Canadian Solar Claims Win In Maxeon TOPCon Patent Lawsuit

Canadian Solar (CSIQ) won a patent dispute against Maxeon Solar in the U.S. A federal court dismissed Maxeon's lawsuit, and the U.S. Court of Appeals vacated part of a PTAB decision. Canadian Solar claims the ruling confirms its non-infringement and strengthens its IP position. The company plans to continue defending its intellectual property.

Canadian Solar (NASDAQ: CSIQ) said the remaining U.S. patent case brought by Maxeon Solar Pte. Ltd. over three TOPCon-related patents has been resolved in its favor. Maxeon’s federal court infringement suit was dismissed with prejudice, and the Federal Circuit vacated part of a PTAB decision. PTAB had ruled in Canadian Solar’s favor in January 2026.

Recurrent Energy, a subsidiary of Canadian Solar (NASDAQ: CSIQ), closed $695 million in project financing and tax equity for the Cobalt Solar facility, a 330 MW project in Riverside County, California. The company said construction is underway with expected commercial operation by end-2027. Debt of about $484 million was led by MUFG and Nord/LB, with $211 million tax equity from Wells Fargo.

China’s energy efficiency PV standard, issued by multiple ministries, takes effect 1 Jan 2027 and sets tiered module conversion thresholds by cell type. Modules below Grade 3 will be barred from production and sales. JinkoSolar, LONGi Green and Canadian Solar discussed impacts on procurement criteria and capacity, plus storage expansion plans.

Canadian Solar (CSIQ) shares rose about 6.3% after the company said its U.S.-manufactured TOPCon and HJT Low Carbon HP solar modules received FM Approvals recognition for severe hail zones, aimed at improving insurability and bankability. The firm also set an Aug. 27, 2026 call for Q2 results. Nasdaq and S&P 500 were up.

CS PowerTech Inc., a Canadian Solar subsidiary, opened phase one of a 6 GW heterojunction (HJT) bifacial n-type solar cell factory at River Ridge Commerce Center in Jeffersonville, Indiana. The project involves nearly $1 billion in local investment and is expected to support 1,200+ jobs. Cells will supply CS PowerTech’s module plant in Mesquite, Texas, with phase two planned before year-end.