Renewable energy content detail
The Green Worcester ElectriCITY Aggregation Program prioritizes supporting renewable energy.
Buying renewable energy refers to the purchase of Renewable Energy Certificates (RECs). What are RECs?
Electricity from renewable sources (% of total)*
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|---|---|---|---|---|---|---|---|---|
| Through August 2026 | Beginning September 2026 | Through August 2026 | Beginning September 2026 | Through August 2026 | Beginning September 2026 | Through August 2026 | Beginning September 2026 | |
| From wind projects outside of New England (National Wind RECs), added by Worcester | – | 37% | – | 70% | – | 19% | – | – |
| From new renewable sources in the New England region (MA Class I RECs), added by Worcester | 37% | – | 70% | – | 19% | – | – | – |
| From new renewable sources in the New England region (MA Class I RECs), required by state law | 30% | 30% | 30% | 30% | 30% | 30% | 30% | 30% |
| Total | 67% | 67% | 100% | 100% | 49% | 49% | 30% | 30% |
* 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 Green Worcester ElectriCITY Municipal Aggregation Program participants.
