High Quality Content by WIKIPEDIA articles! The Office of Energy Efficiency and Renewable Energy (EERE) is an office within the United States Department of Energy that invests in high-risk, high-value research and development in the fields of energy efficiency and renewable energy technologies. The Office of EERE is led by the Assistant Secretary of Energy Efficiency and Renewable Energy, who manages several internal EERE offices and ten programs that support research, development, and outreach efforts.