Germany turning abandoned coal mines into 23 lakes, becoming artificial wetland

Re:Germany turning abandoned coal mines into 23 lakes, becom... by ed_balls on Friday October 09, 2026 @01:28PM (#50023869)

I wish someone would try to convert them in geothermal plant.

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Re:Germany turning abandoned coal mines into 23 lakes, becom... by Quarrelsome on Friday October 09, 2026 @01:30PM (#50023916)

I think you need to go much, much, much deeper for that.

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Re:Germany turning abandoned coal mines into 23 lakes, becom... by ed_balls on Friday October 09, 2026 @02:34PM (#50024856)

I was thinking about hybrid approach. Drilling to 5km and get water that has 200 C and use natural gas to provide additional heat to produce steam at 374°C.

Alternatively, flood the mineshafts and set up heat exchangers. Wait for Co2 turbines to become viable and get rid of gas.

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Re:Germany turning abandoned coal mines into 23 lakes, becom... by yangm97 on Friday October 09, 2026 @01:44PM (#50024129)

Millimeter wave boring (aka death star laser) is supposed to help with that.

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