Sub-national consumption statistics Methodology and guidance booklet December 2013 © Crown copyright 2013 You may re-use this information (not including logos) free of charge in any format or medium, under the terms of the Open Government Licence. To view this licence, visit www.nationalarchives.gov.uk/doc/open-government-licence/ or write to the Information Policy Team, The National Archives, Kew, London TW9 4DU, or email: [email protected]. Any enquiries regarding this publication should be sent to us at [email protected]. This document is also available from our website at www.gov.uk/decc. 2 Methodology and guidance booklet Statistician Responsible: Mary Gregory Prepared by: Sabena Khan Sam Stadnyk Sub-national consumption statistics [email protected] 0300 068 5037 3 Contents 1 Introduction ....................................................................................................................... 7 1.1 Summary of datasets .............................................................................................. 8 1.2 Statistical Geographies ......................................................................................... 11 1.3 Users and uses of the data ................................................................................... 12 1.4 Revisions policy .................................................................................................... 13 2 Gas consumption statistics .............................................................................................. 14 2.1 Overview (2005 – 2012 datasets) ......................................................................... 14 2.1.1 Coverage .................................................................................................. 14 2.1.2 Sectors ..................................................................................................... 15 2.1.3 Data suppliers .......................................................................................... 15 2.2 Methodology ......................................................................................................... 16 2.3 Comparability ........................................................................................................ 17 2.3.1 Comparison to sub-national electricity data .............................................. 17 2.3.2 Comparison to other DECC publications .................................................. 18 2.4 Pre-2005 datasets ................................................................................................. 18 2.5 Data below local authority level (MSOA/IGZ and LSOA) ...................................... 19 2.6 Further information ................................................................................................ 20 3 Electricity consumption statistics ..................................................................................... 21 3.1 Overview (2005 – 2011 datasets) ......................................................................... 21 3.1.1 Coverage of data ...................................................................................... 21 3.1.2 Sectors ..................................................................................................... 22 3.1.3 Data limitations ......................................................................................... 22 3.2 Methodology ......................................................................................................... 23 3.3 Comparability ........................................................................................................ 25 3.3.1 Comparison to sub-national electricity data .............................................. 25 3.3.2 Comparison to DUKES and ECUK ........................................................... 26 3.4 Pre-2005 datasets ................................................................................................. 26 3.5 Sub-regional level data (MSOA/IGZ and LSOA) ................................................... 28 4 3.6 Further information ................................................................................................ 28 4 Sub-regional gas and electricity consumption statistics (MSOA/IGZ and LSOA) ............ 29 4.1 Introduction ........................................................................................................... 29 4.1.1 Purpose .................................................................................................... 29 4.1.2 Statistical geographies ............................................................................. 30 4.2 Main data features (2011 data) ............................................................................. 30 4.2.1 Overview .................................................................................................. 30 4.2.2 MSOA/IGZ and LSOA .............................................................................. 31 4.2.3 Unallocated consumption ......................................................................... 31 4.2.4 Merged consumption ................................................................................ 31 4.2.5 Socio-economic data ................................................................................ 32 4.3 Data limitations ..................................................................................................... 32 4.4 History of the data collection process ................................................................... 32 4.5 Previous datasets ................................................................................................. 33 4.5.1 2008 – 2009 data (MSOA/IGZ and LSOA) ............................................... 33 4.5.2 2005 – 2007 data (MSOA/IGZ only) ......................................................... 33 4.5.3 2004 data – MSOA electricity only ........................................................... 35 4.5.4 Limitations ................................................................................................ 36 5 Northern Ireland domestic electricity consumption statistics ........................................... 37 5.1 Overview (2008 – 2011 data) ................................................................................ 37 5.2 Background and methodology .............................................................................. 38 5.3 Comparison to Great Britain electricity consumption data .................................... 38 6 Northern Ireland non-domestic electricity consumption statistics .................................... 39 6.1 Overview (2009 – 2011 data) ................................................................................ 39 6.1.1 Coverage of data ...................................................................................... 39 6.1.2 Data limitations ......................................................................................... 40 6.2 Background and methodology .............................................................................. 40 6.3 Comparability to Great Britain electricity consumption data .................................. 40 7 Road transport fuel consumption statistics ...................................................................... 41 7.1 Overview (2005 – 2011 data) ................................................................................ 41 7.1.1 Coverage of data ...................................................................................... 41 7.1.2 Data limitations ......................................................................................... 42 7.2 Methodology ......................................................................................................... 42 7.3 Comparison to DUKES and ECUK ....................................................................... 43 5 7.4 Methodological changes impacting data comparability over time ......................... 44 8 Residual fuel consumption statistics ................................................................................ 46 8.1 Overview (2005 – 2011 data) ................................................................................ 46 8.2 Methodology ......................................................................................................... 47 8.3 Comparison to DUKES and ECUK ....................................................................... 48 8.4 Key methodological changes over time ................................................................ 49 8.5 Further information ................................................................................................ 50 9 Total final energy consumption statistics ......................................................................... 51 9.1 Overview (2005 – 2011 data) ................................................................................ 51 9.2 Methodology ......................................................................................................... 52 9.3 Data limitations and interpretation......................................................................... 55 9.4 Data accuracy ....................................................................................................... 56 9.5 Further information ................................................................................................ 56 Annexes ................................................................................................................................