Well, I’m new to this too, so we’re all learning together. I have a friend that live in Indy that into mining. He said it takes about 10 days to make .03 BTC. As far as electricity goes, the S9 required to run on 220v for optimum harsh power. And it costs him about $120/month/S9.
As of today, you’ll earn about $1k/month-$120-cost of the S9. So when it not profit to run anymore, you simply stop running it. He’s currently mining Bitcoin, Ethereum, and Litecoin.