Fraunhofer Institute for Building Physics IBP
The Höhenkirchen-Siegertsbrunn community, which is located 50 kilometers south of Munich, wanted to build a children's daycare center that is particularly sustainable. The idea is that the building should generate more energy than it needs and feature a high level of thermal comfort. The community therefore commissioned Fraunhofer IBP to develop an innovative concept and also brought in an interdisciplinary team of architects and specialist planners to support its implementation.
All key factors for the PlusEnergy concept were taken into account: Consistent minimal consumption thanks to a building envelope free of thermal bridges, the efficient use of passive heat gains and daylight, a regenerative cooling option with night ventilation via the windows, efficient systems engineering with brine/water heat pumps, a CO2-controlled ventilation system with heat recovery, and
regenerative energy generation via photovoltaic modules and evacuated tube collectors to provide domestic hot water and to supplement the heating system.
In August 2013, children and carers moved into the building. The two-year measurement program showed that a daycare center can be designed as a PlusEnergy building with a positive end-energy balance, taking into account all consumers in the daycare center, while providing a high level of thermal comfort and air quality for the children and carers. In addition, the effectiveness of natural night ventilation in wooden buildings could be confirmed.
The project was funded by the German Federal Ministry for Economic Affairs and Energy (BMWi) as part of the “EnEff:Schule” funding program, Funding Code No.: 0327430P
