With the energy revolution, Germany has launched one of the most ambitious projects since reunification. The goal is to rebuild the entire energy system, towards more energy efficiency and renewable energies. The heating market with its enormous potential plays a key role here.
Germany's total final energy consumption is around 2,500 terawatt hours (TWh). One third of this, ie around 800 TWh, is solely accounted for by heating and hot water. The electricity range is far below with about 520 TWh. The highest energy-saving and CO2 reduction potentials of all energy consumption sectors in Germany, with the exception of coal, lie in the building sector.
CO2 target achievement by 2030 is technically feasible for the building stock. The much accelerated replacement of outdated heating technology and the use of modern, efficient heating systems that link efficiency and renewable energy could achieve two-thirds of the required CO2 reductions. The other third would be due to efficiency measures on the building envelope. However, if policy-makers really want to achieve the ambitious CO2 reduction target by 2030, significant steps must be taken, such as making the incentives policy more attractive and unbureaucratic.