In our condo, I see about 6 full EVs and 2-3 more plug ins. They often charge on site. We have 125 units, so probably 200 vehicles, so it's a low percentage. But I do wonder if they understand the deal.
The charging rate here could well be under 48 cents.
My step son rented a Tesla Y to drive to Cincinnati and when we looked at how much he paid to charge, it was unimpressive, he was surprised. And he stopped three times to charge it for a 440 mile trip, but he drives fast, like 90-100. He drove us back from Orlando in my GTI and was running over 100 much of the way.