The Earth is a massive fusion plant, as the deep water circulates around the planet, it does Molecular Nuclear Fusion.
So the water is at 8 bars, and 250oC – and only liquid because of the pressure. The Molecular Nuclear Fusion does create steam pockets – the heat being lost to the deep earth or sera.
So this river of superheated water is all over the planet -2O anticlockwise from terrestrial rivers. So we use ground sonar, to locate fluid or steam filled mantel pockets.
We drill down, and enter from below – so we get at the liquid water. We vent to 7.8 atmosphers/bars, and get at dirty steam. We pass through a rudadised Dyson cleaner, and scrub out the metal dust.
Which is gold, silver, platinum, copper, zinc, iron plus arsenic and lead. We sell on, to process into ingots. This makes up ½ our income.
We pass the clean steam through a turbine, and generate 2MW of power – any company needs kW during the working day.
We sell the rest to the national grid, making 30 million a year: that is how much our gold is worth today. Not for long.
So we get at clean 0 carbon power – that will power 3 neighbourhoods. And we get an indecent amount of gold.
The bore hole and ground sonar will cost 3000 UK pounds. The turbine 27. So the plant will pay for itself in 8 hours.Carbon 0 power, that gives you indecent amount of free gold: with no mining.