since 2012 I am interested in bitcoin. My first tests with mining were when ASIC was not available (or in production), so I was mining with my Nvidia card.
I now got a chance to get some power for free, so I searched for the best GH/$ without import hassle. Currently the Antminer S1 is the cheapest device in this category.
OC'd I got them to work with 210 GH/s each, totaling 630 GH/s (stats from devices and btcguild).
With this mining-power, the ROI is somewhere in april - without power-costs! Calculating power-costs would make the whole thing unprofitable for me.
In my opinion, most people mine for cash - but how? Even with latest devices, the ROI is way to far. Are these people mining for a future price of 1,000$/btc?
For me, mining is fun, its the tech that makes me have fun with bitcoin. I don't need and I don't want to sell my bitcoins right away - maybe later.
I would love to see some responds with your opinions. Thanks.
I am in New Jersey 15 cents a kwatt. It is just about impossible at 15 cents to make money.
I look for a deal here and there. It involves a lot of work and time. It involves decent luck. I also have some miners at discounted power rates 2 antminer s-3's mining at 840gh and they pay only 2.4 cents a kwatt. if I could run a lot at 2.4 cents it would be easy.
This oct to march I will run at least a kwatt in house even at 15 cents as they will give me heat and reduce my heating bill.