RES Solar specializes in turnkey
solar hot water systems for residential
and commercial projects.

• Solar Hot Water
• Solar Pool Heating
• Solar Radiant Floors
• Solar Electric

Live online monitoring helps keep
your system running efficiently.

Rebate and Incentives make solar hot
water even more affordable.

No up front cost with MassSave loan.
Learn more for details.


We’re proud to be chosen as the installer for MassCEC and the town of Nantucket’s HeatSmart program. Learn more.

Latest Project Update

Wheaton College: RES Solar designed and installed a solar hot water and solar pool heating energy solution for Wheaton College’s Haas Athletic Center.
With Wheaton’s ‘Commitment to Sustainability’, we save them money and reduce their dependence on fossil fuels. Details can be found at


Residential Energy Use in Massachusetts

Quick Facts: (Information provided by the US Energy Information Administration – 2009.
  • Solar Hot Water and Solar Electric (Photovoltaic) account for over 40% of all energy consumption in Massachusetts.
  • Massachusetts households use 109 million btu of energy per home. 22% more than average US home.
  • Average home spends more than 2x more on heating than electricity
  • Compared to the U.S. average, a greater proportion of Massachusetts residents use fuel oil (31%) and a much smaller proportion of residents use electricity (10%).


Renewable Energy Systems, LLC
15 Marion Way
Cohasset MA 02025


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