Non domestic Energy Assessment Procedure (NEAP)
The Non Domestic Energy Assessment Procedure (NEAP) is the methodology for demonstrating compliance with specific aspects of Part L of the Building Regulations. NEAP is also used to generate the Building Energy Rating (BER) and advisory report for new and existing non domestic buildings.
NEAP calculates the energy consumption and CO2 emissions associated with a standardised use of a building. The energy consumption is expressed in terms of kilowatt hours per square metre floor area per year (kWh/m2/yr) and the CO2 emissions expressed in terms of kilograms of CO2 per square metre floor area per year (kg CO2/m2/yr).
NEAP allows the calculation to be carried out by approved software packages or by the default calculation tool, Simplified Building Energy Model (SBEM), which is based on CEN standards and has been developed by BRE on behalf of the UK Department of Communities and Local Government.
SBEM, accompanied by a basic user interface, iSBEM, calculates monthly energy use and CO2 emissions based on building geometry, construction, use and HVAC and lighting equipment. The purpose of SBEM and its interface iSBEM is to produce consistent and reliable evaluations of energy use in non-domestic buildings for Building Regulations compliance and Building Energy Rating purposes. Although SBEM may assist in the design process, it is not primarily a design tool.
SEAI gratefully acknowledges the co-operation of the UK authorities (Department of Communities and Local Government) in enabling the adaptation and publication of SBEM for official use in Ireland, within the framework of NEAP.
Please click here to download SBEM
NEAP Software Validation and Approval
NEAP Survey Guide
NEAP Survey Form
