With the Future Homes Standard set to be published in Autumn 2025, the Government are also introducing a new calculation methodology to support it.
To provide a smoother transition, it will initially run alongside SAP. However, the Home Energy Model aims to be a more advanced, modular and future-proofed methodology.
It is being introduced in order to better reflect the transition to operational net-zero buildings, which the Future Homes Standard will mandate.
The main features of the HEM include:
- Half-hourly simulations for more realistic modelling
- A flexible architecture for greater ease of use and continuous improvement
- A system based on International Standards
- An open-source methodology for complete transparency - changes to the model will be visible before they are formally implemented
- Cloud-based delivery model with a rebuilt Product Characteristics Database (PCDB)
It is hoped that, by continuing to use SAP 10 alongside the gradual rollout of the HEM, the transition will be seamless for both assessors and clients.
UKBC will keep our clients up to date with relevant changes, as and when they are introduced. In the meantime, get in touch with any current projects you require our support for.