Energieeinsparverordnung
The Energieeinsparverordnung (German: [ʔɛnɐˈɡiːˈʔaɪ̯n.ʃpa:.fɐˈʔoˑɐ̯t.nʊŋ]; EnEV) is a regulation in Germany describing minimum requirements regarding energy use of new and renovated buildings. This legal ordinance was issued and repeatedly updated – The requirements were set to stricter standards in irregular intervals – by the Federal Government, which was authorized to do so by §1 of the Energy Conservation Act (Energieeinsparungsgesetz, EnEG).