Posted: Mar 14, 2022 1:02 pm
by tuco
newolder wrote:
tuco wrote:I am curious what the actual number would be, say in gigawatts. That's how one gets investors interested .. it can produce as much electricity as xyz nuclear powerplants. 10^? really big right? :)

Lord Kelvin's 1862 musings on "The Secular Cooling of the Earth" give a starting point to which we must add radioactive decay and the modern science of materials to conclude that the Earth's internal heat source flows to the surface at a rate close to 50 Terawatts: wiki link.

Probably not the number you seek but it's a guide to further guesses...

Neat, thanks.