We douse for an underground river, and drill down to the super heated water. We give the water a small vent to 7.8 bars, at 270oC. We pass through a ruggarised Dyson dry cleaner, and revove all the gold, silver and platinum dust.
We sell on, to process into ingots. We pass it over the hot end of a Carnot heat pump, and get clean steam at 350oC. We generate 150kW.
We can 8kW, so we sell 142kW to the national grid – who pay us 426,000 pounds here in the UK: for carbon 0, fossil fuel free power.
So all farm can use this idea – and get a huge fortune. The thermoelectric mains generator, we buy over the internet. No fuel burn, no radioactive materials. Clean Earth heat.
Free power than pays! For the cost of one bore hole.