2. 2013 SHCS Key Findings: http://www.gov.scot/Publications/2014/12/6903 and Methodology Notes: http://www.gov.scot/Topics/Statistics/SHCS/Downloads/MethodologyNotes2013
3. 2014 SHCS Key Findings: http://www.gov.scot/Publications/2015/12/8460 and Methodology Notes: www.gov.scot/Topics/Statistics/SHCS/Downloads/Methodology2014
4. Methodology Notes 2014: www.gov.scot/Topics/Statistics/SHCS/Downloads/Methodology2014
5. Gas grid coverage is determined on the basis of the distance of the dwelling from a low / medium / intermediate pressure gas distribution pipe. Based on the usual maximum distance for standard domestic connection (63 m), dwellings are classified as being "on" or "off" the grid. This does not reflect whether the dwelling is actually connected to the grid. Further details on the method for estimating distance to the gas grid are available in section 7.8.4 of this report and in SHCS Methodology Notes available at: http://www.gov.scot/Topics/Statistics/SHCS/Downloads
6. Available at http://www.gov.scot/Publications/2017/09/9979/downloads
7. Housing Statistics for Scotland http://www.gov.scot/Topics/Statistics/Browse/Housing-Regeneration/HSfS/KeyInfoTables
8. SHCS - Methodology Notes 2016 available at: http://www.gov.scot/Topics/Statistics/SHCS/Downloads
9. EST: Roof and Loft Insulation http://www.energysavingtrust.org.uk/scotland/Insulation/ Roof-and-loft-insulation EST: Wall Insulation http://www.energysavingtrust.org.uk/domestic/cavity-wall and http://www.energysavingtrust.org.uk/domestic/solid-wall
10. CERT-Summary-Report-Q19-by-English-Regions-Scotland-Wales, HEED dB, Nov 2014. Access available through Energy Saving Trust.
11. Scottish Government analysis of data provided by Ofgem of measures installed under ECO. Provisional figures.
12. Dwellings without loft spaces are excluded.
13. Dwellings built post 1982 are presumed insulated when built
14. CERT-Summary-Report-Q19-by-English-Regions-Scotland-Wales, HEED dB, Nov 2014. Access available through Energy Saving Trust.
15. Scottish Government analysis of data provided by Ofgem of measures installed under ECO. Provisional figures.
16. This is the number of SWI measures delivered under ECO.
17. Dwellings built post 1982 are presumed insulated when built
18. Dwellings built post 1982 are presumed insulated when built
19. EU "Boiler Efficiency Directive" http://www.icqc.co.uk/userfiles/File/Directive_92_42.pdf
20. Domestic Building Services Compliance Guide for Scotland http://www.gov.scot/Resource/0046/00460094.pdf
21. This design has higher running efficiencies; a portion of the heat that would be lost through vented water vapour is recovered through condensation in a heat exchanger.
22. For existing dwellings, there are occasions where it may not be practical to install a condensing boiler. The ' Condensing Boiler Installation Assessment Procedure Guide' offers further guidance in this area. Where a non-condensing boiler is installed this may results in a boiler with poorer efficiency than that of a newly installed condensing boiler of the same fuel type.
23. An example of the current EPC format can be seen at http://www.gov.scot/Topics/Built-Environment/Building/Building-standards/enerperfor/epcguidance
24. BRE: The Government's Standard Assessment Procedure for Energy Rating of Dwellings, http://www.bre.co.uk/filelibrary/SAP/2009/SAP-2009_9-90.pdf
28. SHCS - Methodology Notes 2013 available at http://www.gov.scot/Topics/Statistics/SHCS/Downloads/MethodologyNotes2013
29. Local and Regional CO 2 Emissions Estimates, BEIS: https://www.gov.uk/government/statistics/uk-local-authority-and-regional-carbon-dioxide-emissions-national-statistics-2005-2015
32. SHCS Methodology Notes 2014 available at www.gov.scot/Topics/Statistics/SHCS/Downloads/Methodology2014
33. Scottish Fuel Poverty Statement 2002, http://www.gov.scot/Resource/Doc/46951/0031675.pdf
34. Scottish Government's Fuel Poverty Policy, http://www.gov.scot/Topics/Built-Environment/Housing/warmhomes/fuelpoverty
35. Vulnerable households are those where at least one resident is aged 60 or over, or suffers long term sickness or disability.
36. SHCS - Methodology Notes 2014 available at www.gov.scot/Topics/Statistics/SHCS/Downloads/Methodology2014
37. Eligible households receive a £140 discount on their electricity bills: https://www.gov.uk/the-warm-home-discount-scheme. Households qualify if they receive the guarantee credit element of pension credit (core group) or they are on a low income and meet their energy supplier's criteria (broader group).
39. Allowing for the impact of the new fuel price methodology which contributes to the slower rate of growth in the estimated level of fuel poverty between 2012 and 2013 shown in Figure 20.
40. There are several discontinuities in the methodology for estimating fuel poverty reflected in Figure 20 which may affect this comparison: the underlying energy model changed in 2010 and 2014, and the method of sourcing price information changed from 2013.
41. BEIS Quarterly Energy Prices, Table 2.1.3, https://www.gov.uk/government/statistical-data-sets/monthly-domestic-energy-price-stastics
42. This captures also other sources of sampling variability between the 2015 and 2016 survey which may affect the energy demand in the sample of dwellings included in the SHCS.
43. The sequence of steps in this method affects the size of the estimated impact. Where factors operate in the same direction any potential joined effect will be attributed to those assessed first. Because fuel price demonstrated the most dramatic change between 2015 and 2016, it is appropriate to assess its impact first.
45. For more information see letter and notes at: http://www.gov.scot/Publications/2004/02/18860/32772
46. Full guidance available at http://www.gov.scot/Topics/Built-Environment/Housing/16342/shqs
47. There is an exception to this principle with respect to 14 secondary building elements where failure on at least two is required for a building to be considered not meeting the standard overall. The full guidance is available at http://www.gov.scot/Topics/Built-Environment/Housing/16342/shqs
49. Housing (Overcrowding) Bill 2003, section 2: http://www.publications.parliament.uk/pa/cm200203/cmbills/046/2003046.pdf
50. Scottish Household Survey Website: http://www.gov.scot/Topics/Statistics/16002
51. NRS: Estimates of Households and Dwellings in Scotland, 2016, https://www.nrscotland.gov.uk/files//statistics/household-estimates/2016/house-est-16.pdf
52. An error in compiling this table in previous publications was identified. It relates to the 2012, 2013 and 2014 surveys. The error has been corrected in the current publication.
54. BRE, "The Government's Standard Assessment Procedure for Energy Rating of Dwellings": http://www.bre.co.uk/filelibrary/SAP/2009/SAP-2009_9-90.pdf
55. BRE, "The Government's Standard Assessment Procedure for Energy Rating of Dwellings, 2012 Edition", Table 12: http://www.bre.co.uk/filelibrary/SAP/2012/SAP-2012_9-92.pdf
56. For more details see SHCS Methodology Notes 2014 www.gov.scot/Topics/Statistics/SHCS/Downloads/Methodology2014
57. SHCS - Methodology Notes 2013 available at http://www.gov.scot/Topics/Statistics/SHCS/Downloads/MethodologyNotes2013
59. More details can be found at: http://www.gov.scot/Topics/Statistics/About/Methodology/UrbanRuralClassification
60. http://www.gov.scot/Topics/Statistics/16002/PublicationQuestionnaire , question ht14
61. Change Works: Guide to insulating Hard to Treat Cavities ( HTTC) http://www.changeworks.org.uk/sites/default/files/Guide_to_Insulating_Hard_to_Treat_Cavities_2014.pdf
62. DECC: Review of number of cavity walls in Great Britain https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/48433/5620-review-of-the-number-of-cavity-walls-in-great-brit.pdf
63. This element has been incorrectly described in all previous SHCS reports as 'party walls'
64. Housing (Overcrowding) Bill 2003, section 2: http://www.publications.parliament.uk/pa/cm200203/cmbills/046/2003046.pdf Retrieved: 19/11/15
66. A full definition and description of Local Authority duties as regards the Tolerable Standard can be found at: http://www.gov.scot/Publications/2009/03/25154751/3 Retrieved: 19/11/15
67. These amendments are published at: http://www.legislation.gov.uk/asp/2006/1/section/11 Retrieved: 19/11/15
68. Full time series are provided at http://www.gov.scot/Resource/0044/00445920.xlsx Retrieved: 19/11/15
69. For more information see letter and notes at: http://www.gov.scot/Publications/2004/02/18860/32772
71. A summary list of elements by higher level criteria is available here: http://www.gov.scot/Resource/Doc/1125/0114870.pdf Retrieved: 19/11/15
72. This relates to the SAP and NHER thresholds for element 35 and the thickness of hot water tank insulation for element 33.