It is not, or not directly.
The fuel of the local electric generators can be coal, which is a US fuel, or natural gas, which is generally US, not imported. But may be petroleum, and that is imported.
The nice thing about your local power station is that more and more it has a growing green energy element. Here in CAlifornia, there are wind and solar components of the electric grid. That does cut import dependencies.
A non-electric car is hard to convert to french fry fuel, and hard to get off the imported oil dependencies.