That's not that easy for few reasons 1. gas requires some energy to extract, refine, transport, sell . With electrical cars, demand for gas will go down, so an

That's not that easy for few reasons 1. gas requires some energy to extract, refine, transport, sell . With electrical cars, demand for gas will go down, so anything that depends on gas being sold will also go down, which, in turn, will result in even less demand for the electricity. 2. It makes more and more sense to get solar panels on your roof, especially with electric car in the garage. More panels means electricity surplus. 3. electric cars have less parts and last longer, which means less manufacturing, less mining, less transportation and that will result in less demand for electricity.