Modern building services (MEP) systems make a significant contribution to saving fossil fuels and reducing carbon emissions. The prerequisite for achieving this is a targeted comprehensive analysis of the production and distribution of heating, cooling, and air. Networking, automation, and intelligent storage solutions make it possible to average out surplus and demand. Our planning work puts emphasis on heating, ventilation, and air-conditioning systems that are efficient and save resources. The central focus here is on production systems that use regenerative energy sources, on heat pumps, solar thermal systems, heat recovery systems, and buffer tanks, and on demand-compliant integrated systems for low-loss energy distribution.