Comment on Renewables cover more than half of Germany’s electricity demand for first time this year

• silence7@slrpnk.net ⁨1⁩ ⁨year⁩ ago

  Yeah, that’s a better definition than final energy

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• iraq_lobster@slrpnk.net ⁨1⁩ ⁨year⁩ ago

  A lithium-ion battery pack has about 0.3 MJ/kg and about 0.4 MJ/liter (Chevy VOLT). Gasoline thus has about 100 times the energy density of a lithium-ion battery.

  gasoline is 100 time more energy dense than electricity, thus even inefficiencies at 70% for IC engines, gasoline would still be more efficient somehow. But there is alot of geopolotics and environement involved with fuel. The problem of energy density needs to be resolved somehow so it would be more convenient to use.

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  • MrMakabar@slrpnk.net ⁨1⁩ ⁨year⁩ ago

    The article is from August/September 2012

    The issue is that ICs just suck badly. So badly that carrying around half a ton of batteries still makes EVs much more efficent. that is not even looking at how petrol is made, which btw also requires electricity.

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    • iraq_lobster@slrpnk.net ⁨1⁩ ⁨year⁩ ago

      but heavier cars ruin the road structure. Highways need an alternative for bitumen, and overall electrify the production of road components, including steel and concrete.

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      • ChairmanMeow@programming.dev ⁨1⁩ ⁨year⁩ ago

        Increased truck traffic does way more harm than electric cars do.

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