TAP204406
SubstationWyoming · POWDER RIVER ENERGY CORPORATION
At a glance
TAP204406 is an electric transmission substation in Wyoming, on POWDER RIVER ENERGY CORPORATION's transmission network. 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
Connected transmission lines
Lines terminating at or passing through this substation, by HIFLD line ID, highest voltage first.
| Line ID | Voltage | Owner | Status | Length |
|---|---|---|---|---|
| #202702 | 115 kV | POWDER RIVER ENERGY CORPORATION | — | 13.6 mi |
| #204602 | 115 kV | POWDER RIVER ENERGY CORPORATION | — | 0.1 mi |
| #204604 | 115 kV | POWDER RIVER ENERGY CORPORATION | — | 4.2 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of TAP204406, 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 |
|---|---|---|---|---|---|---|---|
| UNKNOWN201481 | Substation-Adjacent | WY | Weston County | 230 kV | 300 MW | 4.3 yrs | 60.8 |
| TAP205630 | Substation-Adjacent | WY | Weston County | 230 kV | 300 MW | 4.3 yrs | 60.8 |
| EC Near Osage (WY) | Greenfield | WY | Weston | — | — | 4.3 yrs | 60.5 |
| EC Near Osage (WY) | Greenfield | WY | Weston | — | — | 4.3 yrs | 60.3 |
| EC Near Osage (WY) | Greenfield | WY | Weston | — | — | 4.3 yrs | 60.1 |
| EC Near Osage (WY) | Greenfield | WY | Weston | — | — | 4.3 yrs | 59.9 |
| EC Near Osage (WY) | Greenfield | WY | Weston | — | — | 4.3 yrs | 59.8 |
| EC Near Osage (WY) | Greenfield | WY | Weston | — | — | 4.3 yrs | 59.4 |
Who owns the transmission lines at TAP204406?
The 3 connected lines listed above are owned by POWDER RIVER ENERGY CORPORATION. Line voltages range from 115 kV to 115 kV. Their combined recorded length is about 18 miles.
How do candidate sites near TAP204406 score?
The 8 highest-scoring candidate sites within about 25 miles range from 59 to 61 on the 0–100 DC Readiness scale. They fall in Weston County, Weston. The Wyoming average across 1,639 scored sites is 52.2. 441 of those Wyoming sites are classed as substation sites (candidate locations generated at an existing substation).
Frequently asked questions
What voltage is TAP204406 substation?
TAP204406 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 TAP204406 is at the national midpoint.
How many transmission lines connect to TAP204406 substation?
3 transmission lines terminate at or pass through TAP204406 in the HIFLD line data. The connected lines listed here run at 115 kV. Together the listed lines cover about 18 miles.
Who owns TAP204406 substation?
HIFLD does not publish substation owners directly. Most of the transmission lines that end at TAP204406 belong to POWDER RIVER ENERGY CORPORATION. GridCensus derives this from the line data, so confirm ownership with the utility for anything contractual.
Where is TAP204406 substation located?
TAP204406 is in Wyoming at 43.8466, -104.2174. The datacenter candidate sites closest to it are in Weston County, Weston.
Are there datacenter candidate sites near TAP204406 substation?
GridCensus lists at least 8 scored candidate sites within roughly 25 miles of TAP204406. The highest-scoring is UNKNOWN201481 at 61/100. Across Wyoming, the average DC Readiness score is 52.2.
More in Wyoming
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, “TAP204406 substation, Wyoming”, https://gridcensus.com/substations/wyoming/tap204406-e3fc4521 (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 TAP204406 substation, Wyoming 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.