Renewable energy content detail

  • Northborough Economy provides the minimum amount of your electricity from renewable sources required by law.
  • Northborough Green provides an additional 20% of your electricity from renewable sources in the New England region.
  • Northborough Green Plus provides 100% of your electricity from renewable sources in the New England region.

When purchasing additional renewable energy, Northborough Power Choice prioritizes supporting new renewable energy projects in the New England region to help drive the growth of clean electricity on our local grid.

Buying renewable energy refers to the purchase of Renewable Energy Certificates (RECs). What are RECs?

Northborough Economy Northborough Green Northborough Green Plus National Grid’s Basic Service
Electricity from renewable sources (% of total)
From new renewable sources in the New England region (MA Class I RECs)
Required by state law (MA Class I RECs) 27% 27% 27% 27%
Added by Northborough (no biomass) – 20% 73% –
Total MA Class I RECs 27% 47% 100% 27%
From other clean or renewable sources (other RECs)*
Required by state law 36% 36% 36% 36%

* State law requires all electricity suppliers to purchase Renewable Energy Certificates (RECs) from other sources, including sources that are not new, are renewable but not clean, such as waste to energy, or are clean but not renewable, such as nuclear. This purchase must be made even if the total amount of RECs purchased from either clean or renewable sources exceeds 100% of the electricity used by Northborough Power Choice participants.