China’s towering EVx project uses 24-ton blocks to store excess power, raising them when energy is cheap and letting them fall at will.
  • SebaDC
    11·
    19 hours ago

    Plus, concrete is super dirty to produce and actually not so dense.

    • SheenSquelcher@lemm.eeEnglish
      4·
      9 hours ago

      The article mentions using greener things like waste and soil.

      And if you were using redundant mine shaft thats greener than building new structures.