GLENHAM
SubstationNorth Dakota
GLENHAM is an electric transmission substation in North Dakota. It is classified as high-voltage (230 kv) and connects 1 transmission line. Substation proximity is one of the strongest speed-to-power signals for siting a datacenter — interconnection distance to an energized, high-voltage bus is often the binding constraint on time-to-energization.
Voltage & classification
Ownership & operation
Operator not catalogued for this substation.
Connected transmission lines
Lines terminating at or passing through this substation, by HIFLD line ID, highest voltage first.
| Line ID | Voltage | Owner | Status | Length |
|---|---|---|---|---|
| #18153 | 230 kV | — | IN SERVICE | 95.0 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of GLENHAM, ranked by DC Readiness. Sites this close to an energized substation carry a strong speed-to-power advantage.
| Site | Type | State | County | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|---|---|
| GLENHAM | Substation-Adjacent | SD | Walworth County | 230 kV | 300 MW | 1.4 yrs | 73.7 |
| Greenfield (FORT THOMPSON - LELAND OLDS) | Greenfield | SD | Walworth County | 345 kV | 600 MW | 1.4 yrs | 67.7 |
| Greenfield (FORT THOMPSON - LELAND OLDS) | Greenfield | SD | Walworth County | 345 kV | 600 MW | 1.4 yrs | 67.5 |
| Greenfield (FORT THOMPSON - LELAND OLDS) | Greenfield | SD | Walworth County | 345 kV | 600 MW | 1.4 yrs | 67.5 |
| Greenfield (ANTELOPE VALLEY STATION - BROA) | Greenfield | SD | Campbell County | 345 kV | 600 MW | 1.4 yrs | 67.4 |
| Greenfield (FORT THOMPSON - LELAND OLDS) | Greenfield | SD | Campbell County | 345 kV | 600 MW | 1.4 yrs | 66.8 |
| Greenfield (ANTELOPE VALLEY STATION - BROA) | Greenfield | SD | Campbell County | 345 kV | 600 MW | 1.4 yrs | 66.7 |
| Greenfield (BISMARCK - GLENHAM) | Greenfield | SD | Campbell County | 230 kV | 300 MW | 1.4 yrs | 66.0 |
Dataset updated . Screening estimates derived from public data sources.
Substation attributes are derived from public HIFLD / EIA infrastructure data and may lag real-world upgrades or retirements. Voltage and connected-line counts are screening figures — confirm available capacity and interconnection terms directly with the operating utility and ISO.
Go deeper than the public screen
This page shows a public slice of the GridCensus dataset for GLENHAM substation, North 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.