Oak Ridge National Laboratory (ORNL) is the largest US Department of Energy science and energy laboratory, leading basic and applied research to deliver transformative solutions to compelling problems in scientific discovery, clean energy, and security. Our diverse capabilities span a broad range of scientific and engineering disciplines, enabling the Laboratory to explore both fundamental and applied science and engineering challenges. ORNL supports the Department of Energy’s mission through the following major scientific competencies: clean energy, neutron sciences, high-performance computing, complex biological systems, advanced materials research, nuclear science, and national security.