• toastmeister@lemmy.ca
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    11 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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      6 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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      10 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.

      • toastmeister@lemmy.ca
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        3 hours ago

        The problem I see with wind and solar is you need backup power, to handle the sinusoidal nature of production. So you need to duplicate your power production, and that costs a lot.