Valdemar said:
What people who set prices for charging don't seem to understand is that less revenue is better than no revenue. By setting charging prices high they hope to bring more money in but it does the exact opposite as at such rates very few will actually use the chargers. Additionally some of those who are thinking about getting an EV will likely be discouraged after finding out the cost of charging at public places, so it also negatively affects future markets. For example if a charger is available where I park my car in many cases I wouldn't mind charging "just in case" if the price was up to $1/hr, but will only charge if I must at $2/hr. Most on this forum would agree I think. If public commercial charging infrastructure is doomed then high prices can only accelerate this process.
If a pay-to-charge L2 charging infrastructure has any future whatsoever it will be with plug-in hybrids, not pure EVs. Most pure EV drivers will have figured out how to get the cheapest possible electricity rate for home charging, and many (about 30% according to a recent survey I saw) have solar at home and charge "for free". Therefore most pure EV drivers would never use public L2 charging at any price that could come close to being profitable for a charging station operator, except in exceedingly rare "emergency" situations or for the novelty of it when they first get their car. Not only are public stations too expensive, but they're also too unreliable. If we were to make use of public charging for some sort of special trip, not only would we have to swallow the cost, but we'd also have to face the possibility that when we arrive the charger could be in use or ICE'd, leaving us stranded. Hence the phrase "just-drive-the-Prius."
So if an L2 infrastructure would ever be profitable, it will be as an alternative to buying gasoline for PHEV drivers. As long as the pricing is low enough so that it's cheaper than gas for a Volt or PiP driver, and as long as the units are conveniently placed, there could be a business model there. The problem is the places where chargers would be convenient (restaurants, malls, hotels, etc) would probably be much better off attracting new business and earning goodwill by just eating the cost of electricity and keeping the charging free. For example, back when charging was free at Walgreen's and Ikea, I would be excited to go there and support these establishments, even going out of my way to stop by. Now that they both charge ridiculous amounts, I feel spurned and will avoid each as much as possible. They'd be better off in my mind if they never installed charging stations at all.