All the cheap storage capacity with natural flow have been taken. Pumped hydro doesn't need natural flow, because it uses pumps. All it needs is a height dif

All the cheap storage capacity with natural flow have been taken. Pumped hydro doesn't need natural flow, because it uses pumps. All it needs is a height differential. Here's 22,000 in Australia alone. There are millions worldwide. https://arena.gov.au/knowledge-bank/anu-stores-an-atlas-of-pumped-hydro-energy-storage-the-complete-atlas/ https://arena.gov.au/knowledge-bank/anu-stores-an-atlas-of-p...