When we bought our new car last year, we compared the cost of owning an electric hybrid vs a conventional car. Let’s say gas is $4.00 per gallon, savings is 25 miles per gallon, and you drive 12,000 miles per year. Your savings in gas will be $1,920.00 per year. If the difference in the cost of the cars is $15,000, it will take 7 years and 10 months to break even; and that’s if you pay cash. If you finance the car, it will take even longer.
But, let’s say you bought the electric car to save the planet!
A 2012 analysis in Journal of Industrial Ecology shows that almost half the lifetime carbon-dioxide emissions from an electric car come from the energy used to produce the car, especially the battery. When an electric car rolls off the production line, it has already been responsible for 30,000 pounds of carbon-dioxide emission. The amount for making a similar conventional car is 14,000 pounds.
Electric cars recharge using electricity overwhelmingly produced with fossil fuels. For every mile driven, the average electric car indirectly emits about six ounces of carbon-dioxide, and a conventional car emits about 12 ounces per mile. To make matters worse, the batteries in electric cars fade with time, and require more and more recharging.
If a typical electric car is driven 50,000 miles, the initial emissions from manufacture means the car will actually have put more carbon-dioxide in the atmosphere than a similar-size gasoline-powered car driven the same number of miles.