Renewable energy content detail
The Green Worcester ElectriCITY Aggregation Program prioritizes supporting new renewable energy projects in the New England region to help drive the growth of clean electricity on our local grid.
- Worcester Basic Green provides 47% of your electricity supply from new renewable sources in the New England region (MA Class I RECs).
- Worcester Standard Green provides 67% of your electricity supply from new renewable sources in the New England region (MA Class I RECs).
- Worcester 100% Green provides 100% of your electricity supply from new renewable sources in the New England region (MA Class I RECs).
Buying renewable energy refers to the purchase of Renewable Energy Certificates (RECs). What are RECs?
December 2025 meter reads – December 2027 meter reads
 |
 |
 |
 |
||
| Electricity from renewable sources (% of total) | |||||
| From new renewable sources in the New England region (MA Class I RECs) | |||||
| Required by state law | 27% | 27% | 27% | 27% | |
| Added by Worcester (no biomass) | 40% | 73% | 20% | – | |
| Total | 67% | 100% | 47% | 27% | |
| From other clean or renewable sources (other RECs)* | |||||
| Required by state law | 36% | 36% | 36% | 36% | |
Until December 2025 meter reads
|
|
|
|||
| Electricity from renewable sources (% of total) | |||||
| From new renewable sources in the New England region (MA Class I RECs) | |||||
| Required by state law | 27% | 27% | 27% | ||
| Added by Worcester (no biomass) | 40% | 73% | – | ||
| Total | 67% | 100% | 27% | ||
| From other clean or renewable sources (other RECs)* | |||||
| Required by state law | 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 Green Worcester ElectriCITY Municipal Aggregation Program participants.
