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Gridcensus

TIMBER SWAMP

Substation

New Hampshire

Max voltage
345
kV

TIMBER SWAMP is an electric transmission substation in New Hampshire. It is classified as high-voltage (345 kv) and connects 2 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

Max voltage345 kV
Min voltage345 kV
Voltage classHigh-voltage (345 kV)
Connected lines2

Ownership & operation

Operator not catalogued for this substation.

Coordinates42.9498, -70.8688

Nearby datacenter candidate sites

Scored candidate sites within roughly 25 miles of TIMBER SWAMP, ranked by DC Readiness. Sites this close to an energized substation carry a strong speed-to-power advantage.

Candidate sites near TIMBER SWAMP substation
SiteTypeStateCountyVoltageCapacityQueue waitScore
UNKNOWN132760Substation-AdjacentNHRockingham County345 kV600 MW3.9 yrs67.5
NEWINGTON 345KVSubstation-AdjacentNHRockingham County345 kV600 MW3.9 yrs67.5
UNKNOWN132750Substation-AdjacentNHRockingham County345 kV600 MW3.9 yrs67.3
TIMBER SWAMPSubstation-AdjacentNHRockingham County345 kV600 MW3.9 yrs67.2
DEERFIELDSubstation-AdjacentNHRockingham County345 kV600 MW3.9 yrs67.0
TEWKSBURY NO. 22ASubstation-AdjacentMAMiddlesex County345 kV600 MW3.9 yrs65.2
WEST AMESBURYSubstation-AdjacentMARockingham County345 kV600 MW3.9 yrs64.8
ELIOTSubstation-AdjacentMEStrafford County345 kV600 MW3.9 yrs64.7

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 TIMBER SWAMP 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.