Home Buying, Selling and Energy Performance Division leads on all aspects of Energy Performance Certificate policy. They are responsible for the development and distribution of three software packages used to produce Energy Performance Certificates. These are Standard Assessment Procedure (SAP) for new build dwellings, Reduced data Standard Assessment Procedure (RdSAP) for existing dwellings and Simplified Building Energy Model (SBEM) for non-dwellings.
Only software that has been validated and approved by the Department can be used to produce Energy Performance Certificates (EPCs). The standard software produced by the Department is continually monitored and upgraded on a regular basis. Any EPC produced by an accredited energy assessor using approved software is considered to be valid.