TAP205458
SubstationOregon · PACIFICORP
At a glance
TAP205458 is an electric transmission substation in Oregon, on PACIFICORP'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
Connected transmission lines
Lines terminating at or passing through this substation, by HIFLD line ID, highest voltage first.
| Line ID | Voltage | Owner | Status | Length |
|---|---|---|---|---|
| #204213 | 115 kV | PACIFICORP | — | 2.1 mi |
| #204214 | 115 kV | PACIFICORP | — | 0.0 mi |
| #204215 | 115 kV | PACIFICORP | — | 2.1 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of TAP205458, 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 |
|---|---|---|---|---|---|---|---|
| DIXONVILLE 500KV | Substation-Adjacent | OR | Douglas County | 500 kV | 1,000 MW | 3.5 yrs | 64.9 |
| GLENDALE | Substation-Adjacent | OR | Josephine County | 230 kV | 300 MW | 3.5 yrs | 61.1 |
| NICKEL MOUNTAIN | Substation-Adjacent | OR | Douglas County | 230 kV | 300 MW | 3.5 yrs | 61.0 |
| UNKNOWN208721 | Substation-Adjacent | OR | Douglas County | 230 kV | 300 MW | 3.5 yrs | 61.0 |
| DIXONVILLE 230KV | Substation-Adjacent | OR | Douglas County | 230 kV | 300 MW | 3.5 yrs | 60.6 |
| HANNA TAP | Substation-Adjacent | OR | Douglas County | 230 kV | 300 MW | 3.5 yrs | 60.6 |
| TAP203150 | Substation-Adjacent | OR | Douglas County | 230 kV | 300 MW | 3.5 yrs | 60.3 |
| TAP206991 | Substation-Adjacent | OR | Douglas County | 138 kV | 100 MW | 3.5 yrs | 57.0 |
Who owns the transmission lines at TAP205458?
The 3 connected lines listed above are owned by PACIFICORP. Line voltages range from 115 kV to 115 kV. Their combined recorded length is about 4.3 miles.
How do candidate sites near TAP205458 score?
The 8 highest-scoring candidate sites within about 25 miles range from 57 to 65 on the 0–100 DC Readiness scale. They fall in Douglas County, Josephine County. 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 TAP205458 substation?
TAP205458 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 TAP205458 is at the national midpoint.
How many transmission lines connect to TAP205458 substation?
3 transmission lines terminate at or pass through TAP205458 in the HIFLD line data. The connected lines listed here run at 115 kV. Together the listed lines cover about 4.3 miles.
Who owns TAP205458 substation?
HIFLD does not publish substation owners directly. Most of the transmission lines that end at TAP205458 belong to PACIFICORP. GridCensus derives this from the line data, so confirm ownership with the utility for anything contractual.
Where is TAP205458 substation located?
TAP205458 is in Oregon at 42.9469, -123.3750. The datacenter candidate sites closest to it are in Douglas County, Josephine County.
Are there datacenter candidate sites near TAP205458 substation?
GridCensus lists at least 8 scored candidate sites within roughly 25 miles of TAP205458. The highest-scoring is DIXONVILLE 500KV at 65/100. 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, “TAP205458 substation, Oregon”, https://gridcensus.com/substations/oregon/tap205458-aa7ed726 (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 TAP205458 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.