SEG Solar is significantly expanding its domestic manufacturing footprint by announcing plans for a third solar module factory in the Houston, Texas, area. This new 4.6-gigawatt facility will bring the company’s total annual U.S. module production capacity to 10.6 gigawatts. As domestic solar companies work to localize supply chains in response to evolving trade regulations, this project positions SEG as a major player in the U.S. market. The facility is specifically designed to produce high-efficiency heterojunction solar modules and will meet strict compliance standards regarding foreign entities of concern to ensure a secure, reliable supply chain.
The company has already finalized an agreement with a local construction firm to develop the 1.15-million-square-foot site, which will house both manufacturing and warehousing operations. This announcement arrives shortly before the scheduled August 7, 2026, grand opening of SEG’s second U.S. plant, which boasts a 4-gigawatt capacity. Construction on the newly announced Texas facility is slated for completion in March 2027, with commercial production expected to commence in May 2027.
Beyond its domestic module assembly, SEG is actively working to strengthen its upstream supply chain. The company is currently planning an ingot and wafer manufacturing plant in Indonesia to stabilize the availability of critical components. Furthermore, SEG is evaluating potential locations within the United States for a dedicated solar cell factory. These strategic moves are intended to further localize the manufacturing process and reduce dependence on international supply chains, aligning with broader industry efforts to enhance the resilience of the American solar market.