May 22, 2023 – The honorable Jennifer Granholm, U.S. Secretary of Energy, center), cuts the ribbon for the Research and Innovation Laboratory (RAIL) building during a ceremony at the National Renewable Energy Laboratory (NREL) in Golden, Colorado. Also present were (from left) NREL Director Martin Keller, U.S. Senator John Hickenlooper, Colorado Governor Jared Polis, and Brian Holland, director of Business development for M.A. Mortenson Company, which did the construction on the building. (Photo by Werner Slocum / NREL)