Hey SRF10 thanks for the reply, the rate is 14cents -the 50% off about 7 cents kwh pretty much, the investor has about 100k to invest into the intial setup.
Don't bother trying to mine Bitcoin at all.
7 cents/ kwh is too high for a large farm - and the 14 cents of the "base" rate is TOTALLY out of the question for a major ASIC-based farm.
At that cost of electric, you would want to go 100% GPU rigs or a mix of GPU and Baikal and possibly some Bitmain L3+ as the profitability of the S9 would be VERY VERY marginal after a few months (any other Bitcoin miner model is even worse) with a fairly high risk of never achieving ROI much less any sort of a profit at 7 c / KWH electric cost (14c is OUT OF THE QUESTION) - and even the mix I suggest would be somewhat iffy on ROI achievement, but would at least have a fairly good CHANCE at it.
EVERY major Bitcoin-specific major farm I am aware of is in an area where their cost of electricity is LESS than 4c / KWH, and MOST of them are paying less than 3.
Information on non-Bitcoin-specific major farms is a lot harder to find, but the few I am aware of are ALL in 3c /KWH or less areas - on the other hand, altcoin mining has a lot more leeway AT THIS TIME vs cost of electric than Bitcoin mining itself does, and GPUs don't go worthless just because they can't mine at a profit any more nearly as quickly as ASIC do.
Yes, I'm aware that the efficiency of the R4 is nearly identical to the S9, but it COSTS more per TH to start with meaning it is harder to achieve ROI on.