Kenneth Zweibel is the director of the GW Solar Institute at The George Washington University in Washington DC. Ken has almost 30 years experience in the solar energy field. Ken was a senior program manager at the National Renewable Energy Laboratory where he led the Thin Film PV Partnership Program. Ken subsequently co-founded and became president of a thin film PV start-up, PrimeStar Solar, a majority share of which was purchased by General Electric. Ken is a frequently published contributing writer and has written two books on solar photovoltaics. He is the co-author of a 2008 Scientific American article on the role of solar energy in addressing climate change and energy problems.