Rosenfeld, Arthur H. is an American physicist note for his early leadership in the development of new research initiatives in energy efficiency in the U.S. Trained originally in particle physics under Enrico Fermi, he turned to energy efficiency in the 1970s. He formed the Center for Building Science at Lawrence Berkeley National Laboratory (1974). The Center developed many novel technologies, including electronic ballasts for fluorescent lamps (which led to compact fluorescent lamps), low-emissivity windows, and computer programs for the energy analysis and design of buildings. Rosenfeld received the Szilard Award for Physics in the Public Interest in 1986, and the Carnot Award for Energy Efficiency from the U.S. Department of Energy in 1993. He is the co-founder of the American Council for an Energy Efficiency Economy. He was appointed to the California Energy Commission in 2000.