11 votes

Elon Musk should come clean: Tesla’s emissions are rising

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14 comments

  1. [3]
    lonjil
    Link
    I actually think plug in hybrids would be better for the environment in the near term. Right now one of the biggest limiters on pure battery electric vehicles is batteries. We just don't have...

    I actually think plug in hybrids would be better for the environment in the near term. Right now one of the biggest limiters on pure battery electric vehicles is batteries. We just don't have enough of them, and they're expensive. Theory here is that if most people who want long range cars only need that range rarely, a car with half or even a third of the battery capacity could be enough for most journeys, with the occasional longer trip using gas. You could then sell 2 to 3 times as many cars with that benefit, and they might be cheaper too.

    4 votes
    1. [2]
      Autoxidation
      (edited )
      Link Parent
      I hate to break it to you, but people want PHEVs even less than BEVs. PHEV sales numbers are dropping while BEV sales are increasing, while BEV sales have eclipsed PHEVs for some years now.

      I hate to break it to you, but people want PHEVs even less than BEVs. PHEV sales numbers are dropping while BEV sales are increasing, while BEV sales have eclipsed PHEVs for some years now.

      2 votes
      1. lonjil
        Link Parent
        I know that. But in terms of reducing CO2 as much as possible with the limited battery production we have now, PHEVs seem like an overall better choice.

        I know that. But in terms of reducing CO2 as much as possible with the limited battery production we have now, PHEVs seem like an overall better choice.

        2 votes
  2. [12]
    Comment removed by site admin
    Link
    1. [9]
      Weldawadyathink
      Link Parent
      Quick side note: electric cars on dirty grids is almost always better than internal combustion cars. It is far easier to regulate emissions on a handful of power plants than for every car on the...

      Quick side note: electric cars on dirty grids is almost always better than internal combustion cars. It is far easier to regulate emissions on a handful of power plants than for every car on the road. How many people replace their catalytic converters when they wear out unless the government forces them to? Also, as the grid transitions to renewables, local electric cars get a smaller carbon footprint. Local gas cars still blow just as much smoke.

      That being said, you are correct. Transparency is always good.

      9 votes
      1. bloup
        Link Parent
        This is true, but I think more importantly is the basic idea that an ICE basically is a dirty power plant, but even worse, it's a dirty power plant that can't even take advantage of economies of...

        electric cars on dirty grids is almost always better than internal combustion cars. It is far easier to regulate emissions on a handful of power plants than for every car on the road.

        This is true, but I think more importantly is the basic idea that an ICE basically is a dirty power plant, but even worse, it's a dirty power plant that can't even take advantage of economies of scale to make power.

        7 votes
      2. [8]
        Comment removed by site admin
        Link Parent
        1. Autoxidation
          Link Parent
          I find this argument to be a red herring. For starters, a 20% reduction is nothing to scoff at, and it's better than the status quo of continuing to push ICE vehicles. Additionally, one of the big...
          • Exemplary

          I find this argument to be a red herring. For starters, a 20% reduction is nothing to scoff at, and it's better than the status quo of continuing to push ICE vehicles. Additionally, one of the big benefits of EVs is their emissions aren't static. As fossil fuel powerplants close in the future, an EV will benefit from those changes, and it will allow time for EVs to trickle into the used market to those that couldn't afford them new.

          China's and India's grids aren't as dirty as you imply. India had almost 25% electrical generation by non-carbon sources (hydro, wind, solar, nuclear) in 2019. The USA generated about 37% of its electricity from the same sources in 2019. China generated 30% of its electricity from the same sources in 2019.

          12 votes
        2. [4]
          Greg
          Link Parent
          Obviously CO2 is the critical global issue, and any analysis on real world impact there is helpful, but smog and particulates matter on a local level too. When you've got 10M+ people living on top...

          Obviously CO2 is the critical global issue, and any analysis on real world impact there is helpful, but smog and particulates matter on a local level too. When you've got 10M+ people living on top of each other there's a significant public health win just from cleaning up the air they're breathing.

          3 votes
          1. [4]
            Comment removed by site admin
            Link Parent
            1. [3]
              Greg
              Link Parent
              Huh, interesting - I'll admit that I just took your word on the CO2 numbers, so I didn't realise the link had particulate data as well. I was thinking of it specifically as a local issue: my...

              Huh, interesting - I'll admit that I just took your word on the CO2 numbers, so I didn't realise the link had particulate data as well.

              I was thinking of it specifically as a local issue: my understanding is that there's a meaningful fall off in exposure even between roadside and non-roadside residences, and a further fall off as you move out of the city, so (unlike CO2) pumping out a similar quantity of pollution 20 miles away from the people does actually improve matters. Wasn't expecting higher sulphur and slightly worse PM 2.5/10 numbers, though, and I won't claim to understand how that skews things compared to distance.

              Time to pin more hopes on the economics of cheap solar edging out legacy coal, I guess!

              2 votes
              1. [3]
                Comment deleted by author
                Link Parent
                1. skybrian
                  Link Parent
                  It doesn’t seem like coal has any advantage over natural gas at this point? (That is, properly winterized.) I agree that newer geothermal techniques look very promising. However, It seems hard to...

                  It doesn’t seem like coal has any advantage over natural gas at this point? (That is, properly winterized.)

                  I agree that newer geothermal techniques look very promising. However, It seems hard to tell which energy technologies will win? A lot of storage technologies have been proposed and even tried, but whether they succeed or not is going to depend on technical details affecting costs that they tend not to talk about and aren’t visible to us. I guess it’s good that there’s competition.

                  2 votes
                2. [2]
                  Comment removed by site admin
                  Link Parent
                  1. spctrvl
                    Link Parent
                    Methane might be a better option for power to gas, it's better for shipping and storage and would let us reuse a lot of existing gas infrastructure. Plus, with methane containing carbon, excess...

                    Methane might be a better option for power to gas, it's better for shipping and storage and would let us reuse a lot of existing gas infrastructure. Plus, with methane containing carbon, excess capacity could be used for sequestration.

                    1 vote
        3. [2]
          Weldawadyathink
          Link Parent
          Thanks for the source. I know I had seen similar stuff but I didn’t feel like finding it again. Yeah, no kidding. This is probably the worst problem with electric cars (and all electric devices)...

          Thanks for the source. I know I had seen similar stuff but I didn’t feel like finding it again.

          That is also not even getting into the rare metal mining trade.

          Yeah, no kidding. This is probably the worst problem with electric cars (and all electric devices) right now. I wish Tesla would do something about it. With a company their size throwing their weight around, something might even change.

          2 votes
          1. spctrvl
            Link Parent
            They did drop cobalt from their new battery chemistry. Not the only problematic battery component, but probably the worst.

            They did drop cobalt from their new battery chemistry. Not the only problematic battery component, but probably the worst.

            2 votes
    2. [2]
      skybrian
      Link Parent
      Maybe, but I’m not sure how many Tesla buyers are primarily environmentalists at this point? It seems like more of a luxury good.

      Maybe, but I’m not sure how many Tesla buyers are primarily environmentalists at this point? It seems like more of a luxury good.

      3 votes
      1. Autoxidation
        Link Parent
        Some of us are. It's nice to have an otherwise attractive EV option too, that isn't as pricey as a Porsche.

        Some of us are. It's nice to have an otherwise attractive EV option too, that isn't as pricey as a Porsche.

        4 votes