Reichstag Building and Integrated Energy Supply System of the Parliament Buildings in Berlin

 

Client:
Planungsgemeinschaft Technik für den Umbau des Reichstagsgebäudes zum Sitz des Deutschen Bundestages in Berlin und TVP Planungsgesellschaft Kuehn Bauer Partner Ingenieure GmbH

Wilhelm-Wagenfeld-Strasse 6

D-80807 München

 

Land/Region: Germany

 

Period: 1996 - 2007

Project Description:
The Parliament buildings in the Berlin Spree river curve incl. the Reichstag building covering a total floor area of approx. 240,000 m² are equipped with heating and cooling installations at the following temperature levels:

  • Heating

110 °C/60 °C

45° C/30 °C (>60 %)

  • Cooling

12 °C/6 °C

16 °C/19 °C (>60 %)


Eight block-type cogeneration plants form the center of the energy production systems. They are consistently electricity-driven and supply primarily the inter-connected heating systems of the four buildings based on a centralized energy management. Absorption machines are driven as well. In summer, surplus heat is fed into the aquifer heat store at a temperature of 70 °C, recovered in winter and supplied at different points to the low-temperature heating networks of the integrated energy supply system.

 

A second aquifer which is situated at a depth of approx. 50 m serves as a cold store. Groundwater is stored here which has been cooled to 5 °C by means of ambient cold or heat pumps in winter. In summer, it serves the base-load supply of the high-temperature cooling systems in the buildings.

GTN Services:

  • Energy concept
  • Licensing procedures under the Mining Code, Water Act, and Immission Control Act of Germany
  • Numerical simulation of the aquifer store operation
  • Design, call for bids, and supervision of the construction of the aquifer heat stores, block-type cogeneration plants, boilers, heat pumps, chillers , primary heat and cold supply systems
  • Process monitoring and R&D

Facts and Figures:

  • Aquifer heat store
  • Effective horizon Hettangian
  • Depth 300 m
  • Wells 2
  • Flow rate 100 m³/h
  • Aquifer cold store
  • Effective horizon Quaternary
  • Depth 50 m
  • Wells 12
  • Flow rate 300 m³/h
  • Various block-type cogenerqation plants, 3,200 kWel
  • Various hot water boilers, 13,000 kW
  • Various absorption chillers/heat pumps, 2,000 kW
  • Various compressor chillers, 200 … 650 kW
PDF

 

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