2 ms·
> A large water tank of 500m3 on a high tower at 50M above an underground storage tank yields approx 70 kWh at best. Correct, so if you want 70 MWh you need 10
by zupa-hu 6y ago
> A large water tank of 500m3 on a high tower at 50M above an underground storage tank yields approx 70 kWh at best.
Correct, so if you want 70 MWh you need 1000x more water. 500.000m3 is merely a 80x80x80m cube.
Or to put it in different perspective, to lift it by 50m you need 2x this volume (another container 50m higher), which is 1.000.000m3, or 1M m3. The volume of the Pyramid of Gyza [1] is 2.5M m3. So that wouldn't even be the biggest building on Earth.
[1] - https://en.wikipedia.org/wiki/Great_Pyramid_of_Giza https://en.wikipedia.org/wiki/Great_Pyramid_of_Giza