MEEA Members Member Since American Council for an Energy-Efficient Economy (ACEEE) 2000 CenterPoint Energy 2004 Duke Energy 2006 Edison Foundation Institute for Electric Innovation 2009 Energy Education Council 2007 Geothermal Exchange Organization (GEO) 2023 Indiana Office of Energy Development 2014 PACENation 2018 Polyisocyanurate Insulation Manufacturers Association 2020 Resource Innovation Institute 2019 The DesignLights Consortium 2018 U.S. Environmental Protection Agency, Region 5 2024