My mistake. Apparently there are stratifications within Level 2, and I've mostly encountered 240V 3.8KW chargers, which are about 12 mph, but there are also 240

My mistake. Apparently there are stratifications within Level 2, and I've mostly encountered 240V 3.8KW chargers, which are about 12 mph, but there are also 240V 7.6KW chargers at about 26 mph. Level 1 charging makes sense at an office park if it's nearly ubiquitous. If it's a crap shoot whether you'll get a space or not, it becomes much less valuable. And it's still useless for public charging (mostly confined to mall and store parking lots) because you can't leave your car there for the 8+ hours it takes to get a decent charge. BTW, my research says 4.5mph for Level 1 which makes even 8 hours of charging underwhelming. For any space where you can only park for a few hours (3 hours is a commonly enforced limit), then anything less than Level 2 7.6KW is a waste of space. Level 3 chargers are huge and expensive, as you point out, and will probably be limited to dedicated charging stations for the foreseeable future.