MEEA Members Member Since American Council for an Energy-Efficient Economy (ACEEE) 2000 Argonne National Laboratory 2011 CenterPoint Energy 2004 Duke Energy 2006 East Kentucky Power Cooperative 2012 Geothermal Exchange Organization (GEO) 2023 Louisville Gas & Electric Company and Kentucky Utilities (LGE KU) 2012 PACENation 2018 Polyisocyanurate Insulation Manufacturers Association 2020 Resource Innovation Institute 2019 SEMCO ENERGY Gas Company 2014 The DesignLights Consortium 2018