Tesla increases its U.S. Supercharging price to $0.31 per kWh. Assuming a $0.26 baseline last week, that’s a 19% increase.

In a Model 3, which goes 3.8 miles per kWh, that means the cost is $0.08 per mile.

In contrast, a Toyota Prius, which yields 52 MPG, will cost only $0.04 at the current U.S. average gasoline price.

As you can see in the table above, the prices ranged from $0.21 to $0.34 per kWh. Only Hawaii is now lower than what it was before this week, as best we can discern from the Tesla price list. Tesla does say that this $0.31 per kWh price applies, except in places where it does not. And where does it not apply? Tesla’s price list doesn’t say. Until last week, the Tesla price list specified the prices on a per state basis. That previous transparency is now gone, at least in that format.