What happened to the power costs? A few days ago they were 0.017 now they are 0.022 which is 29% increase...
1.9GH/s and 2.5W, estimated end of profitable hashing:
0.20 $/kWh - July
0.15 $/kWh - August
0.10 $/kWh - September
One month extra if BTC at $2k. From selling point, it can make wide customer base for future 28nm but needs high volume, no preorders, sell at costs, deliver on time.
How about 0.017 $/kWh
The .017 was just the chip spec, right? Not the full system?
Read it again
kactech is showing the figures for when the chips will be unprofitable given different power costs, and then Ken
*implies* that we would be getting power for 0.017 $/kWh
For what it's worth, this is totally feasible. In addition, in certain locales, it is also possible to not only get a low power rate but also get a tax credit on IT equipment purchased (a category into which mining gear would fall).