Stefan Goebel is the General Manager of Arnold Glas, Corp., an architectural glass firm with a strong focus on research and implementation strategies. Stefan heads up the N.A. branch of the Germany based firm and has more than 6 years’ experience in consulting architects and building owner on energy efficient and environmentally friendly architectural glass products in high performance buildings. Stefan is a certified passive house consultant and a part time professor for glass technologies at the Bernard and Anne Spitzer School of Architecture, City College NYC. He holds a master’s degree in Industrial Engineering from the University of applied Science, Cologne, Germany.