While the EPBD sets the framework definition of NZEBs, its detailed application in practice (e.g. what is a ‘very high energy performance’ and what would be the recommended significant contribution of ‘energy from renewable sources’) is the responsibility of the Member States when they transpose Article 9 of the Directive into their national legal systems.
Le règlement délégué (UE) no 244/2012 de la Commission [3] et les orientations qui l'accompagnent [4] fournissent des indications utiles sur le calcul de la performance énergétique d'un bâtiment [5].