TOSTON
SubstationMontana · VIGILANTE ELECTRIC COOP, INC
TOSTON is an electric transmission substation in Montana, operated by VIGILANTE ELECTRIC COOP, INC. It is classified as sub-transmission (138 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
Connected transmission lines
Lines terminating at or passing through this substation, by HIFLD line ID, highest voltage first.
| Line ID | Voltage | Owner | Status | Length |
|---|---|---|---|---|
| #74599 | 138 kV | VIGILANTE ELECTRIC COOP, INC | — | 11.9 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of TOSTON, 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 |
|---|---|---|---|---|---|---|---|
| Greenfield (BROADVIEW - GARRISON) | Greenfield | MT | Broadwater County | 500 kV | 1,000 MW | 1.1 yrs | 70.5 |
| UNKNOWN205608 | Substation-Adjacent | MT | Jefferson County | 115 kV | 100 MW | 1.1 yrs | 70.4 |
| Greenfield (BROADVIEW - GARRISON) | Greenfield | MT | Broadwater County | 500 kV | 1,000 MW | 1.1 yrs | 70.0 |
| Greenfield (BROADVIEW - GARRISON) | Greenfield | MT | Broadwater County | 500 kV | 1,000 MW | 1.1 yrs | 69.4 |
| Greenfield (THREE RIVERS - WILSALL) | Greenfield | MT | Broadwater County | 230 kV | 300 MW | 1.1 yrs | 69.3 |
| TOSTON | Substation-Adjacent | MT | Broadwater County | 138 kV | 100 MW | 1.1 yrs | 69.1 |
| THREE RIVERS | Substation-Adjacent | MT | Broadwater County | 230 kV | 300 MW | 1.1 yrs | 68.9 |
| Greenfield (BROADVIEW - GARRISON) | Greenfield | MT | Jefferson County | 500 kV | 1,000 MW | 1.1 yrs | 68.9 |
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 TOSTON 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.