At MARK 51°7 the old tunnel of the former Dannenbaum colliery has been reached and is now being checked whether mine water can be pumped to the surface from there as planned.
Intermediate success at German MARK 51°7 geothermal project where Stadtwerke Bochum and its subsidiary FUW GmbH were able to successfully complete the first geothermal well at a depth of around 340m.
At MARK 51°7 the old tunnel of the former Dannenbaum colliery has been reached and is now being checked whether mine water can be pumped to the surface from there as planned.