TAP163439
SubstationWisconsin · AMERICAN TRANSMISSION CO
At a glance
TAP163439 is an electric transmission substation in Wisconsin, operated by AMERICAN TRANSMISSION CO. 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
Connected transmission lines
Lines terminating at or passing through this substation, by HIFLD line ID, highest voltage first.
| Line ID | Voltage | Owner | Status | Length |
|---|---|---|---|---|
| #159534 | 69 kV | AMERICAN TRANSMISSION CO | IN SERVICE | 3.8 mi |
| #159535 | 69 kV | AMERICAN TRANSMISSION CO | IN SERVICE | 0.8 mi |
| #159851 | 69 kV | AMERICAN TRANSMISSION CO | IN SERVICE | 8.9 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of TAP163439, 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 |
|---|---|---|---|---|---|---|---|
| OZ Green | Greenfield | WI | Green | — | — | 4.3 yrs | 59.6 |
| WALLY ROAD | Substation-Adjacent | WI | Dane County | 69 kV | 50 MW | 4.3 yrs | 59.4 |
| MOUNT HOREB | Substation-Adjacent | WI | Dane County | 69 kV | 50 MW | 4.3 yrs | 59.1 |
| NORTH MONROE | Substation-Adjacent | WI | Green County | 138 kV | 100 MW | 4.3 yrs | 59.0 |
| EC Near Argyle | Greenfield | WI | Lafayette | — | — | 4.3 yrs | 58.9 |
| EC Near Argyle | Greenfield | WI | Lafayette | — | — | 4.3 yrs | 58.9 |
| EC Near Argyle | Greenfield | WI | Lafayette | — | — | 4.3 yrs | 57.7 |
| EC Near Argyle | Greenfield | WI | Lafayette | — | — | 4.3 yrs | 57.5 |
Who owns the transmission lines at TAP163439?
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 13.5 miles.
How do candidate sites near TAP163439 score?
The 8 highest-scoring candidate sites within about 25 miles range from 58 to 60 on the 0–100 DC Readiness scale. They fall in Green, Dane County, Green County, Lafayette. 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 TAP163439 substation?
TAP163439 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 TAP163439 is below the national midpoint.
How many transmission lines connect to TAP163439 substation?
3 transmission lines terminate at or pass through TAP163439 in the HIFLD line data. The connected lines listed here run at 69 kV. Together the listed lines cover about 13.5 miles.
Who owns TAP163439 substation?
HIFLD lists AMERICAN TRANSMISSION CO as the operator of TAP163439.
Where is TAP163439 substation located?
TAP163439 is in Wisconsin at 42.6209, -89.9900. The datacenter candidate sites closest to it are in Green, Dane County, Green County.
Are there datacenter candidate sites near TAP163439 substation?
GridCensus lists at least 8 scored candidate sites within roughly 25 miles of TAP163439. The highest-scoring is OZ Green at 60/100. 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, “TAP163439 substation, Wisconsin”, https://gridcensus.com/substations/wisconsin/tap163439-f0e6660e (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 TAP163439 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.