Someone has already been thinking along the same lines: https://www.swissinfo.ch/eng/business/energy-vault_revolutionary-idea-to-store-green-power-for-the-grid/

Someone has already been thinking along the same lines: https://www.swissinfo.ch/eng/business/energy-vault_revolutionary-idea-to-store-green-power-for-the-grid/45467684 https://www.swissinfo.ch/eng/business/energy-vault_revolutio...