As we know, for bitcoin mining lots of electricity required, so if this way we continue doing,Is it affect the environment ?
Lots of electricity means lots of coal burned.
So shall we go towards green energy ?
I have seen some of the figures being released saying the annual consumption is something like 45 TWh. The most commonly referred
calculation is here. They are using the revenue earned by miners to back-calculate the energy consumption which looks pretty flawed. Some back of the hand calculation shows that figure is pretty inflated.
The S9 consumes 1350W for ~14TH/s.
If all the mining hardware is assumed to be as efficient as the S9, We'll have 21,000,000/14 = 1,500,000 S9 working.
Per day consumption: 1,500,00 X 1350W x 24 Hrs = 48600 Megawatt Hr.
Per Year: 48600 X 365 =17,739,000 MWh = 17.739 TWh.
Now, multiply this by a factor of 1.5 to account for cooling costs and the distributed hardware,
we have an estimate of around 27 TWh.Of course, i am pulling this factor of 1.5 just randomly but i suppose its a reasonable assumption. It means for every S9 consuming 1350 Watt, you spend 675 Watt for cooling and auxiliaries.
The calculation up there which shows 45 TWh is an alarmist figure.
The 27 TWh per year is also pretty humungous.
Bitcoin network like any other value proposition system will use energy. The figures being given out sound alarmist to me. What needs to happen is that Bitcoin miners should shift to more energy efficient hardware. Bitcoin community and miners need to find solutions to these problems. It is a governance issue and it can be solved. People just need to put their head together and in the meanwhile, we all need to do a bit more math..