What is SBEM?

SBEM (Simplified Building Energy Model) is a government-approved methodology for calculating the energy performance of non-domestic buildings in the UK. It's used to demonstrate compliance with Part L of the Building Regulations and to generate Energy Performance Certificates (EPCs) for buildings when they are constructed, sold, or rented. SBEM involves creating a model of the building, inputting data about its construction, heating, ventilation, air conditioning, and lighting systems, and then running a calculation to estimate its annual energy consumption and carbon emissions. The resulting figures are compared against target emissions rates to determine compliance.