Earlier quoted context omitted.
from the other linked article: > While some will be EVs, some of the NGDVs will come with modern, fuel-efficient internal combustion engines. As electric vehicle infrastructure improves, these NGDVs will be able to be retrofitted with the battery-electric powertrain later on.
That doesn't make any sense. All the "electrical infrastructure" needed to drive the typical 45 mile route is a regular old 120V exterior outlet. The retrofit cost is going to probably be double the marginal cost it would've been to just make it electric in the first place. Whoever is making these decisions either wasn't given competitive bids or they're poorly informed about electric vehicles.
Also, there are 30,000 post offices. I'd imagine it will be a long process, even if they just put in 110. one evse requires large amounts of continuous current, let alone with a parking lot full of vehicles.