BigStoreSwarm – Reducing winter electricity peaks caused by heat pump heating systems through the use of large water storage tanks in existing and new buildings

The future mass deployment of heat pumps carries the risk of generating a problematic additional peak load on the national electricity grid during the winter months. The BigStoreSwarm project investigated the flexibility potential offered by integrating large thermal energy water storage tanks (TES) into both existing and new residential buildings. To identify the optimal configurations, the research involved a comprehensive dynamic simulation study using TRNSYS, combining various Swiss building energy standards with photovoltaic systems and real climate profiles.