Solar installers in Massachusetts
305 profiled installers based in Massachusetts, plus the national companies most active in the state — volume, prices and ownership mix from public data.
Dataset updated . Refreshed from LBNL's Tracking the Sun public releases.
Installers based here
305
Recorded installs
140,908
State capacity
4.0 GW
Median price
$4.17/W
pre-incentive
Any headquarters
Most active in Massachusetts
| # | Installer | Installs in MA |
|---|---|---|
| 1 | Sunrun | 36,668 |
| 2 | Tesla Energy | 23,018 |
| 3 | Trinity Solar | 12,458 |
| 4 | Direct Energy Solar Formerly Astrum | 3,361 |
| 5 | Roof Diagnostics Solar | 3,086 |
| 6 | Boston Solar | 2,932 |
| 7 | Sungevity Development | 2,795 |
| 8 | Next Step Living | 2,360 |
| 9 | Sunbug Solar | 2,356 |
| 10 | Rgs Energy | 2,042 |
| 11 | Revolusun | 1,671 |
| 12 | Freedom Forever | 1,633 |
| 13 | Pv Squared | 1,616 |
| 14 | Solarflair Energy | 1,615 |
| 15 | My Generation Energy | 1,305 |
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 |
| Roof Diagnostics Solar | 4,115 | 27.3 MW | $3.55/W | 76% | 2012 |
| Boston Solar | 2,962 | 32.3 MW | $3.77/W | 3% | 2012 |
| Palmetto Solar | 2,583 | 21.7 MW | $4.10/W | 37% | 2017 |
| Next Step Living | 2,475 | 14.1 MW | $6.50/W | 1% | 2012 |
| Sunbug Solar | 2,364 | 30.8 MW | $3.99/W | 2% | 2009 |
| All Energy Solar | 1,906 | 17.9 MW | $4.09/W | 0% | 2012 |
| Revolusun | 1,724 | 16.5 MW | $4.30/W | 4% | 2012 |
| Solarflair Energy | 1,638 | 26.5 MW | $3.59/W | 1% | 2008 |
| Pv Squared | 1,628 | 18.7 MW | $4.59/W | 1% | 2003 |
| My Generation Energy | 1,307 | 17.4 MW | $3.69/W | 1% | 2009 |
| New England Clean Energy | 1,289 | 12.0 MW | $4.64/W | 0% | 2007 |
| Northeast Solar Design Associates | 1,243 | 15.3 MW | $3.99/W | 2% | 2004 |
| Endless Mtn Solar Services | 1,004 | 8.5 MW | $5.38/W | 1% | 2009 |
| Isaksen Solar | 946 | 11.0 MW | $3.89/W | 5% | 2017 |
| E2 Solar | 905 | 7.3 MW | $4.85/W | 0% | 2007 |
| Second Generation Energy | 827 | 12.9 MW | $3.56/W | 5% | 2008 |
| Great Sky Solar | 825 | 8.1 MW | $3.10/W | 0% | 2011 |
| Solar Rising | 772 | 7.3 MW | $3.35/W | 2% | 2013 |
| Summit Energy Group | 750 | 10.7 MW | $4.58/W | 23% | 2004 |
| Devlin Contracting Maintenance | 739 | 6.7 MW | $4.37/W | 48% | 2018 |
| Mass Renewables | 631 | 6.1 MW | $3.84/W | 1% | 2009 |
| Solect Energy | 630 | 112.2 MW | $2.87/W | 27% | 2011 |
| Ameresco | 628 | 208.1 MW | $3.44/W | 20% | 2005 |
| Ace Residential Solar | 609 | 9.1 MW | $3.25/W | 1% | 2015 |
| Blue Selenium Solar | 607 | 5.2 MW | $5.19/W | 1% | 2010 |
| Cazeault Solar | 543 | 4.2 MW | $3.98/W | 0% | 2013 |
| Green Earth Energy Photovoltaic | 532 | 20.7 MW | $3.80/W | 5% | 2010 |
| Brightstar Solar | 524 | 5.2 MW | $3.36/W | 0% | 2010 |
| South Mountain Company | 499 | 5.4 MW | $4.98/W | 0% | 2007 |
| Nuwatt Energy | 491 | 4.6 MW | $3.22/W | 3% | 2011 |
| Invaleon Technologies Corporation | 487 | 14.5 MW | $3.20/W | 4% | 2012 |
| Solar Wolf Energy | 482 | 4.0 MW | $4.19/W | 0% | 2016 |
| Solar Five | 431 | 3.5 MW | $4.40/W | 31% | 2015 |
| Nexamp | 342 | 774.9 MW | $3.27/W | 36% | 2008 |
| Solar Store Of Greenfield | 339 | 2.4 MW | $4.16/W | 1% | 2006 |
| Blueset Home Solar | 324 | 2.9 MW | $4.11/W | 1% | 2018 |
| 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 | 261 | 3.8 MW | $4.26/W | 0% | 2005 |
| Insight Solar | 248 | 2.5 MW | $4.12/W | 19% | 2019 |
| Fullers Energy | 246 | 2.6 MW | $5.65/W | 0% | 2011 |
| Certified Safe Electric | 243 | 2.1 MW | $3.57/W | 7% | 2009 |
| Sunwind Solutions | 230 | 2.2 MW | $3.46/W | 0% | 2010 |
| Vantage Solar | 227 | 2.7 MW | $3.04/W | 32% | 2014 |
| Ace Solar | 211 | 9.6 MW | $3.22/W | 9% | 2015 |
| Rayah Solar | 207 | 3.5 MW | $3.98/W | 16% | 2015 |
| Southern Light Solar | 199 | 3.3 MW | $3.50/W | 2% | 2013 |
| Bay State Solar | 195 | 2.8 MW | $4.25/W | 42% | 2013 |
| Transformations | 190 | 1.5 MW | $5.57/W | 4% | 2005 |
| Acushnet Alternative Heating | 186 | 2.0 MW | $3.00/W | 0% | 2013 |
| Beaumont Solar | 183 | 33.7 MW | $3.67/W | 5% | 2008 |
| Ino Electrical Service | 182 | 4.2 MW | $3.38/W | 1% | 2010 |
| Sunlight Solar Ca | 182 | 1.0 MW | $4.50/W | 3% | 2004 |
| Alternate Energy | 178 | 1.4 MW | $4.55/W | 3% | 2004 |
| Plymouth Solar Energy | 178 | 2.1 MW | $4.15/W | 1% | 2011 |
| Rexel Energy Solutions | 176 | 7.6 MW | $4.29/W | 1% | 2011 |
| Crius Solar | 164 | 1.2 MW | $4.20/W | 13% | 2017 |
| Independent Power Systems | 157 | 3.5 MW | $5.05/W | 0% | 2011 |
| Corbin Solar Solutions | 152 | 1.4 MW | $4.22/W | 29% | 2010 |
| Endless Energy | 149 | 1.4 MW | $3.46/W | 1% | 2017 |
| Got Sun Go Solar | 145 | 1.3 MW | $4.08/W | 1% | 2010 |
| Harvest Sun Solar | 144 | 1.8 MW | $3.53/W | 0% | 2017 |
| Beacon Solar | 143 | 2.1 MW | $4.20/W | 2% | 2017 |
| Reliable Solar Solutions | 139 | 1.3 MW | $3.53/W | 0% | 2015 |
| Empower Energy Solutions | 131 | 1.1 MW | $5.96/W | 0% | 2021 |
| Big Sky Renewable Energy | 126 | 1.7 MW | $4.85/W | 0% | 2012 |
| Design With Nature | 126 | 1.7 MW | $3.40/W | 0% | 2013 |
| Grenergy Solar Storellc | 125 | 1.1 MW | $3.87/W | 0% | 2008 |
| Green Seal Environmental | 119 | 8.5 MW | $3.00/W | 3% | 2015 |
| Dynamic Energy Solutions | 112 | 83.4 MW | $2.32/W | 12% | 2001 |
| New England Solar Green Solutions | 110 | 1.0 MW | $3.75/W | 0% | 2009 |
| Southcoast Greenlight | 110 | 2.5 MW | $3.43/W | 0% | 2008 |
| Ack Smart | 105 | 1.1 MW | $4.44/W | 1% | 2014 |
| Future Energy Solarllc | 99 | 1.1 MW | $2.95/W | 0% | 2016 |
| Smart Green Solar | 99 | 871 kW | $5.77/W | 0% | 2022 |
| Resolution Solar | 82 | 604 kW | $4.29/W | 95% | 2014 |
| Viridis Energy Solutions | 82 | 798 kW | $4.18/W | 22% | 2019 |
| Firstmark Advantage | 81 | 664 kW | $4.90/W | 6% | 2015 |
| Gehrlicher Solar America Corporation | 81 | 123.6 MW | $2.83/W | 47% | 2012 |
| Massamerican Energy | 80 | 13.6 MW | $2.77/W | 34% | 2014 |
| W H Bennett | 80 | 3.5 MW | $4.47/W | 1% | 2012 |
| Brightway Energy | 77 | 733 kW | $3.74/W | 0% | 2020 |
| Zapotec Energy | 77 | 1.5 MW | $7.82/W | 0% | 2003 |
| Ostrow Electric | 73 | 4.8 MW | $5.32/W | 1% | 2009 |
| Atlantic Alternative Power | 72 | 541 kW | $4.07/W | 1% | 2006 |
| Cs Energy | 72 | 153.1 MW | $1.97/W | 31% | 2015 |
| Team Sunshine Construction | 72 | 684 kW | $5.18/W | 15% | 2022 |
| Solar Design Associates | 67 | 4.4 MW | $5.57/W | 9% | 2003 |
| 621 Energy | 66 | 3.6 MW | $3.36/W | 14% | 2012 |
| True Enterprises | 66 | 1.8 MW | $3.34/W | 41% | 2015 |
| Go Green Industries | 64 | 1.1 MW | $3.08/W | 2% | 2009 |
| Hallmark Electrical Systems | 63 | 3.8 MW | $3.45/W | 0% | 2011 |
| Lighthouse Electrical Contracting Incaldon Electric | 62 | 3.7 MW | $7.66/W | 8% | 2003 |
| Us Solar Works | 61 | 2.8 MW | $4.85/W | 2% | 2009 |
| Munro Distributing Company | 59 | 2.0 MW | $5.38/W | 2% | 2008 |
| Pro Energy Solutions | 59 | 99.2 MW | $2.31/W | 46% | 2011 |
| American Capital Energy | 55 | 31.1 MW | $4.33/W | 7% | 2008 |
| First Sun Solar | 54 | 424 kW | $4.26/W | 0% | 2010 |
"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 305 installers based in Massachusetts (5+ recorded installs each), resolved from 140,908 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 36,668 systems.
See installation-level geography on the Massachusetts solar page.