The Home Energy Model (HEM) replaces SAP to assess the new builds designs against the Future Homes Standard from May 2025, and RdSAP for existing home EPCs from 2026.
HEM is 1440x higher resolution than SAP, RdSAP or PHPP, for more accurate analysis of home energy systems. This makes HEM useful to identify better options to create more energy efficient, healthier homes.
We provide access to the Home Energy Model with use of our web application, training from expert modellers, technical support, model reviews, and online documentation.