Energieausweis nach DIN V 18599 und mittels Gebäudesimulation – ein Projektbericht

Energy performance assessment based on DIN V 18599 vs. building simulation – a project report. The new German Energy Conservation Ordinance (EnEV 2007), which came into force on 1^st October 2007, stipulates a new approach to energy performance assessment for non‐domestic buildings. In the past the calculations based on DIN 4701‐10 for office buildings and heated halls, for example, were relatively simple. DIN V 18599, in contrast, now specifies a rather time‐consuming procedure. In parallel, since the 1970s the approach to energy performance assessment increasingly developed from “passive” calculations to an “active” and key component of the design and formation process for a project, and this is indeed how it should be if the aim is to create an energy‐optimised building design. Based on a specific project the suitability for practical application and the benefit for the client of the calculation procedure according to DIN V 18599 were compared with a thermal building simulation. The resulting implementation issues are discussed in this paper. The Energy Conservation Ordinance 2007 no doubt represents a further milestone with far‐reaching consequences for the planning process and for building design and raises new issues that will have to be addressed in future.