In cooperation with ESDA Technologie GmbH, the project MoLaWS - "Development of a modular heat storage system using high-capacity, innovative latent heat storage elements " has been successfully started with a kick-off meeting at Paderborn University. The aim is to develop a new, modular, air-guided heat storage system consisting of innovative low-pressure-loss and cascadable high-performance latent heat storage elements. The aim is to adapt the heating and cooling supply to the current demand and to minimize the cost-intensive consumption of electricity and fossil fuels. The focus of KET is on the modeling and CFD-based investigation of the heat transfer processes induced by the phase change as well as on the design of the heat storage elements in regards to optimal heat transfer. The project is funded by the German Federal Ministry for Economic Affairs and Energy (BMWi) as part of the Central Innovation Program for SMEs (ZIM) with €188,690.