SANDHIILLS
SubstationColorado · TRI-STATE G & T ASSN, INC
SANDHIILLS is an electric transmission substation in Colorado, operated by TRI-STATE G & T ASSN, INC. It is classified as sub-transmission (115 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 |
|---|---|---|---|---|
| #68746 | 115 kV | TRI-STATE G & T ASSN, INC | — | 9.4 mi |
| #68747 | 115 kV | TRI-STATE G & T ASSN, INC | — | 15.6 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of SANDHIILLS, 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 |
|---|---|---|---|---|---|---|---|
| WRAY | Substation-Adjacent | CO | Yuma County | 230 kV | 300 MW | 1.7 yrs | 67.1 |
| UNKNOWN119497 | Substation-Adjacent | KS | Cheyenne County | 115 kV | 100 MW | 3.5 yrs | 64.6 |
| UNKNOWN131952 | Substation-Adjacent | NE | Chase County | 115 kV | 100 MW | 3.5 yrs | 61.8 |
| UNKNOWN205863 | Substation-Adjacent | CO | Yuma County | 115 kV | 100 MW | 1.7 yrs | 61.2 |
| UNKNOWN205887 | Substation-Adjacent | NE | Chase County | 115 kV | 100 MW | 1.7 yrs | 61.1 |
| UNKNOWN206843 | Substation-Adjacent | NE | Chase County | 115 kV | 100 MW | 1.7 yrs | 60.9 |
| UNKNOWN205865 | Substation-Adjacent | CO | Yuma County | 115 kV | 100 MW | 1.7 yrs | 60.8 |
| ALVIN | Substation-Adjacent | NE | Chase County | 115 kV | 100 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 SANDHIILLS substation, Colorado. 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.