The Berkeley Workshop, hosted by the Lawrence Berkeley National Laboratory, was thematically dedicated to energy-related, cutting-edge science and technology. Topics included sustainable energy technologies and energy efficiency, potential hybridizing technologies, new plant and microbial approaches, energy transformation for transport and storage, and third and fourth generation fission nuclear energy. The participation of U.S. scientists brought attention to the U.S. energy situation. The Workshop identified new productive avenues of research that could have a strong impact on future local and global energy use. The Workshop was chaired by Study Panel Co-Chair Steven Chu.