what is your rate? the usual 0.05?
i would advice solar only if you want to start small, and so with a small solar panel setup, which will cost more, then you expand everytime that you break even
but i would not go big with because it require an additional big investment on top of the miners
I could be wrong but I think in the group buy they offered like .07 if that coop group could bring a lot of machines. I don't think it was to the .05 mark. But I could be wrong on that.
Solar just is unrealistic for mining as most use so many watt's. Unless you only run a small machine or two the cost of panels is surprisingly high, add batteries to it and you are in a long term investment of solar.