These solar panel makers will be the government’s go-to vendors for climate projects

The distinction will help First Solar and Qcells become go-to suppliers for federal projects, which are expected to be a major source of demand for solar panels.

Two of the world’s biggest solar panel makers, First Solar and Hanwha Qcells, are the first to register products under an environmental ratings system that will make them preferred in U.S. government purchasing, an industry group said on Tuesday.