TAP204045
SubstationColorado · SAN ISABEL ELECTRIC ASSN, INC
At a glance
TAP204045 is an electric transmission substation in Colorado, on SAN ISABEL ELECTRIC ASSN, INC's transmission network. It is classified as distribution (69–115 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
Connected transmission lines
Lines terminating at or passing through this substation, by HIFLD line ID, highest voltage first.
| Line ID | Voltage | Owner | Status | Length |
|---|---|---|---|---|
| #202030 | 69 kV | SAN ISABEL ELECTRIC ASSN, INC | — | 0.7 mi |
| #202031 | 69 kV | TRI-STATE G & T ASSN, INC | — | 16.1 mi |
| #202046 | 69 kV | SAN ISABEL ELECTRIC ASSN, INC | — | 3.4 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of TAP204045, 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 |
|---|---|---|---|---|---|---|---|
| WALSENBURG | Substation-Adjacent | CO | Huerfano County | 230 kV | 300 MW | 4.3 yrs | 58.0 |
| UNKNOWN202848 | Substation-Adjacent | CO | Costilla County | 230 kV | 300 MW | 4.3 yrs | 57.7 |
| BURRO CANYON | Substation-Adjacent | CO | Colfax County | 230 kV | 300 MW | 4.3 yrs | 56.1 |
| EC Coal Las Animas County | Greenfield | CO | Las Animas County | — | — | 4.3 yrs | 55.9 |
| EC Near Trinidad (CO) | Greenfield | CO | Las Animas | — | — | 4.3 yrs | 55.7 |
| EC Near Trinidad (CO) | Greenfield | CO | Las Animas | — | — | 4.3 yrs | 54.9 |
| OZ Las Animas | Greenfield | CO | Las Animas | — | — | 4.3 yrs | 54.4 |
| EC Near Trinidad (CO) | Greenfield | CO | Las Animas | — | — | 4.3 yrs | 53.3 |
Who owns the transmission lines at TAP204045?
The 3 connected lines listed above are owned by SAN ISABEL ELECTRIC ASSN, INC, TRI-STATE G & T ASSN, INC. Line voltages range from 69 kV to 69 kV. Their combined recorded length is about 20.2 miles.
How do candidate sites near TAP204045 score?
The 8 highest-scoring candidate sites within about 25 miles range from 53 to 58 on the 0–100 DC Readiness scale. They fall in Huerfano County, Costilla County, Colfax County, Las Animas County. 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 TAP204045 substation?
TAP204045 has a maximum voltage of 69 kV. That places it in the 69–114 kV band. The median named US substation in this dataset is 115 kV, so TAP204045 is below the national midpoint.
How many transmission lines connect to TAP204045 substation?
3 transmission lines terminate at or pass through TAP204045 in the HIFLD line data. The connected lines listed here run at 69 kV. Together the listed lines cover about 20.2 miles.
Who owns TAP204045 substation?
HIFLD does not publish substation owners directly. Most of the transmission lines that end at TAP204045 belong to SAN ISABEL ELECTRIC ASSN, INC, and others to TRI-STATE G & T ASSN, INC. GridCensus derives this from the line data, so confirm ownership with the utility for anything contractual.
Where is TAP204045 substation located?
TAP204045 is in Colorado at 37.2262, -104.4908. The datacenter candidate sites closest to it are in Huerfano County, Costilla County, Colfax County.
Are there datacenter candidate sites near TAP204045 substation?
GridCensus lists at least 8 scored candidate sites within roughly 25 miles of TAP204045. The highest-scoring is WALSENBURG at 58/100. 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, “TAP204045 substation, Colorado”, https://gridcensus.com/substations/colorado/tap204045-f877308c (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 TAP204045 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.