I agree with your point, but I think an interesting aspect is that a shift toward pushing our transportation energy through the grid might (maybe) lead to some additional economies of scale that could bring down energy costs more broadly. That said, there might instead be diseconomies of scale that dominate - so certainly not a sure thing.
> I think an interesting aspect is that a shift toward pushing our transportation energy through the grid might (maybe) lead to some additional economies of scale that could bring down energy costs more broadly.
I do think that both the economies of scale that this involves and the fact that it makes the shift to alternative (whether "cheaper" or "cleaner" or both) fuels one that involves changing grid inputs without requiring changes to vehicles, fueling infrastructure (once you have the electric charging infrastructure in place), etc., are big gains.
When I was dismissing the idea that electric vehicles had a near-zero energy cost, I wasn't intending to dismiss the idea that electric vehicles offer some real opportunities for improvement.
