Large majority of EU countries will hit 2030 solar targets ahead of schedule, according to new data.

  • NoiseColor@startrek.website
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    1 year ago

    If that’s the case or becomes the case, isn’t it easily solvable since the batteries only need to store the energy for a few hours? Maybe some spinning wheel thing?

    • Sconrad122@lemmy.world
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      1 year ago

      It is a very solvable problem, and mechanical or thermal batteries are likely to be at least part of the solution. Of the three kinds of gaps/shortfalls that grid storage would have to cover, the milliseconds-long and hours-long gaps are probably the easiest to solve. The days-long gaps (stretches of cloudy days, low winds for extended periods) is probably the most expensive to solve, but even those are not really that difficult (hydro storage is a tested technology that works well and HVDC transmission linking regions together can allow local shortfalls to be covered by remote surpluses). It’s all more a matter of building capacity than needing new technology to solve an unsolvable problem, from what I understand

    • Perfide@reddthat.com
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      1 year ago

      Longevity is the big problem. Every practical method of energy storage I can think of is negatively impacted by frequent charge discharge cycles. Even a flywheel like you suggest would eventually need new bearings, need rebalancing, etc…