The increasing penetration of renewable energy sources requires advanced control strategies to manage their intermittency and to optimize energy flows. This study presents the development of a novel and scalable Energy Management System (EMS) designed for a hybrid renewable energy installation that combines photovoltaic panels, a wind turbine, a lithium-ion battery, an electrolyzer and a hydrogen storage tank. In contrast to most current approaches, which typically rely on a few number of operational modes, the proposed EMS integrates 24 distinct modes, thus enabling enhanced flexibility and efficiency. The EMS prioritizes operational safety and future scalability, leveraging an AC-bus architecture and predictive control strategies. Simulations highlight how dynamic switching of modes ensures reliability and maximizes the value of both electricity and hydrogen production. This innovative EMS sets a new benchmark for hybrid systems by offering a flexible control logic, suitable for real-time applications and future market-oriented large-scale deployments.