[jonhohle]

Why does it have to be a grid? There are plenty of electronic devices that don’t get power from the grid, some at dwelling scale. What prevents power from being delivered by truck, just like fuel is today? (Density is definitely an issue, but technology evolves)

[throwaway50606]

Haven't really considered that. I guess the problem is conversion loss. If we're making some sort of fuel at power generation points, why not use that fuel in cars instead of doing another conversion back to electricity? We could make hydrogen or even synthetic gas/diesel and just keep the cars we already have.