3 ms·
> If you want to cut the voltage by 60%, from 120V to 48V, then you’ll have to triple the thickness of all of the conductors in your walls. And that's not even
by throw0101a 6y ago
> If you want to cut the voltage by 60%, from 120V to 48V, then you’ll have to triple the thickness of all of the conductors in your walls.
And that's not even getting into 240V appliances like dryers, ovens, cooktops, and (increasingly) EV chargers.
The (e.g.) newly released VW ID.4 can charge at up to 11 kW, which at 240V, would use 45.8A, but (IIRC) you can only use up to 80% of a circuit, so you would need wiring that could handle ~60A. At -48V, we're talking >200A: those are some thick cables (or a busbar).
So you need high-voltage (i.e. >48V) into the home anyway.