Yes it is? The US very much has 220v for power hungry stuff. Things like ev chargers, central ac units, water heaters, electric clothes dryers, etc. It uses quite the variety of different plugs for the various amperages

Edit: technically its 220v*

Plenty can. Just need a 240v 30a outlet or higher

I pay for and use kagi, but it is one of the slowest websites I use, so I am not really sure what this comment is referencing? Is it fast for others?