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HoustonJune 2, 2026 /PRNewswire/ — SEG Solar (referred to as “SEG”), a leading U.S. solar module manufacturer, announced plans to build its third U.S. manufacturing facility in the Greater Houston area of Texas. This new 4.6 GW plant is expected to bring SEG’s planned annual U.S. module production capacity to 10.6 GW, further solidifying its position as one of the largest domestic solar module manufacturers in the United States and advancing its long-term localization strategy.
As part of its ongoing U.S. expansion, SEG has signed an agreement with a local construction company to build the new 4.6 GW facility on a site spanning approximately 1.15 million square feet, including a factory and a warehouse. This announcement coincides with the upcoming grand opening of SEG’s second 4 GW plant, scheduled for August 7, 2026. The third facility is expected to be completed by March 2027, with commercial production slated to begin in May 2027.
The new plant is planned to support SEG’s transition to next-generation heterojunction (HJT) technology, enabling the production of high-efficiency modules that align with the evolving demands of the U.S. market. The facility is also designed to support the production of modules compliant with FEOC (Foreign Entity of Concern) requirements by enhancing supply chain traceability, material control, and compliance management.
To further support its U.S. manufacturing expansion and enhance resilience amid changing trade and supply chain policies, SEG has initiated plans to build ingot and wafer factories in Indonesia. This upstream integration aims to secure the supply of key components and strengthen the resilience of SEG’s global supply chain. SEG is also evaluating potential sites within the United States to build a dedicated HJT cell manufacturing plant, further advancing its strategy to localize key manufacturing processes and strengthen control over next-generation solar technology.
With plans to expand U.S. module capacity, integrate upstream supply chains, and transition to HJT technology, SEG continues to support the U.S. energy transition with reliable, compliant, and efficient solar solutions.