Combined Heat & Power

Demand Side Services

Energy Efficiency

Heat Networks

SAP consultation response

17 November 2017

On 17 November, Government released a response to the consultation published in November last year which sought to make changes to the Standard Assessment Procedure (SAP). 

SAP is the tool used to assess whether the energy use and carbon emissions of new homes comply with the target set in the Building Regulations in England. The simpler version of SAP, RdSAP, also subject to the changes set out in the SAP consultation response, underpins policy delivery for the Renewable Heat Incentive scheme and other Government schemes.

The new SAP methodology is expected to be published in 2018, but the publication will not yet bring the changes into force. This will be subject to consultation on changes to the Building Regulations.

The SAP consultation response document, which can be found on government website here, sets out changes in district heating and carbon factors for combined heat and power.

Government is considering proposals:

- to use the marginal emission factor in SAP for CHP (and solar photovoltaic),

- to lower the in-use factor for CP1 compliant heat networks.

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