I just ran these numbers in another thread, this proves why I need to focus on green energy production:

Using the calculator at http://bitcoinx.com/profit/index.php using 1.5m diff, $5.00 BTC prices, $0.103 per KWH

BFL MiniRig is 25200 mhash @ 1250 watts for $15,295, 1.64 mh/$, 20.16 mh/w

Enterpoint Cairnsmore1 is 800 mhash @ 40 watts for $640, 1.25 mh/$, 20 mh/w

BFL single is 832 mhash @ 80 watts for $600, 1.38 mh/$, 10.40 mh/w

Lancelot is 500 mhash @ 25 watts for $500, 1 mh/$, 20 mh/w

BTCFPGA ModMiner is 800 mhash @ 40 watts for $1070, 0.74 mh/$, 20 mh/w

ZTEX 1.15y is 850 mhash @ 38 watts for $1359, 0.62 mh/$, 22.36 mh/w

FPGA Mining X6500 rev3 is 400 mhash @ 17.20 watts for $580, 0.68 mh/$, 23.25 mh/w

GPU mining is 2700 mhash @ 1050 watts @ $2600 for mobo, cpu, mem, psu, 4x 7970s, 1.03 mh/$, 2.57 mh/w

BFL MiniRig's peak profit is at 57 months at $22222.48, 145% return

Cairnsmore1 peak profit is at 57 months at $544.26, 84% return

BFL single's peak profit is at 47 months at $490.04, 82% return

Lancelot's peak profit is 57 months at $243.54, 48% return

Modminer's peak profit is at 57 months at $119.61, 11% return

X6500's peak profit is at 60 months at $25.78, 4% return

1.15y's peak profit is at 60 months at -$75.37, 5% loss

GPU mining's peak profit is at 24 months at -$917.51, 35% loss

Using the calculator at http://bitcoinx.com/profit/index.php using 1.5m diff, $5.00 BTC prices, $0.103 per KWH

BFL MiniRig is 25200 mhash @ 1250 watts for $15,295, 1.64 mh/$, 20.16 mh/w

Enterpoint Cairnsmore1 is 800 mhash @ 40 watts for $640, 1.25 mh/$, 20 mh/w

BFL single is 832 mhash @ 80 watts for $600, 1.38 mh/$, 10.40 mh/w

Lancelot is 500 mhash @ 25 watts for $500, 1 mh/$, 20 mh/w

BTCFPGA ModMiner is 800 mhash @ 40 watts for $1070, 0.74 mh/$, 20 mh/w

ZTEX 1.15y is 850 mhash @ 38 watts for $1359, 0.62 mh/$, 22.36 mh/w

FPGA Mining X6500 rev3 is 400 mhash @ 17.20 watts for $580, 0.68 mh/$, 23.25 mh/w

GPU mining is 2700 mhash @ 1050 watts @ $2600 for mobo, cpu, mem, psu, 4x 7970s, 1.03 mh/$, 2.57 mh/w

BFL MiniRig's peak profit is at 57 months at $22222.48, 145% return

Cairnsmore1 peak profit is at 57 months at $544.26, 84% return

BFL single's peak profit is at 47 months at $490.04, 82% return

Lancelot's peak profit is 57 months at $243.54, 48% return

Modminer's peak profit is at 57 months at $119.61, 11% return

X6500's peak profit is at 60 months at $25.78, 4% return

1.15y's peak profit is at 60 months at -$75.37, 5% loss

GPU mining's peak profit is at 24 months at -$917.51, 35% loss

Interesting calculations here, but I don't think I understand how you came about all of it. What exactly do you mean by "peak profit," and how is that calculated? Apparently you are making some predictions about profitability, but I'm not sure exactly what those are.

You just type the numbers into the calculator. The only thing manual is peak profit, where you keep adding months to the calculator until the "Net profit first time frame" field starts going down instead of up (this is where diff+electricity prices cross from profitable into unprofitable).

Those numbers don't completely apply to DMC because if we pay nothing for power prices, there is no peak profit, it just slows down over long periods of time.