TWIN FALLS
SubstationIdaho · IDAHO POWER CO
TWIN FALLS is an electric transmission substation in Idaho, operated by IDAHO POWER CO. It is classified as sub-transmission (138 kv) and connects 5 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 |
|---|---|---|---|---|
| #70302 | 138 kV | IDAHO POWER CO | — | 10.1 mi |
| #70306 | 138 kV | IDAHO POWER CO | — | 1.6 mi |
| #73357 | 138 kV | IDAHO POWER CO | — | 0.0 mi |
| #75009 | 138 kV | IDAHO POWER CO | — | 1.9 mi |
| #75007 | 115 kV | IDAHO POWER CO | — | 1.6 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of TWIN FALLS, 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 |
|---|---|---|---|---|---|---|---|
| HUNT | Substation-Adjacent | ID | Jerome County | 230 kV | 300 MW | 2.0 yrs | 70.3 |
| MIDPOINT (500KV) | Substation-Adjacent | ID | Jerome County | 500 kV | 1,000 MW | 1.7 yrs | 69.0 |
| TAP204826 | Substation-Adjacent | ID | Jerome County | 138 kV | 100 MW | 2.0 yrs | 65.8 |
| KIMBERLY | Substation-Adjacent | ID | Jerome County | 138 kV | 100 MW | 2.0 yrs | 65.6 |
| TAP204823 | Substation-Adjacent | ID | Jerome County | 138 kV | 100 MW | 2.0 yrs | 65.5 |
| TAP204846 | Substation-Adjacent | ID | Jerome County | 138 kV | 100 MW | 2.0 yrs | 65.4 |
| TWIN FALLS | Substation-Adjacent | ID | Jerome County | 138 kV | 100 MW | 2.0 yrs | 65.3 |
| SOUTH PARK | Substation-Adjacent | ID | Jerome County | 115 kV | 100 MW | 2.0 yrs | 65.3 |
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 TWIN FALLS substation, Idaho. 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.