Cool, let me know how much the copper will cost you when you'll need to wire your entire household with at least 2 tons (and I am on low estimate here) of them,

Cool, let me know how much the copper will cost you when you'll need to wire your entire household with at least 2 tons (and I am on low estimate here) of them, because you'll need them thick to drive the increased Ampere juice. Remember P (power) == U (voltage) x I (intensity). As you'll lower your voltage, your intensity will rise to meet the same power consumption. Meaning thick copper wires, at least 2cm diameter, not your current 3mm diameter you currently have.