If we’re moving to a new standard I’d much rather we standardize around 240V DC with an improved plug design.
You’d have HUGE savings on the copper required for a standard home, plus you’d get a substantial increase in power capacity.
You’d have HUGE savings on the copper required for a standard home, plus you’d get a substantial increase in power capacity.
And for that matter, I wouldn't want 240VDC on utility poles either. If a line goes down, it's so much more dangerous.
The more sane solution would be a high capacity DC converter installed next to the line transformer that feeds your street. DC infrastructure inside the home makes total sense at moderate voltages. City scale DC at line voltages is honestly terrifying.
https://en.m.wikipedia.org/wiki/Electrical_injury
It is, however, considerably more complex to make DC circuit breakers or ground fault detection devices.
Utility poles are 10’s of thousands of volts (AC), I guarantee you that will cook your goose AC or DC.
Most of the copper is spent on carrying hundreds of amps at low voltage not the 12V lanes.