SHELBY
SubstationMontana · GLACIER ELECTRIC COOP, INC
SHELBY is an electric transmission substation in Montana, operated by GLACIER ELECTRIC COOP, INC. It is classified as high-voltage (230 kv) and connects 6 transmission lines. 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
Connected transmission lines
Lines terminating at or passing through this substation, by HIFLD line ID, highest voltage first.
| Line ID | Voltage | Owner | Status | Length |
|---|---|---|---|---|
| #68606 | 230 kV | WAPA-- WESTERN AREA POWER ADMINISTRATION | — | 29.9 mi |
| #69291 | 115 kV | WAPA-- WESTERN AREA POWER ADMINISTRATION | — | 36.4 mi |
| #69301 | 115 kV | WAPA-- WESTERN AREA POWER ADMINISTRATION | — | 2.7 mi |
| #69302 | 115 kV | WAPA-- WESTERN AREA POWER ADMINISTRATION | — | 0.1 mi |
| #69304 | 115 kV | GLACIER ELECTRIC COOP, INC | — | 2.7 mi |
| #69597 | 115 kV | MARIAS RIVER ELECTRIC COOP INC | — | 0.6 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of SHELBY, 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 |
|---|---|---|---|---|---|---|---|
| CONRAD | Substation-Adjacent | MT | Pondera County | 230 kV | 300 MW | 1.1 yrs | 73.4 |
| UNKNOWN201552 | Substation-Adjacent | MT | Pondera County | 230 kV | 300 MW | 1.1 yrs | 73.0 |
| UNKNOWN206280 | Substation-Adjacent | MT | Toole County | 230 kV | 300 MW | 1.1 yrs | 72.1 |
| SHELBY | Substation-Adjacent | MT | Toole County | 230 kV | 300 MW | 1.1 yrs | 71.4 |
| UNKNOWN206279 | Substation-Adjacent | MT | Toole County | 230 kV | 300 MW | 1.1 yrs | 69.8 |
| UNKNOWN204627 | Substation-Adjacent | MT | Pondera County | 115 kV | 100 MW | 1.1 yrs | 69.7 |
| UNKNOWN206281 | Substation-Adjacent | MT | Toole County | 230 kV | 300 MW | 1.1 yrs | 69.1 |
| UNKNOWN202342 | Substation-Adjacent | MT | Pondera County | 115 kV | 100 MW | 1.1 yrs | 68.3 |
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 SHELBY substation, Montana. 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.