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> Then there's the diesel cost. A large bus must get ~ 10 mpg highway, but a city bus is all stop and go - disastrous for a vehicle as massive as a bus. Let's say it gets 4 mpg. $4/gal diesel * 30 mph average speed / 4 mpg = $30 / hr on diesel.

We've already got decent electric bus options implemented in a number of cities, and they're only going to get better. That's before you consider hooking them up to wires like a sensible transit network.

Municipal fleets often make it a point to use alternative energy with buses, like CNG before batteries were a practical option. They do it for public image, because of the urban air quality issues with old-school diesel exhaust, and for cost reasons.

A more interesting point is pavement. Public buses, garbage trucks, and schoolbuses are some of the most significant non-weather-related causes of road wear, and this is only going to get worse the heavier the axle weight if you try to run long-range battery banks. Road wear scales with axle weight raised to the fourth power. Arguably there is a case to be made for the articulated or even bi-articulated designs if it allowed you to drop axle weight, with significant benefit to the Packed Like Sardines problem. Articulated EVs have a lot more freedom to redistribute the weight and to power individual axles more intelligently.



Its not obvious to me that EV buses (or any EV vehicle, frankly) make sense. [1]

Hybrid and CNG make a lot of sense though.

[1] Run the math and hybrids come ahead of EVs in personal vehicles for GHG emissions. For buses it would be more skewed in favor of hybrids.




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