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The Energy Saving Act (EnEG) 2005
(validity period: 09. September 2005 bis 01. April 2009)

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The Energy Saving Act ("Energieeinsparungsgesetz" (EnEG)) was implemented in 1976 to improve the balance of trade, more precisely to reduce the dependency of the Federal Republic of Germany on imported energy carriers.


The act does not contain any regulations directly affecting the citizen but empowers the Federal Government to legislate ordinances. Thereby, the approval of the “Bundesrat” (Parliament representing the German Federal States) is necessary. Since then ordinances that pose energetic requirements on buildings and their appliances can be legislated based on the EnEG.
In 1980, the Act was amended for the first time.
In 2005 it was amended again based on the premise that for the implementation of the European Directive on Energy Performance of Buildings (2002/91/EG) into German legislation, some legal foundations had to be changed (Zweites Gesetz zur Änderung des Energieeinsparungsgesetzes vom 1. September 2005. BGBl I S 2681)
Changed or supplemented in particular were

  • in § 2 the basis of requirements on lighting system
  • in § 3 the basis for recurring system inspections
  • in § 5 – clarifying – the basis for the requirement level “general energy performance”
  • with § 5a a basis for the obligations concerning the issuance and use of energy certificates in the building stock, not affected by the general restriction of economic feasibility
  • in § 8 an enhanced basis defining regulatory offenses and civil penalties, now also including thermal insulation

(only availiable in German)

The act in this version was valid from 8 September 2005 to 1 April 2009.
In this period the following ordinances have been enacted based on the EnEG 2005:

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