If that energy wouldn't be used for bitcoin mining it would be used for another purpose that right now is using coal energy. Pretty simple. Let's say that all the energy from the three gorges dam is going to be used for bitcoin mining, what are the people that currently are using that energy going to do? Turn to coal!!!!
B.S
imagine the three gorges dam
22500MW = (1 MW = 2,190 MWh.) so 22500MW= 49,275,000mwh =49.275 Tw/h = 431,649 TWH per year
in 2016 it only used under 100,000 twh per year
thats only 25% utility.
That's not utility, that is how much they were able to produce.
No water for all the turbines, there is no way you can produce at full capacity.
The Yangtze has variations up to 6 times in debit.
Check those two graphs and how they match each other:
right now coal gnerators take so long to set up, warm up and get on the road that they end up just staying on the road and act like Uber, taking othr people and leasing out their spare seat..
Wrong, coal power plants are always kept on standby and they can produce at 90% in a matter of 10-30 minutes, gas power plants are even faster at coming back online.
Almost every country in Europe is using coal or gas to balance the loads, Germany, for example, is backpedaling on the closure of coal mine as they've experienced the same thing as Poland, 4 days with barely any energy from solar and wind.
With coal/gas plants and imports they would have experienced the stone age for a week.
Check the live graph here:
https://www.energy-charts.de/power.htmAnd look how coal can easily balance the grid, spiking when wind and solar fail...
now imagine if a big industry comes up to the neighbour and says. il give you a contract to lease out the spare seat of your hydro/solar hybrid car for a year AND we still have 2 back seats so that Mr Coal can tag along in the hydro-solar car.. making the hydro-solar car the Uber and so now the coal car can finally switch off its engine and get phased out.
Unfortunately, the energy sector is not like that.
There is little to spare, there are no empty seats and people are driving in opposite directions.
Car sharing will never be able to even dream what load balancing does to the energy sector.
Don't get me wrong I don't like coal either but without a clean way to store energy, solar and wind will never be able to replace fossil.