This study addresses energy management strategies in hybrid renewable energy systems, with a focus on photovoltaic systems, battery storage, and hydrogen storage. Two scenarios were analyzed: a conventional microgrid and another with transactions between participants in a Renewable Energy Community (REC) to verify more sustainable and self-sufficient approaches. The results show that it is possible to reduce dependence on conventional electricity grids, emphasizing the importance of sharing energy and resources within a community. The study offers insights into system efficiency and grid independence, as well as significant contributions to the implementation and management of renewable energies.