It&#x27;s a neat extension to the concept of using water towers or higher-altitude reservoirs for similar effect:<p><a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Pumped-storage_hydroelectricity" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Pumped-storage_hydroelectricit...</a>