As per the this article from
Bitcoin Magazine, I've learned that Terawulf launched a nuclear powered mining operation.
0.02 usd per kw/h with a 5 years stability (regarding the price)
“The Nautilus nuclear-powered mining facility benefits from what is arguably the lowest cost power in the sector, just $0.02/kWh for a term of five years,” Prager commented.
Only 1.9 Eh/s for now, but I think that we will see more and more nuclear powered mining farms in the near future.
What could be the disadvantages ? Ecological, cheap and stable power is litteraly the ultimate dream for mining farm's owners.