The objective of the ESTEFI project is to develop a solution that efficiently addresses public transport needs in urban environments through a new intermodality concept (tram, bus, electric vehicle, and elevator), which will functionally integrate the most innovative technologies in energy storage. Through the design of an optimized microgrid, to which different transport modes and loads (horizontal and vertical) are connected, based on stateoftheart Energy Storage Systems (ESS) and power electronics (power converters), the demand for power from the main grid will be minimized. The intermodal station will integrate highpower energy storage systems capable of coping with peak energy demand, thereby ensuring the availability and stability of the microgrid.