TAP208121
SubstationColorado · BLACK HILLS/COLORADO ELEC.UTIL
At a glance
TAP208121 is an electric transmission substation in Colorado, on BLACK HILLS/COLORADO ELEC.UTIL's transmission network. It is classified as distribution (<69 kv) and connects 1 transmission line. 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
Connected transmission lines
Lines terminating at or passing through this substation, by HIFLD line ID, highest voltage first.
| Line ID | Voltage | Owner | Status | Length |
|---|---|---|---|---|
| #209803 | 46 kV | BLACK HILLS/COLORADO ELEC.UTIL | — | 4.6 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of TAP208121, 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 |
|---|---|---|---|---|---|---|---|
| MIDWAY | Substation-Adjacent | CO | El Paso County | 345 kV | 600 MW | 4.3 yrs | 63.8 |
| UNKNOWN201277 | Substation-Adjacent | CO | El Paso County | 230 kV | 300 MW | 3.5 yrs | 62.3 |
| UNKNOWN202852 | Substation-Adjacent | CO | El Paso County | 115 kV | 100 MW | 3.5 yrs | 59.5 |
| EC Near South Plant (CO) | Greenfield | CO | El Paso | — | — | 4.3 yrs | 59.4 |
| PUEBLO | Substation-Adjacent | CO | Pueblo County | 230 kV | 300 MW | 3.5 yrs | 59.1 |
| EC Near Pueblo Airport Generating Station | Greenfield | CO | Pueblo | — | — | 3.5 yrs | 58.8 |
| NIXON | Substation-Adjacent | CO | El Paso County | 115 kV | 100 MW | 3.5 yrs | 58.4 |
| UNKNOWN202854 | Substation-Adjacent | CO | El Paso County | 115 kV | 100 MW | 3.5 yrs | 58.3 |
Who owns the transmission lines at TAP208121?
The 1 connected line listed above is owned by BLACK HILLS/COLORADO ELEC.UTIL. Line voltages range from 46 kV to 46 kV. Their combined recorded length is about 4.6 miles.
How do candidate sites near TAP208121 score?
The 8 highest-scoring candidate sites within about 25 miles range from 58 to 64 on the 0–100 DC Readiness scale. They fall in El Paso County, El Paso, Pueblo County, Pueblo. The Colorado average across 3,428 scored sites is 50.6. 899 of those Colorado sites are classed as substation sites (candidate locations generated at an existing substation).
Frequently asked questions
What voltage is TAP208121 substation?
TAP208121 has a maximum voltage of 46 kV. That places it in the below 69 kV band. The median named US substation in this dataset is 115 kV, so TAP208121 is below the national midpoint.
How many transmission lines connect to TAP208121 substation?
1 transmission line terminate at or pass through TAP208121 in the HIFLD line data. The connected lines listed here run at 46 kV. Together the listed lines cover about 4.6 miles.
Who owns TAP208121 substation?
HIFLD does not publish substation owners directly. Most of the transmission lines that end at TAP208121 belong to BLACK HILLS/COLORADO ELEC.UTIL. GridCensus derives this from the line data, so confirm ownership with the utility for anything contractual.
Where is TAP208121 substation located?
TAP208121 is in Colorado at 38.3669, -104.9942. The datacenter candidate sites closest to it are in El Paso County, El Paso, Pueblo County.
Are there datacenter candidate sites near TAP208121 substation?
GridCensus lists at least 8 scored candidate sites within roughly 25 miles of TAP208121. The highest-scoring is MIDWAY at 64/100. Across Colorado, the average DC Readiness score is 50.6.
More in Colorado
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, “TAP208121 substation, Colorado”, https://gridcensus.com/substations/colorado/tap208121-c6b6755b (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 TAP208121 substation, Colorado 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.