Renewable Energy Content Detail

(default program offering) (100% renewable energy option)  

National Grid’s
Basic Service
(if you opt out)

Renewable energy content* 2024 2025 2026 2024 2025 2026 2024 2025 2026
Required by state law
From new regional resources (MA Class I RECs) 24% 27% 30% 24% 27% 30% 24% 27% 30%
From other clean or renewable sources 38% 36% 39% 38% 36% 39% 38% 36% 39%
Added by Sutton
From new regional resources (MA Class I RECs) 20% 20% 20%
From wind projects outside of New England (National Wind RECs) 18% 17% 11%
Total  62% 63% 69% 100% 100% 100% 62% 63% 69%
Exit terms Leave any time.
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* The Commonwealth of Massachusetts requires that all electricity supply products include a minimum of 62% from renewable or clean energy resources in 2024, 63% in 2025, and 69% in 2026. Power Choice Standard meets this requirement. Power Choice Green exceeds it.

What are MA Class I RECs?

MA Class I RECs are renewable energy certificates (RECs) from renewable energy projects that began commercial operation after 1997, generate electricity using any of the following technologies, and meet all other program eligibility criteria:

  • Solar photovoltaic
  • Solar thermal electric
  • Wind energy
  • Small hydropower
  • Landfill methane and anaerobic digester gas
  • Marine or hydrokinetic energy
  • Geothermal energy
  • Eligible biomass fuel

Purchasing MA Class I RECs helps to create demand for more renewable energy on the New England grid. By purchasing more MA Class I RECs than is required by state law, you can help to drive the development of new renewable energy projects in our region.

What are National Wind RECs?

National Wind RECs are renewable energy certificates (RECs) that come from wind projects outside of New England.

Purchasing National Wind RECs does not help to build demand for renewable energy in New England because these projects are based outside of New England. And because National Wind REC prices are low, purchasing these RECs has a smaller impact on renewable energy development.

However, National Wind RECs are typically less expensive than MA Class I RECs and allow you to support renewable energy more affordably. Purchasing National Wind RECs enables you to direct your dollars to renewable sources and not to fossil-fuel-based electricity generators.

What is required by Massachusetts state law?

Massachusetts state law requires all electricity suppliers include a minimum amount of electricity from renewable and clean sources, and that minimum amount increases every year. The law includes a requirement to purchase electricity from both MA Class I-eligible sources and also additional renewable / clean sources.

What are the additional renewable / clean sources referred to in the table?

The phrase “additional renewable / clean sources” refers to the renewable energy required by state law other than MA Class I RECs. Some of these sources are renewable, but not emission free, such as waste-to-energy, which is electricity generated from burning solid waste, and some of those sources are clean but not classed as renewable, such as nuclear.