Doug Hollett, director of the Geothermal Technologies Office (GTO), was promoted to Deputy Assistant Secretary, Renewable Power for the Energy Department’s Office of Energy Efficiency and Renewable Energy (EERE) in December, assuming responsibility for the Solar, Wind and Water, Geothermal, and Grid programs within EERE. Hollett directed the GTO for three years, providing both technical and project oversight for new technologies designed to advance geothermal’s role in the U.S. energy portfolio. He brings thirty years of experience in energy production through his work with the oil and gas industry, where he directed unconventional new ventures, including new global opportunities in shale gas and tight oil reservoirs.