Instead of reading the complete 505 page QTR document, review this presentation on the U.S. Dept. of Energy's 2015 Quadrennial Technology Review (QTR) by Dr. Lynn Orr, Under Secretary for Science and Energy, US Department of Energy. This presentation was sponsored by the MIT Energy Initiative, was given from 5:00 - 6:00 pm on Thursday, September 24, 2015, and was situated at Building E14, 6th floor, of the MIT Media Lab. Abstract The United States is in the midst of an energy revolution. Over the last decade, the United States has slashed net petroleum imports, dramatically increased shale gas production, scaled up wind and solar power, and cut the growth in electricity consumption to nearly zero through widespread efficiency measures. Technology is helping to drive this revolution, enabled by years to decades of research and development that underpin these advances in the energy system. The Department of Energy’s 2015 Quadrennial Technology Review (QTR) examines the status of the science and technology that are the foundation of our energy system, together with the research, development, demonstration, and deployment opportunities to advance them. This analysis is particularly instructive in the run up to the international climate negotiations taking place later this year at the 21st Conference of Parties, as technological advancements will be crucial to achieving global greenhouse gas emissions reductions. During his presentation, Under Secretary for Science and Energy Lynn Orr will provide an overview of the highlights of the QTR report and discuss examples of promising research and development opportunities that can help the nation achieve a low carbon economy.