Gaber, HossamLopes Alves Esteves, Otavio2024-08-272024-08-272024-07-01https://hdl.handle.net/10155/1830This thesis addresses the integration and optimization of Nuclear-Renewable Hybrid Energy Systems (N-RHES) with a focus on Load Following (LF) capabilities. The primary aim is to enhance the operational flexibility of nuclear reactors to adapt to dynamic power demands. A dynamic simulation tool was developed for different nuclear reactor technologies, including Pressurized Water Reactors (PWR) and Molten Salt Reactors (MSR), enabling detailed analysis of reactor power behaviour under different Load Following scenarios. Additionally, a Nuclear Reactor in the Loop (NRiL) system was implemented for accurate real-time evaluation of control systems, providing precise assessments without the need for expensive and time-consuming physical tests. The final component, the Nuclear-Renewable Hybrid Energy System Simulator (N-RHESS), integrates an energy management system within the simulation environment, improving N-RHES designs and decision-making by allowing users to develop complex energy load profiles and assess the feasibility of integrating nuclear reactors. The research demonstrated significant improvements in the operational efficiency and economic viability of N-RHES, highlighting its potential to enhance grid reliability, reduce carbon emissions, and promote sustainable energy solutions. This work contributes to the field of energy systems engineering by providing innovative tools and methodologies for integrating and optimizing nuclear and renewable energy sources.enNuclear-Renewable Hybrid Energy SystemsLoad FollowingDynamic simulationHardware-in-the-LoopEnergy management systemsDissertation