Why would a lower voltage save money?
Power is the same, slightly higher current requires heavier wiring.
I think to domestic appliances shoukd run at at least 1kV, which would save huge amounts of copper. 
Why would a lower voltage save money?
Power is the same, slightly higher current requires heavier wiring.
I think to domestic appliances shoukd run at at least 1kV, which would save huge amounts of copper.