To support quality and accuracy in Ene 01 credit calculations, an additional check has been introduced for UK New Construction V6.1 only. This checks that, in the BRUKL file, the total building area equals the sum of HVAC system areas (notional and actual) and if not, it generates an error message during the upload. These area values are used to calculate the adjusted notional value for Ene 01.
We are aware that some approved third-party software (e.g. IES, TAS) may be generating files with floor area discrepancies, even if the energy model is correct. If this affects you:
- Contact your software provider for guidance.
- If using an adjusted BRUKL file for Ene 01 (different to the version submitted to building control), in your evidence please upload both:
- The original BRUKL
- The adjusted BRUKL (same filename with “_adjusted” suffix)
For additional information, please reach out to [email protected]
06 Jun 2025 - Title and wording updated to clarify the intent and scope of the guidance
