Energy Use Intensity
"Energy Use Intensity (EUI): The total operational energy demand per unit floor area over a year (kWh/m²/year). This includes all regulated (heating and cooling, hot water, lighting, pumps and fans) and unregulated (cooking and plug loads) end uses within the building. Following the WLC Conventions, regulated consumption is based on location-specific SAP modelling outputs and unregulated consumption on occupancy / floor area algorithms. EUI does not depend on whether the energy comes from the grid, or from building integrated renewables, such as PV."
WLC Conventions: The Future Homes Hub Whole Life Carbon Conventions for New Homes (2024). This is a set of material and life cycle defaults and assumptions appropriate for WLC assessments for new homes in the UK.
"Developed by the sector – comprising of developers, manufacturers and whole life carbon experts – the FHH Whole Life Carbon Conventions for New Homes aim to help businesses across the sector share and report whole life carbon assessments on a consistent basis. The WLC conventions: Drive consistency of WLC assessment outputs by agreeing the assumptions and conventions relevant for new homes sector. Help the sector move towards mainstream measurement and disclosure – building awareness and engaging the mass market. The Conventions reference the same core methodology defined by EN 15978 and RICS PS 2023 and can be used with any commercial assessment tool."
[edit] Related articles on Designing Buildings
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.
Planning condition discharge in England and Wales
A brief exoplanation from a building compliance expert, with further links.
Overheating guidance and tools for building designers
Guidance for dealing with element of building fabric control that have increasing importance.
Shading for housing, a design guide
From the Good Homes Alliance and British Blind and Shutter Association.
UK Standard Skills Classification (SSC)
A shared framework for describing skills needs.
Social media ban consultation comes to close
CIOB urges UK Government to consider social media’s role in careers guidance in ban debate.
The latest of eight Skills England apprenticeship units
The addition of battery manufacturing welcomed by ECA with a warning about the risks of fast-tracked apprenticeship units.
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.
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.
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.