Mason County, Texas: power grid and siting data
Mason County is in ERCOT's WEST load zone. It has 9 mapped substations, owned mostly by AEP Texas, Central Texas Electric Cooperative and LCRA; the highest voltage is 138 kV. The ERCOT queue lists 0 generation projects and 0 battery storage projects here.
Substations in Mason County
3 at 138 kV, 6 at 69 kV and below.
| Substation | Voltage | Owner | Lines | |
|---|---|---|---|---|
| Fort Mason | 138 kV | LCRA | 4 | map |
| Mason | 138 kV | Central Texas Electric Cooperative | 3 | map |
| Fredonia | 138 kV | Central Texas Electric Cooperative | 1 | map |
| Mason | 69 kV | AEP Texas | 4 | map |
| Mason Switching Station | 69 kV | AEP Texas | 3 | map |
| Mason Phillips | 69 kV | AEP Texas | map | |
| Puncher | 69 kV | AEP Texas | map | |
| Seaquist Switching Station | 69 kV | AEP Texas | map | |
| Streeter-Ctec | 69 kV | AEP Texas | map |
ERCOT interconnection queue
No generation projects are queued in Mason County. No battery storage projects are queued.
From the ERCOT GIS report. Project names, developers, MW and dates are on Pro.
Planned transmission
1 planned grid project touches Mason County: 1 new or rebuilt line.
Wholesale power prices
The WEST load zone averaged $57.31/MWh day-ahead over the last 7 days. Nearest generator pricing nodes: BATCAVE_RN $41.50, JUNCTION_RN $72.78 and INKS_INKS_G1 $43.41.
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: Mason (1.3 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 Mason 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.