Geothermal power in Denmark

Denmark has two active geothermal district heating plants, one in Thisted which started in 1988,[1] and one in Aarhus, started in 2025.[2]

Two others have stopped working. A facility in Sønderborg failed in 2018 due to silting. One in Copenhagen started in 2005,[3] and stopped in 2019.

The underground temperature is under 100 °C (212 °F), reducing thermodynamic efficiency so electricity production is not feasible. Their geothermal heating is used as heat input to electric heat pumps (consuming grid electricity) to heat buildings.

See also

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References

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  1. ^ "Thisted Varmeforsyning Geotermi". Archived from the original on 2008-10-01. Retrieved 2009-04-10.
  2. ^ "Project: Aarhus, Denmark – Geothermal in Aarhus". Innargi. 2025. Retrieved 2025-11-03. The Skejby facility will be delivering its first heat in 2025.
  3. ^ Allan Mahler & Jesper Magtengaard, Proceeding World Geothermal Congress 2005, Geothermal Development in Denmark, Country Update WGC 2005 Archived 2009-03-25 at the Wayback Machine