Wait....I thought SC costs depended on the location of the SC. In other words. California and Hawaii costs are the highest because the cost of living is the highest in those areas.
OR
I thought that SC costs were a variant of local electricity prices.
They are related to the local electricity costs, and potentially some other metric now that we are unaware of (because they vary from station to station now, not just state to state). The website now says $.31/kWh everywhere in places where they can charge that way. If, say, Texas is one of those places (as I can’t see costs in my car), that is way more expensive than the cost of gas, which was at $2 when I was there over Christmas.