MIAMI
SubstationArizona
MIAMI is an electric transmission substation in Arizona. It is classified as sub-transmission (115 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
Operator not catalogued for this substation.
Connected transmission lines
Lines terminating at or passing through this substation, by HIFLD line ID, highest voltage first.
| Line ID | Voltage | Owner | Status | Length |
|---|---|---|---|---|
| #81850 | 115 kV | — | IN SERVICE | 8.1 mi |
| #90165 | 115 kV | — | IN SERVICE | 9.5 mi |
| #92447 | 115 kV | — | IN SERVICE | 3.0 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of MIAMI, 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 |
|---|---|---|---|---|---|---|---|
| Greenfield (BROWNING - SILVER KING) | Greenfield | AZ | Pinal County | 500 kV | 1,000 MW | 5.7 yrs | 63.4 |
| SILVER KING | Substation-Adjacent | AZ | Gila County | 500 kV | 1,000 MW | 5.7 yrs | 62.8 |
| Greenfield (PINAL CENTRAL - CHOLLA) | Greenfield | AZ | Pinal County | 500 kV | 1,000 MW | 5.7 yrs | 61.9 |
| Greenfield (SAGUARO - CHOLLA) | Greenfield | AZ | Pinal County | 500 kV | 1,000 MW | 5.7 yrs | 61.8 |
| Greenfield (SAGUARO - CHOLLA) | Greenfield | AZ | Pinal County | 500 kV | 1,000 MW | 5.7 yrs | 61.6 |
| Greenfield (SILVER KING - CORONADO) | Greenfield | AZ | Gila County | 500 kV | 1,000 MW | 5.7 yrs | 61.2 |
| Greenfield (PINAL CENTRAL - CHOLLA) | Greenfield | AZ | Pinal County | 500 kV | 1,000 MW | 5.7 yrs | 61.1 |
| HAYDEN | Substation-Adjacent | AZ | Pinal County | 115 kV | 100 MW | 5.7 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 MIAMI 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.