Data have been obtained from Department of Energy Security and Net Zero Electricity data is divided between domestic and non-domestic categories according to the meter’s profile class. Domestic consumption is based on Non-Half Hourly (NHH) meters with profiles 1 and 2 (these are the standard domestic and economy 7 tariffs respectively). Non-domestic consumption is based on NHH meters with profiles 3 to 8 and all Half-Hourly meters. In addition, profile 1 and 2 meters are re-allocated to the non-domestic sector if their annual consumption is greater than 100,000 kWh; or if their annual consumption is greater than 50,000 kWh and the address information for meter suggests that it is non-domestic. There are some data quality issues documented in the Subnational methodology and guidance