Apparently, Chinese nuclear scientists are looking at lunar surface material samples brought back by the Chang'e 5 lunar exploration mission, in particular a sample is believed to contain helium-3. Helium-3 is rare on Earth and might be useful in fusion reactors.
[One] study concluded that to supply 10% of the global energy demand by 2040, roughly 200 tons of Helium-3 would be required annually. To do this would require a regolith mining rate of about 630 tons per second. This number is based on an optimistic concentration of 20 ppb helium-3 in the lunar regolith. All this translates to a requirement of between 1,700 to 2,000 helium-3 mining vehicles.
Based on these numbers, the required power for mining operations would be as high as 39 GW, with a resulting power system mass of the order of 60,000 to 200,000 tons. To support the mining operation, a fleet of three lunar ascent/descent vehicles and 22 continuous-thrust orbit-transfer vehicles would be needed. And the expected annual costs are in the trillion-dollar range.
Tumblin' Tumbleweed Rovers To Eplore Mars
'His sensors out and working, and the whirring of the tape that sucked up sight and sound and shape and smell and form...' - Clifford Simak,
Reflect Orbital Sunlight On Demand
'I don't have to tell you about the seven two-mile-diameter orbital mirrors that circulate around the satellite, making it habitable.'
Elon Musk Wants Data Centers In Space
'Internally it’s made up of millions of components, but the most important ones are the thinking and memory parts of the Mind proper.' - Iain Banks, 1987.
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Tumblin' Tumbleweed Rovers To Eplore Mars
'His sensors out and working, and the whirring of the tape that sucked up sight and sound and shape and smell and form...'
Reflect Orbital Sunlight On Demand
'I don't have to tell you about the seven two-mile-diameter orbital mirrors that circulate around the satellite, making it habitable.'