What is SAP?
SAP 10 (Standard Assessment Procedure) is the latest version of the UK Government’s official method for calculating the energy performance of residential buildings.
It calculates this by assessing key factors of the home, such as heating, hot water, insulation, ventilation, and lighting, all in order to produce an energy rating.
These ratings are essential for compliance with Building Regulations and for issuing EPCs (Energy Performance Certificates), a legal requirement when owning, selling or renting a home.
If your home is not energy efficient, you will have a low SAP score and are likely to have higher housing costs.
Higher SAP scores mean greater energy efficiency, which translates to lower running costs and stronger sustainability credentials.
SAP Vs RdSAP
RdSAP stands for Reduced Data Standard Assessment Procedure and is a simplified version of the SAP (Standard Assessment Procedure).
The core difference:
- SAP is an extensive report requiring vast, comprehensive building data. Commonly used for new home builds.
- RdSAP is a less invasive report that can be carried out quickly and is more commonly used for existing buildings.
How SAP Can Affect You
For those involved in building homes, SAP compliance is critical.
Failing to meet SAP targets can delay approvals or even trigger costly design changes. As regulations become stricter, especially under the Future Homes Standard*, every design choice matters – including the efficiency of domestic hot water use. Even elements like showers can significantly impact your SAP rating.
*The Future Homes Standard is a UK government method set to be introduced in 2025 to help the country achieve net zero by 2050. Its goal is to enhance energy efficiency and reduce carbon emissions in all UK households.
How Kelda Can Help You with SAP
Kelda’s innovative Air-Powered™ technology is engineered to use significantly less water and hot water energy than conventional shower systems without compromising user experience.
Because SAP 10 places greater emphasis on hot water demand and energy use, Kelda can offer a simple, effective way to lower Dwelling Emission Rates (DER), making our showers an ideal solution for improving compliance and future-proofing your developments.
In Summary:
- SAP 10 is the UK Government’s official method for calculating the energy performance of residential buildings
- A low SAP score can lead to high housing costs and even lead to the rejection of building plans
- Kelda Showers reduce hot water energy usage in line with SAP 10 regulations and can boost your SAP score
- Our showers are suitable for sustainable developments and future-ready homes
Want to learn more about how Kelda can help you improve your SAP score?
Related Links
Kelda Showers are now officially recognised within RdSAP
Find Out More
Discover our Residential, RdSAP compliant range
Find Out More