Just yesterday I recorded an incredible conversation with the archivist from Ford, formerly of Coca-Cola, about the history of fueling infrastructure in this country and let me just say... when you listen to that conversation, you'll understand why we haven't cracked the code on EV charging yet.
The short version is: if you're building fueling stations in order to be in the actual fueling business, you're not gonna make it. Until we see more EV chargers subsidized by other, more profitable businesses, the economics are unlikely to justify the kind of investment in build-out we need to see.
The problem is that a full charge at a fast station takes about 20-30 minutes.
That's pretty good for what your getting! But that's not "scratch off and funyuns" territory.