Highmore
BrownfieldHighmore, Hyde, South Dakota · NorthWestern Energy - (SD)
Highmore is a oil plant in Highmore, Hyde, South Dakota, retired 2014-06-01. Retired generation sites are among the most attractive datacenter redevelopment targets: the existing interconnection was sized for roughly 4 MW of generation, so the grid hookup, transmission rights, and often cooling-water access are already in place — collapsing the speed-to-power timeline versus a greenfield build.
Former use & capacity
Grid hookup & remediation
Nearby datacenter candidate sites
Scored candidate sites near Highmore, ranked by DC Readiness.
| Site | Type | State | County | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|---|---|
| Greenfield (FORT THOMPSON - LELAND OLDS) | Greenfield | SD | Hyde County | 345 kV | 600 MW | 1.4 yrs | 67.4 |
| Greenfield (FORT THOMPSON - LELAND OLDS) | Greenfield | SD | Hyde County | 345 kV | 600 MW | 1.4 yrs | 67.4 |
| UNKNOWN131929 | Substation-Adjacent | SD | Buffalo County | 345 kV | 600 MW | 1.0 yrs | 67.2 |
| Greenfield (FORT THOMPSON - LELAND OLDS) | Greenfield | SD | Potter County | 345 kV | 600 MW | 1.4 yrs | 66.2 |
| Greenfield (FORT THOMPSON - LELAND OLDS) | Greenfield | SD | Buffalo County | 345 kV | 600 MW | 1.4 yrs | 66.1 |
| Greenfield (FORT THOMPSON - LELAND OLDS) | Greenfield | SD | Hyde County | 345 kV | 600 MW | 1.4 yrs | 65.6 |
| Greenfield (FORT THOMPSON - LELAND OLDS) | Greenfield | SD | Hyde County | 345 kV | 600 MW | 1.4 yrs | 65.6 |
| Greenfield (FORT THOMPSON - LELAND OLDS) | Greenfield | SD | Hyde County | 345 kV | 600 MW | 1.4 yrs | 65.5 |
See all datacenter sites in South Dakota →
Dataset updated . Screening estimates derived from public data sources.
Brownfield attributes are derived from EIA retired-generator and EPA public data. Existing capacity reflects the retired plant's historical nameplate, not deliverable interconnection for a new load. Confirm reusable interconnection rights, remediation status, and site availability with the utility, ISO, and current owner.
Go deeper than the public screen
This page shows a public slice of the GridCensus dataset for Highmore, Highmore, Hyde, South Dakota. 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.