That's a great idea. We all know how much energy a regular mining consumes in a month. We should take into consideration that mining have huge energy consumption because the rigs run 24/7. I cannot even imagine how much bigger mining farm consumes. Not all countries are capable to give the amount of energy demands of the public and so the possibility of higher cost of it is very high. In order for a miner to be worry free of the monthly bills, renewable energies are the answer.