STEENSEN SS 109
SubstationOregon
At a glance
STEENSEN SS 109 is an electric transmission substation in Oregon. 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 & operation
Operator not catalogued for this substation.
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of STEENSEN SS 109, 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 |
|---|---|---|---|---|---|---|---|
| TOLEDO | Substation-Adjacent | OR | Lincoln County | 230 kV | 300 MW | 3.5 yrs | 58.7 |
| STEENSEN SS 109 | Substation-Adjacent | OR | Lincoln County | 115 kV | 100 MW | 3.5 yrs | 54.1 |
| DEPOE BAY | Substation-Adjacent | OR | Lincoln County | 115 kV | 100 MW | 3.5 yrs | 54.0 |
| NEWPORT SS 101 | Substation-Adjacent | OR | Lincoln County | 115 kV | 100 MW | 3.5 yrs | 54.0 |
| AGATE BEACH SS 108 | Substation-Adjacent | OR | Lincoln County | 115 kV | 100 MW | 3.5 yrs | 53.9 |
| UNKNOWN208751 | Substation-Adjacent | OR | Lincoln County | 115 kV | 100 MW | 3.5 yrs | 53.6 |
| DEVILS LAKE | Substation-Adjacent | OR | Lincoln County | 115 kV | 100 MW | 3.5 yrs | 53.3 |
| ALSEA | Substation-Adjacent | OR | Benton County | 69 kV | 50 MW | 3.5 yrs | 52.9 |
How does STEENSEN SS 109 compare with other substations in Oregon?
Oregon has 1,414 substation records in HIFLD, of which 554 carry a station name; the rest are unnamed tap points, risers and line ends. 351 named substations in the state are in STEENSEN SS 109's 115–229 kV band (63% of named stations). 110 sit in a higher band. 34 named substations in Oregon operate at 345 kV or above. The highest voltage recorded in the state is 1,000 kV, and the state median is 115 kV.
How do candidate sites near STEENSEN SS 109 score?
The 8 highest-scoring candidate sites within about 25 miles range from 53 to 59 on the 0–100 DC Readiness scale. They fall in Lincoln County, Benton 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 STEENSEN SS 109 substation?
STEENSEN SS 109 has a maximum voltage of 115 kV and a minimum of 69 kV. That places it in the 115–229 kV band. The median named US substation in this dataset is 115 kV, so STEENSEN SS 109 is at the national midpoint.
How many transmission lines connect to STEENSEN SS 109 substation?
3 transmission lines terminate at or pass through STEENSEN SS 109 in the HIFLD line data.
Where is STEENSEN SS 109 substation located?
STEENSEN SS 109 is in Oregon at 44.6384, -124.0195. The datacenter candidate sites closest to it are in Lincoln County, Benton County.
Are there datacenter candidate sites near STEENSEN SS 109 substation?
GridCensus lists at least 8 scored candidate sites within roughly 25 miles of STEENSEN SS 109. The highest-scoring is TOLEDO at 59/100. Across Oregon, the average DC Readiness score is 53.1.
Other 115 kV substations in Oregon
- FARADAY· 11 lines
- DIXONVILLE· 10 lines
- EUGENE· 8 lines
- PROSPECT CENTRAL· 8 lines
- CANAMAH· 7 lines
- KNOTT· 7 lines
- SELLWOOD· 7 lines
- SUNSET SUBSTATION· 7 lines
- All named substations in Oregon· 554 stations
- Datacenter candidate sites in Oregon· 2,430 sites
- Brownfield and retired plant sites in Oregon
- Substations by state
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, “STEENSEN SS 109 substation, Oregon”, https://gridcensus.com/substations/oregon/steensen-ss-109-58c59b21 (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 STEENSEN SS 109 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.