SEG Solar has said it plans to build a new 4 GW solar PV module factory in Houston, Texas
The expansion will increase its total US module manufacturing capacity to around 6 GW and create up to 800 jobs
The manufacturer is also developing upstream ingot, wafer, and cell manufacturing capacity in Indonesia to support an integrated supply chain
SEG Solar has announced plans to expand its US solar PV module manufacturing capacity with the addition of a new 4 GW factory in Houston, Texas. “The plant is designed with the flexibility to integrate next-generation technologies, including HJT, as the industry evolves,” shared SEG Solar VP of Operations, Timothy Johnson.
On completion, the new $200 million factory will scale its total US module production capacity to approximately 6 GW. It will also create up to 800 new jobs.
SEG Solar currently operates a 2 GW module fab in Texas. The new facility will be spread across ~500,000 sq. ft.
The company said this expansion is part of its long-term localization strategy and will make it one of the largest 100% US-owned module manufacturers. The Houston fab will enter commercial operations in Q3 2026.
SEG is already working on a 5 GW ingot and wafer manufacturing facility in Indonesia, which is expected to enter construction in Q2 2026. A year ago, in May 2025, it launched a 2 GW solar cell factory in Indonesia targeting the US, Europe, and local Indonesian demand (see SEG Solar Launches 2 GW Solar Cell Factory In Indonesia).
“Once completed (5 GW ingot and wafer fab), SEG will be positioned to deliver modules through a fully integrated supply chain spanning ingots, wafers and cells — an increasingly important capability in today’s evolving policy and trade environment,” according to the company.
SEG says it has been validated as a non-PFE for FEOC compliance purposes by multiple independent third parties and currently provides modules with non-PFE solar cells.
The US prohibits projects starting after December 31, 2025, with material assistance from prohibited foreign entities from qualifying for Section 45Y or Section 48E tax credits (see US Treasury Tightens Clean Energy Tax Credit Eligibility Under FEOC Guidance).
In March 2026, SEG Solar expanded into the energy storage sector by establishing the SEG Energy division in Indonesia, which will offer residential, commercial & industrial (C&I), and utility-scale energy storage systems (ESS). With this, it attempts to capture opportunities under Indonesia’s 100 GW solar capacity target (see Indonesia Announces 100 GW Solar Power Capacity Plan).
