Mass Energy Green Power


Pay a few cents more per kilowatt hour to support local renewable energy

How does it work?

  • Generators of Renewable Energy have two sources of revenue: 1) selling the electricity they generate, and 2) selling “Renewable Energy Certificates” or RECs. (They can sell one renewable energy certificate for each 1,000 kilowatt hours of electricity generated.) Renewable Energy Certificates are an important financial incentive for renewable energy projects in New England.
  •  Mass Energy is a non-profit that will match your monthly electricity use (in kilowatt hours) with local green power. What does this mean? Mass Energy uses your money to buy Renewable Energy Certificates (RECs) from carefully chosen local projects. By entering into long term contracts to buy RECs, they help new projects to be developed that might not have been built without the guaranteed purchase of their RECs.
  •  Organizations promoting Mass Energy’s Green Power programs include Mass Audubon & Mothers Out Front
Mass Energy Small Hydro Power Plant
Mass Energy Small Hydro Power Plant

More Details

  •  New England GreenStart matches your electrical use with 25% New England wind, solar, new low-impact hydro and anaerobic digester gas, and costs 2.2 cents* for each kilowatt hour you use, in addition to regular electricity charges. New England Wind matches your electrical use with 100% New England wind power, and costs 3.8 cents* for each kilowatt hour you use, in addition to regular electricity charges. Both are available for Eversource (formerly NStar) and National Grid customers. You can calculate on the Mass Energy website how much extra this might cost.
    Mass Energy Hull Turbine
    Mass Energy Hull Turbine

     Hull Turbine

  • Your electric bill will be the same as always. Eversource will let Mass Energy know how many kilowatt hours you use. Depending on which program you choose, Mass Energy will multiply that number by 2.2 or 3.8 cents. The charge is taken from your credit card each month, separate from your electric bill. You may opt out at any time. Sign up.
  •  If you would rather decide on a fixed amount to pay each month, you can sign up to be a “New England Wind Friend.” The money is also used to buy RECs. (This is available to anyone, including residents of towns that have municipal electricity.)
  • To sign up or for more information: or call 1-800-287-3950.

* cost as of 10/30/2017 – confirm current rate on Mass Energy’s website



Mass Energy’s State of Green Municipal Aggregation Report: March 2018


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