Target Primary Energy Rate
Approved document L, Conservation of Fuel and Power, Volume 2: Buildings other than dwellings, 2021 edition incorporating 2023 amendments, defines target primary energy rate as: ‘The maximum primary energy use for the building in a year, expressed as kWhPE/(m2.year).’
Part L 2021 Where to start, A guide for housebuilders and their advisors, Masonry construction, published by the Future Homes Hub in June 2022,defines the Target Primary Energy Rate (TPER) as an: ‘Additional compliance metric added for 2021, the target primary energy rate as calculated by SAP for a particular home and is expressed as kWhPE/(m².yr). The calculation is based on a notional dwelling... (etc, as per TFEE & TER).’
[edit] Related articles on Designing Buildings
- Approved document L.
- Dwelling Emission Rate.
- Dwelling Fabric Energy Efficiency.
- Masonry.
- Standard Assessment Procedure.
- Target Fabric Energy Efficiency.
- Target CO2 emission rates.
- Target Primary Energy Rate.
Featured articles and news
We're expanding our collaborative mission by launching DB Intelligence, an exclusive market research advisory panel. Built environment professionals can now get paid to share their expertise on industry trends, products and services.
Panel members receive direct financial incentives for participating in research projects like short surveys, 1-2-1 interviews and focus groups. Register today to shape the future of the construction sector.
Building Control Independent Panel final report
A precis of a key report led by Dame Hackitt with full recommendations and link to the government response.
Guide to ISO 19650 for Architecture Firms (2026)
A user gives their low down.
A UK training and membership provider for mould remediation professionals.
Building Safety recap April, 2026
A short and longer run-through of the month, with links to further information and sources.
CIAT May 2026 briefing.
Independent NSI and BAFE study exploring how organisations are changing the way they buy fire safety services.
From medieval scribes to modern word art.
ECA welcomes crackdown on late payment and push for clean energy, whilst CIOB seek fixed cladding removal timeframes.
Cyber Security in the Built Environment
Protecting projects, data, and digital assets: A CIOB Academy TIS.
Managing competence in the built environment
ITFG publishes new industry guide on how to meet the ICC principles.
The UK's campaign to reduce noise pollution: Mythbusting, articles and topic guides.