BIG SANDY
SubstationColorado · TRI-STATE G & T ASSN, INC
BIG SANDY is an electric transmission substation in Colorado, operated by TRI-STATE G & T ASSN, INC. It is classified as high-voltage (230 kv) and connects 4 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
Ownership & operation
Connected transmission lines
Lines terminating at or passing through this substation, by HIFLD line ID, highest voltage first.
| Line ID | Voltage | Owner | Status | Length |
|---|---|---|---|---|
| #68936 | 230 kV | TRI-STATE G & T ASSN, INC | — | 75.3 mi |
| #68938 | 230 kV | TRI-STATE G & T ASSN, INC | — | 8.6 mi |
| #68759 | 115 kV | WAPA-- WESTERN AREA POWER ADMINISTRATION | — | 30.4 mi |
| #68939 | 115 kV | WAPA-- WESTERN AREA POWER ADMINISTRATION | — | 4.0 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of BIG SANDY, 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 |
|---|---|---|---|---|---|---|---|
| BIG SANDY | Substation-Adjacent | CO | Lincoln County | 230 kV | 300 MW | 1.7 yrs | 68.5 |
| LINCOLN | Substation-Adjacent | CO | Lincoln County | 230 kV | 300 MW | 1.7 yrs | 66.8 |
| MISSLE SITE | Substation-Adjacent | CO | Arapahoe County | 345 kV | 600 MW | 1.7 yrs | 66.2 |
| LIMON WIND #1 | Substation-Adjacent | CO | Elbert County | 345 kV | 600 MW | 1.7 yrs | 64.6 |
| LIMON WIND #2 | Substation-Adjacent | CO | Lincoln County | 345 kV | 600 MW | 1.7 yrs | 62.7 |
| CEDAR POINT WIND | Substation-Adjacent | CO | Elbert County | 230 kV | 300 MW | 1.7 yrs | 62.7 |
| UNKNOWN203962 | Substation-Adjacent | CO | Lincoln County | 115 kV | 100 MW | 1.7 yrs | 62.5 |
| Greenfield (MIDWAY - LINCOLN) | Greenfield | CO | Lincoln County | 230 kV | 300 MW | 1.7 yrs | 62.4 |
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 BIG SANDY 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.