Description of national calculation methodology, following the national annexes of the overarching standards ISO 52000-1, 52003-1, 52010-1, 52016-1 and 52018-1 developed under mandate M/480 given to the European Committee for Standardisation (CEN).

These National Annex/ Datasheets have been published by the Sustainable Energy Authority of Ireland (SEAI), separately for dwellings and for buildings other than dwellings .


More specifical links to the national calculation methodology:

Detailed information relating to Ireland’s EPC methodologies (called DEAP for residential and NEAP for non-residential buildings) is available at the SEAI website here.



The views expressed in resources and linked websites have not been adopted or approved by the EPB Center and should not be relied upon as a statement of the EPB Center.

The EPB Center is not responsible for the content of resources or any site linked to or from this website. Any external links are only for the users' convenience and the EPB Center does not endorse or warrant the accuracy or validity of materials posted on any external site.


This webpage has been published: March 2021