Electric vehicles really are better for the environment than hybrid vehicles that have both gas and electric motors.

We got the first to replace our 10-year-old, gas-powered Subaru, and after only two years of driving, the E.V. has created fewer emissions over its lifetime than if we had kept the old car. It will take our second E.V. only four years to create fewer emissions over its lifetime than the 2005 hybrid Prius it replaced. That’s counting the production of the batteries and the emissions from charging the E.V.s, and the emissions payback time will only continue to drop as more emissions-free wind and solar power comes onto the grid and battery technology improves.

The author of course did not look at having one less car, and substituting an ebike or mass transit for part of their driving, which would have lowered emissions by a larger amount.

  • Hegar@kbin.social
    173·
    1 year ago

    We got the first to replace our 10-year-old, gas-powered Subaru, and after only two years of driving, the E.V. has created fewer emissions over its lifetime than if we had kept the old car.

    That’s no way this is true, if the carbon footprint of the manufacture of the new EV is considered.

    Most of the recent studies I’ve seen estimate over 40% of life cycle carbon debt from cars is making them. ~15 years ago I heard Peter Singer say it was over half.

    If you need a car, don’t ever buy a new one.

    • Sonori@beehaw.org
      10·
      1 year ago

      From what I’ve see it can very with make and model, but typically about seventy five percent of a gas cars carbon emissions come from the fuel alone, which goes up to ninety percent if you count the carbon emissions of making and delivering that fuel aswell.

      By contrast about sixty five percent of an EVs emissions come from our current mix of electricity generation, and thirty five percent from manufacture.

      Also worth noting that the portion from manufacture is so large becuse the total emissions are so much smaller, as the EV only requires at worse about twenty percent of the gas cars total emissions. Given the average life span of a car is 12 years, two years to pay back the additional five to ten percent manufacturing cost is quite reasonable provided the author lives in a place with a good renewable energy mix.

      an illustrative estimate of lifetime emissions on theoretical aver 300 mile range EV vs an average new gas car. https://www.epa.gov/system/files/styles/large/private/images/2022-06/lifecycle-ghgs-ev-gas-cars-670px.png?itok=2RCNUe6A

      The average gas passenger vehicle will produce about 4.6 tons of carbon dioxide, about twice its weight, each and every year it is on the road.

      In short, given the choice between a new electric car or a used gas car, there electric is the better choice if you plan to use it for more than two to four years.