TAP205307
SubstationOregon · IDAHO POWER CO
At a glance
TAP205307 is an electric transmission substation in Oregon, on IDAHO POWER CO's transmission network. It is classified as high-voltage (230 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
Connected transmission lines
Lines terminating at or passing through this substation, by HIFLD line ID, highest voltage first.
| Line ID | Voltage | Owner | Status | Length |
|---|---|---|---|---|
| #204677 | 230 kV | IDAHO POWER CO | — | 43.1 mi |
| #204678 | 230 kV | IDAHO POWER CO | — | 15.6 mi |
| #204682 | 230 kV | IDAHO POWER CO | — | 10.3 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of TAP205307, 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 |
|---|---|---|---|---|---|---|---|
| QUARTZ | Substation-Adjacent | OR | Baker County | 230 kV | 300 MW | 3.5 yrs | 59.9 |
| UNKNOWN202147 | Substation-Adjacent | OR | Union County | 230 kV | 300 MW | 3.5 yrs | 59.5 |
| TAP205307 | Substation-Adjacent | OR | Baker County | 230 kV | 300 MW | 3.5 yrs | 59.4 |
| OZ Baker | Greenfield | OR | Baker | — | — | 3.5 yrs | 56.2 |
| UNKNOWN202611 | Substation-Adjacent | OR | Baker County | 138 kV | 100 MW | 3.5 yrs | 55.9 |
| ELM STREET | Substation-Adjacent | OR | Baker County | 115 kV | 100 MW | 3.5 yrs | 55.5 |
| UNKNOWN202818 | Substation-Adjacent | OR | Baker County | 115 kV | 100 MW | 3.5 yrs | 55.5 |
| DEAD HEAD | Substation-Adjacent | OR | Union County | 115 kV | 100 MW | 3.5 yrs | 54.9 |
Who owns the transmission lines at TAP205307?
The 3 connected lines listed above are owned by IDAHO POWER CO. Line voltages range from 230 kV to 230 kV. Their combined recorded length is about 69.1 miles.
How do candidate sites near TAP205307 score?
The 8 highest-scoring candidate sites within about 25 miles range from 55 to 60 on the 0–100 DC Readiness scale. They fall in Baker County, Union County, Baker. The Oregon average across 2,430 scored sites is 53.1. 844 of those Oregon sites are classed as substation sites (candidate locations generated at an existing substation).
Frequently asked questions
What voltage is TAP205307 substation?
TAP205307 has a maximum voltage of 230 kV. That places it in the 230–344 kV band. The median named US substation in this dataset is 115 kV, so TAP205307 is above the national midpoint.
How many transmission lines connect to TAP205307 substation?
3 transmission lines terminate at or pass through TAP205307 in the HIFLD line data. The connected lines listed here run at 230 kV. Together the listed lines cover about 69.1 miles.
Who owns TAP205307 substation?
HIFLD does not publish substation owners directly. Most of the transmission lines that end at TAP205307 belong to IDAHO POWER CO. GridCensus derives this from the line data, so confirm ownership with the utility for anything contractual.
Where is TAP205307 substation located?
TAP205307 is in Oregon at 44.8574, -117.7471. The datacenter candidate sites closest to it are in Baker County, Union County, Baker.
Are there datacenter candidate sites near TAP205307 substation?
GridCensus lists at least 8 scored candidate sites within roughly 25 miles of TAP205307. The highest-scoring is QUARTZ at 60/100. Across Oregon, the average DC Readiness score is 53.1.
More in Oregon
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, “TAP205307 substation, Oregon”, https://gridcensus.com/substations/oregon/tap205307-3bbebf88 (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 TAP205307 substation, Oregon 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.