HORSE FLAT
Substation-AdjacentWashington County, Idaho · WECC
HORSE FLAT is a substation-adjacent datacenter candidate site in Washington County, Idaho, interconnecting through WECC. It screens at 53.3/100 DC Readiness with a catalogued 300 MW of candidate capacity and a 6.9 yrs average interconnection-queue wait.
Power & interconnection
Connectivity
Site characteristics
Risk & environment
Location context
Incentive detail: Personal property tax exemption on computer equipment.
Site location
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 Washington County, ranked by DC Readiness.
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| EC FFE Washington County | Greenfield | — | — | 2.0 yrs | 56.0 |
| TAP204965 | Substation-Adjacent | 138 kV | 100 MW | 6.9 yrs | 50.1 |
| WEISER | Substation-Adjacent | 138 kV | 100 MW | 6.9 yrs | 50.1 |
| HUNTINGTON | Substation-Adjacent | 138 kV | 100 MW | 6.9 yrs | 49.3 |
| TAP207700 | Substation-Adjacent | 138 kV | 100 MW | 6.9 yrs | 49.3 |
| UNKNOWN202612 | Substation-Adjacent | 138 kV | 100 MW | 6.9 yrs | 49.3 |
| TAP207370 | Substation-Adjacent | 115 kV | 100 MW | 6.9 yrs | 48.9 |
| Mine Site | Former Mine | — | — | 6.9 yrs | 48.5 |
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.
Go deeper than the public screen
This page shows a public slice of the GridCensus dataset for HORSE FLAT, Washington County. Pro and Enterprise plans unlock the full 164,098-site catalog, raw sub-scores, parcel ownership, interconnection-queue detail, saved searches, and programmatic API access.