Deep dives on decarbonization, digitalization and energy efficiency in buildings

Techem Consumption Figures Study 2021: Savings potential for the building sector

Climate change, the energy transition and securing energy supplies demand our full attention as well as swift action. The outbreak of the supply crisis shows that the energy transition is no longer just about decarbonization, but also about European dependence on fossil energy imports from Russia and improving our infrastructure. Our goal must therefore continue to be to expand renewable energy sources and establish them on a broad scale, to save energy, and to continuously improve the efficiency of their use. At Techem, we therefore look at all conceivable measures to increase efficiency and avoid emissions, both in existing buildings and in new buildings.

The Techem Consumption Figures Study 2021 (VKW Study) provides comprehensive results and insights into the current situation. It is based on the evaluation and analysis of data from 2020 on final energy and water consumption as well as costs for heating and hot water from 2.1 million German apartments in around 176 thousand apartment buildings.

Core results at a glance

The Techem Consumption Figures Study 2021 makes it clear that the combination of all measures to improve the building shell, the behavior of occupants, and system efficiency can make a decisive contribution to a successful energy transition. In this way, a total potential for avoiding around 20 million t CO₂e in the German multi-family housing stock can even be tapped.

15 %

increased efficiency through
continuous heating monitoring
as well as optimized operational management

30-50 %

savings potential through
optimal insulation of the building shell

10-15 %

energy savings through
optimized user behavior,
especially ventilation behavior

Our media team

Katharina Bathe-Metzler

Media Spokesperson 
Head of Sustainability, Communications & Public Affairs

Janina Schmidt

Media Spokesperson 
Senior Corporate Communications Manager