TAP204928
SubstationIdaho · IDAHO COUNTY L&P COOP ASSN, INC
At a glance
TAP204928 is an electric transmission substation in Idaho, on IDAHO COUNTY L&P COOP 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 |
|---|---|---|---|---|
| #203529 | 69 kV | IDAHO COUNTY L&P COOP ASSN, INC | — | 1.1 mi |
| #203530 | 69 kV | IDAHO COUNTY L&P COOP ASSN, INC | — | 0.0 mi |
| #208885 | 69 kV | IDAHO COUNTY L&P COOP ASSN, INC | — | 12.4 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of TAP204928, 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 |
|---|---|---|---|---|---|---|---|
| OZ Idaho | Greenfield | ID | Idaho | — | — | 5.0 yrs | 56.5 |
| OZ Lewis | Greenfield | ID | Lewis | — | — | 5.0 yrs | 55.1 |
| UNKNOWN204930 | Substation-Adjacent | ID | Lewis County | 115 kV | 100 MW | 5.0 yrs | 53.0 |
| EC FFE Lewis County | Greenfield | ID | Lewis County | — | — | 5.0 yrs | 52.2 |
| TAP204932 | Substation-Adjacent | ID | Lewis County | 69 kV | 50 MW | 5.0 yrs | 51.5 |
| UNKNOWN204929 | Substation-Adjacent | ID | Lewis County | 69 kV | 50 MW | 5.0 yrs | 51.5 |
| TAP204933 | Substation-Adjacent | ID | Lewis County | 69 kV | 50 MW | 5.0 yrs | 51.5 |
| CRAIGMONT | Substation-Adjacent | ID | Lewis County | 69 kV | 50 MW | 5.0 yrs | 51.5 |
Who owns the transmission lines at TAP204928?
The 3 connected lines listed above are owned by IDAHO COUNTY L&P COOP ASSN, INC. Line voltages range from 69 kV to 69 kV. Their combined recorded length is about 13.5 miles.
How do candidate sites near TAP204928 score?
The 8 highest-scoring candidate sites within about 25 miles range from 52 to 57 on the 0–100 DC Readiness scale. They fall in Idaho, Lewis, Lewis County. The Idaho average across 2,171 scored sites is 51.7. 646 of those Idaho sites are classed as substation sites (candidate locations generated at an existing substation).
Frequently asked questions
What voltage is TAP204928 substation?
TAP204928 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 TAP204928 is below the national midpoint.
How many transmission lines connect to TAP204928 substation?
3 transmission lines terminate at or pass through TAP204928 in the HIFLD line data. The connected lines listed here run at 69 kV. Together the listed lines cover about 13.5 miles.
Who owns TAP204928 substation?
HIFLD does not publish substation owners directly. Most of the transmission lines that end at TAP204928 belong to IDAHO COUNTY L&P COOP ASSN, INC. GridCensus derives this from the line data, so confirm ownership with the utility for anything contractual.
Where is TAP204928 substation located?
TAP204928 is in Idaho at 45.9358, -116.1249. The datacenter candidate sites closest to it are in Idaho, Lewis, Lewis County.
Are there datacenter candidate sites near TAP204928 substation?
GridCensus lists at least 8 scored candidate sites within roughly 25 miles of TAP204928. The highest-scoring is OZ Idaho at 57/100. Across Idaho, the average DC Readiness score is 51.7.
More in Idaho
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, “TAP204928 substation, Idaho”, https://gridcensus.com/substations/idaho/tap204928-a6055b43 (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 TAP204928 substation, Idaho 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.