TAMARISK
SubstationUtah · PACIFICORP
TAMARISK is an electric transmission substation in Utah, operated by PACIFICORP. It is classified as sub-transmission (138 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 |
|---|---|---|---|---|
| #70810 | 138 kV | PACIFICORP | — | 40.8 mi |
| #71970 | 138 kV | PACIFICORP | — | 33.9 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of TAMARISK, 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 |
|---|---|---|---|---|---|---|---|
| TAMARISK | Substation-Adjacent | UT | Grand County | 138 kV | 100 MW | 1.7 yrs | 63.4 |
| CANYONLANDS | Substation-Adjacent | UT | Grand County | 115 kV | 100 MW | 1.7 yrs | 62.4 |
| Greenfield (HUNTINGTON - PINTO) | Greenfield | UT | Grand County | 345 kV | 600 MW | 1.7 yrs | 62.3 |
| Greenfield (HUNTINGTON - PINTO) | Greenfield | UT | Emery County | 345 kV | 600 MW | 1.7 yrs | 61.2 |
| Greenfield (HUNTINGTON - PINTO) | Greenfield | UT | Grand County | 345 kV | 600 MW | 1.7 yrs | 61.2 |
| TAP205455 | Substation-Adjacent | UT | Carbon County | 138 kV | 100 MW | 1.7 yrs | 61.0 |
| Greenfield (HUNTINGTON - PINTO) | Greenfield | UT | Grand County | 345 kV | 600 MW | 1.7 yrs | 60.9 |
| Greenfield (HUNTINGTON - PINTO) | Greenfield | UT | Grand County | 345 kV | 600 MW | 1.7 yrs | 60.8 |
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 TAMARISK substation, Utah. 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.