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Rapid analysis of complex existing buildings in terms of their energy utilisation
05.12.2013

“TEK-Tool” software supports energy consultants

Until now, analysing the weak spots of the architecture and building services equipment of existing non-residential buildings has been a very labour-intensive process. The BINE Projektinfo brochure “Energy performance analysis of complex existing buildings” (16/2013) presents the new TEK-Tool developed for just this purpose. It lightens the required workload significantly. The program helps energy consultants understand actual consumption, evaluate partial energy consumptions, identify weak spots and calculate potential savings.

A conventional mathematical building analysis following DIN V 18599 for existing buildings requires detailed data. With TEK-Tool, the calculation procedure has been simplified and an analysis will take about three days of work. The program runs its calculations using partial energy characteristic values. This method breaks down the energy requirements of a building according to the various systems, such as heating and lighting as well as building zones. The partial energy characteristic values thus determined are compared with reference values of the same systems and with buildings with a similar use. The method is similar to the reference building method carried out for the energy requirement certificate. TEK-Tool also suggests modernisation measures.

Together with academic and professional experts, scientists at Institut für Wohnen und Umwelt GmbH (IWU) Darmstadt developed the TEK-Tool program. The freeware program is available for download at www.iwu.de.

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Downloadable pictures

Note: All downloadable pictures may only be used for coverage relating to this research project.

The BINE-Projektinfo „Energy performance analysis of complex existing buildings“ (16/2013)

Minicover
(300 dpi, tiff, 1.6 MB)

Figure 1: The results of the building analysis can be categorised in one of five classes. (© IWU)

Figure 1
The results of the building analysis can be categorised in one of five classes. (© IWU)

Download TEK-Tool
TEK - Teilenergiekennwerte von Nichtwohngebäuden Download (in German only). (© IWU)