[ryathal]

The charging infrastructure is the real killer, you need 1:1 charger to vehicle or some kind of smart charger that can plug into X vehicles and charge each up overnight. There's also the power draw requirements that will take, so it may not actually be able to install sufficient charging on existing sites. There's also the maintenance on the chargers, which is admittedly small. Switching to EV means for the same budget you get say 20% less vehicles (assuming same cost), just because you have to spin up the charging.