Costs for DC fast chargers are pretty high, going by what I've seen at the Out of Spec podcasts. They had a single DC fast charger donated to them they could have had hooked up for only $30,000 - and they were literally in a former electrical powerhouse for a Colorado utility. Plenty of power in the building and easy to run the power lines.. But they got swamped with offers of other fast chargers from other manufacturers and decided to do something a bit bigger with 3 or 4 chargers. That pushed the installation costs to about $45,000, but they were still taking bids. Anyway, they had a pretty good situation as they started with plenty of 3-phase power in their building. (Their idea is basically to use these chargers to learn more about the whole back end we never see).
In Arizona I follow the NEVI funding in a lost-cause hope of seeing some chargers open up rural areas of the southwest, particularly the huge Navajo reservation. If you read the guidelines, 80% of the cost of the installation is paid by the feds, 20% by the private owner of the business. NO state funds supplied, and while the installation is 80% paid, there are a bunch of ongoing expenses (snow removal, repairs, etc.). The NEVI docs for AZ make mention of disadvantaged communities and the fact they simply can't make a profit off the electricity sales, but they don't seem to mention offering state money to help out. More like subtly beg for other federal funds to cover more costs, I guess.
Anyway, for all the work and time put in so far, AZ has identified 21 spots where they want to see chargers added (all along major corridors that already are mostly covered with Superchargers). They (AZ) are soliciting bids, which seems a bit odd in that a state agency (DOT) is ramrodding this, but 'no state funding' is available for the installations These sites will no doubt be of great help to non-Teslas, but the earliest constructions - even permitting - is at least a year away. Then there will be a 2-year process of selecting a few more sites along a few more-rural corridors, but any construction there won't start until 2028.
I think it's going to be private companies (Tesla, EA, EVGo, Chargepoint and Blink) that will have to get the job done for the next 5 years. I do think the govt will have to pay for a bunch of rural fast chargers eventually.
I also wonder if we aren't all sort of making 10-year plans assuming battery charging tech doesn't evolve. Right now we think of ways to take advantage of a 20-40 minute delay on trips. That means charging at locations that provide something worth doing for 20-40 minutes, meaning shopping on the provider's end. But what happens if 5 years from now the common batteries put in EV's have 10-90% charging in 5 minutes AND 400 mile range? Kind of alters the whole model, because now you neither need to find something to do while charging, and the provider also can't count on you spending 20-40 minutes in their business. You can just charge up and go down the road to another business, like the gas model. A lot less Carls Jr meals. I have no idea what it does to costs to have a 5-minute charge session, but it has to lend itself to different businesses. (And enable non-home charging as well for all those apartment dwellers hoping for level 1 and 2 installations.)
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