Matagorda County, Texas: power grid and siting data
Matagorda County is in ERCOT's SOUTH load zone. It has 29 mapped substations, owned mostly by AEP Texas, STEC and CenterPoint; the highest voltage is 345 kV. The ERCOT queue lists 12 generation projects (10 solar, 1 nuclear and 1 wind) and 14 battery storage projects here.
Substations in Matagorda County
4 at 345 kV, 14 at 138 kV, 11 at 69 kV and below.
| Substation | Voltage | Owner | Lines | |
|---|---|---|---|---|
| Sotex5 | 345 kV | CenterPoint | 15 | map |
| Blessing | 345 kV | AEP Texas | 7 | map |
| Houdini | 345 kV | AEP Texas | map | |
| Zoisite | 345 kV | AEP Texas | map | |
| Conoco | 138 kV | AEP Texas | 4 | map |
| Bay City | 138 kV | AEP Texas | 3 | map |
| Pledger | 138 kV | CenterPoint | 3 | map |
| Tap307924 | 138 kV | AEP Texas | 3 | map |
| Wadsworth | 138 kV | AEP Texas | 2 | map |
| Unnamed station | 138 kV | Equistar Chemicals Lp | 2 | map |
| Celanese Bay City | 138 kV | Oq Corporation | 2 | map |
| Palacios | 138 kV | AEP Texas | 2 | map |
| South Texas Project Pump | 138 kV | South Texas Project Nuclear Operating Company | 1 | map |
| Markham | 138 kV | AEP Texas | 0 | map |
| Chalmerp | 138 kV | AEP Texas | map | |
| Esperanza | 138 kV | AEP Texas | map | |
| Magill | 138 kV | AEP Texas | map | |
| Tidehaven | 138 kV | AEP Texas | map | |
| Bay City | 69 kV | STEC | 3 | map |
| Tres Palacious | 69 kV | STEC | 2 | map |
| Salt Dome | 69 kV | STEC | 2 | map |
| Clemville | 69 kV | AEP Texas | 2 | map |
| Van Vleck | 69 kV | STEC | 1 | map |
| Clemville South | 69 kV | STEC | 1 | map |
| Unnamed station | 69 kV | LCRA | 0 | map |
| Clemville Tap | 69 kV | AEP Texas | map | |
| Midfield Tap | 69 kV | AEP Texas | map | |
| Markham Tap | 69 kV | AEP Texas | map | |
| Fm 1468 | 69 kV | AEP Texas | map |
ERCOT interconnection queue
12 generation projects are queued in Matagorda County: 10 solar, 1 nuclear and 1 wind. By stage: 5 with a signed interconnection agreement and 7 in full interconnection study. 14 battery storage projects are queued, 5 with a signed interconnection agreement.
From the ERCOT GIS report. Project names, developers, MW and dates are on Pro.
Planned transmission
9 planned grid projects touch Matagorda County: 1 new substation, 6 new or rebuilt lines and 2 substation upgrades, 4 at 345 kV or above; 1 already energized.
Wholesale power prices
The SOUTH load zone averaged $48.57/MWh day-ahead over the last 7 days. Nearest generator pricing nodes: BAYC_BESS_RN $60.15, PAVLOV_BT_RN $71.56 and PALACIOS_RN $64.80.
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 Matagorda County, 1 at or above ERCOT's 75 MW large load threshold.
- Two data centers proposed for Matagorda County, residents pushing back ABC13 2026-05-10
- County issues press release on data centers Bay City Sentinel 2026-05-08
- The Forecast Nobody Believes: ERCOT Files 368 GW by 2032, Then Walks It Back The Grid Report 2026-04-24
- Voorhies appointed as Matagorda County’s first fire marshal Victoria Advocate 2026-04-21
- Matagorda County names Mike Voorhies as first fire marshal Bay City Tribune 2026-04-21
Jurisdiction
Nearest city to the county center: Bay City (6.3 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 Matagorda 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.