Megawatt(-hour) isn't impractical. It shouldn't be strange that a bus needs significantly more energy storage than a car that might use 100kWh. And Megawatt pe

Megawatt(-hour) isn't impractical. It shouldn't be strange that a bus needs significantly more energy storage than a car that might use 100kWh. And Megawatt peak power isn't much, either. A decent Tesla has half a megawatt peak power. A bus on hilly routes or for highway speeds could and maybe should have double that. Charging infrastructure needs to be done right, though. To make >1 Megawatt charging work well takes some careful thought. But it's not ultimately harder than a few fast DC chargers ganged together (probably need battery backing to make the peak charging cost lower, but ultimately, if you have lots of buses charging a lot, it's not super surprising if you need a good grid connection... but that's half of why you pay for electricity, so that's ultimately not a problem, either). That's actually a valid option.