Uvalde County, Texas: power grid and siting data
Uvalde County is in ERCOT's SOUTH load zone. It has 15 mapped substations, owned mostly by AEP Texas, STEC and Bielstein Mark M Etux Suzanne Q; the highest voltage is 138 kV. The ERCOT queue lists 2 generation projects (2 solar) and 5 battery storage projects here.
Substations in Uvalde County
7 at 138 kV, 8 at 69 kV and below.
| Substation | Voltage | Owner | Lines | |
|---|---|---|---|---|
| Uvalde | 138 kV | AEP Texas | 7 | map |
| Downie | 138 kV | STEC | 4 | map |
| Knippa | 138 kV | AEP Texas | 3 | map |
| Asphalt Mines | 138 kV | AEP Texas | 2 | map |
| Dry Frio | 138 kV | AEP Texas | map | |
| Poblano 138kv | 138 kV | AEP Texas | map | |
| Reading | 138 kV | AEP Texas | map | |
| Sabinal | 69 kV | STEC | 3 | map |
| Tap305243 | 69 kV | Bielstein Mark M Etux Suzanne Q | 3 | map |
| Tap310688 | 69 kV | Fts Iii Llc | 3 | map |
| Uvalde | 69 kV | STEC | 2 | map |
| Sabinal | 69 kV | AEP Texas | 2 | map |
| Ferris | 69 kV | STEC | 1 | map |
| West Uvalde | 69 kV | STEC | 1 | map |
| Montell | 69 kV | AEP Texas | map |
ERCOT interconnection queue
2 generation projects are queued in Uvalde County: 2 solar. By stage: 1 with a signed interconnection agreement and 1 in full interconnection study. 5 battery storage projects are queued, 0 with a signed interconnection agreement.
From the ERCOT GIS report. Project names, developers, MW and dates are on Pro.
Planned transmission
1 planned grid project touches Uvalde County: 1 new or rebuilt line, 1 at 345 kV or above.
Wholesale power prices
The SOUTH load zone averaged $48.57/MWh day-ahead over the last 7 days. Nearest generator pricing nodes: KNAPP_RN $133.80, HELIOS_RN $45.37 and DRYFRIO_RN $45.08.
ERCOT day-ahead settlement point prices. Hourly history, battery spreads and real-time prices are on the map.
Jurisdiction
Nearest city to the county center: Uvalde (7.9 mi). Outside city limits and ETJ, development falls under county rules and state law. City limits and estimated ETJ are on the map.
Nearby counties
See Uvalde County on the map
Every substation, line, queue project, pipeline and price node in Texas, plus Dub, an AI landman who answers questions about any spot. Free account, no card.
Sources: HIFLD and OpenStreetMap substations and lines, ERCOT GIS report (queue, 2026-09), ERCOT day-ahead prices, TxDOT and StratMap boundaries, Barrio Energy research. Updated 2026-11-09. Screening data only; the serving utility confirms capacity.