Abstract: Understanding the elasticity of households’ demands for different energy types is at the heart of many energy-environment-economy analyses. Consequently, having recent and reliable estimates of the household elasticity of demand is critical to the reliability of the conclusions of these analyses. This is especially true of regional or sub-national analyses, where there can be significant variation in the behaviour of sub-national groups, for instance as a result of local preferences or geographic factors. Given the increasing use of regional energy-environment-economy modelling for policy evaluation, particularly in the UK, the need for up-to-date research on regional variations in how households respond to changes in energy prices is essential. This paper presents sub-national estimates of the household elasticities of demand for electricity and gas produced using a Quasi-Almost Ideal Demand System and data from the UK Living Cost and Food survey.