The Non-Domestic Energy Assessment Procedure (NEAP) is Ireland's official methodology for calculating a Building Energy Rating (BER) for non-domestic buildings.

NEAP software

NEAP software calculates BERs and demonstrates compliance with Part L using the default calculation tool, the Simplified Building Energy Model (SBEM), or by other approved software packages. NEAP considers space heating and cooling, water heating, ventilation, and lighting, to calculate the energy consumption and carbon dioxide emissions in a building. NEAP software packages must be approved by the SEAI and can be classified as Dynamic Simulation Modelling (DSM) or Interface for SBEMie.

SBEM has been developed by BRE on behalf of the UK’s Ministry of Housing, Communities, and Local Government (MHCLG) UK MHCLG has enabled the adaptation of SBEM for official use in Ireland within the framework of NEAP.


NZEB Calculation Methodology and Software for Non Residential Buildings

The NEAP Software for Non Residential Buildings in the form of the Simplified Building Energy Model for Ireland (SBEMie) has been updated to demonstrate compliance with NZEB and Part L of the Building Regulations. 

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Other useful resources

NEAP Survey (v2.1)

This guidance and survey form is designed to assist BER Assessors record the survey information necessary for input into the NEAP software.

The above document includes databases for Constructions, Glazing Systems, and Activities as used in SBEM and other accredited tools. They are not required to run the tool but are made available for information.

Elements Adjacent to Unheated Spaces

This guidance enables BER assessors to calculate an area weighted adjusted U value for elements adjacent to unheated spaces for use in SBEM.

SBEM Elements Adjacent to Unheated Spaces Guidance

SBEM Elements Adjacent to Unheated Spaces Calculation Tool

NEAP Technical Support

If you have any questions that are not covered by the iSBEM User Guide or NEAP Modelling Guide and SBEM Technical Manual, we recommend that you read the NEAP Technical Bulletinsbefore contacting us.