Energy communities, whose members engage in self-consumption and local energy sharing of renewable energy, offer significant potential. Besides smart energy sharing, members of the community cooperate in energy production and consumption. The recent energy market revision recognizes the potential of energy communities for reducing grid congestion and promoting local decarbonization efforts, and their contribution to standardizing processes and aligning them with existing structures. Explore the potential of energy communities, direct citizen involvement and local decarbonization projects that ensure grid security and customer protection.