Questions remain over Pattern Energy’s Southern Spirit line to connect ERCOT to Southeastern grids

San Francisco-based Pattern Energy, which has a significant Houston presence, is ready to begin acquiring land in Texas for a project that could bring power generated from other states to the Texas grid.

The $2.6 billion Southern Spirit Transmission Project will span 320 miles between Texas and Mississippi, crossing through Louisiana. Pattern Energy’s project team told the Houston Business Journal that 40% of the land needed for the project has been acquired in Louisiana and Mississippi, while the route for its Texas footprint has been approved. The company said that the line will have a capacity of 3,000 megawatts.

The line can transport power both to and from Texas, enabling the Lone Star State to share any potential excess generation with grids in the Southeast United States. Pattern’s website lists 2026 as a potential date to begin construction, and the line could be operational by 2029.

Houston Business Journal

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