Philip Haves is the Leader of the Simulation Research Group. He has worked on many different aspects of commercial buildings since 1986, with particular interest in simulation and building operations. He is a Fellow of ASHRAE, the immediate past chair of its Technical Committee on Energy Calculations and a former Chair of its Technical Committee on Building Operation Dynamics. He is a past president of IBPSA-USA, the U.S. affiliate of the International Building Performance Simulation Association. He has a B.A. in Physics from Oxford University and a Ph.D. in Radio Astronomy from Manchester University.