SBEM Calculations are the Simplified Building Energy Model. This is a government approved methodology which is used to calculate the energy required to heat, cool, ventilate and light a non-residential building over a 12-month period when used under ‘normal” circumstances.
Approved Document L2A of the Building Regulations states that all new buildings must be designed and built to a standard such that the calculated Building CO2 Emission Rate (BER) is no worse than a defined Target CO2 Emission Rate (TER).