It depends on the charger... some are free, some have an hourly fee, while others bill you by how much power is used. ChargePoint I believe is the largest nationwide network of charging stations. Locally, I have two hotels with ChargePoint chargers. One costs $0.85 per Hour for the first 4 hours.
So around $1.70 (2 Hours) typically to completely charge up the Clarity.
I would also recommend you use an app called PlugShare which shows a lot more charging stations outside of the ChargePoint network.