Looking for some guidance/tips on mining in a solar powered warehouse

My family just recently installed solar panels for one of our buildings (office/warehouse), mainly for tax incentives and cheaper energy cost. The building generates on average between 800 and 1,000 KWH (kilowatt hours) depending on the time of year. I'm strongly considering buying a dozen or so mining rigs, maybe more, but want to first make sure it will make sense/be profitable.

A friend of mine is selling bitmain S7 miners. He has a plug and play set with switches/PSU's that powers 20 miners. He's selling the whole set for $17,500.

A couple questions for those with experience.

1) Is that a fair price for the whole set of S7's? I might be able to negotiate the price down a bit more

2) Would it make sense/be profitable with 20 miners? Or would I need more?

3) Does it make sense to start buying bitmain equipment now with the potential SegWit 2.0 changes around the corner?

Any help would be much appreciated!

Submitted July 09, 2017 at 12:24AM by Zand_
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