The Netherlands (16,040 sq mi) is about half the size the size of Greater Los Angeles (33,954 sq mi) and has 17 million people (GLA has about 18 million people). I charged at FastNed (https://fastned.nl/en/locations
) from 40% to 80% at 50 kW for about 36 minutes. The choices at the ABB charger are (left to right):
-AC 43 kW for a Renault ZOE (not for sale in the USA). This ZOE has an on-board AC charger of 22 kW and the AC also drives the Motor/Dynamo to charge another 21 kW straight to DC.
The current 50 kW chargers are being upgraded to 175 kW.
I don't have a description at FastNed and ended up paying EUR 17.70 (USD 20) which means EUR 0.59 per kWh (USD 0.67). I think this is too expensive since I can charge at work (230 Vac, 16A @ EUR 0.25 per kWh (USD 0.28) and at "home" (City chargers) 230 Vac, 32A @ EUR 0.35 (USD 0.40) per kWh.
What do you pay in the USA for fast and slow charging?
In the US the price will vary by region and by company.
For example EVGo in Florida will typically charge $.35 per minute for a 50kW charger. This equates pretty close to $.35 per kWh since you get just about 1kWh per minute.
In California, EVGo will typically charge $.20 per minute on the 50kW charger.
In both those cases, there is a connect charge if you are not a member. So if you charge frequently away from home, you can buy a monthly membership for about $10 per month, which also lowers your rate per minute: https://electrek.co/2018/03/01/evgo-speed-ceaper/
You definitely have to shop around by state and by the provider.
The national average for folks charging at home is $.12/kwH, which the US EPA uses when calculating costs. https://www.fueleconomy.gov/feg/labe...ic-label.shtml
Each state and electrical provider will vary quite a bit. Some utilities have tier rates by time of day. My utility is flat rate at $.086 per kWh
Once you factor in any per minute and connect fee, the kWh cost can be pretty steep. I tapped into an EVGo 50kw charger for 20 minutes, which added about 20kWh charge. The cost was $5.95 + $.35/minute for a total of $12.95 for 20kWh which is about $.65 per kWh. So not too different from what you experienced. If there was a ChargePoint charger nearby, the cost for the same would have been $9.95 or about $.50 per kWh.
A little long winded, but I hope that helps.