David Hepinstall has been Executive Director of the Association for Energy Affordability, Inc. (AEA) in New York City since 1993. Under his leadership, AEA has become a national not-for-profit training, technical support, and energy services organization supporting energy efficiency upgrades in buildings. With expertise in multifamily building energy efficiency, public program design and research, Hepinstall has designed and managed research, demonstration, training, capacity-building, and technology development and deployment programs that increase energy efficiency in existing buildings, provide design services for new green construction, and promote community development. He has led AEA in its roles as program implementer for a variety of government and utility energy efficiency programs, has served on state and city policy advisory bodies, and received several national leadership awards. He is also a founding board member and past Board Chair of the Building Performance Institute (BPI). He also played a lead role establishing AEA as a US Department of Energy recognized National Weatherization Training Center, an IREC accredited training provider, and developer of AEA’s Passive House Tradesperson training facility in the Bronx.