Heat in buildings strategy: business and regulatory impact assessment

This business and regulatory impact assessment (BRIA) accompanies our Heat in Buildings Strategy.


1. National Performance Framework

2. Housing to 2040

3. Energy strategy: position statement

4. Securing a green recovery on a path to net zero: climate change plan 2018–2032 – update

5. Scottish house condition survey: 2019 key findings - (

6. An estimated 34,000 homes are connected to heat networks, however these are predominately fuelled by gas and not considered renewable/zero emissions.

7. Source: Unpublished analysis by the Energy Saving Trust (EST)

8. Scottish Greenhouse Gas statistics: 1990-2019 - (

9. In practice, this number will depend on the sequencing of non-domestic conversion due to the significant variation in size and energy consumption of our non-domestic buildings.

10. Renewable-Heat-in-Scotland-2019_new.pdf (

11. Fuel Poverty (Targets, Definition and Strategy) (Scotland) Act 2019

12. A household is defined as being in fuel poverty if, in order to maintain a satisfactory heating regime, total fuel costs necessary for the home are more than 10% of the household's adjusted net income (i.e. after housing costs), and if after deducting those fuel costs, benefits received for a care need or disability and childcare costs, the household's remaining adjusted net income is insufficient to maintain an acceptable standard of living. The remaining adjusted net income must be at least 90% of the UK Minimum Income Standard to be considered an acceptable standard of living with an additional amount added for households in remote rural, remote small town and island areas.

13. The data presented is a best estimate based on the new fuel poverty definition as at Stage 2 of the Bill process. The first official measurement of fuel poverty, fully compatible with all elements of the Act, requires additional data to be collected and the production of a new Minimum Income Standard for remote rural, remote small town and island areas. 2020 Scottish House Condition Survey fieldwork was suspended on March 17th due to the effects of COVID-19 and the restrictions around travel. The 2021 physical survey is being carried out by an external-only inspection (carried out only in COVID protection levels 0,1 and 2), supplemented with alternative sources of data and the householder providing information to surveyors via telephone. For more details see Coronavirus (COVID-19): Impact on Scottish Household Survey and Scottish House Condition Survey fieldwork in 2020 and 2021. Therefore it may be late 2022 / early 2023 before fuel poverty estimates are produced, fully accounting for all elements of the new definition.

14. Based on SAP 2009.

15. Based on SAP 2012, RdSAP v9.93.

16. Scotland's non-domestic energy efficiency baseline: report - (

17. Net Zero: A Consumer Perspective - Energy Systems Catapult

18. Heat in buildings strategy - achieving net zero emissions: consultation -Published responses

19. Heat in Buildings Strategy - achieving net zero emissions in Scotland's buildings - (

20. Low carbon and renewable energy economy estimates - Office for National Statistics (

21. Imperial College Centre for Energy Policy and Technology 2016 "Comparing the impacts and costs of transitions in heat infrastructure"

22. Energy Research Partnership 2017 "Transition to Low Carbon Heat"

23. Development of trajectories for residential heat decarbonisation to inform the Sixth Carbon Budget (Element Energy)

24. See Table 22 in Scottish house condition survey: 2019 key findings - (

25. Heat Networks (Scotland) Bill - Business and Regulatory Impact Assessment

26. This is the smoothed cost over the technology lifetime for an installation in a given year, incorporating assumptions on capex, opex, fuel costs and efficiencies of each technology.



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