Polk County, Texas: power grid and siting data
Sam Houston Electric Cooperative owns most of the substations near the county center. It has 15 mapped substations, owned mostly by Sam Houston Electric Cooperative, Entergy (non-ERCOT) and City Of Livingston; the highest voltage is 500 kV. The ERCOT queue lists 0 generation projects and 0 battery storage projects here.
Substations in Polk County
2 at 345 kV, 12 at 138 kV, 1 at 69 kV and below.
| Substation | Voltage | Owner | Lines | |
|---|---|---|---|---|
| Israel Road | 500 kV | Sam Houston Electric Cooperative | 2 | map |
| Goodrich | 345 kV | Sam Houston Electric Cooperative | 1 | map |
| Poco | 138 kV | Entergy (non-ERCOT) | 4 | map |
| Corrigan Bulk | 138 kV | Entergy (non-ERCOT) | 3 | map |
| Gulf Switching Station | 138 kV | Entergy (non-ERCOT) | 3 | map |
| Bold Springs | 138 kV | Sam Houston Electric Cooperative | 2 | map |
| Livingston | 138 kV | City Of Livingston | 2 | map |
| Menard | 138 kV | Sam Houston Electric Cooperative | 2 | map |
| Carlisle | 138 kV | Sam Houston Electric Cooperative | 2 | map |
| Indian | 138 kV | Sam Houston Electric Cooperative | 1 | map |
| Corrigan | 138 kV | Sam Houston Electric Cooperative | 1 | map |
| Ogletree | 138 kV | City Of Livingston | 1 | map |
| Unnamed station | 138 kV | Georgia Pacific Wood Prod S Llc | 0 | map |
| Blanchard | 138 kV | Sam Houston Electric Cooperative | 0 | map |
| Onalaska | 69 kV | Sam Houston Electric Cooperative | 2 | map |
ERCOT interconnection queue
No generation projects are queued in Polk County. No battery storage projects are queued.
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 Polk County.
Wholesale power prices
No price data.
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: Seven Oaks (3.5 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 Polk 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.