EPC recast

Evaluating Energy Performance in Starnberg, Germany: A Case Study of EPC RECAST Pilot Application

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EPC RECAST Pilot Application: Case Study Starnberg, Germany

Within the case study in Ludwig-Thoma-Weg 1, Starnberg the application of the EPC RECAST tools are being tested.

To assess the innovative content of the developed solutions established assessment methods were applied in parallel, that comply with German regulations.

Furthermore, an installed monitoring allows an accurate measurement of the energy used.

Building characteristics

The three-story building contains 6 residential units and has a living area of 807 square meters. With an average U-value of 0.30 W/m²K the heat transferring building fabric covers a thermally conditioned volume of 2522 m³ and features the façade design as shown in the figures.

On side of the technical systems a central system with a condensing boiler using natural gas supplies radiators and together with an attached storage provides domestic hot water for the residential units. A thermal solar collector as well as PV panels complement the overall energy concept on side of renewable energy systems., The building is naturally ventilated. Only the wet rooms are mechanically ventilated with decentral exhaust shafts and electric ventilators.


Energy assessments

Within the framework of the project an up-to-date German operational rating has been compiled on behalf of the energy bills of three consecutive years beginning 2020. As a preliminary result this assessed performance matches the initial EPC that was generated for the building permit application in 2015.

For the EPC RECAST data acquisition approach the tools available have been applied. Here, the method of using the floor plan as a base to derive the building geometry within the BIMEO App has been used together with the LIDAR-scanning function for two selected apartments to on one Floor of the three-story building. Currently the data enrichments and energy calculations further downstream the EPC RECAST computation chain are on the way. These results will build the base for comparing the different methods. The findings of this case study will be presented within the final report of the EPC Recast project.

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