Quote Originally Posted by EVO-V View Post
A bus will practically use as much fuel as its worth within a little over a year.

All these are about business cases.

If for instance fuel prices double, then its pretty easy to justify an E-bus that needs to replace its batteries every 2 years.
Depends on the cost of the batteries. With current technology, the cost of replacement batteries plus the total cost of electric consumed will either roughly equal or exceed the equivalent amount of fuel (diesel) needed to fuel the bus to travel the same route (over the same amount of time, example two years).

Considering the system losses with generating electricity, plus the fact that the majority of our power still comes from coal and oil fired powerplants, it might be more efficient to use either diesel or natural gas fueled buses than try to push for electric buses.

If our country's power base has a bigger share into renewable sources of power (like hydro, wind, geothermal, etc) or have a bigger non-polluting power stations (nuclear), then going for electric transport will have a better environmental impact. As it is, we are just burning more coal/oil to recharge a bunch of batteries and at every step in the process, we loose some of that electricity to "system losses".