RE 01 - Energy Strategy

Energy consumption and carbon emissions of untreated spaces - KBCN00049

Where the assessment contains a mix of treated and untreated spaces, untreated spaces can be excluded and the performance based on the treated spaces only. Where the entire assessment is untreated, the whole of the structure(s) must be assessed on the basis that this issue is critical for certification. BREEAM is primarily designed to assess permanent, treated and occupied structures. Untreated structures are unlikely to gain many credits when being assessed.

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Internationally approved Ene 01 calculation software - KBCN1177

The following calculation software are approved internationally and can be used, provided local weather files are available in the country of the assessment. Please make sure the approved version, in brackets, is used. If you wish to use a different one, please submit a technical query to BREEAM@bregroup.com providing details of the changes.

• IES VE (all versions from 2014 onwards).
• Design Builder (version 4 onwards).
• TRNSYS (version 17 onwards).
• eQUEST (versions 3.63b and 3.64 onwards).
• Energy Plus (version 3 and version 6 onwards).
• EDSL Tas (v9.5.0 onwards).
• IDA ICE (Version 5.1 onwards) 2
• TRACE 700 (Version 6.3.5 onwards)

Any software that has been approved on the ASWL for a particular country can be used in other countries, provided relevant weather files are available.

27-Apr-2026- TRACE 700 Software added
03-Apr-2025 - IDA ICE Software added.
26-Mar-2024 - Scheme applicability updated.
08-Aug-2022 - Applicability to BREEAM Communities 2012 confirmed.
30-Jun-2023 - Added note relating to software approved for a particular country.

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