1. BEIS. (2013/2023). National energy efficiency data-framework (NEED) (Updated 2023). Department of Business, Energy and Industrial Strategy (BEIS). https://www.gov.uk/government/collections/national-energy-efficiency-data-need-framework
2. BEIS. (2017/2023). Domestic private rented property: Minimum energy efficiency standard—Landlord guidance (Updated 2023). Department of Business, Energy and Industrial Strategy (BEIS). https://www.gov.uk/guidance/domestic-private-rented-property-minimum-energy-efficiency-standard-landlord-guidance
3. BEIS. (2021). Cost-optimal domestic electrification (CODE) (Report by J. Palmer & N. Terry). Cambridge Architectural Research/Cambridge Energy. https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/1104051/CODE-Final-Report-WHOLE-FINAL-v20.pdf
4. BEIS. (2022). Total final energy consumption at regional and local authority level: 2005 to 2020. Department of Business, Energy and Industrial Strategy (BEIS). https://www.gov.uk/government/statistics/total-final-energy-consumption-at-regional-and-local-authority-level-2005-to-2020
5. BSI. (2022). Retrofitting dwellings for improved energy efficiency. British Standards Institution (BSI). https://standardsdevelopment.bsigroup.com/projects/2020-02767#/section