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The thermodynamics of electric vs. internal combustion cars
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this post was submitted on 03 Sep 2024
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This varies from region to region. My region is primarily hydro, in fact, about 0.1% is non-renewable. So, depending on where you live, electricity may be more thermally efficient than ICE. Also, you're ignoring the pollution control aspect. Even if your hybrid is more thermally efficient, it will still generate more pollution than any electrical generation method except perhaps coal, and I'm not certain about that. Your car's ICE engine also won't benefit from any of the upgrades to the electrical grid, while your electric car will. This also may not matter in some regions, since some places like America in general, don't expect to see a reduction in coal use for a decade or more. And yes, I'm aware that the electricity generation mix in America varies a great deal from region to region.
ACEEE actually thinks that Prius Prime emits the least pollution for cars today, including EVs.
https://www.aceee.org/greener-cars
EVs universally weigh more, leading to more PM2.5 / micro plastics pollution from the brakes and tires. (Remember that Prius / Hybrids also have regenerative braking, so EVs cannot take Regen as an advantage).
Weight is key. Not only for pollution but also for efficiency. Prius / Prius Primes lighter weight allows for higher efficiencies.
Prius is on the list if you look it up and would be in the top 10. But I think ACEEE preferred encouraging people to buy the Prius Prime instead of something.
Yes, the Prius has a lot going for it. I personally would rather have a smaller EV instead, but that's not an easy thing to find right now, either.