Delivering net zero for Scotland's buildings - Heat in Buildings Bill: consultation

A consultation on proposals to make new laws around the energy efficiency of our homes and buildings and the way we heat those buildings.


1. EST Taylor Mackenzie research

2. Just Transition Commission

3. The Climate Change (Emissions Reduction Targets) (Scotland) Act 2019 requires the Scottish Ministers to ensure that Scotland reaches net zero by 2045, and to meet interim emissions reductions targets of 75% by 2030 and 90% by 2040.

4. Such as an electric boiler which produces hot water that is distributed around the property, heating radiators and for use from hot taps and showers.

5. The Building (Scotland) Amendment Regulations 2023 ( defines a direct emission heating system at Regulation 3

6. “Bioenergy” heating systems, e.g. those which use wood chips or other types of biomass or bioliquid (such as hydrotreated vegetable oil) produce emissions when used to heat our homes. There will be circumstances where these remain permissible. Some ‘synthetic’ fuels also have greenhouse gas emissions associated with their combustion.

7. A ‘good’ level of energy efficiency is generally agreed to be Band C on an Energy Performance Certificate (EPC). Energy Performance Certificate Reform Consultation 2023 ( consulted on reforms to the ratings used in EPCs to ensure that they can give better information on current and potential levels of energy efficiency in a building

8. Direct greenhouse gas emissions from low and zero carbon heating systems (

9. SAP 10.2 - 11-04-2023.pdf ( defines ‘main heating system’ as the system which heats the largest proportion of dwelling. It is a heating system which is not usually based on individual room heaters (although it can be), and often provides hot water as well as space heating.

10. This reflects the much smaller scale of this transition, and that it is likely to be a natural consequence of the wider heat transition.

11. We propose that dates applying to owner-occupied homes will also apply to empty homes and short-term lets.

12. Tackling Fuel Poverty in Scotland: A Strategic Approach (

13. The Energy Efficiency (Private Rented Property) (Scotland) Regulations 2019 - Scottish Government consultations - Citizen Space

14. Initial list based on research which set out to understand how homes could reach a good level of energy efficiency - published alongside Energy Performance Certificate Reform Consultation 2023 (

15. A technical specification of the list of measures will be consulted on ahead of the introduction of regulations.

16. The Energy Efficiency (Private Rented Property) (Scotland) Regulations 2019 - Scottish Government consultations - Citizen Space

17. A good level of energy efficiency is defined in the Heat in Buildings Strategy as equivalent to EPC C (based on current Energy Efficiency Rating on an EPC). Scottish Government commissioned BRE Group to understand what measures were required to achieve this level which showed it is achieved when a home requires less than 120kWh/m2/year of energy needed to maintain a comfortable temperature for space heating only (not including energy needed to provide hot water). It showed that when installing the measures suggested in the list, a clear majority (around 66%) of Scottish homes could achieve this good level of energy efficiency.

18. where an EPC demonstrated that a home required less than 120kWh/m2/year of energy needed to maintain a comfortable temperature for space heating.

19. We are considering developing an assessment tool which would enable building owners to understand which types of clean heating system are most suitable for their building. This tool could also help make an assessment of which energy efficiency measures were most suitable for traditional buildings and which were not.

20. EST Taylor Mackenzie research

21. Registers of Scotland Property Market Report 2023 (

22. The affirmative procedure in the Scottish Parliament provides maximum scrutiny of the use of powers provided to the Scottish Ministers. It requires Ministers to appear before a lead Committee and an opportunity for the Scottish Parliament to vote on whether to allow the laws being proposed under these powers.

23. Heat networks could grow to supply between 17.1 – 32.1% of Scotland’s total heat demand.

24. Heat Networks Delivery Plan (

25. Local Heat and Energy Efficiency Strategy (

26. Local-Heat-and-Energy-Efficiency-Strategy-Fife-Public-Engagement-Draft.pdf

27. Unless they have ended their use of polluting heating.

28. New Deal with Local Government – Verity House Agreement - (

29. We have already commissioned initial research on this: Whole building assessment in multi-owner and mixed-use buildings (

30. A ‘Scottish public authority’ is one listed under section 3(1)(a) of the Freedom of Information (Scotland) Act 2002.



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