The Massachusetts-based Fraunhofer Center for Sustainable Energy Systems (CSE) has appointed Christian Hoepfner, the center's current scientific director, to center director. Hoepfner succeeds Nolan Browne, who founded the center in 2008 and has served as its managing director since that time.
Browne has resigned to join Plotly, a start-up firm working on energy data visualization, analytics, research and development, and policy, as its new chief business officer.
Before joining Fraunhofer CSE, Hoepfner worked for 10 years at various start-up companies in the Boston area, most recently as vice president of product marketing and management at Luminus Devices, a maker of high-power light emitting diodes for consumer electronics and energy-efficient lighting products. He received his PhD from the Free University Berlin, Germany, for work in thin-film photovoltaics.