TAP166959
SubstationNorth Dakota
At a glance
TAP166959 is an electric transmission substation in North Dakota. It is classified as unclassified 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 |
|---|---|---|---|---|
| #168154 | — | — | IN SERVICE | 15.6 mi |
| #168155 | — | — | IN SERVICE | 0.0 mi |
| #168156 | — | — | IN SERVICE | 1.0 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of TAP166959, 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 Sioux | Greenfield | ND | Sioux | — | — | 4.3 yrs | 59.4 |
| TAP135079 | Substation-Adjacent | SD | Corson County | 115 kV | 100 MW | 4.3 yrs | 57.7 |
| Old Wishing Well Bar | Industrial | ND | Sioux County | — | — | 4.3 yrs | 52.0 |
| Old Hardware Store | Industrial | SD | Corson County | — | — | 4.3 yrs | 51.8 |
| Nape Waste Food Pantry | Industrial | SD | Corson County | — | — | 4.3 yrs | 51.8 |
| Long Soldier Dump Site | Industrial | ND | Sioux County | — | — | 4.3 yrs | 51.7 |
| Standing Rock Sioux Tribe EPA Building | Industrial | ND | Sioux County | — | — | 4.3 yrs | 51.6 |
| Old Warrior Motel | Industrial | ND | Sioux County | — | — | 4.3 yrs | 51.6 |
How do candidate sites near TAP166959 score?
The 8 highest-scoring candidate sites within about 25 miles range from 52 to 59 on the 0–100 DC Readiness scale. They fall in Sioux, Corson County, Sioux County. The North Dakota average across 1,020 scored sites is 55.7. 453 of those North Dakota sites are classed as substation sites (candidate locations generated at an existing substation).
Frequently asked questions
How many transmission lines connect to TAP166959 substation?
3 transmission lines terminate at or pass through TAP166959 in the HIFLD line data. Together the listed lines cover about 16.7 miles.
Where is TAP166959 substation located?
TAP166959 is in North Dakota at 46.0898, -100.6764. The datacenter candidate sites closest to it are in Sioux, Corson County, Sioux County.
Are there datacenter candidate sites near TAP166959 substation?
GridCensus lists at least 8 scored candidate sites within roughly 25 miles of TAP166959. The highest-scoring is OZ Sioux at 59/100. Across North Dakota, the average DC Readiness score is 55.7.
More in North 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, “TAP166959 substation, North Dakota”, https://gridcensus.com/substations/north-dakota/tap166959-6d74048a (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 TAP166959 substation, North 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.