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SEG Solar plans to build a new 4.6 GW solar module factory in Houston, Texas
The project will raise the company’s planned US module manufacturing capacity to 10.6 GW on completion
SEG said it is also exploring US-based HJT cell production to strengthen supply-chain resilience
US-based solar module manufacturer SEG Solar has announced plans to build its 3rd solar PV module manufacturing facility in the Greater Houston area of Texas, with a planned annual production capacity of 4.6 GW.
The new plant will increase the company’s total annual US module manufacturing capacity to 10.6 GW, following its May 2026 announcement of a 4 GW module factory in the country. It already operates a 2 GW module fab in Texas (see SEG Solar Expanding US Module Production Capacity To 6 GW).
The new 4.6 GW facility is designed to support the company’s shift toward high-efficiency heterojunction (HJT) solar module technology. It believes this will strengthen compliance and supply-chain traceability requirements, aligned with the US market needs. The planned 4 GW fab, it had earlier said, will have the flexibility to integrate next-generation technologies, including HJT.
SEG Solar will build its new 4.6 GW factory on a 1.15 million sq. ft. site that will include a factory and warehouse. Construction is expected to be completed by March 2027, with commercial operations scheduled to begin in May of the same year.
“The facility is also designed to support FEOC-compliant module production through strengthened supply chain traceability, material control, and compliance management,” it shared.
To support its transition to HJT, SEG is now exploring the development of an HJT solar cell manufacturing facility in the US and is evaluating potential sites.
SEG is also developing a 5 GW ingot and wafer manufacturing facility in Indonesia to further support its US manufacturing expansion, which it also sees as strengthening its resilience amid evolving trade and supply chain policies.
Previously, Europe’s Meyer Burger entered the US market to manufacture HJT solar modules, but financial problems and uncertainty over government policies forced the company to shut its factory and sell off its assets. Earlier this year, Swift Solar acquired its IP portfolio and HJT equipment with plans to launch US GW-scale HJT manufacturing (see Swift Solar Acquires Meyer Burger’s IP Portfolio & HJT Equipment).
