Electric Substations in Montana
464 catalogued substations in Montana, with the highest-voltage facilities listed first. Each substation profile shows voltage class, operator, connected transmission lines, and the datacenter candidate sites closest to it.
| Substation | Max voltage | Connected lines | Operator |
|---|---|---|---|
| TAFT | 500 kV | 4 | BONNEVILLE POWER ADMINISTRATION |
| BROADVIEW | 500 kV | 10 | BONNEVILLE POWER ADMINISTRATION |
| COLSTRIP | 500 kV | 12 | MID-YELLOWSTONE ELEC COOP INC |
| HOT SPRINGS | 500 kV | 8 | AVISTA CORP |
| GARRISON | 500 kV | 8 | BONNEVILLE POWER ADMINISTRATION |
| DWORSHAK | 500 kV | 1 | BONNEVILLE POWER ADMINISTRATION |
| TAP205587 | 275 kV | 2 | YELLOWSTONE VALLEY ELEC CO-OP INC. |
| COLUMBUS-RAPELJE AUTO | 230 kV | 2 | NORTHWESTERN ENERGY LLC - (MT) |
| DECKER | 230 kV | 2 | BASIN ELECTRIC POWER COOP |
| VERONA | 230 kV | 2 | NORTHWESTERN ENERGY LLC - (MT) |
| CONKELLEY | 230 kV | 3 | BONNEVILLE POWER ADMINISTRATION |
| DIXON | 230 kV | 1 | MISSION VALLEY POWER |
| TAP203658 | 230 kV | 1 | NORTHWESTERN ENERGY LLC - (MT) |
| BILLINGS | 230 kV | 11 | NORTHWESTERN ENERGY LLC - (MT) |
| CUSTER | 230 kV | 2 | WAPA-- WESTERN AREA POWER ADMINISTRATION |
| WILSALL | 230 kV | 2 | NORTHWESTERN ENERGY LLC - (MT) |
| SHOREY ROAD | 230 kV | 3 | NORTHWESTERN ENERGY LLC - (MT) |
| JUDITH GAP | 230 kV | 2 | NORTHWESTERN ENERGY LLC - (MT) |
| THREE RIVERS | 230 kV | 8 | NORTHWESTERN ENERGY LLC - (MT) |
| GREAT FALLS (RAINBOW) | 230 kV | 12 | ENBRIDGE TRANS CANADA |
| COLUMBIA FALLS | 230 kV | 7 | BONNEVILLE POWER ADMINISTRATION |
| FLATHEAD | 230 kV | 2 | BONNEVILLE POWER ADMINISTRATION |
| DAWSON COUNTY | 230 kV | 7 | WAPA-- WESTERN AREA POWER ADMINISTRATION |
| HUNGRY HORSE | 230 kV | 4 | BONNEVILLE POWER ADMINISTRATION |
| PLACID LAKE | 230 kV | 3 | MISSOULA ELECTRIC COOP, INC |
| CABINET GORGE | 230 kV | 1 | AVISTA CORP |
| DUTTON PUMP | 230 kV | 1 | NORTHWESTERN ENERGY LLC - (MT) |
| SHELBY | 230 kV | 6 | GLACIER ELECTRIC COOP, INC |
| TAP203507 | 230 kV | 3 | BONNEVILLE POWER ADMINISTRATION |
| RATTLESNAKE | 230 kV | 8 | BONNEVILLE POWER ADMINISTRATION |
| HASKILL | 230 kV | 2 | BONNEVILLE POWER ADMINISTRATION |
| MILL CREEK GENERATING STATION | 230 kV | 10 | NORTHWESTERN ENERGY LLC - (MT) |
| NOXON | 230 kV | 9 | AVISTA CORP |
| LANCASTER | 230 kV | 1 | BONNEVILLE POWER ADMINISTRATION |
| LIBBY | 230 kV | 6 | BONNEVILLE POWER ADMINISTRATION |
| SPAR CANYON | 230 kV | 2 | BONNEVILLE POWER ADMINISTRATION |
| ROUND VALLEY | 230 kV | 3 | BONNEVILLE POWER ADMINISTRATION |
| TAP203506 | 230 kV | 3 | BONNEVILLE POWER ADMINISTRATION |
| ANACONDA | 230 kV | 3 | BONNEVILLE POWER ADMINISTRATION |
| OVANDO | 230 kV | 3 | NORTHWESTERN ENERGY LLC - (MT) |
| BAKER | 230 kV | 2 | WAPA-- WESTERN AREA POWER ADMINISTRATION |
| LANDERS FORK | 230 kV | 2 | NORTHWESTERN ENERGY LLC - (MT) |
| FORT PECK | 230 kV | 5 | WAPA-- WESTERN AREA POWER ADMINISTRATION |
| WOLF POINT | 230 kV | 6 | NORTHWESTERN ENERGY LLC - (MT) |
| MILES CITY | 230 kV | 5 | MONTANA-DAKOTA UTILITIES CO |
| ROSEBUD CREEK | 230 kV | 3 | MID-YELLOWSTONE ELEC COOP INC |
| TAP205535 | 230 kV | 1 | WAPA-- WESTERN AREA POWER ADMINISTRATION |
| RICHARDSON COULEE | 230 kV | 2 | WAPA-- WESTERN AREA POWER ADMINISTRATION |
| MALTA | 230 kV | 2 | WAPA-- WESTERN AREA POWER ADMINISTRATION |
| HARLEM | 230 kV | 2 | WAPA-- WESTERN AREA POWER ADMINISTRATION |
| HAVRE / ASSINNIBOINE | 230 kV | 4 | NORTHWESTERN ENERGY LLC - (MT) |
| HARDEN | 230 kV | 4 | NORTHWESTERN ENERGY LLC - (MT) |
| LION MOUNTAIN | 230 kV | 2 | BONNEVILLE POWER ADMINISTRATION |
| TAP204491 | 230 kV | 3 | AVISTA CORP |
| AMPS | 230 kV | 1 | NORTHWESTERN ENERGY LLC - (MT) |
| CONRAD | 230 kV | 3 | NORTHWESTERN ENERGY LLC - (MT) |
| CROSSOVER | 230 kV | 4 | NORTHWESTERN ENERGY LLC - (MT) |
| ALKALI CREEK | 230 kV | 6 | NORTHWESTERN ENERGY LLC - (MT) |
| JUDITH GAP WIND FARM | 230 kV | 3 | NORTHWESTERN ENERGY LLC - (MT) |
| RHAME | 230 kV | 1 | WAPA-- WESTERN AREA POWER ADMINISTRATION |
See datacenter candidate sites in Montana →
Dataset updated . Screening estimates derived from public data sources.
Go deeper than the public screen
This page shows a public slice of the GridCensus dataset for substations in 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.