Re: If America wants to be great again...
As I said, "it's about half the voltage". 110V is "about half" of 220-240V ... almost all household main breaker panels here in the US are 240V, not 110.
It's not just common for households to have 240V at the panel, it's considered extremely odd if it's not available. And this has been true since the 1950s or thereabouts ... Ovens, ranges, water heaters, clothes dryers, HVAC needs, well pumps and the like all run on 240V. Some folks have 240V toasters, kettles, microwave ovens, and other high wattage things like that in the kitchen. Likewise shop tools are often 240V. It's only low-power needs like coffee pots, lighting, clocks, clothes washers, radios, computers, TVs, vacuum cleaners, dishwashers, and that kinda thing that uses the cheaper wiring and breakers of 110V.
Some folks also have 3-phase available at home, in varying voltages and configurations according to their needs. This is mostly for machine tools, water delivery and the like.