Bitcoin Forum

is this worth buying 100 pieces of antminer S5 for bitcoin mining ? and running them in a country where electricity cost is much lesser per kw

What is your power cost per kWh?

0.13 USD per KWH

If your power is over $0.10 I would not recommend getting into the Bitcoin mining business, at least not for now.

Antminer S5 can get you 1.15 TH/s with about 600W of power usage. Your power costs would be about $56.00 per month and your monthly profit would be only $25.00 based on the current Bitcoin rate and difficulty. This month the difficulty is expected to increase, so your profit would even decrease.

You can use the profit calculator here -  http://www.coinwarz.com/calculators/bitcoin-mining-calculator/?h=1155.00&p=600.00&pc=0.13&pf=0.00&d=47610564513.47130000&r=25.00000000&er=221.98970000&hc=400

You probably won't even get the money back for the hardware you would spend.

Win 1700 USD per month

Better buy here
https://www.hashnest.com/

This is a cloud  mine of Bitmaintech.

S5 Maintenance Fee:$0.001175/GHS/Day  40,713 month  x 100=  4071 USD

Yours 55,224 USD   x100 = 5524 USD

was about to say that's not cheap at all . for that many miners to be safe he would need a building out side his home or i would, one with 3 240 lines at 50 amps or better and at least two 120 lines for external add ons to plug in stuff to be safe,  would even need a business account in  my state for that much power usage per month  which is cheaper then homes get here. I'm at 8.55 cents per KWH to me that's to much compared to some in US at 4 cents per kwh .Id kill for that if i could get it and not move to Washington state.

SO to the OP bear in mind if you plan to run that many in your home there is a lot more involved then just plugging that many miners in your home .if that's the plan, but then there that's  poss of blocks being hit sooner and faster with that much hash pumping out all the time  :) .
 
 

difficulty in 6.5 days: 48882648479.1 or less so not to bad but still the power cost would be a nite mare for me .

You could also try Betarigs if you want to try and see how Bitcoin mining works, without having to subscribe to a contract. I advise staying under $0.0012 per Day.

The big difference is place such as betarigs you pay a premium for rental.  It is more then some cloudmining, and a lot of home miners.  That is part of the reason they offer hash here is it's can bring in more then mining just BTC.

I would suggest not renting unless you need it for a specific special reason.  If you want to play with mining with little cost look into stick miners, it will not ROI.  But It will let you learn about mining.