Pricing and Renewable Energy Details

Electricity Product Year Required MA Class I Required Other Renewables Voluntary MA Class I Renewables added by Cohasset Community Electricity Total Renewables
Cohasset Basic 2024 24% 38% 62%
2025 27% 36% 63%
2026 30% 39% 69%
2027 33% 42% 75%
Cohasset Standard (community default) 2024 24% 38% 10% 72%
2025 27% 36% 10% 73%
2026 30% 39% 10% 79%
2027 33% 42% 10% 85%
Cohasset Plus 2024 24% 38% 38% 100%
2025 27% 36% 37% 100%
2026 30% 39% 31% 100%
2027 33% 42% 25% 100%
National Grid Basic Service (if you opt out) 2024 24% 38% 62%
2025 27% 36% 63%
2026 30% 39% 69%
2027 33% 42% 75%

MA Class I renewables come from new, regional sources (i.e., generation located within, or delivered to, New England, built after 1997). For details on all required renewable resources, see www.mass.gov/service-details/program-summaries.

The program will appear on your bill as “Cohasset Community Electricity – Direct”.

Prices for all program options in the Cohasset Community Electricity program include a 0.1 ¢/kWh administration fee. Program prices could increase as a result of a change in law that results in a direct, material increase in costs during the term of the electricity supply agreement. Program prices apply only to the electricity supply portion of your National Grid electric bill. Delivery charges on your National Grid electric bill are not affected by the Cohasset Community Electricity Program.

Future savings against National Grid’s fixed Basic Service rate cannot be guaranteed because National Grid’s rates change every six months for residential and commercial customers and every three months for industrial customers. For Commercial and Industrial National Grid Basic Service Rates please check out the National Grid supply rates page.

If you participate in Cohasset Community Electricity, you will be automatically enrolled at a new price at the end of the contract term, unless you inform the Town otherwise. The new price may be higher or lower than the existing price and the voluntary renewable energy content may change. The Town will contact you no later than 30 days before each automatic renewal to notify you of your supply options.

The Cohasset Community Electricity program presents a unique opportunity for the Town to influence the development of renewable energy resources by going above and beyond the requirements of Massachusetts – this means voluntarily purchasing additional renewable energy. See the State’s renewable energy requirements.

In Cohasset Community Electricity, all purchases of renewable electricity are certified by purchasing and retiring Renewable Energy Certificates (RECs), the accepted legal instrument used to track renewable energy generation and to substantiate claims of renewable energy use. Read on to learn more about why we need RECs.

On Our Grid

All of the additional renewable energy in the Cohasset Community Electricity Program comes from sources designated as MA Class I. These sources must be physically part of our New England electricity grid. This stands in contrast to some electricity supplies that obtain their renewable energy from national sources (e.g., Texas) that are not physically connected to our New England electricity grid. While those sources provide very cheap electricity, you get what you pay for; including them in the electricity mix does not move our region away from fossil fuels.

MA Class I is the State of Massachusetts’ term for new, local renewable energy. The renewable energy can come from the sources shown in the figure below and it must:

  • Be located within New England, New York or Eastern Canada
  • Have started operation after 1997

A Local Option

Cohassett Community Electricity sources the additional renewable energy, above and beyond State requirements, from Green Energy Consumers Alliance, a local non-profit that helps bring new renewable projects to New England through strategic support of development opportunities with short and long term contracts.   

Resources that are part of the Green Energy Consumers Alliance portfolio as of April 2025.

Massachusetts requires all energy suppliers to include a minimum amount of MA Class I renewable energy, and that amount increases annually. This policy, called the Renewable Portfolio Standard (RPS), provides growing demand for renewable energy and, as a result, has been the primary driver of the growth of renewable energy in our region. 

By purchasing a significant quantity of extra MA Class I renewable energy, Cohasset will increase demand further and incentivize even more renewable energy generation development in New England. 

Recent estimates suggest that fully 10% of renewable energy purchased in the MA Class I REC market will soon be voluntarily purchased by municipal aggregations, going above and beyond state requirements, like Cohasset.


When electricity generated by renewable sources – such as solar and wind – is put onto our regional electricity grid, it becomes mixed in with and indistinguishable from other electricity on the grid. It is not possible to physically separate out renewable electricity from the grid mix for your individual consumption.

As a result, a tracking system, called Renewable Energy Certificates (RECs), has been created to enable the purchase and use of renewable electricity. For every one megawatt-hour (mWh) of renewable electricity generated, one REC is created. In order to use renewable electricity, one must purchase a quantity of RECs equal to the amount of electricity purchased from the grid. Once used, a REC is retired so that no one else can purchase that same REC or claim to use it.