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The Federal Institute for Research on Building, Urban Affairs and Spatial Development ("Bundesinstitut für Bau-, Stadt- und Raumforschung - BBSR") advises the responsible federal ministries on technical and scientific questions about energy saving and continuously takes part in the amendment of regulations and standards concerning energy saving.
On the other hand, the legal enforcement of the energy saving legislation in accordance with the constitution is the exclusive responsibility of the local authorities nominated by the federal states ("Bundesländer"); normally these are the local building authorities. Only they are in the position to decide about the application of the legal regulations in individual cases.

For certain issues only indirectly related to the Energy Saving Ordinance (EnEV) the following contacts should be addressed:

Issues

  • concerning EnEV calculation software:
    your software provider
  • concerning the BBSR printing application:
    LMIS AG (site in German only) [Link]
  • concerning the registration and control of Energy Certificates:
    Deutsches Institut für Bautechnik (DIBt) (site in German only) [Link]
  • concerning Energy Certification in general:
    German Energy Agency (dena) (site in German only) [Link]
  • concerning regulations for KfW funding programs:
    KfW new building (site in German only) [Link]
    KfW existing buildings (site in German only) [Link]
  • concerning the Renewable Energies Heat Act (EEWärmeG):
    Federal Ministry of Economic Affairs and Energy (site in German only) [Link]
  • provisions within the calculation standards:DIN V 18599, DIN V 4108-6, DIN 4108-2, DIN EN ISO 6946 and further standards addressing construction issues:
    DIN Standards Committee "Building and civil engineering" [Link]
    DIN V 4701-10, DIN EN 13779, DIN EN 13053 and further standards addressing issues of technical building systems:
    DIN Standards Committee "Heating and Ventilation Technology" [Link]


BBSR offers a clearing service for professionals dealing with the EnEV. Our colleagues at the helpdesk are availiable during consultation hours:

EnEV Info-Team
Phone +49 228 99401-2244
Consultation hours:
Tuesday, Thursday and Friday from 09:30 to 11:00
and
Monday and Wednesday from 13:00 to 14:30

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