Alt text:

An idling gas engine may be annoyingly loud, but that’s the price you pay for having WAY less torque available at a standstill.

  • Sotuanduso@lemm.ee
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    5 months ago

    Googling tells me that:

    • Electric cars have 77% efficiency
    • Gas cars have 30% efficiency
    • Electric car batteries have 270 Wh/kg (converts to 0.97 MJ/kg)
    • Gasoline has 46 MJ/kg

    So the math here says electric gives you (0.97 * 77%) 0.75 MJ/kg output and gas gives you (46 * 30%) 13.8 MJ/kg output. Plus, as someone else said, spent gasoline no longer weighs you down.

    I like the idea of electric, and I want to see it replace gas as soon as possible, but fair is fair.

    • bitwolf@lemmy.one
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      5 months ago

      Technically empty batteries weigh less than charged batteries.

      Not that the difference is significant enough to tip the scale though.

    • someacnt_@lemmy.world
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      5 months ago

      How do you think about hydrogen cars? They have better fuel density, and hydrogen is renewable.