a little offtopic maybee, but is there any uppside with all this voltage 120-208-240-277-480V? up here in nothern europe it´s standard with 3 phase 400V to a normal house, ex we have 3*20A 400v to our house, the smal brewery i work on have 3*100A 400v. if it old grid problem that makes this warying in voltage, vy bother in off grid with all this voltage varying and not go for simple 400v 3 phase, i can see the problem with geting 230/400 volt 50hz stuff over there, but it seams its alot of truble with equpment that breaks and runs hot and so on, things i never heard of here, of course things brakedown here too, but you never need to think about if you have the right voltage att home when you buy eqipment, it is 230 or 400, 230 for 1 phase and 400 for 3 phase all you need to know is that you have enogth main brekers. but i guess i miss some thing.