Madison County, Texas: power grid and siting data
Madison County is in ERCOT's NORTH load zone. It has 2 mapped substations, owned mostly by Brazos and Entergy (non-ERCOT); the highest voltage is 138 kV. The ERCOT queue lists 1 generation project (1 solar) and 3 battery storage projects here.
Substations in Madison County
2 at 138 kV.
ERCOT interconnection queue
1 generation project is queued in Madison County: 1 solar. By stage: 1 in full interconnection study. 3 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
No planned substations, lines or upgrades are recorded in Madison County.
Wholesale power prices
The NORTH load zone averaged $39.98/MWh day-ahead over the last 7 days. Nearest generator pricing nodes: BLUEJAY_RN $39.15, FTDUNCAN_RN $43.80 and GRIM_SLR_RN $39.10.
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: Madisonville (0.7 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 Madison 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.