• Lupus@feddit.org
    link
    fedilink
    English
    arrow-up
    23
    arrow-down
    1
    ·
    2 days ago

    I don’t know what depths we’re talking about here,

    From the article:

    The idea is relatively simple: hollow concrete spheres are installed at a depth of several hundred metres.

      • humanspiral@lemmy.ca
        link
        fedilink
        English
        arrow-up
        1
        ·
        21 hours ago

        The more pressure the more “equivalent head” power discharge potential. Separate “vacuum pump” (instead of bidirectional) could also have several stages to improve efficiency.