GEOTHERMIE NEUBRANDENBURG GmbH
Seestrasse 7 A; D-17033 Neubrandenburg
phone: +49 (0) 395/3 67 74-0; fax: +49 (0) 395/3 67 74-11
[email protected]
www.gtn-online.de
Project sample:
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 hightemperature cooling systems in the buildings.
Contact for additional information: Dr. Frank Kabus
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, blocktype cogeneration plants, boilers, heat pumps,
chillers, primary heat, and cold supply systems
Process monitoring and R&D
Facts and Figures:
Aquifer heat store
o Effective horizon
Hettangian
o Depth
300 m
o Wells
2
o Flow rate
100 m³/h
Aquifer cold store
o Effective horizon
Quaternary
o Depth
50 m
o Wells
12
o 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