A cost-effective model- and measurement-based methodology for ongoing commissioning

The building sector is responsible for a major part of the energy consumption. A considerable reduction can be achieved by improving the operation of the buildings. A methodology to organize and standar-dize the ongoing commissioning of buildings was de-veloped. The method consists of 4 steps. An impor-tant criterion developing this method was cost-effec-tiveness. Therefore a top-down approach was chosen. A minimal dataset was defined which was measured at all demonstration buildings. In this paper different modeling approaches within the methodology are discussed. Applying this methodology to 17 non-residential demonstration buildings energy cost savings from 4 to 29 % were found.