Sutton County, Texas: power grid and siting data
Sutton County is in ERCOT's SOUTH load zone. It has 9 mapped substations, owned mostly by AEP Texas, Southwest Texas Electric Cooperative and Mr Ranch Holdings Ltd; the highest voltage is 345 kV. The ERCOT queue lists 0 generation projects and 2 battery storage projects here.
Substations in Sutton County
1 at 345 kV, 3 at 138 kV, 5 at 69 kV and below.
| Substation | Voltage | Owner | Lines | |
|---|---|---|---|---|
| Orsted | 345 kV | AEP Texas | 4 | map |
| Sonora | 138 kV | AEP Texas | 5 | map |
| Cauthorn | 138 kV | Southwest Texas Electric Cooperative | 2 | map |
| Tinsley | 138 kV | AEP Texas | map | |
| Tap305493 | 69 kV | Mr Ranch Holdings Ltd | 3 | map |
| Sonora Atlantic | 69 kV | AEP Texas | 1 | map |
| Bond Road | 69 kV | AEP Texas | map | |
| Friess Ranch | 69 kV | AEP Texas | map | |
| Sutton | 69 kV | AEP Texas | map |
ERCOT interconnection queue
No generation projects are queued in Sutton County. 2 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 Sutton 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: WL_RANCH_RN $54.58, SKY1 $51.22 and LGD_LANGFORD $56.67.
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: Sonora (7 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 Sutton 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.