SONOITA
SubstationArizona · UNS ELECTRIC INCORPORATED
SONOITA is an electric transmission substation in Arizona, operated by UNS ELECTRIC INCORPORATED. 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 |
|---|---|---|---|---|
| #85176 | 115 kV | UNS ELECTRIC INCORPORATED | IN SERVICE | 8.3 mi |
| #85289 | 115 kV | UNS ELECTRIC INCORPORATED | IN SERVICE | 3.3 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of SONOITA, 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 |
|---|---|---|---|---|---|---|---|
| SONOITA | Substation-Adjacent | AZ | Santa Cruz County | 115 kV | 100 MW | 5.7 yrs | 62.1 |
| GREEN VALLEY | Substation-Adjacent | AZ | Santa Cruz County | 138 kV | 100 MW | 5.7 yrs | 60.8 |
| VALENCIA | Substation-Adjacent | AZ | Santa Cruz County | 115 kV | 100 MW | 5.7 yrs | 58.6 |
| CANEZ | Substation-Adjacent | AZ | Santa Cruz County | 115 kV | 100 MW | 5.7 yrs | 56.9 |
| CANOA RANCH | Substation-Adjacent | AZ | Santa Cruz County | 138 kV | 100 MW | 5.7 yrs | 56.7 |
| KANTOR | Substation-Adjacent | AZ | Santa Cruz County | 115 kV | 100 MW | 5.7 yrs | 56.3 |
| OZ Santa Cruz | Greenfield | AZ | Santa Cruz | — | — | 5.7 yrs | 54.3 |
| Greenfield (SONOITA - VALENCIA) | Greenfield | AZ | Santa Cruz County | 115 kV | 100 MW | 5.7 yrs | 53.9 |
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 SONOITA 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.