FOUR CORNERS
SubstationNew Mexico · NAVAJO TRIBAL UTILITY AUTHORITY
FOUR CORNERS is an electric transmission substation in New Mexico, operated by NAVAJO TRIBAL UTILITY AUTHORITY. It is classified as extra-high-voltage (500 kv) and connects 9 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 |
|---|---|---|---|---|
| #89486 | 500 kV | NAVAJO TRIBAL UTILITY AUTHORITY | IN SERVICE | 179.6 mi |
| #92166 | 500 kV | NAVAJO TRIBAL UTILITY AUTHORITY | IN SERVICE | 0.3 mi |
| #84682 | 345 kV | — | IN SERVICE | 101.2 mi |
| #85861 | 345 kV | — | IN SERVICE | 8.2 mi |
| #87103 | 345 kV | — | IN SERVICE | 156.2 mi |
| #92070 | 345 kV | — | IN SERVICE | 158.3 mi |
| #82647 | 345 kV | — | IN SERVICE | 10.4 mi |
| #83763 | 345 kV | — | IN SERVICE | 157.7 mi |
| #86695 | 230 kV | NAVAJO TRIBAL UTILITY AUTHORITY | IN SERVICE | 21.4 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of FOUR CORNERS, 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 |
|---|---|---|---|---|---|---|---|
| FOUR CORNERS | Substation-Adjacent | NM | San Juan County | 500 kV | 1,000 MW | 3.5 yrs | 67.9 |
| SAN JUAN | Substation-Adjacent | NM | San Juan County | 500 kV | 1,000 MW | 3.5 yrs | 63.1 |
| WATERFLOW | Substation-Adjacent | NM | San Juan County | 345 kV | 600 MW | 3.5 yrs | 61.1 |
| SHIPROCK | Substation-Adjacent | NM | San Juan County | 345 kV | 600 MW | 3.5 yrs | 60.4 |
| Greenfield (PINTO - FOUR CORNERS) | Greenfield | CO | Montezuma County | 345 kV | 600 MW | 3.5 yrs | 60.2 |
| Greenfield (PINTO - FOUR CORNERS) | Greenfield | CO | Montezuma County | 345 kV | 600 MW | 3.5 yrs | 59.6 |
| UNKNOWN301857 | Substation-Adjacent | CO | Montezuma County | 115 kV | 100 MW | 3.5 yrs | 59.4 |
| GALLEGOS | Substation-Adjacent | NM | San Juan County | 230 kV | 300 MW | 3.5 yrs | 58.8 |
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 FOUR CORNERS substation, New Mexico. 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.