TAP135188
SubstationNorth Dakota
At a glance
TAP135188 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 |
|---|---|---|---|---|
| #106530 | — | — | IN SERVICE | 10.0 mi |
| #139783 | — | — | IN SERVICE | 4.2 mi |
| #179154 | — | — | IN SERVICE | 3.2 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of TAP135188, 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 |
|---|---|---|---|---|---|---|---|
| UNKNOWN173524 | Substation-Adjacent | ND | Stark County | 230 kV | 300 MW | 4.3 yrs | 63.0 |
| EC Coal Stark County | Greenfield | ND | Stark County | — | — | 4.3 yrs | 60.0 |
| TAP160664 | Substation-Adjacent | ND | Mercer County | 115 kV | 100 MW | 4.3 yrs | 58.9 |
| UNKNOWN135232 | Substation-Adjacent | ND | Stark County | 115 kV | 100 MW | 4.3 yrs | 57.9 |
| Mine Site | Former Mine | ND | Stark County | — | — | 4.3 yrs | 52.2 |
| Mine Site | Former Mine | ND | Dunn County | — | — | 4.3 yrs | 51.7 |
| Mine Site | Former Mine | ND | Dunn County | — | — | 4.3 yrs | 51.1 |
| Greenfield (UNKNOWN135232 - TAP160664) | Greenfield | ND | Mercer County | 115 kV | 100 MW | 4.3 yrs | 51.0 |
How do candidate sites near TAP135188 score?
The 8 highest-scoring candidate sites within about 25 miles range from 51 to 63 on the 0–100 DC Readiness scale. They fall in Stark County, Mercer County, Dunn 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 TAP135188 substation?
3 transmission lines terminate at or pass through TAP135188 in the HIFLD line data. Together the listed lines cover about 17.4 miles.
Where is TAP135188 substation located?
TAP135188 is in North Dakota at 46.8332, -102.3039. The datacenter candidate sites closest to it are in Stark County, Mercer County, Dunn County.
Are there datacenter candidate sites near TAP135188 substation?
GridCensus lists at least 8 scored candidate sites within roughly 25 miles of TAP135188. The highest-scoring is UNKNOWN173524 at 63/100. 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, “TAP135188 substation, North Dakota”, https://gridcensus.com/substations/north-dakota/tap135188-7887cdb7 (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 TAP135188 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.