Barrio Grid / Texas counties / Brewster County

Brewster County, Texas: power grid and siting data

Brewster County is in ERCOT's SOUTH load zone. It has 6 mapped substations, owned mostly by AEP Texas and Rio Grande Electric Cooperative; the highest voltage is 345 kV. The ERCOT queue lists 1 generation project (1 solar) and 1 battery storage project here.

6substations

345 kVhighest voltage

1generation projects queued

1battery projects queued

$48.57SOUTH zone, 7-day avg $/MWh

Substations in Brewster County

1 at 345 kV, 5 at 69 kV and below.

Substation	Voltage	Owner	Lines
Alpine	345 kV	AEP Texas	4	map
Alpine Tap	69 kV	Rio Grande Electric Cooperative	3	map
Persimmon Gap	69 kV	Rio Grande Electric Cooperative	1	map
Bronco	69 kV	AEP Texas		map
Solaireholman Solar 69kv Poi Bus	69 kV	AEP Texas		map
House Mountain Bess	69 kV	AEP Texas		map

ERCOT interconnection queue

1 generation project is queued in Brewster County: 1 solar. By stage: 1 in full interconnection study. 1 battery storage project is 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 Brewster 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: HOUSEMTN_RN $60.30, TRIPBUT1_RN $60.52 and RIGGIN_UNIT1 $60.70.

ERCOT day-ahead settlement point prices. Hourly history, battery spreads and real-time prices are on the map.

Data centers and large loads

1 announced data center campus in Brewster County.

Developer behind Amazon’s Pecos County data center approaches Brewster County officials Marfa Public Radio 2026-09-18
Developer behind Amazon's Pecos County data center approaches Brewster County officials Texas Public Radio 2026-09-18

Jurisdiction

Nearest city to the county center: Alpine (44.2 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

Presidio County Pecos County Terrell County Jeff Davis County Reeves County Ward County

See Brewster County on the map

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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.