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Gridcensus

TOMPKINS

Substation

Michigan

Max voltage
345
kV

TOMPKINS is an electric transmission substation in Michigan. It is classified as high-voltage (345 kv) and connects 6 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 voltage138 kV
Voltage classHigh-voltage (345 kV)
Connected lines6

Ownership & operation

Operator not catalogued for this substation.

Coordinates42.4154, -84.4855

Nearby datacenter candidate sites

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

Candidate sites near TOMPKINS substation
SiteTypeStateCountyVoltageCapacityQueue waitScore
EC Near Eckert StationGreenfieldMIIngham2.2 yrs67.8
EC Coal Ingham CountyGreenfieldMIIngham County2.2 yrs67.3
ONEIDASubstation-AdjacentMIEaton County345 kV600 MW3.8 yrs67.0
EC Near Eckert StationGreenfieldMIIngham2.2 yrs66.9
EC Coal Eaton CountyGreenfieldMIEaton County2.2 yrs66.5
EC Coal Eaton CountyGreenfieldMIEaton County2.2 yrs66.5
Burcham Park LandfillBrownfieldMIIngham138 kV0 MW2.8 yrs66.5
OZ InghamGreenfieldMIIngham2.2 yrs66.0

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

This page shows a public slice of the GridCensus dataset for TOMPKINS substation, Michigan. Pro and Enterprise plans unlock the full 164,098-site catalog, raw sub-scores, parcel ownership, interconnection-queue detail, saved searches, and programmatic API access.