WASHINGTON, D.C. - Today, U.S. Senators Martin Heinrich (D-N.M.), Cory Gardner (R-Colo.), Michael Bennet (D-Colo.), Dick Durbin (D-Ill.), Joe Manchin (D-W.Va.), and Kamala Harris (D-Calif.) introduced legislation to authorize an Energy Technology Maturation Program at the U.S. Department of Energy (DOE) to facilitate successful commercialization of...