LIBBY
SubstationMontana · BONNEVILLE POWER ADMINISTRATION
LIBBY is an electric transmission substation in Montana, operated by BONNEVILLE POWER ADMINISTRATION. 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 |
|---|---|---|---|---|
| #68266 | 230 kV | BONNEVILLE POWER ADMINISTRATION | — | 70.1 mi |
| #68267 | 230 kV | BONNEVILLE POWER ADMINISTRATION | — | 45.0 mi |
| #73459 | 230 kV | BONNEVILLE POWER ADMINISTRATION | — | 1.4 mi |
| #73460 | 230 kV | BONNEVILLE POWER ADMINISTRATION | — | 1.3 mi |
| #68264 | 115 kV | BONNEVILLE POWER ADMINISTRATION | — | 16.9 mi |
| #68265 | 115 kV | BONNEVILLE POWER ADMINISTRATION | — | 12.3 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of LIBBY, 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 |
|---|---|---|---|---|---|---|---|
| LIBBY | Substation-Adjacent | MT | Lincoln County | 230 kV | 300 MW | 1.1 yrs | 73.3 |
| Greenfield (NOXON - LIBBY) | Greenfield | MT | Sanders County | 230 kV | 300 MW | 1.1 yrs | 66.5 |
| Greenfield (NOXON - LIBBY) | Greenfield | MT | Sanders County | 230 kV | 300 MW | 1.1 yrs | 65.6 |
| Greenfield (NOXON - LIBBY) | Greenfield | MT | Lincoln County | 230 kV | 300 MW | 1.1 yrs | 65.1 |
| Greenfield (LIBBY - HASKILL) | Greenfield | MT | Sanders County | 230 kV | 300 MW | 1.1 yrs | 64.9 |
| Greenfield (NOXON - LIBBY) | Greenfield | MT | Sanders County | 230 kV | 300 MW | 1.1 yrs | 64.7 |
| OZ Lincoln | Greenfield | MT | Lincoln | — | — | 1.1 yrs | 64.1 |
| Greenfield (NOXON - LIBBY) | Greenfield | MT | Lincoln County | 230 kV | 300 MW | 1.1 yrs | 63.2 |
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 LIBBY 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.