COLUMBIA BASIN PROJECT
Federal ExcessGrant County, Washington · WECC
COLUMBIA BASIN PROJECT is a federal excess datacenter candidate site in Grant County, Washington, interconnecting through WECC. It screens at 55.9/100 DC Readiness and a 6.9 yrs average interconnection-queue wait.
Power & interconnection
Speed to power
Deep queue and long historical waits — plan for a multi-year interconnection timeline and engage the utility early.
Connectivity
Site characteristics
Risk & environment
Location context
Regulatory climate
No notable statewide DC restriction on record; confirm local zoning and utility tariffs.
Incentive detail: Sales tax exemption on DC equipment and construction for eligible facilities; no state income tax.
Site location
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Full DC Readiness breakdown
All 13 weighted sub-scores (0–100) behind the composite DC Readiness score.
Nearby comparable sites
Other scored datacenter candidate sites in Grant County, ranked by DC Readiness.
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| COLUMBIA | Substation-Adjacent | 500 kV | 1,000 MW | 6.9 yrs | 69.5 |
| Wanapum | Brownfield | 500 kV | 1,038 MW | 6.9 yrs | 68.3 |
| UNKNOWN206104 | Substation-Adjacent | 230 kV | 300 MW | 6.9 yrs | 67.1 |
| UNKNOWN209155 | Substation-Adjacent | 230 kV | 300 MW | 6.9 yrs | 67.0 |
| LARSON | Substation-Adjacent | 230 kV | 300 MW | 6.9 yrs | 66.8 |
| TAP206102 | Substation-Adjacent | 230 kV | 300 MW | 6.9 yrs | 66.7 |
| TAP206103 | Substation-Adjacent | 230 kV | 300 MW | 6.9 yrs | 66.6 |
| VANTAGE | Substation-Adjacent | 500 kV | 1,000 MW | 6.9 yrs | 66.0 |
Dataset updated . Screening estimates derived from public data sources.
Figures are screening estimates derived from public infrastructure data. Catalogued capacity reflects theoretical candidate capacity, not deliverable or committed interconnection. Confirm all values with the utility, ISO, and on-the-ground due diligence.
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