What everyone (except one person) fails to realize in this thread is that different miners will consume different amounts of electricity per TH/s then can do. As a general rule, newer models (based on when they were initially released) tend to be more efficient then older models. Since a cloud mining company would need to be constantly buying newer hardware their average age (and efficiency) of their farm is going to be worse then what you can buy with the latest and greatest
please put some links with the latest hardware and let's make some calculations after that
it seems new :
http://www.spondoolies-tech.com/products/holiday-special-sp20-mini-farm-batch-2 you can earn up to 2 USD per DAY Smiley
Hardware cost = 5500 USD
Electricity = aprox 10 cents per hour
This one would have roughly 21 TH/s of mining capacity and would consume roughly 18 KW every hour they run, or 432 KwH per day (
source). Assuming you pay $0.09 per KwH (which is low and below the national average) then you would be spending roughly $38.88 per day on electricity.
Based on current difficulty you would earn roughly 0.2002
BTC per day assuming you have 100% luck. Based on a $250 price of bitcoin that works out to $50.05 per day of revenue. If you were to assume the price of bitcoin is $200 (where is was only a few days ago) then you would earn only $40.04 per day which although is above the cost of electricity, it does not give very much room for error.
http://www.bitfury.org/productsBF4500
Cost : around 10,000 USD
Specifications 4.5TH/s
3000W
you can earn up to 15 USD per day without electricity cost.
Please correct me if I am wrong.
I don't see where you got your cost from. However I would agree with the rated hashrate and electric consumption.
The gross revenue would be closer to $10.72 assuming a price of $250 and closer to $8.58 assuming a price of bitcoin at $200. In order to realize $15 of gross revenue you would need to assume the price of bitcoin is ~$350.
Based on 3 Kw per hour of use of this device, you would use 72 KwH per day which works out to $6.48 based on $0.09 per KwH.
I am not sure what your point is. The SP20 is an older model miner