Substation-Adjacent Datacenter Sites in Washington
Washington has 1,343 substation-adjacent datacenter candidate sites. Parcels sited next to existing transmission substations. Co-location with a substation is the single strongest speed-to-power signal — interconnection distance is measured in feet, not miles.
1,343
Substation-Adjacent sites
68.2/100
Avg score (top 25)
Washington
State
Substation-Adjacent
Type
Top substation-adjacent sites in Washington
| Site | Type | County | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|---|
| COLUMBIA | Substation-Adjacent | Grant County | 500 kV | 1,000 MW | 6.9 yrs | 70.3 |
| MAPLE VALLEY | Substation-Adjacent | King County | 500 kV | 1,000 MW | 6.9 yrs | 69.7 |
| SNO-KING | Substation-Adjacent | Kitsap County | 500 kV | 1,000 MW | 6.9 yrs | 69.5 |
| COVINGTON | Substation-Adjacent | King County | 500 kV | 1,000 MW | 6.9 yrs | 69.4 |
| TAP200917 | Substation-Adjacent | Snohomish County | 500 kV | 1,000 MW | 6.9 yrs | 69.3 |
| BELL | Substation-Adjacent | Spokane County | 500 kV | 1,000 MW | 6.9 yrs | 69.3 |
| MONROE | Substation-Adjacent | Snohomish County | 500 kV | 1,000 MW | 6.9 yrs | 69.1 |
| SACAJAWEA | Substation-Adjacent | Walla Walla County | 500 kV | 1,000 MW | 6.9 yrs | 68.7 |
| ECHO LAKE | Substation-Adjacent | King County | 500 kV | 1,000 MW | 6.9 yrs | 68.6 |
| UNKNOWN201455 | Substation-Adjacent | Thurston County | 500 kV | 1,000 MW | 6.9 yrs | 68.6 |
| SICKLER | Substation-Adjacent | Chelan County | 500 kV | 1,000 MW | 6.9 yrs | 68.5 |
| CUSTER | Substation-Adjacent | San Juan County | 500 kV | 1,000 MW | 6.9 yrs | 68.2 |
| UNKNOWN206104 | Substation-Adjacent | Grant County | 230 kV | 300 MW | 6.9 yrs | 67.9 |
| RAVER | Substation-Adjacent | King County | 500 kV | 1,000 MW | 6.9 yrs | 67.8 |
| UNKNOWN209155 | Substation-Adjacent | Grant County | 230 kV | 300 MW | 6.9 yrs | 67.7 |
| SNOHOMISH | Substation-Adjacent | Snohomish County | 345 kV | 600 MW | 6.9 yrs | 67.7 |
| LARSON | Substation-Adjacent | Grant County | 230 kV | 300 MW | 6.9 yrs | 67.6 |
| TAP206230 | Substation-Adjacent | King County | 500 kV | 1,000 MW | 6.9 yrs | 67.5 |
| TAP206102 | Substation-Adjacent | Grant County | 230 kV | 300 MW | 6.9 yrs | 67.5 |
| COLUMBIA GENERATING STATION | Substation-Adjacent | Benton County | 500 kV | 1,000 MW | 6.9 yrs | 67.4 |
| TAP206103 | Substation-Adjacent | Grant County | 230 kV | 300 MW | 6.9 yrs | 67.4 |
| TAP203128 | Substation-Adjacent | Walla Walla County | 500 kV | 1,000 MW | 6.9 yrs | 67.2 |
| VANTAGE | Substation-Adjacent | Grant County | 500 kV | 1,000 MW | 6.9 yrs | 66.8 |
| OBRIEN | Substation-Adjacent | King County | 230 kV | 300 MW | 6.9 yrs | 66.5 |
| TAP206107 | Substation-Adjacent | Grant County | 230 kV | 300 MW | 6.9 yrs | 66.5 |
- How many substation-adjacent datacenter sites are in Washington?
- GridCensus catalogs 1,343 substation-adjacent datacenter candidate sites in Washington.
- What is a substation-adjacent datacenter site?
- Parcels sited next to existing transmission substations. Co-location with a substation is the single strongest speed-to-power signal — interconnection distance is measured in feet, not miles.
Dataset updated . Screening estimates derived from public data sources.
Go deeper than the public screen
This page shows a public slice of the GridCensus dataset for Substation-Adjacent sites in Washington. Pro and Enterprise plans unlock the full 147,272-site catalog, raw sub-scores, parcel ownership, interconnection-queue detail, saved searches, and programmatic API access.