You're correct.
It will take more power to lift the water than the water will generate.
But ... as far as being a pretend battery, it's not to bad.
5000MW for 24 hours smashes any so called battery storage we have.
Let's hope the geo tech investigations were carried out more diligently than Snowy 2's were.
We don't want to lose another tunnel boring machine do we?
Should be OK ... Malcom Turnbull's not involved, or is he?
