Here are listed many of the developers, installers and other companies exploring and promoting renewable energy sources in the state of Massachusetts.

Massachusetts Clean Energy Center (MassCEC) – https://www.masscec.com/ – The Massachusetts Clean Energy Center (MassCEC) is a state economic development agency dedicated to accelerating the growth of the clean energy sector across the Commonwealth to spur job creation, deliver statewide environmental benefits and to secure long-term economic growth for the people of Massachusetts. MassCEC works to increase the adoption of clean energy while driving down costs and delivering financial, environmental, and economic development benefits to energy users and utility customers across the state.

Kearsarge Energy – https://www.kearsargeenergy.com/ – Kearsarge Energy is a full-service renewable energy project development, finance and holding company, with a mission to build a more sustainable world and to provide superior returns to all project stakeholders, including the communities in which company works. Founded in 2009, Kearsarge has developed and financed more than 60 MW and $180 million of solar PV projects and is rapidly growing its business in select markets across the U.S. Kearsarge Hydro & Wind (“KHW”) acquires existing small and mid-sized (up to 25MW) hydroelectric projects throughout New England and the Mid-Atlantic region. Kearsarge Public-Private Partnerships (“KPPP”) works closely with governmental entities, non-profits, private companies, and private landowners in order to facilitate timely financing, permitting, community acceptance and resolution of all regulatory issues in developing various kinds of renewable energy projects, including hydroelectric facilities, wind farms, biogas and biomass projects. Kearsarge AD (“KAD”) is developing utility-scale 1 to 5 MW anaerobic digesters at multiple sites across New England.

Boston Solar – https://www.bostonsolar.us/ – Boston Solar is the #1 residential solar contractor based in Massachusetts, with more than 4,800 installations in 10 years. Boston Solar team members are proud to power Massachusetts, a state that continues to lead the nation in solar installations. Boston Solar provides superior products, exceptional customer service, and the highest quality workmanship. Boston Solar offers residential and commercial installations across the Commonwealth of Massachusetts including cities and towns on the south shore, north shore, metro west, central mass, greater Boston, south coast, and parts of cape cod (up to Hyannis). Boston Solar is dedicated to helping customers save money while improving the environment and supporting our local community.

Mass Renewables Inc. – https://www.massrenewables.net/ – Be independent, save money, and lower your carbon footprint. Mass Renewables’ goal is to provide the local community and beyond with a sustainable source of residential and commercial energy. The team believes in thinking globally, acting locally, and making the world a better place to live. Mass Renewables Inc. is a full-service Solar PV installation company. It is a family owned company that has been in business since 2009. Mass Renewables offers their customers innovative system designs that best fit their individual needs. Mass Renewables Inc. is rated the #1 solar company in Massachusetts.




ReVision Energy – https://www.revisionenergy.com/ – ReVision Energy is a full service renewable energy contracting company that provides a full range of engineering, design, installation and equipment service for homes, businesses, municipal buildings and nonprofits. ReVision Energy is fortunate to have an outstanding team of committed people creating success. ReVision Energy is the first solar company in the country to launch a dedicated and state-certified electrical training program, including an apprenticeship program.

Nexamp Inc. – https://www.nexamp.com/ – Founded in 2007 by two U.S Army veterans, Nexamp has been pursuing its mission for over a decade – to build the future of energy so that it is clean, simple, and accessible. Today, Nexamp is a leader in the clean energy space, offering solar and energy storage solutions. The team’s vertically integrated model is a strength and differentiator for Nexamp. Company owns and operates all of its solar storage projects and manage every stage of the process: financing, project development and acquisition, design, construction, operations and maintenance, and energy sales.

Quaise Inc. – https://www.quaise.energy/ – Welcome to Quaise. Quaise is unlocking supercritical geothermal energy everywhere and developing the enabling technologies to unlock this energy source on a global scale. Drilling technologies to reach down to 20 km below the surface and place this energy source within the reach of all humanity. Reservoir technologies to safely and predictably release this energy with the power densities of fossil fuels. Scalable to 30 terawatts by 2050 to eradicate energy poverty throughout the world. Without emissions to stabilize our atmosphere and the worsening effects of global warming. More robust to fires, floods, droughts, and hurricanes. More efficient in land use to preserve the unbuilt natural space. Less reliant on transmission infrastructure and geopolitically sensitive fuels. Accessible to all to ensure energy security for every nation on the planet.

Here are listed most of the developers, installers and other renewable energy companies with national coverage, as well as such covering more than 5 States, incl. franchise:

SunPower – https://us.sunpower.com/ – Changing the way the world Is powered. SunPower designs all-in-one residential and commercial solutions backed by personal customer service and the industry’s most comprehensive warranty. And with over 35 years of dedicated solar experience, SunPower is the only U.S.-based solar company that’s been around longer than its 25-year warranty. SunPower has been developing record-breaking solar technology since the 1970s. Company’s history over these decades has been marked by creativity, craftsmanship – and confidence.

EnergySage, Inc. – https://www.energysage.com/ – Every day, millions of Americans shop for renewable energy solutions, such as solar power — and thousands of companies look for well-qualified customers. But the process can be confusing, expensive, and intimidating. EnergySage is the go-to marketplace for making confident energy decisions and gaining control over the buying process. EnergySage’s one-of-a-kind marketplace was developed with funding from the U.S. Department of Energy’s Sun-Shot program, to make solar and other renewable energy options affordable and accessible to all Americans.

NextEra Energy, Inc. – https://www.nexteraenergy.com/ – NextEra Energy is an American energy company with about 58 GW of generating capacity, revenues of over $18 billion in 2020, and about 14,900 employees throughout the US and Canada. It is the largest electric utility holding company by market capitalization. Its subsidiaries include Florida Power & Light (FPL), NextEra Energy Resources, NextEra Energy Partners, Gulf Power Company, and NextEra Energy Services.

Ameresco, Inc. – https://www.ameresco.com – Ameresco, (NYSE:AMRC) is a leading cleantech integrator and renewable energy asset developer, owner and operator.

Jacobs Wind Electric Co. Inc. – https://www.jacobswind.net/ – Jacobs Wind Electric is the oldest renewable energy company in the United States. It has been designing consumer and commercial renewable energy systems sized to the changing distributed electric loads of their periods since the mid-1920s.

Sunpro Solar – https://www.gosunpro.com – Founded in 2008, Sunpro Solar is one of the leading providers of rooftop solar in the United States. Sunpro Solar designs, installs, and maintains solar panels on residential and commercial properties.

Sunrun – https://www.sunrun.com/ – Experience Peace of Mind for Decades to Come with Sunrun Rooftop Solar Panels. When you team up with a solar company like Sunrun, you can create your own affordable, clean energy and gain independence from your utility company. A Sunrun solar installation can help power your home when the sun is out while you boost control over your energy usage and reduce your dependence on fossil fuels.

Eagle Creek Renewable Energy (subsidiary of Ontario Power Generation Inc.) – https://www.eaglecreekre.com/ – Eagle Creek Renewable Energy is an owner, operator, and developer of hydroelectric power projects. Eagle Creek Renewable Energy was founded in 2010 to acquire, enhance, and operate small hydroelectric power facilities. Eagle Creek currently owns and operates more than 80 hydroelectric facilities representing over 630 megawatts of capacity across the United States. Eagle Creek also has ownership interests equivalent to approximately 12 megawatts in 14 other hydroelectric facilities and two solar facilities in New England. The facilities produce enough electricity to power over 250,000 homes, while avoiding over 1.8 million metric tons of carbon dioxide emissions each year, providing recreational opportunities, and protecting historical resources and the environment.

EDP Renewables North America – https://www.edpr.com – Based in Houston, Texas, EDP Renewables North America is a division of EDP Renewables, a global leader in the renewable energy sector. EDP Renewables’ story in the U.S. began in 2007 when the company embraced the growing demand for clean energy and acquired Horizon Wind Energy LLC. Since then, EDP Renewables has more than doubled our wind power production, becoming one of the world’s largest producers.

Clearway Energy Group LLC. – https://www.clearwayenergygroup.com/ – Clearway’s extensive experience with all aspects of project development, project finance, operations, and customer service has made the company a leader in the renewable energy industry. Clearway’s portfolio ranges from clusters of community solar projects to some of the largest wind and solar projects in the United States.

Global developers of Renewable energy projects – Here are listed some of the developers, installers and other companies exploring and promoting renewable energy sources on a global level.

Iberdrola SA – https://www.iberdrola.com – Iberdrola is a Spain-based multinational electric utility company. The company engages in the generation, distribution, and trading of electricity. It specializes in clean energy, including wind, mini-hydro, solar thermal, photovoltaic, and biomass. Iberdrola operates in the U.S., U.K., Spain, Portugal, and Latin America. With over 170 years of history behind the company, Iberdrola is now a global energy leader, the number one producer of wind power, and one of the world’s biggest electricity utilities in terms of market capitalisation.

Ørsted A/S – https://orsted.com/ – Denmark-based multinational power company focused on providing renewable energy solutions. The company’s wind power segment develops, constructs, and operates offshore wind farms. Its bioenergy and thermal power segment operate combined heat and power plants.Ørsted has been the world’s most sustainable energy company in Corporate Knights’ Global 100 index of most sustainable companies in 2019, 2020, and 2021. In 2020, Ørsted was ranked the world’s most sustainable company, and in 2021 it is ranked in second place overall.

Tesla Energy  – https://www.tesla.com/energy – Tesla Energy is the clean energy subsidiary of Tesla, Inc., headquartered in Fremont, California, that develops, manufactures, sells and installs photovoltaic solar energy generation systems, battery energy storage products, as well as other related products and services to residential, commercial and industrial customers. The subsidiary was founded on April 30, 2015 when Tesla CEO Elon Musk announced that the company would apply the battery technology it developed for electric cars to a home energy storage system called the Powerwall.

Renewable Energy Systems Ltd. (RES) – https://www.res-group.com/ – RES is the world’s largest independent renewable energy company. At the forefront of the industry for nearly 40 years, RES has delivered more than 21GW of renewable energy projects across the globe and supports an operational asset portfolio exceeding 7.5GW worldwide for a large client base. RES employs more than 2,000 people and is active in 10 countries working across onshore and offshore wind, solar, energy storage and transmission and distribution.




Libra Group  – https://www.libra.com – The Libra Group, aka Libra Holdings, is a privately held international conglomerate operating in a variety of industries. It has many subsidiaries across six continents, incl. the sector of renewable energy.

EDF Renewables – https://www.edf-re.com/ – EDF Renewables is the global renewable energy affiliate of the Group. Present in 20+ countries, under the brand EDF Renewables, the company develops, builds and operates renewable power plants.

UGE International Ltd. – https://www.ugei.com/ – UGE is a collection of businesses, all dedicated to providing the world with renewable energy. UGE has a rich history, and continues to evolve with the rapidly changing renewable energy industry.

EDPR Holding – https://www.edpr.com – With a sound development pipeline, first class assets, and market-leading operating capacity, EDPR has undergone exceptional development in recent years and is currently present in 17 markets (Belgium, Brazil, Canada, Colombia, Chile, France, Greece, Hungary, Italy, Mexico, Poland, Portugal, Romania, Spain, the UK, US and Vietnam).

Enel Green Power S.p.A. – https://www.enelgreenpower.com/ – Enel Green Power has plants powered by renewable resources all around the world. The company is working to set new standards in the field of sustainable energy, constantly pushing technological limits and fostering stakeholder awareness. Enel Green Power was founded in December 2008 inside the Enel Group to develop and manage power generated from renewable resources worldwide. Enel Green Power manages more than 1,200 power plants on five continents and is present with assets in operation or under construction in 21* countries and development activities in a further 6 countries. It has over 50 GW of installed renewable capacity generated from a mix of resources, including wind, solar, hydroelectric and geothermal. Enel Green Power is playing a fundamental role in the energy transition, as it is one of the world’s leading renewable energy companies. Its goal is to accompany the planet into a new era in which everyone has access to sustainable, decarbonized energy. Enel Green Power is also a founding member of RES4MED, Renewable Energy Solutions for the Mediterranean and Beyond, an association created in 2012 to promote renewable energy and the infrastructures needed to deliver the generated electricity throughout the Mediterranean area.