Energy Assessment and Reporting Methodology

The purpose of this publication is to make available a procedure for assessing the energy and systems performance of buildings, and to provide support for legislative developments on the energy labelling of buildings including the EU Energy Performance of Buildings Directive. The procedure has been updated from the 1999 edition to improve ease of use and to fully integrate its building sectors.The TM22 procedure forms the basis of well received initiatives including the PROBE investigations and Energy Consumption Guide ECG019: Energy use in offices. It has been developed over a number of years from initial work by William Bordass. The publication has been funded by the Carbon Trust, and by the CIBSE Research Fund. It has also relied on the support and interest of members of the CIBSE and the British Institute of Facilities Management (BIFM).The TM22 publication was drafted from previous BRE-funded work by Target Energy Services, with assistance from Building Energy Solutions, and was reviewed by a voluntary task group of CIBSE members. At an early drafting stage, two workshops were held to obtain feedback on what CIBSE and BIFM members would require of the procedure.