FRANNIE
SubstationWyoming · PACIFICORP
FRANNIE is an electric transmission substation in Wyoming, operated by PACIFICORP. It is classified as high-voltage (230 kv) and connects 2 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
Connected transmission lines
Lines terminating at or passing through this substation, by HIFLD line ID, highest voltage first.
| Line ID | Voltage | Owner | Status | Length |
|---|---|---|---|---|
| #68602 | 230 kV | PACIFICORP | — | 13.0 mi |
| #68603 | 230 kV | PACIFICORP | — | 55.3 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of FRANNIE, 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 |
|---|---|---|---|---|---|---|---|
| UNKNOWN203003 | Substation-Adjacent | WY | Big Horn County | 230 kV | 300 MW | 1.7 yrs | 68.7 |
| TAP206575 | Substation-Adjacent | MT | Carbon County | 115 kV | 100 MW | 1.1 yrs | 68.3 |
| UNKNOWN206177 | Substation-Adjacent | MT | Carbon County | 115 kV | 100 MW | 1.1 yrs | 68.1 |
| FRANNIE | Substation-Adjacent | MT | Carbon County | 230 kV | 300 MW | 1.7 yrs | 66.3 |
| UNKNOWN203115 | Substation-Adjacent | MT | Carbon County | 138 kV | 100 MW | 1.7 yrs | 63.7 |
| UNKNOWN203118 | Substation-Adjacent | MT | Carbon County | 115 kV | 100 MW | 1.7 yrs | 62.3 |
| Greenfield (FRANNIE - UNKNOWN202457) | Greenfield | MT | Carbon County | 230 kV | 300 MW | 1.7 yrs | 62.0 |
| Greenfield (GARLAND - FRANNIE) | Greenfield | MT | Carbon County | 230 kV | 300 MW | 1.7 yrs | 61.9 |
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 FRANNIE substation, Wyoming. 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.