Compressed air and hot sand are poised to reshape the grid-scale battery landscape
  • CanadaPlus@lemmy.sdf.org
    2·
    3 years ago

    Yeah, large-scale power plants have an efficiency of maybe 55%. Small scale heat engines are pretty hard to make work better than 30%.

    Storage with solid weights is probably competitive with this. Hopefully someone figures out a low-cost grid battery.