The paper "A roadmap for the implementation of a renewable energy community" by Paolo Esposito explores the regulatory framework and a standardized procedure for establishing Renewable Energy Communities (RECs) in Europe. RECs are innovative energy systems that promote the use of renewable energy sources, aiming to achieve environmental, economic, energy, and social benefits. The main objectives of the paper are to examine the regulatory framework of Member States and to present a detailed roadmap for implementing RECs. The roadmap includes four main phases: feasibility study, member aggregation, operating phase, and technical and economic management. The feasibility study involves an energy analysis of end-user consumption and a general assessment. Member aggregation involves forming a legal entity with different funding opportunities. The operating phase includes plant construction and project validation by national authorities. The technical and economic management phase focuses on optimizing energy flows and managing the community. The paper also discusses the legal settlement provisions for the transposition of RECs, compares funding opportunities, and formulates key performance indicators (KPIs) for evaluating the different aspects of RECs. The regulatory framework in Europe is analyzed, highlighting the differences and similarities among Member States. The paper provides a comprehensive guide for policymakers, developers, and stakeholders to advance the development of RECs.The paper "A roadmap for the implementation of a renewable energy community" by Paolo Esposito explores the regulatory framework and a standardized procedure for establishing Renewable Energy Communities (RECs) in Europe. RECs are innovative energy systems that promote the use of renewable energy sources, aiming to achieve environmental, economic, energy, and social benefits. The main objectives of the paper are to examine the regulatory framework of Member States and to present a detailed roadmap for implementing RECs. The roadmap includes four main phases: feasibility study, member aggregation, operating phase, and technical and economic management. The feasibility study involves an energy analysis of end-user consumption and a general assessment. Member aggregation involves forming a legal entity with different funding opportunities. The operating phase includes plant construction and project validation by national authorities. The technical and economic management phase focuses on optimizing energy flows and managing the community. The paper also discusses the legal settlement provisions for the transposition of RECs, compares funding opportunities, and formulates key performance indicators (KPIs) for evaluating the different aspects of RECs. The regulatory framework in Europe is analyzed, highlighting the differences and similarities among Member States. The paper provides a comprehensive guide for policymakers, developers, and stakeholders to advance the development of RECs.