95/W | 0% | 2016 |
| Smartroof Capital | 90 | 832 kW | $3.35/W | 1% | 2020 |
| Massamerican Energy | 82 | 14.3 MW | $2.73/W | 33% | 2014 |
| Resolution Solar | 82 | 604 kW | $4.29/W | 95% | 2014 |
| Firstmark Advantage | 81 | 664 kW | $4.90/W | 6% | 2015 |
| W H Bennett | 80 | 3.5 MW | $4.47/W | 1% | 2012 |
| Gehrlicher Solar America | 80 | 123.2 MW | $2.64/W | 48% | 2012 |
| Brightway Energy | 79 | 758 kW | $3.74/W | 0% | 2020 |
"Based in" = the state with the most recorded installs for that installer. Top 100 shown, ordered by volume.
Frequently asked questions
How many solar installers are there in Massachusetts?
PanelCensus profiles 450 installers based in Massachusetts (5+ recorded installs each), resolved from 159,720 recorded installations in the state. Multi-state national installers also operate here — see the "most active" list.
Who is the biggest solar installer in Massachusetts?
Sunrun has the most recorded installations in Massachusetts with 37,343 systems.
See installation-level geography on the Massachusetts solar page.