New Hampshire Interconnection Projects
interXdata tracks 268 interconnection projects in New Hampshire representing 17,937 MW of requested capacity. The dominant technology by capacity is Other. The most active counties are Coos, Grafton, Rockingham.
268Total projects
5Active
160Operational
102Withdrawn
17,937 MWRequested capacity
149 MWActive capacity
Technology mix
| Technology | Projects | Requested capacity |
|---|---|---|
| Other | 148 | 9,313 MW |
| Gas | 30 | 4,193 MW |
| Solar | 53 | 1,801 MW |
| Wind | 26 | 1,300 MW |
| Battery | 7 | 977 MW |
| Solar+Battery | 4 | 353 MW |
Counties
| County | Projects | Requested capacity |
|---|---|---|
| Coos | 66 | 1,391 MW |
| Grafton | 49 | 3,686 MW |
| Rockingham | 35 | 9,565 MW |
| Merrimack | 29 | 1,020 MW |
| Hillsborough | 24 | 233 MW |
| Strafford | 18 | 63 MW |
| Cheshire | 15 | 1,216 MW |
| Sullivan | 14 | 203 MW |
| Belknap | 7 | 34 MW |
| Carroll | 4 | 239 MW |
| Merrimack/Grafton | 2 | 154 MW |
| Grafton/Merrimack | 2 | 132 MW |
Largest projects
| Project | Queue ID | Technology | Capacity | Status | Location |
|---|---|---|---|---|---|
| Seabrook Power Uprate7 | 101 | Other | 1,265.0 MW | operational | Rockingham, New Hampshire |
| Seabrook | 6115_1 | Other | 1,242.0 MW | operational | Rockingham, New Hampshire |
| HVDC/AC Tie - Import only | 519 | — | 1,200.0 MW | withdrawn | Rockingham, New Hampshire |
| 400 kV HVDC Tie - Import Only | 627 | — | 1,200.0 MW | withdrawn | Grafton, New Hampshire |
| 1200 MW (+/- 400 kV) HVDC External ETU | 1381 | — | 1,200.0 MW | withdrawn | Grafton, New Hampshire |
| Northern Pass Transmission Project (300 kV HVDC/AC Tie) - Import Only | 499 | — | 1,090.0 MW | withdrawn | Rockingham, New Hampshire |
| Combined Cycle Capacity Increase/ Generator Change | 226 | Gas | 904.0 MW | withdrawn | Rockingham, New Hampshire |
| Essential Power Newington - CNRC Increase | 603 | Gas | 596.1 MW | operational | Rockingham, New Hampshire |
| Energy Center | 579 | Gas | 570.1 MW | withdrawn | Cheshire, New Hampshire |
| Combined Cycle( See # 226) | 165 | Gas | 563.0 MW | withdrawn | Rockingham, New Hampshire |
| Newington | 8002_1 | Other | 414.0 MW | operational | Rockingham, New Hampshire |
| Battery Storage | 1364 | Battery | 401.7 MW | withdrawn | Rockingham, New Hampshire |
| Merrimack | 2364_2 | Other | 345.6 MW | suspended | Merrimack, New Hampshire |
| Granite Ridge | 55170_STG | Gas | 270.0 MW | operational | Rockingham, New Hampshire |
| Granite Ridge | 55170_CT12 | Gas | 260.0 MW | operational | Rockingham, New Hampshire |
| Granite Ridge | 55170_CT11 | Gas | 260.0 MW | operational | Rockingham, New Hampshire |
| Newington Energy Center | 55661_ST | Gas | 234.3 MW | operational | Rockingham, New Hampshire |
| Battery Storage | 1374 | Battery | 226.0 MW | withdrawn | Merrimack, New Hampshire |
| Battery Storage | 1443 | Battery | 200.0 MW | withdrawn | Rockingham, New Hampshire |
| Newington Energy Center | 55661_GT-2 | Gas | 185.6 MW | operational | Rockingham, New Hampshire |
| Newington Energy Center | 55661_GT-1 | Gas | 185.6 MW | operational | Rockingham, New Hampshire |
| Wind | 280 | Wind | 180.0 MW | withdrawn | Coos, New Hampshire |
| Solar | 1246 | Solar | 150.0 MW | withdrawn | Grafton, New Hampshire |
| Wind | 176 | Wind | 145.5 MW | withdrawn | Coos, New Hampshire |
| Merrimack | 2364_1 | Other | 113.6 MW | operational | Merrimack, New Hampshire |
| Solar + Battery Storage | 1135 | Solar+Battery | 113.0 MW | withdrawn | Coos, New Hampshire |
| Solar | 932 | Solar | 110.0 MW | withdrawn | Carroll, New Hampshire |
| Solar plus Battery | 1316 | Solar+Battery | 102.0 MW | withdrawn | Cheshire, New Hampshire |
| Energy Storage | 871 | Battery | 100.0 MW | withdrawn | Grafton, New Hampshire |
| Solar | 1428 | Solar | 100.0 MW | active | Rockingham, New Hampshire |
Top developers in New Hampshire
Developer attribution is not yet resolved for this set.
Recent material changes
No material field-level changes have been recorded against these projects since the baseline snapshot. interXdata records changes as new source snapshots are ingested and diffed.
Explore related data
Source last checked2026-07-31
Data last materially changed2026-08-27
Page data generated2026-08-27
Provenance: U.S. EIA — Form EIA-860M generator inventory (operating + planned); isone-irtt. Values are normalized from public source records into the interXdata canonical warehouse; see each source for original filings.
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