Hello team, I live in the Dominican Republic and I'm planing to buy at least 3 Antiminer S7, but I'm worry about the power consumption. Only one of those can suck almost 970 KWh (around USD$195 at current exchange) in a month.
Which alternatives do you recommend that I need to implement to keep my electrical bill low or, at least, to gain USD$50 per month?
I was looking for using green power sources (solar and wind), but the initial investment it's ridiculous: I'll need more than USD$10,000 just for a few miners.
If my math is correct and your electricity is US$0.201/kWh (and assuming that includes tax, delivery, etc) then I would highly suggest you don't get involved with mining (especially BTC mining) at this time. You will be losing money from the beginning, even if your S7's were free:
https://bitcoinwisdom.com/bitcoin/calculatorAs posted above, I would look into government incentives for green energy. At that electricity rate, I think building a solar and/or wind farm would be beneficial if there were government grants or otherwise. At your rate, you are looking at spending over US$600 per month for electricity for the 3x S7's, and that will be constant month after month. Whereas your revenue from mining will decrease month after month.