Steven Nadel joined ACEEE in 1989 and was has served as executive director since 2001. Before his promotion he served as deputy director and director of ACEEE’s Utilities and Buildings programs. Before ACEEE, Steve worked for Massachusetts’ largest electric utility and largest environmental group and worked with an inner city housing organization in Connecticut. He has worked in the energy efficiency field for more than 40 years and has over 200 publications.His current research interests include energy and climate change policy; strategies to decarbonize the buildings, transportation and industrial sectors; utility-sector energy efficiency programs and policies; and appliance and equipment efficiency standards. Steve earned a MS in energy management from the N.Y. Institute of Technology and a MA in environmental studies and BA in government from Wesleyan University.

Christopher Perry conducts research to support energy-efficiency building codes and equipment standards, as well as smart and grid-interactive buildings.He joined ACEEE in 2015. Prior to joining ACEEE, Chris worked at URS Corporation in Ohio as an energy management engineer, and most recently in Virginia as a sustainability consultant at JDM Associates. Chris is aregistered professional engineer in Washington DC, LEED Accredited Professional (building design + construction), and Certified Energy Manager. He earned a masters in engineering management from George Washington University and a bachelor of science in industrial engineering from Pennsylvania State University.

Charles Jelen is an Application Engineer based out of La Crosse, WI. He is primarily responsible for pre-sale support of Trane Systems and System Concepts. His areas of expertise are in Chilled Water Systems, Refrigerants, Electrification, and System Modeling. Charles has been with Trane for 9 years and has held roles as TRACE 700 Product Manager, Centrifugal and Water-Cooled Product Support Engineer, and CDS (Customer Direct Service) Support Engineer. Prior to joining Trane Charles worked as an application and sales engineer for a process automation company out of Minneapolis, MN. Charles has a bachelor’s degree in Mechanical Engineering from the University of Minnesota and is a member of ASHRAE.

Joshua Morejohn serves as Director of Energy & Engineering for Facilities at the University of California, Davis. His team leads innovative energy initiatives across campus, manages the campus control systems, and develops energy related web apps for campus engagement and education. He specializes in energy and HVAC systems, smart buildings, optimization and occupant engagement. He is a licensed professional engineer and a certified energy manager and double-majored at UC Davis in Mechanical Engineering and Spanish.