• Robbity@lemm.ee
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    14 hours ago

    It’s basically solved. Sodium batteries are cheaper and much more durable than lithium batteries, and are currently being commercialized. Their only downside is that they are heavier, but that does not matter for grid-scale storage.

    • toastmeister@lemmy.ca
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      8 hours ago

      Being cheaper than Lithium is great, but are they cheaper than nuclear?

      The manpower of maintaining all these batteries seems like it would also be a lot, how would you do it for an entire grid, or would you need to have each individual placing a battery on their property to deal with brownouts?

      • Robbity@lemm.ee
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        2 hours ago

        That’s kind of irrelevant.

        Nuclear handles the base power generation. Grid storage is meant to handle peaks. It needs to be cheaper than coal, which is also used for peaks.

        Anyway, grid storage is already about 200$ per installed kw with lithium. If sodium gets us to 100$, a 1GW installation comparable to a nuclear plant would cost 100 million. That’s like 150 to 300x cheaper than a nuclear plant. And a plant takes years to build, decades even. A storage facility takes days or weeks.

        Of course that does not count energy generation, but grid scale storage basically stores free excess energy from nuclear and renewables. So they actually improve the cost efficiency of nuclear and renewables, they don’t compete with them.

      • MIXEDUNIVERS@discuss.tchncs.de
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        7 hours ago

        Problem with coal or nuklear is it isn’t cheap. In Germany it survies only on subsidies. And Nuclear was abolished in Germany, a bit to early. I said we needed it 10 years longer and we could have shutdown our coal.

    • Phoenicianpirate@lemm.ee
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      14 hours ago

      I remember reading about those. Sodium batteries are revolutionary. They don’t need a rare earth mineral… sodium is friggen everywhere.