This report examines the status of the science and technology that are the foundation of the U.S. energy system, together with the research, development, demonstration, and deployment (RDD&D) opportunities to advance them. It focuses on technologies with commercialization potential in the midterm and beyond. It frames various trade-offs that all energy technologies must balance across such dimensions as cost, security and reliability of supply, diversity, environmental impacts, land use and materials use. Additionally, it provides data and analysis on pathways to assist decision makers as they set priorities, within budget constraints, to develop more secure, affordable and sustainable energy services.
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