This European Standard specifies:a) overall indicators to express the energy performance of whole buildings, including heating, ventilation, air conditioning, domestic hot water and lighting systems. This includes different possible indicators;b) ways to express energy requirements for the design of new buildings or renovation of existing buildings;c) procedures to define reference values;d) ways to design a procedure for building energy certification.The standard can be applied to a group of buildings, if they are on the same lot, if they are serviced by the same technical building systems and if no more than one of them has a conditioned area of more than
DS/EN 15217:2007 history
2007DS/EN 15217:2007 Energy performance of buildings - Methods for expressing energy performance and for energy certification of buildings