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Worth knowing
ZWP Ingenieur-AG
Planning and monitoring in the areas of building services and
facility-related environmental protection; facility management

Sustainability-oriented construction

Energy certificates EnEV


EnEV and energy certificate

The Energy Saving Ordinance (Energieeinsparverordnung; EnEV) is one of Germany's key laws for the construction sector. On a legal basis of empowerment via the Act on Energy Saving (Energieeinsparungsgesetz; EnEG), it sets forth standard, binding energy-efficiency requirements for buildings. It applies to residential buildings, office buildings and plants / production facilities, etc..

The energy certificate (Energieausweis) for a given building is a document that contains an assessment of the building's energy efficiency. In Germany, all details of the principles behind energy certificates, and of their issue and use, are set forth by the Energy Saving Ordinance (EnEV); in Austria, such details are specified by an Act on submission of energy certificates (Energieausweis-Vorlage-Gesetz; EAVG). The two laws are designed to transpose the EU's Energy Performance of Buildings Directive (EPBD), on overall energy efficiency of buildings, into national law.


ZWP Ingenieur-AG is a certified energy consultant

With years of experience as an independent consultant, we stand ready to provide detailed analyses of the energy efficiency and cost-effectiveness of your construction projects. In such analyses, we focus especially on optimizing energy costs. Since such areas overlap with those pertaining to the energy certificate, we began offering issuance of the certificate, as an additional service, when the energy certificate was first introduced.


The EU's Energy Performance of Buildings Directive (EPBD) requires all EU countries to introduce energy certificates that must be presented upon sale or lease of buildings (including existing buildings).


Usefulness of the energy certificate:

The overall purpose behind the energy-certificate system is to enhance market transparency in the building sector. In each case, an energy certificate does the following:

  • Provides information about a building's energy performance, including the performance of its technical systems.
  • Shows the building's energy consumption levels and potential for reducing energy costs.
  • Identifies the building's weak areas in this regard, and lists any modernization measures that have been carried out.
  • Lists the building's energy efficiency, as a quality feature (building classification).

read more: www.dgnb.de


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