Figures and underlying data for the report 'Smart Energy Research Lab: Energy tariffs, energy expenditure, and price elasticity of energy use in GB domestic buildings during the 2022/2023 heating season' which analysed:· how GB household energy tariffs changed in the heating season (defined here as October through to March inclusive) of 2022/2023 compared to the previous year,the effect of these price increases on energy usage in terms of price elasticities,how gas and electricity expenditures were affected,the effectiveness of measures adopted by households to changes their energy use in heating season 2022/2023 to reduce energy expenditure, andthe impact the Government’s Energy Price Guarantee (which set a maximum limit on energy unit costs) had on reducing energy expenditure.