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Gridcensus

TAP162966

Substation

Wisconsin · AMERICAN TRANSMISSION CO

Max voltage
69
kV

At a glance

TAP162966 is a 69 kV electric substation in Wisconsin on AMERICAN TRANSMISSION CO's transmission network, recorded in the HIFLD transmission dataset. 3 transmission lines connect to it. The highest-scoring datacenter candidate site within about 25 miles is NELSON DEWEY SW YD in Clayton County, with a DC Readiness score of 61/100.

TAP162966 is an electric transmission substation in Wisconsin, on AMERICAN TRANSMISSION CO's transmission network. It is classified as distribution (69–115 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 voltage69 kV
Min voltage69 kV
Voltage classDistribution (69–115 kV)
Connected lines3

Ownership

Line owner (most lines)AMERICAN TRANSMISSION CO
Coordinates43.0857, -90.6270

Connected transmission lines

Lines terminating at or passing through this substation, by HIFLD line ID, highest voltage first.

Line IDVoltageOwnerStatusLength
#16055369 kV—IN SERVICE3.7 mi
#16056669 kV—IN SERVICE2.4 mi
#16672269 kVAMERICAN TRANSMISSION COIN SERVICE15.2 mi

Browse the full transmission-line map →

Nearby datacenter candidate sites

Scored candidate sites within roughly 25 miles of TAP162966, ranked by DC Readiness. Sites this close to an energized substation carry a strong speed-to-power advantage.

Candidate sites near TAP162966 substation
SiteTypeStateCountyVoltageCapacityQueue waitScore
NELSON DEWEY SW YDSubstation-AdjacentWIClayton County161 kV100 MW4.3 yrs61.4
EC Coal Grant CountyGreenfieldWIGrant County——4.3 yrs59.4
EC Near Nelson Dewey Generating StationGreenfieldWIGrant——4.3 yrs59.2
UNKNOWN131553Substation-AdjacentWIDubuque County161 kV100 MW4.3 yrs59.2
EC Coal Vernon CountyGreenfieldWIVernon County——4.3 yrs59.2
EC Near Nelson Dewey Generating StationGreenfieldWIGrant——4.3 yrs58.6
EC Near Nelson Dewey Generating StationGreenfieldWIGrant——4.3 yrs58.5
TAP136965Substation-AdjacentWIGrant County138 kV100 MW4.3 yrs58.2

Who owns the transmission lines at TAP162966?

The 3 connected lines listed above are owned by AMERICAN TRANSMISSION CO. Line voltages range from 69 kV to 69 kV. Their combined recorded length is about 21.3 miles.

How do candidate sites near TAP162966 score?

The 8 highest-scoring candidate sites within about 25 miles range from 58 to 61 on the 0–100 DC Readiness scale. They fall in Clayton County, Grant County, Grant, Dubuque County. The Wisconsin average across 3,340 scored sites is 55.4. 1,248 of those Wisconsin sites are classed as substation sites (candidate locations generated at an existing substation).

Frequently asked questions

What voltage is TAP162966 substation?

TAP162966 has a maximum voltage of 69 kV. That places it in the 69–114 kV band. The median named US substation in this dataset is 115 kV, so TAP162966 is below the national midpoint.

How many transmission lines connect to TAP162966 substation?

3 transmission lines terminate at or pass through TAP162966 in the HIFLD line data. The connected lines listed here run at 69 kV. Together the listed lines cover about 21.3 miles.

Who owns TAP162966 substation?

HIFLD does not publish substation owners directly. Most of the transmission lines that end at TAP162966 belong to AMERICAN TRANSMISSION CO. GridCensus derives this from the line data, so confirm ownership with the utility for anything contractual.

Where is TAP162966 substation located?

TAP162966 is in Wisconsin at 43.0857, -90.6270. The datacenter candidate sites closest to it are in Clayton County, Grant County, Grant.

Are there datacenter candidate sites near TAP162966 substation?

GridCensus lists at least 8 scored candidate sites within roughly 25 miles of TAP162966. The highest-scoring is NELSON DEWEY SW YD at 61/100. Across Wisconsin, the average DC Readiness score is 55.4.

More in Wisconsin

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, “TAP162966 substation, Wisconsin”, https://gridcensus.com/substations/wisconsin/tap162966-a6e2bb38 (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 TAP162966 substation, Wisconsin 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.