Greenfield Datacenter Sites in New Hampshire
At a glance
Undeveloped land with no prior industrial use. Greenfield parcels offer maximum design flexibility and large contiguous footprints, but typically require full utility build-out — the speed-to-power story hinges on proximity to existing transmission.
Top greenfield sites in New Hampshire
| Site | Type | County | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|---|
| EC Near Nashua Plant | Greenfield | Hillsborough | — | — | 4.3 yrs | 61.1 |
| OZ Hillsborough | Greenfield | Hillsborough | — | — | 4.3 yrs | 60.8 |
| EC Near Nashua Plant | Greenfield | Hillsborough | — | — | 4.3 yrs | 60.0 |
| OZ Hillsborough | Greenfield | Hillsborough | — | — | 4.3 yrs | 59.9 |
| Greenfield (MERRIMACK - TAP137063) | Greenfield | Merrimack County | 230 kV | 300 MW | 4.3 yrs | 59.6 |
| OZ Strafford | Greenfield | Strafford | — | — | 4.3 yrs | 59.4 |
| OZ Rockingham | Greenfield | Rockingham | — | — | 4.3 yrs | 58.9 |
| EC Near Nashua Plant | Greenfield | Hillsborough | — | — | 4.3 yrs | 58.8 |
| EC Near Nashua Plant | Greenfield | Hillsborough | — | — | 4.3 yrs | 57.9 |
| EC Near Nashua Plant | Greenfield | Hillsborough | — | — | 4.3 yrs | 57.6 |
| Greenfield (FITZWILLIAM - AMHERST) | Greenfield | Cheshire County | 345 kV | 600 MW | 4.3 yrs | 57.5 |
| OZ Strafford | Greenfield | Strafford | — | — | 4.3 yrs | 57.3 |
| EC Near Nashua Plant | Greenfield | Hillsborough | — | — | 4.3 yrs | 57.2 |
| EC Near Nashua Plant | Greenfield | Hillsborough | — | — | 4.3 yrs | 57.2 |
| EC Near Nashua Plant | Greenfield | Hillsborough | — | — | 4.3 yrs | 56.2 |
| OZ Rockingham | Greenfield | Rockingham | — | — | 4.3 yrs | 55.8 |
| OZ Merrimack | Greenfield | Merrimack | — | — | 4.3 yrs | 54.4 |
| Greenfield (OCEAN ROAD - BRENTWOOD) | Greenfield | Rockingham County | 115 kV | 100 MW | 4.3 yrs | 54.3 |
| OZ Rockingham | Greenfield | Rockingham | — | — | 4.3 yrs | 53.7 |
| Greenfield (UNKNOWN132726 - TAP170878) | Greenfield | Rockingham County | 115 kV | 100 MW | 4.3 yrs | 53.6 |
| OZ Coos | Greenfield | Coos | — | — | 4.3 yrs | 53.6 |
| OZ Coos | Greenfield | Coos | — | — | 4.3 yrs | 53.3 |
| OZ Coos | Greenfield | Coos | — | — | 4.3 yrs | 53.1 |
| OZ Sullivan | Greenfield | Sullivan | — | — | 4.3 yrs | 52.3 |
| OZ Coos | Greenfield | Coos | — | — | 4.3 yrs | 52.2 |
How does New Hampshire compare with other states for greenfield sites?
With 32 sites, New Hampshire ranks 49th of the 51 states that have any greenfield candidate sites. Texas leads with 1,276. Nationally, greenfield sites average 55.3/100 DC Readiness, above the 53.0 average across all site types. Across every site type, New Hampshire averages 54.5, the 20th-highest of 52 states, and its candidate sites face an average interconnection-queue wait of 4.3 years.
Where are the highest-scoring greenfield sites in New Hampshire?
The top 25 range from 61.1 to 52.2 on the 0–100 DC Readiness Score. They are concentrated in Hillsborough (10), Rockingham (5), Coos (4) and Merrimack County (2). By grid region, 25 are in ISO-NE.
County pages: Hillsborough · Rockingham · Coos · Merrimack County
What power, fiber and flood exposure do these greenfield sites have?
Of the top 25 greenfield sites in New Hampshire, 4 have a recorded nearest-substation voltage, with a median of 173 kV; for 2 that substation is rated 230 kV or higher. Their counties have a median of 8 fixed fiber broadband providers in FCC data. The median distance to the nearest internet exchange facility is 26 km. The median interconnection-queue wait in their markets is 4.3 years. 1 of the 21 with a mapped FEMA flood zone sits in a high-risk (A or V) zone.
Frequently asked questions
How many greenfield datacenter sites are in New Hampshire?
GridCensus catalogs 32 greenfield datacenter candidate sites in New Hampshire, 0.2% of the national total for this type (49th of 51 states).
What is a greenfield datacenter site?
Undeveloped land with no prior industrial use. Greenfield parcels offer maximum design flexibility and large contiguous footprints, but typically require full utility build-out — the speed-to-power story hinges on proximity to existing transmission.
What is the best greenfield datacenter site in New Hampshire?
By DC Readiness Score, EC Near Nashua Plant in Hillsborough ranks first at 61.1/100, followed by OZ Hillsborough in Hillsborough at 60.8.
Which New Hampshire counties have the best greenfield sites?
The top 25 greenfield sites in New Hampshire are concentrated in Hillsborough (10), Rockingham (5), Coos (4) and Merrimack County (2).
How does New Hampshire score for datacenters overall?
All 539 scored sites in New Hampshire average 54.5/100 DC Readiness, the 20th-highest of 52 states, against a national average of 53.0.
More on greenfield sites and New Hampshire
Greenfield sites in other states
- Greenfield sites in Texas· 1,276 sites
- Greenfield sites in Pennsylvania· 973 sites
- Greenfield sites in California· 941 sites
- Greenfield sites in Illinois· 913 sites
- Greenfield sites in Florida· 791 sites
- Greenfield sites in Michigan· 719 sites
- Greenfield sites in Ohio· 680 sites
- Greenfield sites in Kentucky· 640 sites
Dataset updated . Screening estimates derived from public data sources.
About this data
Source: GridCensus composite of HIFLD transmission and substation data, EIA, FEMA National Risk Index, FCC broadband data, PeeringDB and ISO interconnection queues, as published November 13, 2026 — GridCensus refreshes it monthly. See the methodology for how records are matched, cleaned and scored.
Cite as: GridCensus, “Greenfield datacenter sites in New Hampshire”, https://gridcensus.com/site-types/greenfield/new-hampshire (data as of November 13, 2026).
Go deeper than the public screen
Every site and score for Greenfield sites in New Hampshire is free to browse. Pro adds Watchtower on 25 sites, alerts when new candidate sites, datacenters or interconnection-queue requests appear in your markets, score and capacity history, and CSV export. Enterprise adds team seats, weekly data files for all 147,272 sites, the REST API and an MCP server for AI tools.