Measured by revenue less cost of operations (opex) and cost to carry capex (interest or opportunity cost) is there any proof that non-Tesla DC fast chargers are making any money from charging? Breaking even?
If they are, why aren’t more companies getting into installing chargers for profit?
If they aren’t, how do we ever get to sustainable, operational infrastructure that meets consumer expectations like the gas stations they’re used to?
They are profitable - just not very. You also have to take into account that there’s not one but several people trying to make a buck on each charging session: The energy provider, the charge point operator and the provider of the payment service module. The profit margin for each of those is very slim.
You get auto companies to realize that charging is part of the utility of what they are selling - and those then set up/operate charging infrastructure at cost (which is what Tesla is doing).
Just FYI: Most places there is already adequate charging infrastructure and the buildout is keeping pace with the rate of adoption.