RIO HONDO
SubstationTexas · AEP TEXAS
RIO HONDO is an electric transmission substation in Texas, operated by AEP TEXAS. It is classified as high-voltage (345 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 |
|---|---|---|---|---|
| #83468 | 345 kV | AEP TEXAS CENTRAL COMPANY | — | 38.4 mi |
| #87518 | 345 kV | AEP TEXAS CENTRAL COMPANY | — | 68.2 mi |
| #92384 | 345 kV | BROWNSVILLE PUBLIC UTILITIES BOARD | IN SERVICE | 9.9 mi |
| #87206 | 138 kV | BROWNSVILLE PUBLIC UTILITIES BOARD | IN SERVICE | 10.2 mi |
| #89986 | 138 kV | AEP TEXAS CENTRAL COMPANY | IN SERVICE | 20.5 mi |
| #91950 | 138 kV | ONCOR ELECTRIC DELIVERY COMPANY LLC | IN SERVICE | 20.8 mi |
| #84987 | 138 kV | AEP TEXAS | IN SERVICE | 12.1 mi |
| #92953 | 115 kV | PUBLIC SERVICE COMPANY OF NEW MEXICO | IN SERVICE | 3.7 mi |
| #86982 | 115 kV | PUBLIC SERVICE COMPANY OF NEW MEXICO | IN SERVICE | 3.7 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of RIO HONDO, 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 |
|---|---|---|---|---|---|---|---|
| RIO HONDO | Substation-Adjacent | TX | Dimmit County | 345 kV | 600 MW | 3.4 yrs | 62.6 |
| UNKNOWN306262 | Substation-Adjacent | TX | La Salle County | 138 kV | 100 MW | 3.4 yrs | 62.0 |
| UNKNOWN307144 | Substation-Adjacent | TX | La Salle County | 138 kV | 100 MW | 3.4 yrs | 58.5 |
| UNKNOWN308672 | Substation-Adjacent | TX | Dimmit County | 138 kV | 100 MW | 3.4 yrs | 58.4 |
| Greenfield (UNKNOWN306050 - UNKNOWN306262) | Greenfield | TX | Webb County | 138 kV | 100 MW | 3.4 yrs | 58.0 |
| Greenfield (UNKNOWN307310 - UNKNOWN304905) | Greenfield | TX | Webb County | 138 kV | 100 MW | 3.4 yrs | 57.1 |
| Greenfield (UNKNOWN306050 - UNKNOWN306262) | Greenfield | TX | Webb County | 138 kV | 100 MW | 3.4 yrs | 57.1 |
| UNKNOWN307310 | Substation-Adjacent | TX | Dimmit County | 138 kV | 100 MW | 3.4 yrs | 56.8 |
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 RIO HONDO substation, Texas. 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.