Energy Performance of Buildings (Scotland) Regulations 2025: stock model research
Research to inform the thresholds of an A-G band scale for the forthcoming update to the Heat Retention Rating. We have a commitment to maintain equivalence between the SAP band C and a ‘Good’ Heat Retention Rating performance, i.e. an HRR band of C or better.
Footnotes
1 SAP rating is an energy cost rating within the SAP methodology as defined in The Government’s Standard Assessment Procedure for Energy Rating of Dwellings 10.2, BRE 10/06/2025
2 The Heat Retention Rating (kWh/m2/yr) is a measure of the space conditioning demand on heating and cooling systems which is required to maintain a heating set point of 21°C for main living areas and 20°C for the remainder of the dwelling, and a cooling set point of 24°C.
3 Scottish House Condition Survey - gov.scot
4 Superseded by RdSAP 9.94 on 22nd September 2019
Contact
Email: EPCenquiries@gov.scot