Would it be nice to have both a 120 @ 20 amps, and a 120 @ 30 amp plugs on them just like any generator. And 5 USB's @ 15 watts, anything to draw a crowd to energy.
It plugs familiarity into the next generation.
Another next step is going opposing sine wave Powerwalls in twins @ 240 volt. Just take my money. It works in legacy sticks & bricks USA.
The physics scale on both legs.
Honda did this in 1998, in their generators.