SEG Solar has announced plans to invest more than $200m in a new 4GW solar module manufacturing facility in Houston, Texas, expanding its U.S. production footprint as demand grows for domestically manufactured clean energy technologies.
The new facility, spanning nearly 500,000 square feet, is expected to create up to 800 jobs and begin commercial operations in the third quarter of 2026. Once operational, the site will increase SEG Solar’s total annual U.S. solar module production capacity to approximately 6GW.
The company said the expansion forms part of its long-term localisation strategy and will position SEG among the largest fully U.S.-owned solar module manufacturers.
According to SEG, manufacturing modules domestically will improve product traceability, delivery speed and quality assurance for customers and project partners across North America.
Timothy Johnson, Vice President of Operations at SEG Solar, said the investment represents a major step forward for the business’ U.S. manufacturing ambitions.
“This new facility marks an important milestone for SEG.
“It will further strengthen our U.S. manufacturing capabilities while supporting ongoing technology innovation. The plant is designed with the flexibility to integrate next-generation technologies, including HJT, as the industry evolves.”
– Timothy Johnson, Vice President of Operations at SEG Solar.
The announcement comes amid continued efforts by solar manufacturers to localise supply chains and reduce dependence on overseas production, particularly as policy and trade requirements around domestic sourcing continue to tighten in the United States.
SEG Solar said the new Houston facility follows its previously announced plans to develop a separate 5GW ingot and wafer manufacturing site in Indonesia, with construction expected to begin in Q2 2026.
Once both projects are complete, the company expects to operate a vertically integrated supply chain covering ingots, wafers and solar cells, strengthening resilience and supply security for customers.
SEG also stated it has been validated by multiple independent third parties as a non-PFE manufacturer for FEOC compliance purposes and currently supplies modules using non-PFE solar cells.
The investment adds to a growing wave of advanced manufacturing expansion across the U.S. clean energy sector as companies seek to scale domestic production capacity and secure long-term supply chain stability.
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