Energy Performance Certificate (EPC)

Whenever you buy or rent a property it must be accompanied by an EPC – Energy Performance Certificates which is a report on the energy performance of the property. These calculations are carried our using the SAP, in a similar way that Be Energy Smart carries out your energy assessment using the information you enter online. They are carried out on site by a trained energy assessor, who can produce an EPC and give you recommendations.

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What is a DEA?

A Domestic Energy Assessor (DEA) produces EPC – Energy Performance Certificates for existing dwellings.
An EPC is a measure of the property’s energy efficiency, and includes recommendations for improvements. The DEA undertakes a short, non-invasive inspection of the property before producing the EPC using dedicated software.

Why is an EPC needed?

UK law requires an EPC to be produced every time a home is marketed for sale or rent. This is a law that stems from the EU Energy Performance of Buildings Directive. It says that EPCs can only be produced by “suitably qualified and/or accredited experts”.

For marketed sales, the EPC was included in the Home Information Pack (HIP). With the suspension of HIPs, the EPC – Energy Performance Certificates is still required and is now a standalone document. For rentals or Right to Buy sales, the EPC is made available by the landlord or estate agent. An estimated 1.5 million EPCs are needed every year.

In addition to these legal requirements, home owners who are looking to measure and increase the energy efficiency of their homes may choose to commission an EPC.

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FAQs

Are there any significant differences between the previous version of SAP and SAP 2009?
The most significant change is the move to calculating the energy demand on a monthly basis. The purpose of this is to provide more accurate assessments of energy use across the different seasons of the year. Similarly, the other changes are focused on improving the accuracy of dwelling assessments, particularly low energy dwellings.
Is SAP meant to be a design or compliance tool?
SAP is a compliance tool. However, there is no reason why designers could not use it to predict the performance of different dwelling designs. Given that the assessment methodology and calculation principles are fully set out in the SAP document then software suppliers could easily make a design version available.
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