Thanks for replying to my question tupsu.
Still u managed to neglect electricity cost ( no matter how small that might be where u at) but I get the bigger picture you're trying to paint here and let me tell u: it looks good :-)
However I have another technical question pertaining to ur setup and consequently to the given calculation above. Why not connect ur miners to a switch and through to 1 central PC ( or two ) instead of 11 PC ( if I understood u correctly )?
I believe there are certain mining softwares that enables u to monitor and supervise miners' work from a single station. Not just cheaper but more efficient and cost effective.
Thanks again for sharing this with us and wish u good luck with ur operation.
Let's be clear on it.
Today I have 22xS9 + 1/3 from one S9 and 10x Titan Controllers -total 2200-2300 Mhz
Three months ago, 13.09.16 I had 11x S9 and 10x Titan Controllers -total 2200-2300 Mhz , But that was before the BTC halving and less miners still earned me 0.3 BTC per day,and the electricity went less. More accurate , less about 11x S9 (1300W x11) so about 1000 euro less per month.
My one kW/h is 0,1 euro and sometimes a little less.
I fwatching them all from one computer.