Wilson County, Texas: power grid and siting data
Wilson County is in ERCOT's SOUTH load zone. It has 6 mapped substations, owned mostly by City Of San Antonio, Floresville Electric Light & Power System and Guadalupe Valley Elec Coop; the highest voltage is 345 kV. The ERCOT queue lists 6 generation projects (5 solar and 1 gas) and 9 battery storage projects here.
Substations in Wilson County
1 at 345 kV, 5 at 138 kV.
| Substation | Voltage | Owner | Lines | |
|---|---|---|---|---|
| Floresville | 345 kV | City Of San Antonio | 2 | map |
| Stockdale | 138 kV | City Of San Antonio | 3 | map |
| Sutherland Springs | 138 kV | Floresville Electric Light & Power System | 2 | map |
| La Vernia | 138 kV | Guadalupe Valley Elec Coop | 2 | map |
| Wilson | 138 kV | Guadalupe Valley Elec Coop | 2 | map |
| Eagle Creek | 138 kV | Floresville Electric Light & Power System | 2 | map |
ERCOT interconnection queue
6 generation projects are queued in Wilson County: 5 solar and 1 gas. By stage: 4 with a signed interconnection agreement and 2 in full interconnection study. 9 battery storage projects are queued, 2 with a signed interconnection agreement.
From the ERCOT GIS report. Project names, developers, MW and dates are on Pro.
Planned transmission
10 planned grid projects touch Wilson County: 1 new substation, 6 new or rebuilt lines and 3 substation upgrades, 9 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: CALAVER_JKS1 $42.98, PAD1_ESS_RN $44.27 and BR_VHB6CT5_6 $44.36.
ERCOT day-ahead settlement point prices. Hourly history, battery spreads and real-time prices are on the map.
Data centers and large loads
2 announced data center campuses in Wilson County, 2 at or above ERCOT's 75 MW large load threshold.
- Resident: Rural life threatened by data center Wilson County News 2026-03-18
- Wilson County tightens tax abatement policy amid data center concerns Wilson County News 2026-03-09
- Wilson County residents: Protect our water Wilson County News 2026-02-20
- Misae cites TCEQ standard permit path for Stockdale gas plant / DC hub Wilson County News
Jurisdiction
Nearest city to the county center: Floresville (3.7 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 Wilson 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.