Quoted from schudel5:And since P=I*V, voltage reduction makes no sense. As you mentioned, volts go down, amps go up but watts stays the same, and ultimately, that's what they're billing you on. I can see penalties for power factor but I don't think most homes have huge inductive or capacitive loads to worry about that.
Also, doesn’t transmission efficiency drop as voltage decreases? Seems like a lose-lose