The deliverable provides a comprehensive overview of thermal management system strategies, modeling, and simulation within the RHODaS project. Initially, it focuses on detailing the thermal interface between inverters and cooling systems, exploring estimated junction temperatures, and analyzing the potential impacts of design choices on equivalent thermal resistance. Subsequently, the document delves into advanced 3D thermal and power loss modeling, employing Finite Element Analysis, with COMSOL Multiphysics playing a crucial role in heatsink design. Fundamental simulations cover aspects like liquid-cooled heatsink design and sensitivity studies. Notable contributions include the introduction of the thermal equivalent circuit model, the RHODaS Thermal Management System Toolbox, and the strategic decision to design six heatsinks for a high-power converter. The document effectively communicates outcomes and methodologies, concluding by addressing advancements in temperature monitoring, proposing sensor networks, and outlining strategies for precise readings and a more effective thermal management approach.