BIG FOOT
SubstationTexas · AEP TEXAS CENTRAL COMPANY
BIG FOOT is an electric transmission substation in Texas, operated by AEP TEXAS CENTRAL COMPANY. It is classified as high-voltage (345 kv) and connects 5 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 |
|---|---|---|---|---|
| #86444 | 345 kV | AEP TEXAS CENTRAL COMPANY | IN SERVICE | 6.1 mi |
| #92630 | 345 kV | AEP TEXAS CENTRAL COMPANY | IN SERVICE | 29.9 mi |
| #88861 | 138 kV | AEP TEXAS CENTRAL COMPANY | IN SERVICE | 14.8 mi |
| #89032 | 138 kV | AEP TEXAS CENTRAL COMPANY | IN SERVICE | 6.2 mi |
| #89718 | 138 kV | AEP TEXAS CENTRAL COMPANY | IN SERVICE | 14.8 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of BIG FOOT, 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 |
|---|---|---|---|---|---|---|---|
| CAGNON ROAD | Substation-Adjacent | TX | Bexar County | 345 kV | 600 MW | 3.4 yrs | 74.8 |
| LEON CREEK | Substation-Adjacent | TX | Bexar County | 345 kV | 600 MW | 3.4 yrs | 71.7 |
| Leon Creek | Brownfield | TX | Bexar | — | 189 MW | — | 71.4 |
| MERIDA STREET | Substation-Adjacent | TX | Bexar County | 138 kV | 100 MW | 3.4 yrs | 69.1 |
| SOUTH SAN ANTONIO | Substation-Adjacent | TX | Bexar County | 138 kV | 100 MW | 3.4 yrs | 69.0 |
| PALO ALTO | Substation-Adjacent | TX | Bexar County | 138 kV | 100 MW | 3.4 yrs | 68.9 |
| MEDINA BASE | Substation-Adjacent | TX | Bexar County | 138 kV | 100 MW | 3.4 yrs | 68.8 |
| HOWARD | Substation-Adjacent | TX | Bexar County | 138 kV | 100 MW | 3.4 yrs | 68.8 |
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 BIG FOOT 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.