Comment on Japan automakers play catch-up in EV race

• You999@sh.itjust.works ⁨1⁩ ⁨year⁩ ago

  You are comparing different efficiencies. Solar panels are 15% to 20% efficient at converting light into energy. As far as I’m aware every Efuel being developed (and every hydrocarbon fuel for that matter) has a 0% efficiency at converting light into energy but if I am mistaken please do correct me.

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  • Hypx@kbin.social ⁨1⁩ ⁨year⁩ ago

    E-fuels are made from solar power. It is not anywhere near 0%. Also, clearly efficiency is not "the only metric that matters."

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    • Honytawk@lemmy.zip ⁨1⁩ ⁨year⁩ ago

      No they are made from electricity, and that electricity is made by solar panels (sometimes).

      Any form of conversion means losing energy.

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      • Hypx@kbin.social ⁨1⁩ ⁨year⁩ ago

        BEVs require conversion steps too. Not to mention the cost and energy needed to build them in the first place. They are nearly as efficient as their advocates think.

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  • PlatinumSf@pawb.social ⁨1⁩ ⁨year⁩ ago

    In a completely technical sense the hydrocarbon fuel was at one time produced from light energy (dead plants) but that’s taking your point and being pedantic since the “efficiency” of the conversation is probably astronomically low when you account for the loses sustained by whatever lifeform died and became said hydrocarbons.

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