SOUTH MANCHESTER
SubstationNew Hampshire
At a glance
SOUTH MANCHESTER 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 SOUTH MANCHESTER, 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 |
|---|---|---|---|---|---|---|---|
| Manchester Landfill | Brownfield | NH | Hillsborough | — | 3 MW | 4.3 yrs | 70.2 |
| UNKNOWN133682 | Substation-Adjacent | MA | Middlesex County | 450 kV | 600 MW | 4.3 yrs | 68.3 |
| EAGLE | Substation-Adjacent | NH | Hillsborough County | 345 kV | 600 MW | 4.3 yrs | 68.2 |
| UNKNOWN137065 | Substation-Adjacent | NH | Hillsborough County | 230 kV | 300 MW | 4.3 yrs | 67.8 |
| AMHERST | Substation-Adjacent | NH | Hillsborough County | 345 kV | 600 MW | 4.3 yrs | 67.8 |
| BEDFORD | Substation-Adjacent | NH | Hillsborough County | 230 kV | 300 MW | 4.3 yrs | 67.7 |
| UNKNOWN132744 | Substation-Adjacent | NH | Hillsborough County | 345 kV | 600 MW | 4.3 yrs | 67.6 |
| UNKNOWN132736 | Substation-Adjacent | NH | Hillsborough County | 230 kV | 300 MW | 4.3 yrs | 67.6 |
How do candidate sites near SOUTH MANCHESTER score?
The 8 highest-scoring candidate sites within about 25 miles range from 68 to 70 on the 0–100 DC Readiness scale. They fall in Hillsborough, Middlesex County, Hillsborough 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 SOUTH MANCHESTER substation?
0 transmission lines terminate at or pass through SOUTH MANCHESTER in the HIFLD line data.
Where is SOUTH MANCHESTER substation located?
SOUTH MANCHESTER is in New Hampshire at 42.9677, -71.4545. The datacenter candidate sites closest to it are in Hillsborough, Middlesex County, Hillsborough County.
Are there datacenter candidate sites near SOUTH MANCHESTER substation?
GridCensus lists at least 8 scored candidate sites within roughly 25 miles of SOUTH MANCHESTER. The highest-scoring is Manchester Landfill at 70/100. 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, “SOUTH MANCHESTER substation, New Hampshire”, https://gridcensus.com/substations/new-hampshire/south-manchester-c60b426f (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 SOUTH MANCHESTER 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.