Caldwell County, Texas: power grid and siting data
Caldwell County is in ERCOT's LCRA load zone. It has 9 mapped substations, owned mostly by LCRA, City Of Austin and Texas Petroleum Investment Company; the highest voltage is 345 kV. The ERCOT queue lists 9 generation projects (6 gas and 3 solar) and 8 battery storage projects here.
Substations in Caldwell County
1 at 345 kV, 5 at 138 kV, 3 at 69 kV and below.
| Substation | Voltage | Owner | Lines | |
|---|---|---|---|---|
| Lytton Springs | 345 kV | City Of Austin | 10 | map |
| Luling City | 138 kV | LCRA | 8 | map |
| Mendoza | 138 kV | LCRA | 3 | map |
| Luling Magnolia | 138 kV | Texas Petroleum Investment Company | 2 | map |
| Unnamed station | 138 kV | LCRA | 2 | map |
| Dale | 138 kV | LCRA | 1 | map |
| Lockhart | 69 kV | LCRA | 6 | map |
| Camp Gary | 69 kV | Us Department Of Labor | 2 | map |
| Reedville | 69 kV | Bluebonnet Elec Coop | 2 | map |
ERCOT interconnection queue
9 generation projects are queued in Caldwell County: 6 gas and 3 solar. By stage: 3 with a signed interconnection agreement and 6 in full interconnection study. 8 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
8 planned grid projects touch Caldwell County: 2 new substations, 4 new or rebuilt lines and 2 substation upgrades, 8 at 345 kV or above.
Wholesale power prices
The LCRA load zone averaged $44.89/MWh day-ahead over the last 7 days. Nearest generator pricing nodes: BIGSTAR_ALL $43.58, BUDA_RN $44.48 and BASTEN_CCU $43.83.
ERCOT day-ahead settlement point prices. Hourly history, battery spreads and real-time prices are on the map.
Data centers and large loads
5 announced data center campuses in Caldwell County, 2 at or above ERCOT's 75 MW large load threshold.
- "Already Fully Approved and Energized", $9.1 Billion for 191 MW, and 8,766 MW Nobody Counted The Grid Report 2026-08-14
- Prefer an outright ban: Small Texas town weighs data center restrictions Austin American-Statesman 2026-07-17
- PowerHouse Plans Austin Suburb Data Center But Seeks To Skirt City Control Bisnow 2026-05-05
- How Data Centers Are Eating Up Rural Texas Austin Chronicle 2026-05-01
- Commissioners OK tax abatement agreement, table development agreement for data center Caldwell County 2026-03-30
Jurisdiction
Nearest city to the county center: Lockhart (2.1 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 Caldwell 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.