TAP134637
SubstationMinnesota
At a glance
TAP134637 is an electric transmission substation in Minnesota. 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 |
|---|---|---|---|---|
| #101472 | 115 kV | — | IN SERVICE | 9.4 mi |
| #111263 | 115 kV | — | IN SERVICE | 0.0 mi |
| #122331 | 115 kV | — | IN SERVICE | 0.2 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of TAP134637, 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 |
|---|---|---|---|---|---|---|---|
| FORBES | Substation-Adjacent | MN | St. Louis County | 500 kV | 1,000 MW | 4.3 yrs | 65.2 |
| UNKNOWN129377 | Substation-Adjacent | MN | St. Louis County | 230 kV | 300 MW | 4.3 yrs | 61.1 |
| UNKNOWN129264 | Substation-Adjacent | MN | Carlton County | 115 kV | 100 MW | 4.3 yrs | 60.1 |
| Greenfield (ROSEAU COUNTY - FORBES) | Greenfield | MN | St. Louis County | 500 kV | 1,000 MW | 4.3 yrs | 59.0 |
| Greenfield (FORBES - CHISAGO) | Greenfield | MN | St. Louis County | 500 kV | 1,000 MW | 4.3 yrs | 58.3 |
| UNKNOWN130349 | Substation-Adjacent | MN | St. Louis County | 115 kV | 100 MW | 4.3 yrs | 57.4 |
| UNKNOWN129275 | Substation-Adjacent | MN | St. Louis County | 138 kV | 100 MW | 4.3 yrs | 57.1 |
| TAP134628 | Substation-Adjacent | MN | St. Louis County | 115 kV | 100 MW | 4.3 yrs | 56.7 |
How do candidate sites near TAP134637 score?
The 8 highest-scoring candidate sites within about 25 miles range from 57 to 65 on the 0–100 DC Readiness scale. They fall in St. Louis County, Carlton County. The Minnesota average across 3,216 scored sites is 55.7. 1,270 of those Minnesota sites are classed as substation sites (candidate locations generated at an existing substation).
Frequently asked questions
What voltage is TAP134637 substation?
TAP134637 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 TAP134637 is at the national midpoint.
How many transmission lines connect to TAP134637 substation?
3 transmission lines terminate at or pass through TAP134637 in the HIFLD line data. The connected lines listed here run at 115 kV. Together the listed lines cover about 9.6 miles.
Where is TAP134637 substation located?
TAP134637 is in Minnesota at 47.3740, -92.5693. The datacenter candidate sites closest to it are in St. Louis County, Carlton County.
Are there datacenter candidate sites near TAP134637 substation?
GridCensus lists at least 8 scored candidate sites within roughly 25 miles of TAP134637. The highest-scoring is FORBES at 65/100. Across Minnesota, the average DC Readiness score is 55.7.
More in Minnesota
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, “TAP134637 substation, Minnesota”, https://gridcensus.com/substations/minnesota/tap134637-f2f99489 (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 TAP134637 substation, Minnesota 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.