In recent years, the global landscape of energy production and consumption has witnessed a shift towards more sustainable and community-driven models. Renewable energy communities (RECs) have emerged as dynamic and participatory entities where individuals, businesses, and local organizations unite to collectively generate, manage, and share energy resources. This transformation turns them from passive consumers into active participants, or "prosumers", contributing to the transition towards clean energy and fostering decarbonization. Realizing a REC demands substantial investments in renewable energy sources (RES), and the economic feasibility of such projects is pivotal for their successful establishment and long-term sustainability. Recognizing this, institutions are actively pushing for their diffusion by adopting incentive policies.