TEMPO: Utilization of waste heat from the charging process of electric vehicles

With the increasing prevalence of electric drives in the transport sector, a significant growth in the necessary charging infrastructure is expected in the coming years. High-power charging represents a large proportion of the amount of energy converted and, despite highly efficient components, is associated with the release of a significant amount of waste heat, which has hardly been used to date. The aim of the TEMPO project is to develop a suitable concept for the extraction and further use of waste heat. The project tasks include the development of industrially transferable options for heat extraction during the charging process in the charging station, the linking of the heat source and heat sink with temporal decoupling by means of an efficient latent heat storage tank, and the development and analysis of application scenarios for waste heat for both heating and cooling purposes. At the same time, the necessary and scalable design tools for the overall system and the components are being developed. Equipping the system with the necessary sensors and an optimized control and regulation concept will enable the entire system to be operated in accordance with requirements. The development work for the system will culminate in the design and construction of a system demonstrator with a charging capacity of up to 50 kW, which will be used to collect operating data and provide practical proof of concept for future scaling and utilization. Based on the system developments and demonstration, the energetic, emission-relevant and economic potentials for large-scale deployment will finally be thoroughly evaluated.