“energy efficiency”

1. The Ecodesign for Energy-Related Products and Energy Information Regulations 2021 SI
2. The Electricity and Gas (Energy Efficiency Obligations) Order 2004 SI
3. The Energy Savings Opportunity Scheme Regulations 2014 SI
4. Finance Act 2003 Act
5. The Large and Medium-sized Companies and Groups (Accounts and Reports) Regulations 2008 SI 2 definitions
6. Local Government Finance Act 1992 Act
7. Regulation (EU) 2016/426 of the European Parliament and of the Council of 9 March 2016 on appliances burning gaseous fuels and repealing Directive 2009/142/EC (Text with EEA relevance) EU regulation
8. Regulation (EU) 2019/943 of the European Parliament and of the Council of 5 June 2019 on the internal market for electricity (recast) (Text with EEA relevance) EU regulation
9. Sustainable Energy Act 2003 Act

Definitions are taken from the instruments as published on zoomLaw, for guidance only. Check the instrument itself for its scope and any amendments.