SEG Solar Expanding PV Manufacturing Capacity to 10.6 GW with Future Houston Factory
Module manufacturer SEG Solar is developing its third U.S. manufacturing facility in Texas.
The 4.6 GW facility in the greater Houston area is expected to bring SEG's planned annual U.S. module manufacturing capacity to 10.6 GW, according to a recent release. The site, which will include a factory and a warehouse, is expected to span roughly 1.15 million square feet, according to the company. This new announcement comes ahead of the third-quarter operational launch of SEG’s second facility (4 GW) in Houston.
“It will further strengthen our U.S. manufacturing capabilities while supporting ongoing technology innovation,” Timothy Johnson, vice president of operations at SEG, said in a statement.
Construction of SEG’s third facility is projected to be completed by March 2027 and will be commercially operational that May. This third facility, SEG adds, will support its transition into next-gen Heterojunction Technology (HJT).
Silicon heterojunction solar cells are composed of three layers of photovoltaic (PV) material to maximize power generation. These layers combine an inner monocrystalline silicon core with outer amorphous silicon thin-films (which make up the top and bottom layers). The core middle layer converts sunlight into electricity, while the outer layers achieve high performance by preventing energy recombination.
Through this process, HJT theoretically allows more energy to be converted into electricity as opposed to those materials individually. This combination can result in energy capacity as high as 25%, compared with traditional PVs only capturing about 15% of the available energy from the sun.
To expand HJT technology to the U.S. market, SEG’s third facility will also be designed to support Foreign Entity of Concern (FEOC) compliance—a U.S. statutory designation aimed at reducing supply chain reliance from China, Russia, Iran, and North Korea. The Houston-based company is establishing an Indonesian facility to process its silicon materials, integrating an FEOC-aligned solar energy manufacturing chain into the global market.
Founded in 2021, SEG Solar reportedly shipped over 7.5 GW of solar modules to the utility, commercial, and residential markets by the end of 2025. SEG continues to focus on renewable energy solutions through solar power as it pivots to HJT production both domestically and globally.
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EnergyTech Staff
Rod Walton is head of content for EnergyTech.com. He has spent 17 years covering the energy industry as a newspaper and trade journalist.
Walton formerly was energy writer and business editor at the Tulsa World. Later, he spent six years covering the electricity power sector for Pennwell and Clarion Events. He joined Endeavor and EnergyTech in November 2021.
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