Karnes County, Texas: power grid and siting data
Karnes County is in ERCOT's SOUTH load zone. It has 11 mapped substations, owned mostly by STEC, AEP Texas and CPS Energy; the highest voltage is 345 kV. The ERCOT queue lists 6 generation projects (6 solar) and 7 battery storage projects here.
Substations in Karnes County
2 at 345 kV, 1 at 230 kV, 4 at 138 kV, 4 at 69 kV and below.
ERCOT interconnection queue
6 generation projects are queued in Karnes County: 6 solar. By stage: 5 in full interconnection study and 1 done with the full study. 7 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
3 planned grid projects touch Karnes County: 3 new or rebuilt lines, 3 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: MILTON_RN $45.73, LYSSY_RN $45.81 and BRIGHTSD_U1 $46.09.
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: Karnes City (2 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 Karnes 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.