SEG Solar to expand US module capacity with 4-GW facility

HOUSTON, May 11, 2026 – SEG Solar will establish a new 4-GW solar module manufacturing facility in Houston, Texas, raising its total annual US module production capacity to approximately 6 GW per year, the company said on Thursday.

The 46,400-square-metre facility will command an investment of more than USD 200 million and is expected to begin commercial operations in Q3 2026.

“This new facility marks an important milestone for SEG. It will further strengthen our US 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,” said SEG Solar vice-president of operations Timothy Johnson.

The announcement follows SEG Solar’s plan to develop a 5 GW ingot and wafer manufacturing facility in Indonesia, with construction expected to begin in Q2 2026. The company said the expansion would support a fully integrated supply chain spanning ingots, wafers and cells.

Founded in 2021 and headquartered in Houston, Texas, SEG Solar is a vertically integrated solar photovoltaics manufacturer that supplies the utility, commercial and residential markets. According to the company, it had module production capacity of 6.5 GW and had shipped more than 7.5 GW of solar modules worldwide as of the end of 2025.

Photo courtesy of SEG Solar

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