So you have so much PV capacity that you don't buy any energy, and the energy for the EV would have otherwise been wasted? That's unusual.
No Brian, and yes, its the argument for people that tell me Im still burning non-renewables in the form of coal.
The solar Array is generating Electricity every day (up to 5kw) and the Grid pays me more for what I generate during the day, than what I pay to buy it back at off peak rates at night , and I only charge the car once every few days, at Night.
The charger is 3.3kw so even if I plug it in during the day its still getting all its power for free unless its a cloudy day.
Of course I sometimes use more than that & still pay for electricity for the pool heater , clothes dryer, milling machine & stuff , its just the car thats free wink wink .
If we go away for a winter as often is the case the PV keep generating and builds up a credit, so yes a lot of the time we have excess electricity, but it dosen't go to waste, someone else is paying us for the use of it.
All in all yes, The car costs nothing to run.