Walpole has gentle hills, not mountains, and a farm dam full of water was sufficient for 30 MW hours of storage. https://www.abc.net.au/news/2024-12-01/austral

Walpole has gentle hills, not mountains, and a farm dam full of water was sufficient for 30 MW hours of storage. https://www.abc.net.au/news/2024-12-01/australian-first-mini-pumped-hydro-scheme-wa-walpole/104655498 https://www.abc.net.au/news/2024-12-01/australian-first-mini... Very few places are flat without hills ( Much of Mali is really flat, for example ).