UNH 1 & UNH 2
SubstationNew Hampshire
At a glance
UNH 1 & UNH 2 is an electric transmission substation in New Hampshire. It is classified as unclassified and connects 0 transmission lines. Substation proximity is one of the strongest speed-to-power signals for siting a datacenter — interconnection distance to an energized, high-voltage bus is often the binding constraint on time-to-energization.
Voltage & classification
Ownership
No owner is recorded for the lines that connect here.
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of UNH 1 & UNH 2, ranked by DC Readiness. Sites this close to an energized substation carry a strong speed-to-power advantage.
| Site | Type | State | County | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|---|---|
| WEST AMESBURY | Substation-Adjacent | MA | Rockingham County | 345 kV | 600 MW | 4.3 yrs | 66.5 |
| NEWINGTON 345KV | Substation-Adjacent | NH | Rockingham County | 345 kV | 600 MW | 4.3 yrs | 66.4 |
| UNKNOWN132760 | Substation-Adjacent | NH | Rockingham County | 345 kV | 600 MW | 4.3 yrs | 66.4 |
| UNKNOWN132750 | Substation-Adjacent | NH | Rockingham County | 345 kV | 600 MW | 4.3 yrs | 66.2 |
| TIMBER SWAMP | Substation-Adjacent | NH | Rockingham County | 345 kV | 600 MW | 4.3 yrs | 66.1 |
| WARD HILL | Substation-Adjacent | MA | Essex County | 345 kV | 600 MW | 4.3 yrs | 65.9 |
| DEERFIELD | Substation-Adjacent | NH | Rockingham County | 345 kV | 600 MW | 4.3 yrs | 65.8 |
| ELIOT | Substation-Adjacent | ME | Strafford County | 345 kV | 600 MW | 4.3 yrs | 65.3 |
How do candidate sites near UNH 1 & UNH 2 score?
The 8 highest-scoring candidate sites within about 25 miles range from 65 to 67 on the 0–100 DC Readiness scale. They fall in Rockingham County, Essex County, Strafford County. The New Hampshire average across 539 scored sites is 54.5. 83 of those New Hampshire sites are classed as substation sites (candidate locations generated at an existing substation).
Frequently asked questions
How many transmission lines connect to UNH 1 & UNH 2 substation?
0 transmission lines terminate at or pass through UNH 1 & UNH 2 in the HIFLD line data.
Where is UNH 1 & UNH 2 substation located?
UNH 1 & UNH 2 is in New Hampshire at 43.1362, -70.9365. The datacenter candidate sites closest to it are in Rockingham County, Essex County, Strafford County.
Are there datacenter candidate sites near UNH 1 & UNH 2 substation?
GridCensus lists at least 8 scored candidate sites within roughly 25 miles of UNH 1 & UNH 2. The highest-scoring is WEST AMESBURY at 67/100. Across New Hampshire, the average DC Readiness score is 54.5.
More in New Hampshire
About this data
Source: HIFLD Electric Substations and Transmission Lines (U.S. Department of Homeland Security), as published June 29, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: GridCensus, “UNH 1 & UNH 2 substation, New Hampshire”, https://gridcensus.com/substations/new-hampshire/unh-1-unh-2-6ecbe074 (data as of June 29, 2026).
Dataset updated . Screening estimates derived from public data sources.
Substation attributes are derived from public HIFLD / EIA infrastructure data and may lag real-world upgrades or retirements. Voltage and connected-line counts are screening figures — confirm available capacity and interconnection terms directly with the operating utility and ISO.
Go deeper than the public screen
Every site and score for UNH 1 & UNH 2 substation, 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.