Thermal Modelling Thermal Modelling Base Energy can provide CIBSE-compliant Thermal Modelling reports, throughout the UK on all domestic and commercial properties. Thermal modelling involves building a computational model of a building and using it to run simulations, allowing predictions to be made around the building’s performance. Our reports meet the requirements for CIBSE TM52 (Commercial), and TM59 (Residential). Our consultation service means you can use our expertise from the design stages to ensure you have full knowledge of your properties’ thermal performance, CO2 emissions, and possession of the relevant energy performance certificates.