GRACE
SubstationIdaho · PACIFICORP
GRACE is an electric transmission substation in Idaho, operated by PACIFICORP. It is classified as high-voltage (230 kv) and connects 8 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 |
|---|---|---|---|---|
| #70203 | 230 kV | PACIFICORP | — | 13.2 mi |
| #70225 | 230 kV | PACIFICORP | — | 17.6 mi |
| #70228 | 230 kV | PACIFICORP | — | 19.0 mi |
| #70229 | 230 kV | PACIFICORP | — | 19.0 mi |
| #70230 | 138 kV | PACIFICORP | — | 19.0 mi |
| #70224 | 138 kV | PACIFICORP | — | 10.4 mi |
| #73488 | 138 kV | PACIFICORP | — | 0.0 mi |
| #70227 | 115 kV | PACIFICORP | — | 9.6 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of GRACE, 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 |
|---|---|---|---|---|---|---|---|
| POPULUS | Substation-Adjacent | ID | Bannock County | 345 kV | 600 MW | 1.7 yrs | 73.1 |
| 3 MILE KNOLL | Substation-Adjacent | ID | Caribou County | 345 kV | 600 MW | 2.0 yrs | 70.4 |
| TAP204771 | Substation-Adjacent | ID | Caribou County | 230 kV | 300 MW | 2.0 yrs | 69.1 |
| TAP205003 | Substation-Adjacent | ID | Bannock County | 115 kV | 100 MW | 2.0 yrs | 68.1 |
| GRACE | Substation-Adjacent | ID | Caribou County | 230 kV | 300 MW | 2.0 yrs | 68.1 |
| TAP204786 | Substation-Adjacent | ID | Bannock County | 138 kV | 100 MW | 2.0 yrs | 67.7 |
| UNKNOWN201292 | Substation-Adjacent | ID | Franklin County | 230 kV | 300 MW | 2.0 yrs | 67.2 |
| UNKNOWN205004 | Substation-Adjacent | ID | Bannock County | 115 kV | 100 MW | 2.0 yrs | 66.1 |
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 GRACE 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.