Oops, I just realized I misread your comment. In what way do you mean they require more energy? The per-mile cost of electricity is 60% less than the per-mile cost of gasoline. That would turn a $300 monthly gasoline bill into a $120 monthly electric bill.
The per mile cost is identical with a 60 mpg car with gas at $3.
You apparently do not understand an energy balancing equation....Tell me how much oil you have to burn in order to produce the electricity your darned car uses. It is like using corn for fuel....It takes more energy to produce the so called green energy