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Code for Sustainable Homes: scoring well in the energy section

September 23rd, 2022

The Code for Sustainable Homes is a sustainability assessment tool for new built housing. The tool is developed by the UK government and is used to set minimum sustainability standards in government sponsored residential development. In addition to this many local planning authorities are using this tool to set benchmarks for private and commercial residential development projects as well.

The Code for Sustainable Homes considers a number of topics in nine different categories. Of these categories the one on energy use can be considered as the most important category: it accounts for more than 35% of the total score. Scoring well in the energy section is therefore essential to gain a good Code for Sustainable Homes rating. In this article I review the credit requirements and discuss how feasible it is to meet each these.

Dwelling emissions rate
The first issue in the energy category regards the energy performance of the building. This is considered in relation to the national building regulations. The national building regulations set minimum requirements for the energy efficiency of a building in terms of carbon dioxide emissions.

The dwelling emissions rate issue is the biggest contributor to a good score in the energy category. A total of 27 credits are available in the energy section and there are a maxi,Guest Postingmum of 15 credits available in the first issue. The minimum improvement over the building regulations that is awarded with one credit is a 10% improvement. The maximum of 15 credits is available for what is referred to as a “Zero Carbon Home”. In addition to reduce the regulated carbon emissions from the building with 100% over the requirements in the building regulations a number of additional requirements are put on a building to qualify for the title Zero Carbon Home. This includes a minimum standard for the Heat Loss Parameter and a requirement to prevent carbon emissions from energy used for appliances in the building. Clearly the higher reductions of carbon emissions can only be achieved when using energy generated though the use of low or zero carbon technologies. Issue 7 of the energy categories deals with low and zero carbon technologies and I will discuss this in further detail in that section.