Dr. David Claridge, PE is the Director of the Energy Systems Laboratory and the Leland Jordan Professor of Mechanical Engineering at Texas A&M University. He is internationally known for his work on energy efficiency, particularly for pioneering development of existing building commissioning by leading the development of Continuous Commissioning® which has improved energy efficiency in hundreds of large buildings including universities, hospitals, offices, and airports with a typical payback of two years. He was also a major contributor to the methods used to measure enegy savings in the International Performance Measurement and Verification Protocol and ASHRAE Guideline 14. He holds eight patents, is author of over 350 journal and conference papers, is a Fellow ASME and of ASHRAE, and in 2011 was named an Honorary International Member of the Society of Heating, Air-conditioning and Sanitary Engineers of Japan in recognition of his contributions to energy efficiency in buildings. He received his B.S. from Walla Walla College and M.S. and Ph.D. degrees from Stanford University.