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Trina Solar

Solar Provider Chooses Gray to Deliver First U.S. Manufacturing Facility.

Founded in 1997, Trina Solar manufactures photovoltaic (PV) modules and offers related energy products and services for residential, commercial, and utility customers in its mission to responsibly build a carbon-emissions-free world. Since the company’s founding more than a quarter century ago, Trina Solar has delivered more than 150 GW of modules to customers in over 100 countries and regions.


For its first project with Gray and its first manufacturing facility in the U.S., Trina selected Gray to design and build a solar manufacturing assembly plant and warehouse in Wilmer, TX. The brownfield project will retrofit an existing cross-dock distribution center within one year—an aggressive timeline for the 1.3 million s.f. facility.

In Numbers

  • Wilmer, TX
  • 1300000 s.f.
    Square Footage
  • 11 months
Trina Solar
Wilmer, TX
1300000 s.f.
11 months
"We have long had a vision to manufacture solar products in the United States, and we are proud of the jobs we are creating and the investment we are making in the Wilmer community."
Steven Zhu, President

Trina Solar U.S.

Trina Solar’s corporate headquarters


The retrofit will require extensive engineering services to structurally reinforce the roof to support Trina’s hanging equipment. Gray will also coordinate across project teams to install all HVAC equipment and provide sufficient power to each of the customer’s seven PV panel assembly lines.


In addition to providing design, construction, and engineering services, Gray will also manage rough-setting connections for the plant’s process equipment to support the customer’s fast-track schedule.



Solar Energy Becoming a Hot Market in Texas


Starting in 2024, the plant will produce large power output Vertex modules using 210mm wafers with polysilicon sourced from the U.S. and Europe. Once fully operational, the manufacturing facility will produce 5 GW of solar modules and create 1,500 jobs for Wilmer and the surrounding region.


“We have long had a vision to manufacture solar products in the United States, and we are proud of the jobs we are creating and the investment we are making in the Wilmer community,” says Trina Solar U.S. President Steven Zhu. “As someone who has lived in Texas for more than a decade, I’m proud to bring Trina’s first module factory in the Western Hemisphere to the Lone Star State.”

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About Gray

Gray is a fully integrated global service provider specializing in engineering, design, construction, digital, equipment manufacturing, and real estate services.