The core activity of Heatplan GmbH consists of planning, consulting and project management of heating and solar systems, including the creation of energy reports and the application for funding requests. This includes in particular: * Heating planning (renewable and alternative energy systems) * Solar planning (solar thermal and photovoltaics) * Specialist construction management of heating and solar projects * Energy consulting * Project management * Application for building and funding requests. Heatplan GmbH offers these services primarily for single-family and multi-family homes (EFH & MFH).