Increasing energy efficiency and supplying electricity from renewable energies are key measures of the Federal Government to achieve its climate policy goals. At the moment, however, there is no framework for action that would enable the public sector to define this ambitious goal in a practical sense – for example, in the context of building renovations: specific, measurable, attractive, achievable and time-bound. The present study aims to close this gap. It provides measurable, annual target parameters for CO2 emissions and energy consumption for the target group “owners of public non-residential buildings.” Applicable buildings with a specific type of use must achieve these parameters after renovation in order to be in line with the Climate Change Act and a climate-neutral energy system in Germany by 2045.
The Contracting Competence Centre of the German Energy Agency (dena), the initiators of this study, recommends that the public sector resort to energy performance contracting when it comes to the renovation of their buildings in order to benefit from the many advantages of this comprehensive energy service. For years now, energy performance contracting (EPC) has been offering municipalities a way to make the implementation of comprehensive energy saving measures achievable. By using the target parameters defined in this study in EPC projects, in addition to the great potential for energy savings, it is possible to achieve a climate-neutral building stock.