Electricity Generation Aggregated by New Hampshire County
| State Rank | County | Net Generation (Past Year) | Power Plants |
|---|---|---|---|
| #1 | Rockingham County, NH | 16.2 TWh | 6 |
| #2 | Coos County, NH | 938.8 GWh | 12 |
| #3 | Grafton County, NH | 831.6 GWh | 12 |
| #4 | Merrimack County, NH | 205.6 GWh | 14 |
| #5 | Hillsborough County, NH | 188.1 GWh | 11 |
| #6 | Sullivan County, NH | 139.9 GWh | 7 |
| #7 | Strafford County, NH | 97.0 GWh | 8 |
| #8 | Carroll County, NH | 78.4 GWh | 3 |
| #9 | Belknap County, NH | 9.3 GWh | 2 |
Net Generation data is based on the last 12 months since Oct 2025
Top 20 New Hampshire Counties by Net Generation
Totals are based on the most recent 12 months net generation- Rockingham County, NH16.18 TWh
- Coos County, NH938.80 GWh
- Grafton County, NH831.62 GWh
- Merrimack County, NH205.61 GWh
- Hillsborough County, NH188.13 GWh
- Sullivan County, NH139.92 GWh
- Strafford County, NH97.00 GWh
- Carroll County, NH78.37 GWh
- Belknap County, NH9.25 GWh