Electric cars are pretty pointless if the electricity used to charge them comes from non-renewables,
Not so when the grid power plant is twice as efficient as the internal combustion engine that powers the car.
Electric cars have a FAR lower lifetime CO2 footprint and a FAR lower lifetime energy footprint. Since energy correlates closely to dollars, it means electric cars have a far lower total cost of ownership. There are a lot of comparisons online like this one; I picked it because I liked the graphs.
These graphs are for Vancouver CA in 2018, so energy costs are similar to the US; however energy is represented in megajoules - there are 3.6 MJ in a KWH, and 1 MJ = .37 horsepower hours. It assumes 150,000Km of travel over the life of the car, about 93,000 miles.
Lifecycle CO2 costs (these include extracting & transporting oil)
