No BTC price boost means only cheap power mining makes profit.


Coins were 19990
Coins are     6750


an s-9 earns about $3.56 a day
power cost at 10 cents is about  $ 3.41    a 15 cent profit.

power cost at 9 cents is about   $ 3.07    a  49 cent profit
power cost at 8 cents is about   $ 2.73    a  83 cent profit
power cost at 7 cents is about   $ 2.39    a  $1.17 profit
power cost at 6 cents is about   $ 2.04    a  $1.52 profit
power cost at 5 cents is about   $ 1.70    a  $1.86 profit
power cost at 4 cents is about   $ 1.36    a  $2.20 profit
power cost at 3 cents is about   $ 1.02    a  $2.54 profit


note 4 cent power  in big scale 100 mega blocks is pretty easy to get.

and each s-9 make about 2.20  so  at 440  for a s-9 with a psu a 200 day payoff  add 30 days for a 15 percent dead gear rate and

buying 80000 s9's   sounds good

The solar array that buysolar owns is pretty much paid off.  we estimate 1 cent a kwat to maintain it.

So we sound be good to go well  the problem is the size of the array is 200000 watts  which is 33.3 kwatts 23/7/365 at a penney

which is about 20 s9-s.

or 20 x 3.56 = 70 a day - 7 = 63 a day profit and it shrinks  with more diff growth.

so even a 1 cent power setup struggles due to expansion and diff increase.