While it should be possible to turn a small operating profit (i.e. income is greater that expense to run), for about 3 weeks starting today, that likely won't last after July 10th with $.20/KWh electrical cost. Unless the S7 is free, you probably will never pay ff the cost of it. The reason for the July 10th date, is that is when the current 25BTC reward per block will be reduced to 12.5 BTC (aka "the halving"). This also assumes that the current $750 BTC price remains intact.
Your $.20 electricity cost is about 3x too high to have a long term mining future.
Long term at .20 is just not going to happen. Have you ran ROI math with S7 and this? When looking at a S7 it will not happen at that price, a S9 you likely could do for a certain amount of time depends on BTC value and difficulty. But really it is just to darn high in the scheme of things with electricity to mine long term.
You can get a legit hosting center for I would guess around 1/2 of that. So I would really look into hosting as it means less electricity cost and that means more profit. Also cooling for summer to can add up so again hosting for you just makes a lot more sense. But make sure to do some ROI math as if you do you will see S7 at .20 USD is not going to be successful. I like this site for ROI -
https://bitcoinwisdom.com/bitcoin/calculator