David Yaffe is a professorial lecturer in energy law at George Washington University Law School. After forty years of legal practice in the electric utility and natural gas industries, David retired from active practice but remains a Senior Counsel with Van Ness Feldman, LLP, a specialty law firm headquartered in Washington, D.C. David’s practice specialized in all aspects of federal regulation related to the electric transmission grid. He represented owners of transmission systems as well as developers of utility-scale renewable generation interconnecting to the grid. He has worked on all manner of power supply contracts and transmission interconnection and transmission service agreements, including geothermal generation arrangements. He has written and lectured on a wide range of utility-related issues. He has a B.A. from Johns Hopkins University and a J.D. from George Washington University Law School.