Engineering360: "Geothermal fracking is heating up in 2025"

Making these giant long lasting heat exchangers is formidable, accessing a little of the abundant heat stored under the ground. But do we have to deplete the heat when ever cheaper wind and solar electricity can regularly top it up by driving big heat pumps? That way the 24/7 energy return from the monster investment in the bores can be boosted? That fat power grid connection for the steam or ORC turbines can work two ways. But fields of PV and a big wind turbine on site can avoid the grid charges.