With the energy transition, the Federal Republic of Germany is undergoing a comprehensive and fundamental transformation of its energy supply and energy use in order to counter climate change. The German government has set itself the target of reducing greenhouse gas emissions by at least 65% by 2030 compared to the base year 1990. In order to achieve this, emission reduction targets were set for the different sectors in the 2050 climate protection plan. The building sector is directly responsible for 14% of total CO2 emissions in Germany. According to the Climate Protection Act (according to the source principle), the building sector is only allowed to emit 67 million tonnes of CO2 equivalents until 2030. In addition, Germany has set itself the goal of achieving a 27% share of renewable energies in final energy consumption in the heating and cooling sector (in 2018:14.2%). A climate-neutral building stock is to be achieved by 2045.
In order to achieve these goals, the German government is using various instruments to support the use of efficient and climate-friendly technologies in the construction and renovation of buildings as well as for generating heat and cold. The Federal Funding for Efficient Buildings (BEG) promotes investments in higher efficiency compared to the legal standard, which is described in so-called efficiency house classes that set standards for low energy consumption. The legally required standard is defined in the Building Energy Act (GEG), which defines the requirements for the energy quality of buildings and the use of renewable energy in buildings.
The BEG is divided into three funding areas, EM (BEG EM) and the renovation or new construction of WG (BEG WG) and NWG (BEG NWG). From 01.01.2023, any measure can be applied for either a grant from the Federal Office of Economics and Export Control (BAFA) or a promotional loan from KfW for any measure.
Programming a new software, the BEG testing tool, including the required website and input forms, as well as the support necessary for the test phase and handover to the future BEG testing tool operator. The experience of KfW, which operates a similar tool, can be used for this. The calculation operations required for checking the building data entered are developed and made available by a service provider. In addition, an interface to the EEE software for uploading building data into the BEG inspection tool must be created in consultation with the software manufacturers. An existing database, which until then will be used to identify duplicates for fraud prevention in the BEG application process at KfW and BAFA, must be expanded to store the evidence and building data.