TAP207177
SubstationOregon · PORTLAND GENERAL ELECTRIC CO
At a glance
TAP207177 is an electric transmission substation in Oregon, on PORTLAND GENERAL ELECTRIC CO's transmission network. It is classified as distribution (69–115 kv) and connects 1 transmission line. 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 |
|---|---|---|---|---|
| #208241 | 69 kV | PORTLAND GENERAL ELECTRIC CO | — | 0.7 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of TAP207177, 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 |
|---|---|---|---|---|---|---|---|
| DEAD HEAD | Substation-Adjacent | OR | Multnomah County | 230 kV | 300 MW | 3.5 yrs | 63.4 |
| NORTH BONNEVILLE | Substation-Adjacent | WA | Hood River County | 230 kV | 300 MW | 3.5 yrs | 62.1 |
| DEAD HEAD | Substation-Adjacent | OR | Hood River County | 230 kV | 300 MW | 3.5 yrs | 61.4 |
| CAPE HORN | Substation-Adjacent | WA | Multnomah County | 115 kV | 100 MW | 3.5 yrs | 59.9 |
| TAP206499 | Substation-Adjacent | OR | Multnomah County | 115 kV | 100 MW | 3.5 yrs | 59.8 |
| DUNN'S CORNER | Substation-Adjacent | OR | Multnomah County | 115 kV | 100 MW | 3.5 yrs | 59.8 |
| TAP208774 | Substation-Adjacent | OR | Multnomah County | 115 kV | 100 MW | 3.5 yrs | 59.4 |
| TAP206498 | Substation-Adjacent | OR | Multnomah County | 115 kV | 100 MW | 3.5 yrs | 59.3 |
Who owns the transmission lines at TAP207177?
The 1 connected line listed above is owned by PORTLAND GENERAL ELECTRIC CO. Line voltages range from 69 kV to 69 kV. Their combined recorded length is about 0.7 miles.
How do candidate sites near TAP207177 score?
The 8 highest-scoring candidate sites within about 25 miles range from 59 to 63 on the 0–100 DC Readiness scale. They fall in Multnomah County, Hood River 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 TAP207177 substation?
TAP207177 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 TAP207177 is below the national midpoint.
How many transmission lines connect to TAP207177 substation?
1 transmission line terminate at or pass through TAP207177 in the HIFLD line data. The connected lines listed here run at 69 kV. Together the listed lines cover about 0.7 miles.
Who owns TAP207177 substation?
HIFLD does not publish substation owners directly. Most of the transmission lines that end at TAP207177 belong to PORTLAND GENERAL ELECTRIC CO. GridCensus derives this from the line data, so confirm ownership with the utility for anything contractual.
Where is TAP207177 substation located?
TAP207177 is in Oregon at 45.3318, -121.9133. The datacenter candidate sites closest to it are in Multnomah County, Hood River County.
Are there datacenter candidate sites near TAP207177 substation?
GridCensus lists at least 8 scored candidate sites within roughly 25 miles of TAP207177. The highest-scoring is DEAD HEAD at 63/100. 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, “TAP207177 substation, Oregon”, https://gridcensus.com/substations/oregon/tap207177-9ed8188c (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 TAP207177 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.