Replacing the potent greenhouse gas SF6 in high-voltage circuit breakers with a clean alternative is critical as the U.S. looks to upgrade its aging electrical infrastructure.

The proposed high-voltage solid-state transformer (SST) offers enhanced flexibility and control for integrating renewable energy sources and electric vehicles in power grids.

Jennifer M. Granholm, the United States secretary of energy, visited a team of interdisciplinary and interinstitutional researchers led by Georgia Tech’s Lukas Graber.