CORONADO
SubstationArizona · NAVOPACHE ELECTRIC COOPERATIVE
CORONADO is an electric transmission substation in Arizona, operated by NAVOPACHE ELECTRIC COOPERATIVE. It is classified as extra-high-voltage (500 kv) and connects 3 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 |
|---|---|---|---|---|
| #91678 | 500 kV | — | IN SERVICE | 49.8 mi |
| #92676 | 500 kV | — | IN SERVICE | 180.5 mi |
| #89063 | 345 kV | NAVOPACHE ELECTRIC COOPERATIVE | IN SERVICE | 22.2 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of CORONADO, 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 |
|---|---|---|---|---|---|---|---|
| CORONADO | Substation-Adjacent | AZ | Apache County | 500 kV | 1,000 MW | 5.7 yrs | 65.3 |
| SPRINGERVILLE | Substation-Adjacent | NM | Catron County | 345 kV | 600 MW | 5.7 yrs | 61.0 |
| Greenfield (SUGARLOAF - CORONADO) | Greenfield | AZ | Apache County | 500 kV | 1,000 MW | 5.7 yrs | 57.6 |
| Greenfield (MCKINLEY - SPRINGERVILLE) | Greenfield | NM | Catron County | 345 kV | 600 MW | 3.5 yrs | 56.7 |
| Greenfield (MCKINLEY - SPRINGERVILLE) | Greenfield | NM | Catron County | 345 kV | 600 MW | 3.5 yrs | 56.7 |
| Greenfield (MCKINLEY - SPRINGERVILLE) | Greenfield | AZ | Apache County | 345 kV | 600 MW | 3.5 yrs | 56.7 |
| Greenfield (MCKINLEY - SPRINGERVILLE) | Greenfield | NM | Catron County | 345 kV | 600 MW | 3.5 yrs | 56.6 |
| Greenfield (SPRINGERVILLE - VAIL) | Greenfield | NM | Catron County | 345 kV | 600 MW | 3.5 yrs | 56.0 |
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 CORONADO substation, Arizona. 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.