EV batteries can be charged by plugging the vehicle into a charging station. The batteries store the electricity until the vehicle is driven. Under the hood, an EV consists of an electric motor, one or more controllers, and batteries. The controller governs the amount of electricity that flows from the batteries to the motor when the driver steps on the accelerator. The motor changes electrical energy from the batteries to mechanical energy, which makes the vehicle move.
Electric vehicles offer a non-polluting alternative.
Carbon dioxide, which is not an air pollutant but may contribute to the possible risk of global warming. EV Efficiency Vehicle efficiency is measured by how much of the energy a vehicle uses actually makes the wheels move. An EV is about four times more efficient than a gasoline vehicle. If you factor in the energy used in creating gasoline at a refinery or electricity at a power plant, EVs are still twice as efficient as gasoline vehicles. Unlike a gasoline vehicle, when an EV is stopped in traffic, it doesn't use fuel just to keep the motor running, and this reduces fuel consumption.