• eleitl@lemmy.zip
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    1 day ago

    I don’t think the assumptions in the report are reasonable. Fully dispatchable renewable with sufficiently deep buffers against dunkelflaute is prohibitively expensive(BESS 120 usd/kWh) , and this ruins your EROEI which is already marginal to start with.

      • NoSpotOfGround@lemmy.world
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        1 day ago

        Fully dispatchable renewable with sufficiently deep buffers against dunkelflaute is prohibitively expensive(BESS 120 usd/kWh) , and this ruins your EROEI which is already marginal to start with.

        Renewable energy sources that can be switched on and off at will with sufficiently deep buffers against lulls in generation are prohibitively expensive (Battery Energy Storage Systems cost 120 usd/kWh) , and this ruins your Energy Return on Energy Invested ratio which is already marginal to start with.

      • eleitl@lemmy.zip
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        1 day ago

        Battery energy storage system and energy return on energy invested. Some use energy cost of energy, in percent.