Rising gasoline prices are attracting increasing consumer interest in electric vehicles at a time when the advantages of electrically powered automobiles are also trending upward. Fulton Schools Research Professor Steve Polzin, whose works focuses on transportation engineering and related areas, says consumers will see more choices in the electric vehicle market and find these vehicles cost less per mile to drive than gas-powered vehicles. There are, however, still some challenges to going electric. The number of charging stations would need to increase significantly if electric vehicle ownership goes up substantially, and a current electronics industry shortage of semiconductor chips essential to electric cars and trucks could constrain the growth of the supply of new electric vehicles.