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SEG Solar’s new facility will join a 2GW plant currently in operation and a 4GW facility that will start operations this week. Image: SEG Solar.
US solar manufacturer SEG Solar has announced plans to build a third module manufacturing plant in the US, with an annual production capacity of 4.6GW, which will bring the company’s total operational manufacturing capacity to 10.6GW.
The 1.15 million square foot facility will be built in Greater Houston, in the US state of Texas, where the company is headquartered. SEG expects to complete construction at the factory by March 2027 and begin commercial production of heterojunction technology (HJT) modules in May 2027.
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While the company is not the largest US-based solar module manufacturer by annual production capacity—First Solar has around 14GW of capacity in operation—the move is an important step in SEG’s plan to build a more robust vertically-integrated solar manufacturing operation in the US. The company plans to open its second module manufacturing plant in Houston by the end of this week and has started construction on a 3GW ingot and wafer manufacturing plant in Indonesia.
Crucially, the company claims that it has been designated as a non-PFE (prohibited foreign entity). The PFE title was introduced by the Trump administration as part of the One Big Beautiful Bill Act (OBBBA) for companies that benefit from government subsidies for manufacturing in China, Russia, North Korea and Iran.
PFEs are not able to benefit from a number of clean energy tax credits that have become a cornerstone of renewable energy development in the US, including the 45X Advanced Manufacturing Production Credit and the 48E Investment Tax Credit. SEG Solar’s designation as a as a non-PFE company means it will not be targeted by the ongoing Foreign Entity of Concern (FEOC) investigations that have cracked down on companies perceived to be benefitting from involvement with Chinese firms, even though the company is advancing an upstream manufacturing facility in Indonesia.
SEG Solar also announced today that it is “evaluating potential US sites for a dedicated HJT manufacturing facility” as it looks to onshore more of its manufacturing capacity and build a vertically integrated cell and module supplier.
PV Tech has been running PV ModuleTech Conferences since 2017. PV ModuleTech USA, on 16-17 June 2026, will be our fifth PV ModulelTech conference dedicated to the U.S. utility scale solar sector. The event will gather the key stakeholders from solar developers, solar asset owners and investors, PV manufacturing, policy-making and and all interested downstream channels and third-party entities. The goal is simple: to map out the PV module supply channels to the U.S. out to 2028 and beyond.
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PV Tech has been running an annual PV CellTech Conference since 2016. PV CellTech USA, on 13-14 October 2026 is our fourth PV CellTech conference dedicated to solar manufacturing in the USA.
From polysilicon, wafers, ingots, cells and modules, to critical component suppliers including glass and frames, the event connects every stage of the value chain under one roof.
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PV Tech has been running PV CellTech Conferences since 2016. PV CellTech Global, on 20-21 April 2027, is the meeting place for everyone invested in the growth of PV manufacturing and advancement in cell technologies, which will drive us towards the installed capacity required to power the planet by 2050. This is a gathering of key stakeholders driving capital expenditure and technologies for new PV manufacturing plants across the globe to harness the opportunities the growth of PV represents out to 2050 and beyond. The conference takes place in one conference room, where all senior peers have the same shared experience of learning and unique insight, unmatched anywhere else in the solar industry events calendar.
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