GREAT FALLS (RAINBOW)
Substation-AdjacentCascade County, Montana · SPP
GREAT FALLS (RAINBOW) is a substation-adjacent datacenter candidate site in Cascade County, Montana, interconnecting through SPP. It screens at 58.5/100 DC Readiness with a catalogued 300 MW of candidate capacity and a 3.3 yrs average interconnection-queue wait.
Power & interconnection
Connectivity
Site characteristics
Risk & environment
Location context
Incentive detail: New/expanding industry tax abatement available for DC construction.
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 Cascade County, ranked by DC Readiness.
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| DUTTON PUMP | Substation-Adjacent | 230 kV | 300 MW | 3.3 yrs | 59.3 |
| UNKNOWN206325 | Substation-Adjacent | 230 kV | 300 MW | 3.3 yrs | 59.3 |
| GREAT FALLS (RAINBOW) | Substation-Adjacent | 230 kV | 300 MW | 3.3 yrs | 59.3 |
| UNKNOWN206326 | Substation-Adjacent | 230 kV | 300 MW | 3.3 yrs | 59.3 |
| TAP206227 | Substation-Adjacent | 138 kV | 100 MW | 3.3 yrs | 55.3 |
| UNKNOWN201836 | Substation-Adjacent | 115 kV | 100 MW | 3.3 yrs | 54.9 |
| UNKNOWN204498 | Substation-Adjacent | 115 kV | 100 MW | 3.3 yrs | 54.9 |
| UNKNOWN204148 | Substation-Adjacent | 115 kV | 100 MW | 3.3 yrs | 54.9 |
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 GREAT FALLS (RAINBOW), Cascade 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.