Dr. Marco Mangelsdorf received his Ph.D. from the University of California. He has been in the solar energy and renewable energy field since 1978, working on projects, presenting papers and attending energy conferences and trade shows in North America, Hawaii, Europe and Asia. Since 2000 he has been with ProVision Solar, Inc. based in Hawaii, purchasing the company from Hawaiian Electric Industries in 2003. He holds a C-13 electrical contracting license and is a licensed Supervising Electrician. He has authored numerous articles on energy since the 1980s and is a regular contributor on Think Tech Hawaii. In October 2012 he testified in Washington, D.C. before the U.S. International Trade Commission. He has also taught on the politics of energy at the University of Hawaii and University of California.