OUR-CEE – Overcoming Underperforming Renovations in CEE RenovAID – Buildings Renovation RenewStart for Hydrogen Technologies Integrated Approach to Methane Emissions Abatement Instytut Energetyki / Institute of Power Engineering COMMENCE – Community Energy in Central Europe Strengthening Ownership of Climate Policy in Central and Eastern Europe (CEE) Mapping Building Material Stocks in Cities: Regional Material Cadastres Selection of Circular and Low-Carbon Building Materials Safe Use of Circular Construction Products