Difference between revisions of "Home Insulation"
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== Histograms for the current and potential SAP ratings == | == Histograms for the current and potential SAP ratings == | ||
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| + | The following two charts show the distribution of SAP ratings for the 92 houses | ||
Revision as of 13:00, 2 December 2019
Case study - 92 properties in SK31
Energy performance certificates (EPC) are a legal requirement when properties are built, sold or rented in the UK and the information is in the public domain. FLUKE has made a case study of 92 properties in the English East Midlands, ordnance survey grid area SK31. The housing stock consisted of a mixture older Victorian and early 20th century terraced housing and some more modern, estate built houses. (The data are anonymised and the grid area covers 100 square kilometres; this should provide adequate data protection to any individual householder). An EPC is issued following a detailed survey of the property and contains much useful information. This case study mainly focusses on the Standard Assessment Procedure (SAP) scores for the current and potential energy efficiency ratings. The latter score indicates the potential improvement in efficiency that might be achieved, if all the energy-conserving measures including insulation, low energy lighting, solar water heating etc. recommended in the report were indeed carried out. The comparison between these 'before' and 'after' SAP rating figures provides a simple method for assessing the potential improvement achievable if the entire housing stock were renovated to all the recommended measures in the EPC.
Histograms for the current and potential SAP ratings
The following two charts show the distribution of SAP ratings for the 92 houses