arbn consult is a valuable decision and consultancy tool permitting assessors and real property asset managers to make energy performance investment decisions. Developed by arbnco and specifically designed for MEES compliance, arbn consult provides fully costed retrofit strategies for improving energy performance in individual commercial buildings. By uploading the INP/XML file from an Energy performance Certificate, the arbn consult software identifies what retrofit measures to implement to improve the EPC rating, the cost of these measures including discounted payback periods and demonstrates the ability of each measure to achieve MEES 7-year payback rules. Taking the data file behind any commercial EPC, the software can generate a fully costed improvement report, detailing carbon, cost and energy savings potential and impact on the resulting energy rating. The arbn consult software will run multiple simulations of combinations of improvement measures in order to provide four strategies for the improvement of the energy consumption in the building. These strategies are based around the EPC rating, which are directly related with the expected energy costs of the premises and are predicated upon being required for F and G rated buildings in the majority. The strategies are as follows: • The EPC assessor’s maximised rating • The best possible EPC rating • The most cost-effective way to achieve a band D • The most cost-effective way to achieve a band E