TAP209230
SubstationWashington · BIG BEND ELECTRIC COOP, INC
At a glance
TAP209230 is an electric transmission substation in Washington, on BIG BEND ELECTRIC COOP, INC's transmission network. It is classified as sub-transmission (115 kv) and connects 2 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 |
|---|---|---|---|---|
| #211352 | 115 kV | BIG BEND ELECTRIC COOP, INC | — | 9.1 mi |
| #211353 | 115 kV | BIG BEND ELECTRIC COOP, INC | — | 0.1 mi |
| #211354 | 115 kV | BIG BEND ELECTRIC COOP, INC | — | 3.0 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of TAP209230, 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 |
|---|---|---|---|---|---|---|---|
| COLUMBIA GENERATING STATION | Substation-Adjacent | WA | Benton County | 500 kV | 1,000 MW | 3.5 yrs | 66.2 |
| UNKNOWN206111 | Substation-Adjacent | WA | Grant County | 230 kV | 300 MW | 3.5 yrs | 65.2 |
| TAP206107 | Substation-Adjacent | WA | Grant County | 230 kV | 300 MW | 3.5 yrs | 65.2 |
| SAND DUNES | Substation-Adjacent | WA | Grant County | 230 kV | 300 MW | 3.5 yrs | 65.0 |
| TAP209172 | Substation-Adjacent | WA | Grant County | 115 kV | 100 MW | 3.5 yrs | 62.0 |
| WNP 1 | Substation-Adjacent | WA | Benton County | 230 kV | 300 MW | 3.5 yrs | 61.9 |
| CASCADE VALLEY | Substation-Adjacent | WA | Grant County | 115 kV | 100 MW | 3.5 yrs | 61.9 |
| NELSON | Substation-Adjacent | WA | Grant County | 138 kV | 100 MW | 3.5 yrs | 61.2 |
Who owns the transmission lines at TAP209230?
The 3 connected lines listed above are owned by BIG BEND ELECTRIC COOP, INC. Line voltages range from 115 kV to 115 kV. Their combined recorded length is about 12.2 miles.
How do candidate sites near TAP209230 score?
The 8 highest-scoring candidate sites within about 25 miles range from 61 to 66 on the 0–100 DC Readiness scale. They fall in Benton County, Grant County. The Washington average across 6,019 scored sites is 51.7. 1,343 of those Washington sites are classed as substation sites (candidate locations generated at an existing substation).
Frequently asked questions
What voltage is TAP209230 substation?
TAP209230 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 TAP209230 is at the national midpoint.
How many transmission lines connect to TAP209230 substation?
2 transmission lines terminate at or pass through TAP209230 in the HIFLD line data. The connected lines listed here run at 115 kV. Together the listed lines cover about 12.2 miles.
Who owns TAP209230 substation?
HIFLD does not publish substation owners directly. Most of the transmission lines that end at TAP209230 belong to BIG BEND ELECTRIC COOP, INC. GridCensus derives this from the line data, so confirm ownership with the utility for anything contractual.
Where is TAP209230 substation located?
TAP209230 is in Washington at 46.7658, -118.9630. The datacenter candidate sites closest to it are in Benton County, Grant County.
Are there datacenter candidate sites near TAP209230 substation?
GridCensus lists at least 8 scored candidate sites within roughly 25 miles of TAP209230. The highest-scoring is COLUMBIA GENERATING STATION at 66/100. Across Washington, the average DC Readiness score is 51.7.
More in Washington
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, “TAP209230 substation, Washington”, https://gridcensus.com/substations/washington/tap209230-915a0ba4 (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 TAP209230 substation, Washington 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.