The Reichstag building in Berlin has been home to the German Parliament since 1999. In the 90's, KBP was responsible for the general technical planning and project management for the Reichstag project and for the technical network of all parliament buildings in the Spreebogen region. The aim was to optimally integrate the extensive technology into the sophisticated architecture.

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The supply concept provides for an energy network with several vegetable oil-powered combined heat and power plants, which operate on the principle of combined heat and power. The primary energy used is optimally utilized. By using innovative concepts and technologies, the buildings of the German Parlament play a pioneering role in terms of energy consumption, pollutant emissions and greenhouse gases.

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In addition to the exemplary energy supply, the representative building was equipped with all state-of-the-art communication and presentation technologies. In addition to the plenary hall, it also houses meeting rooms for the parliamentary groups, the offices of the President of the Parlament and catering facilities.

The entire heat and electricity requirements of the Reichstag building are met from renewable energy sources. A combined heat and power plant powered by biodiesel in conjunction with a so-called aquifer storage facility is available for this purpose. ‍

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When these two components work together, it is possible to store cold or heat in porous rock layers over a longer period of time. In this way, excess heat, which is generated significantly during cogeneration even in summer, can be stored over a long period of time. Supplemented by the aquifer storage system, the CHP plant can be operated at optimal capacity almost all year round. At the same time, a cold water aquifer is available, which is cooled in the winter months by adding cold water. This provides a cold water storage tank that heats up to a maximum of +6°C in summer and is therefore ideal for supplying the building with cold water. ‍

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Integrated into the architecture of the roof landscape, a pilot PV system was built on the Reichstag building. With 38 kWp, it makes a further contribution to the renewable energy concept for the Reichstag and parliamentary buildings. An overarching network has been created for all media in the existing and new parliament buildings. This networking with simultaneous central supply creates a high level of supply security and energy efficiency.

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‍Reichstag building energy concept