The Department of Energy's overarching mission is to advance the national, economic, and energy security of the United States; to promote scientific and technological innovation in support of that mission; and to ensure the environmental cleanup of the national nuclear weapons complex. The Department's strategic goals to achieve the mission are designed to deliver results along five strategic themes:

Energy Security: Promoting America’s energy security through reliable, clean, and affordable energy

Nuclear Security: Ensuring America’s nuclear security

Scientific Discovery and Innovation: Strengthening U.S. scientific discovery, economic competitiveness, and improving quality of life through innovations in science and technology

Environmental Responsibility: Protecting the environment by providing a responsible resolution to the environmental legacy of nuclear weapons production

Management Excellence: Enabling the mission through sound management