GEG / EnEV calculation aids and info

The verification procedure for residential buildings in accordance with the Building Energy Act 2023 is available as a calculation aid based on Microsoft Excel. The tool is based on the calculation procedures from DIN V 4108-6 and DIN V 4701-10.

With the version number 4, the transition from the GEG 2020 to the GEG 2023 was implemented with the calculation sheet in January 2023. The main changes compared to the version for GEG 2023 can be summarized as follows:

• Tightening of the QP new construction _requirements from QP_,reference * 0.75 to QP_,reference * 0.55

• Elimination of the "simplified procedure" for the crediting of electricity from renewable sources (GEG § 23)

• Interface for the creation/registration of energy certificates according to GEG (print application version 4.0; installation is required to use this function)

Information on the control file scheme for energy certificates can be found at https://www.dibt.de/de/wir-bieten/geg-registrierstelle.

The verification procedure for residential buildings in accordance with the Building Energy Act 2020 is available as a calculation aid based on Microsoft Excel. The tool is based on the calculation methods from DIN V 4108-6 and DIN V 4701-10.

With version number 3, the transition from the  EnEV to the GEG was implemented with the calculation sheet in July 2021. The main changes compared to the EnEV 2016 version can be summarized as follows:

• Calculation and reporting of greenhouse gas emissions.

• Thermal bridge correction value according to DIN 4108, Supplement 2, Category B

• Crediting of electricity from renewable energies (GEG § 23)
• Information on the use of renewable energies for heating and cooling (GEG Section 4)
• Presentation of_CO2 equivalents for sample plants
• Interface for the creation/registration of energy certificates according to GEG (print application version 3.0; installation is required to use this function)

Information on the control file scheme for energy certificates can be found at https://www.dibt.de/de/wir-bieten/geg-registrierstelle.

For the calculation method for residential buildings according to the Energy Saving Ordinance 2014/2016 (DIN V 4108-6/DIN V 4701-10, reference building method), a calculation aid based on Microsoft Excel is available here (monthly balance method, reference building method).

New version 2.xx:

• completely revised version
• new layout
• detailed instructions
• saving/loading projects
• area calculation
• U-value calculation
• Display of monthly values

As of version 2.08, the control file schema(https://www.dibt.de/de/wir-bieten/geg-registrierstelle), which has been changed since June 2016 and is to be used exclusively since July 1, 2017, is taken into account.

For the calculation method for residential buildings according to the Energy Saving Ordinance 2009 (DIN V 4108-6/DIN V 4701-10, reference building method), a calculation aid based on Microsoft Excel is available here.