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Gridcensus

TAP139260

Substation

Maryland

Max voltage
138
kV

TAP139260 is an electric transmission substation in Maryland. It is classified as sub-transmission (138 kv) and connects 3 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 voltage138 kV
Min voltage138 kV
Voltage classSub-transmission (138 kV)
Connected lines3

Ownership & operation

Operator not catalogued for this substation.

Coordinates39.4410, -79.1752

Nearby datacenter candidate sites

Scored candidate sites within roughly 25 miles of TAP139260, ranked by DC Readiness. Sites this close to an energized substation carry a strong speed-to-power advantage.

Candidate sites near TAP139260 substation
SiteTypeStateCountyVoltageCapacityQueue waitScore
MOUNT STORMSubstation-AdjacentWVGrant County500 kV1,000 MW3.0 yrs64.9
GREENLAND GAPSubstation-AdjacentWVGrant County500 kV1,000 MW3.0 yrs64.9
UNKNOWN162360Substation-AdjacentWVGrant County500 kV1,000 MW3.0 yrs64.6
BLACK OAKSubstation-AdjacentMDMineral County500 kV1,000 MW5.3 yrs61.2
Greenfield (MOUNT STORM - MEADOW BROOK)GreenfieldWVHardy County500 kV1,000 MW3.0 yrs60.3
North Branch (WV)BrownfieldWVGrant County—80 MW3.0 yrs59.4
EC Near North Branch (WV)GreenfieldWVGrant——3.0 yrs58.9
UNKNOWN108966Substation-AdjacentWVHardy County138 kV100 MW3.0 yrs58.3

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 TAP139260 substation, Maryland 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.