Energy Efficiency Energy and our assessors are accredited for SAP and SBEM calculations via Elmhurst) body and uses leading industry Plan Assessor and iSBEM and software in all its SAP, SBEM and EPC’s for Part L Building Regulations. Our assessors work continuously to increase their knowledge of these fields of specialism, in order to ensure customers have access to the best advice and technology. SAP and SBEM calculations form the basis of all our energy efficiency reports and you can read more about both here: SAP SBEM Thermal Modelling (Dynamic Simulation Modelling) Our team will work hard to find the best solutions for your projects, by using a variety of energy efficiency methods to meet the required Building Regulations compliance for Part L. Base Energy is a member of Elmhurst and Stroma accreditation bodies and uses leading industry software in all its SAP, SBEM and thermal modelling calculations to produce EPC reports.