SEG Solar has inaugurated a new 4GW photovoltaic module manufacturing facility in Greater Houston, Texas, expanding its total annual US module production capacity to approximately 6GW.
The facility represents an investment of around US$200 million, spans more than 500,000 square feet and forms part of SEG’s wider strategy to build a more localised US solar manufacturing supply chain.
4GW Factory Expands US Manufacturing Base
The Tomball facility is SEG’s second US module factory and its largest domestic manufacturing site.
It contains four advanced production lines designed for the company’s latest SIERRA N-series heterojunction modules, supporting both 210mm and 210R wafer formats.
- 4GW annual module capacity
- Approximately US$200m investment
- More than 500,000 square feet
- Four HJT production lines
- Total US capacity increasing to 6GW
- Commercial operations expected during Q3 2026
SEG says the factory also incorporates specialised low-temperature soldering and precision sealing processes intended to improve module durability and output.
“Seeing another SEG manufacturing facility stand on American soil is a proud moment for all of us.” said Jun Zhuge, Founder and COO of SEG Solar.
AI Power Demand Adds New Solar Market
One of the more notable strategic points in SEG’s announcement is the link between solar manufacturing and AI data centre electricity demand.
The company says the rapid growth of artificial intelligence and data centres is increasing demand for reliable electricity and accelerating the requirement for additional energy infrastructure.
That creates another potential demand driver for domestic solar manufacturing alongside utility-scale renewable procurement and corporate decarbonisation.
Third US Factory Already Under Development
SEG’s expansion is not stopping at Tomball.
The company has already begun development of a third 4.6GW US module manufacturing facility, also planned for the Greater Houston area.
That site is expected to be completed in March 2027 and begin commercial production in May 2027.
If delivered as planned, SEG’s US annual module capacity would rise to approximately 10.6GW.
Manufacturing Becomes Strategic Energy Infrastructure
The Tomball opening illustrates the growing importance of manufacturing capacity within renewable-energy strategy.
Solar deployment depends not only on project financing and grid connections but also on resilient supplies of modules, cells and upstream materials.
By combining a 4GW operating factory with another 4.6GW site under development, SEG is attempting to scale its domestic manufacturing footprint alongside growing US demand.
The US$200 million Tomball project therefore represents both a manufacturing milestone and a broader renewable-infrastructure investment, strengthening the physical supply chain needed to support future solar deployment.
