Electricity Generation Aggregated by Massachusetts County
| State Rank | County | Net Generation (Past Year) | Power Plants |
|---|---|---|---|
| #13 | Dukes County, MA | 7.9 GWh | 7 |
| #12 | Berkshire County, MA | 82.2 GWh | 37 |
| #11 | Hampshire County, MA | 139.7 GWh | 35 |
| #10 | Barnstable County, MA | 374.8 GWh | 21 |
| #9 | Franklin County, MA | 414.9 GWh | 31 |
| #8 | Suffolk County, MA | 453.4 GWh | 13 |
| #7 | Bristol County, MA | 674.2 GWh | 68 |
| #6 | Plymouth County, MA | 842.4 GWh | 73 |
| #5 | Hampden County, MA | 1.4 TWh | 84 |
| #4 | Essex County, MA | 2.2 TWh | 37 |
| #3 | Middlesex County, MA | 3.7 TWh | 65 |
| #2 | Worcester County, MA | 3.9 TWh | 188 |
| #1 | Norfolk County, MA | 6.6 TWh | 36 |
Net Generation data is based on the last 12 months since Feb 2025
Top 20 Massachusetts Counties by Net Generation
Totals are based on the most recent 12 months net generation- Norfolk County, MA6.60 TWh
- Worcester County, MA3.90 TWh
- Middlesex County, MA3.74 TWh
- Essex County, MA2.19 TWh
- Hampden County, MA1.37 TWh
- Plymouth County, MA842.40 GWh
- Bristol County, MA674.16 GWh
- Suffolk County, MA453.44 GWh
- Franklin County, MA414.91 GWh
- Barnstable County, MA374.79 GWh
- Hampshire County, MA139.69 GWh
- Berkshire County, MA82.22 GWh
- Dukes County, MA7.91 GWh