Geothermal power plant © Siemens Stiftung 2017 CC BY-SA 4.0 international

Geothermal power plant

Image

Photo:
The pictured geothermal power plant meets the overall heating requirements of the Freiham residential and commercial district west of Munich.

English, German
Image (358.1 kByte)
2018-07-13
Deep water with a temperature of 90°C is pumped from a production well. The heat of this water pumped from a depth of 2,500 m is transferred to the district heating grid via a heat exchanger.
After that, the cooled water is pumped down deep again via an injection well. The resulting savings of fossil fuels reduce emissions of carbon dioxide by 22,500 tonnes annually.
Besides the pumps and the heat exchanger, the pictured plant also contains a large gas boiler that is used as an emergency power supply in the event the pumps are shut down for maintenance or repair.
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Illustration
Geography; Physics; Technology
Grade 5 to 6; Grade 7 to 9; Grade 10 to 13
Middle/high school; Vocational training
Ecology; Energy; Environment (general); Environmental protection; Renewable energy; Solar energy; Water
Siemens Stiftung Media Portal
Dr. Michael Huber
© Siemens Stiftung 2017
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