Home Energy Model

Closed 27 Mar 2024

Opened 13 Dec 2023


The Standard Assessment Procedure (SAP) is the methodology currently used by the government to estimate the energy performance of homes across the United Kingdom. It is of critical importance to the delivery of our housing and climate change objectives.

The Home Energy Model will replace the SAP for the energy rating of dwellings. It is still under development, and we will implement the first version alongside the Future Homes Standard in 2025.

We are publishing this consultation on the Home Energy Model in order to:

  • summarise the development and validation work undertaken to date; and 
  • facilitate feedback to enable further model development in advance of its introduction.

We are publishing this consultation while the Home Energy Model is still at a formative stage to enable industry to participate in the ongoing development process. This consultation will be of interest across the built environment sector.

You can read the consultation document on the GOV.UK page.

Update: 1 March 2024

We have extended the consultation closing date to 27 March 2024 (from 6 March).


  • Low carbon technologies


  • Security and resilience
  • Renewable energy
  • Energy efficiency
  • Housing
  • Electricity