Re-read original post, OP stated he didn't care about profit, just raw Bitcoin income.
Electric cost doesn't matter in that case (usually).
Offcourse, his opinion about this fact might change after he/she receives a hefty power bill from his power company... But indeed, this is what i also understood after reading the OP.
True. I was just concerned OP may not know what the cost is likely to be or that the earnings are likely to fall. It is likely to cost him more than $3 to earn $2 in Bitcoin. It is also not clear if OP understands difficulty changes and halving.
No need to perpetually go in a loop speculating about OP. The cost of electricity does not apply in his calculation, he already specified this in OP. We talked about me selling him the hardware he'd need. The concern is really just shipping costs.
Regardless, he understand plenty well the power consumption. No need to turn this into multi-page of conjectures.