The U.S. is now actively producing all the major components in the solar supply chain: polysilicon, ingots, wafers, cells, and modules. That hasn’t happened in over a decade, since SolarWorld closed its wafer-production plant in Oregon in 2013.
“Except for the glass, everything we have in the module could be domestic, should the client choose that,” said Martin Pochtaruk, CEO of Heliene Solar, which manufactures in Minnesota. “The main issue is the limitation on capacity.”
The U.S. can make almost 65 gigawatts of panels annually, according to the Solar Energy Industries Association. But it can’t yet build enough of the precursor components to meet the demand for panels. (SEIA expects the U.S. will install 44 gigawatts of direct-current solar capacity this year.)
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