TAP144163
SubstationSouth Dakota
At a glance
TAP144163 is an electric transmission substation in South Dakota. It is classified as sub-transmission (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
Ownership
No owner is recorded for the lines that connect here.
Connected transmission lines
Lines terminating at or passing through this substation, by HIFLD line ID, highest voltage first.
| Line ID | Voltage | Owner | Status | Length |
|---|---|---|---|---|
| #109684 | 115 kV | — | — | 1.0 mi |
| #119290 | 115 kV | — | IN SERVICE | 5.1 mi |
| #141007 | 115 kV | — | IN SERVICE | 0.0 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of TAP144163, 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 |
|---|---|---|---|---|---|---|---|
| SPLIT ROCK | Substation-Adjacent | SD | Minnehaha County | 345 kV | 600 MW | 4.3 yrs | 67.7 |
| SIOUX FALLS | Substation-Adjacent | SD | Minnehaha County | 230 kV | 300 MW | 4.3 yrs | 66.6 |
| VIRGIL FODNESS | Substation-Adjacent | SD | Lincoln County | 230 kV | 300 MW | 4.3 yrs | 65.2 |
| UNKNOWN130480 | Substation-Adjacent | IA | Lyon County | 230 kV | 300 MW | 4.3 yrs | 63.9 |
| EC Near Pathfinder | Greenfield | SD | Minnehaha | — | — | 4.3 yrs | 63.7 |
| OZ Minnehaha | Greenfield | SD | Minnehaha | — | — | 4.3 yrs | 63.5 |
| UNKNOWN130479 | Substation-Adjacent | IA | Lyon County | 230 kV | 300 MW | 4.3 yrs | 63.2 |
| EC Near Hills | Greenfield | MN | Rock | — | — | 4.3 yrs | 62.7 |
How do candidate sites near TAP144163 score?
The 8 highest-scoring candidate sites within about 25 miles range from 63 to 68 on the 0–100 DC Readiness scale. They fall in Minnehaha County, Lincoln County, Lyon County, Minnehaha. The South Dakota average across 1,151 scored sites is 54.7. 477 of those South Dakota sites are classed as substation sites (candidate locations generated at an existing substation).
Frequently asked questions
What voltage is TAP144163 substation?
TAP144163 has a maximum voltage of 115 kV. That places it in the 115–229 kV band. The median named US substation in this dataset is 115 kV, so TAP144163 is at the national midpoint.
How many transmission lines connect to TAP144163 substation?
3 transmission lines terminate at or pass through TAP144163 in the HIFLD line data. The connected lines listed here run at 115 kV. Together the listed lines cover about 6.2 miles.
Where is TAP144163 substation located?
TAP144163 is in South Dakota at 43.5442, -96.5509. The datacenter candidate sites closest to it are in Minnehaha County, Lincoln County, Lyon County.
Are there datacenter candidate sites near TAP144163 substation?
GridCensus lists at least 8 scored candidate sites within roughly 25 miles of TAP144163. The highest-scoring is SPLIT ROCK at 68/100. Across South Dakota, the average DC Readiness score is 54.7.
More in South Dakota
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, “TAP144163 substation, South Dakota”, https://gridcensus.com/substations/south-dakota/tap144163-150e0406 (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 TAP144163 substation, South Dakota 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.