The UK Government has confirmed that both the current SAP 10.3 and the new Home Energy Model (HEM) will be used to demonstrate compliance with the Future Homes Standard, set to be introduced in 2025.
This dual-methodology approach provides a transitional period where both systems will be valid for assessing the energy performance of new homes. The move is designed to give developers and energy professionals time to adapt to the more advanced Home Energy Model, which is expected to eventually replace SAP.
SAP will be updated to include a new notional specification and carbon factors to establish the revised FHS compliance targets.
The HEM introduces a more dynamic and data-rich method of modelling energy use, reflecting modern innovations such as smart controls and real-time consumption data. However, by retaining SAP 10.3 during the transition, the government aims to ensure stability and continuity across the industry.
At Element Sustainability, we welcome this phased approach. It offers clarity for our clients and the wider sector, allowing projects in development to move forward with confidence. Our team is already working with both methodologies and is well positioned to support developers through this shift.
If you’d like advice on how the Future Homes Standard may impact your project, don’t hesitate to get in touch with our consultants.