Singapore-IEA Regional Training Programme on Efficient Grid-Interactive Buildings


Clay Nesler

The Nesler Group

Founder and CEO


Clay Nesler is the Founder and CEO of The Nesler Group, which provides strategic advisory services related to building decarbonization, smart building technologies, operational best practices, and sustainability reporting for both public and private-sector clients. He is also a Senior Advisor for Buildings and Energy at the World Resources Institute, where he helped establish WRI’s Buildings Initiative, the Sustainable Energy for All Building Efficiency Accelerator and the Three Percent Club for Energy Efficiency. Clay served as the Interim President of the Alliance to Save Energy in 2020. Clay worked more than 38 years at Johnson Controls in a variety of senior leadership positions in research, product development, marketing, innovation, strategy, manufacturing, corporate sustainability, and regulatory affairs in both the United States and Europe. For the past 15 years, he served as Vice President, Global Energy and Sustainability, leading the company’s Global Sustainability Council. Clay currently serves as co-chair of the GSA Green Building Advisory Committee Federal Building Decarbonization Task Group and serves on the Executive Committee of ASHRAE’s Task Force on Building Decarbonization. Clay has served on the board of the American Council for an Energy Efficient Economy; the executive group of the U.S. DOE/EPA SEE Action network; Industrial Advisory Board Chair of the U.S.-China Clean Energy Research Center’s Building Energy Efficiency consortium; a member of the International Energy Agency Energy Efficiency Industry Advisory Board; and on the steering committee for the Global Alliance for Buildings and Construction. Clay received BS and MS degrees in Mechanical Engineering from the University of Illinois at Urbana-Champaign and is co-inventor on 15 patents. He is a winner of the 2005 Corenet Global Innovator’s Award, a 2012 VERGE 25 award, a 2015 Distinguished Alumnus Award from the Department of Mechanical Science and Engineering at the University of Illinois at Urbana-Champaign, a 2017 leadership award from the U.S. Green Building Council, the 2019 Wisconsin Sustainable Business Council Leadership Forward Award and a 2020 R&D100 award.