Jeff founded TESS in 1994 and currently serves as President. He has a Bachelor of Science and a Master of Science degree in mechanical engineering from the University of Wisconsin. He is a former technical coordinator of the TRNSYS program at the Solar Energy Laboratory at the University of Wisconsin and has a strong background in energy system design and modeling. While at TESS, Jeff has spearheaded numerous modeling and simulation projects from small-scale residential analyses to multi-million dollar, community-sized ventures.