L0VE2FLY
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Could This Be The Largest Hydroelectric Project?

Tue Aug 27, 2013 9:27 pm

The Qattara Depression Project in the Egyptian desert. The Qattara Depression measures a staggering 300 X 135 km (186 X 84 mi.) and is up to 133 m. (436') deep...

http://en.wikipedia.org/wiki/Qattara_Depression_Project

Do you think this project will be realized? If so, what will its full potential be? Can it be as large as the proposed Desertec Africa project? As the depression is absolutely enormous and hydroelectricity is much simpler, cheaper and more reliable technology than solar.
 
KLMD11L
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RE: Could This Be The Largest Hydroelectric Project?

Fri Aug 30, 2013 7:35 pm

Don't know about the largest hydroelectric project, the Three Gorges Dam in China is currently the world's largest with an installed capacity of 22.5 GW, the cost of digging canals large enough to deliver sufficient water to generate 22.5+ GW will be as large as the depression itself! But it's doable.

Desertec Africa is a very ambitious project that aims to supply electricity to hundreds of millions, its construction has yet to commence, it will take many years and hundreds of billions to complete, and it's not exclusively solar. The Qattara Depression Project can't be as large as Desertec Africa but it can be part of it.

The Qattara Depression Project could be a unique hydroelectric project, due to the size of the depression, the fact that it's below sea level and its proximity to the Mediterranean Sea.
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L0VE2FLY
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RE: Could This Be The Largest Hydroelectric Project?

Sat Sep 07, 2013 8:08 pm

Quoting klmd11l (Reply 1):
Don't know about the largest hydroelectric project, the Three Gorges Dam in China is currently the world's largest with an installed capacity of 22.5 GW, the cost of digging canals large enough to deliver sufficient water to generate 22.5 GW will be as large as the depression itself! But it's doable.

I wonder how large the canals will need to be to deliver that amount of water?

Quoting klmd11l (Reply 1):
Desertec Africa is a very ambitious project that aims to supply electricity to hundreds of millions, its construction has yet to commence, it will take many years and hundreds of billions to complete, and it's not exclusively solar. The Qattara Depression Project can't be as large as Desertec Africa but it can be part of it.

Just read a detailed article about Desertec Africa, it's much larger than I thought. I think it makes sense to include the QDP in the Desertec Project.

Quoting klmd11l (Reply 1):
The Qattara Depression Project could be a unique hydroelectric project, due to the size of the depression, the fact that it's below sea level and its proximity to the Mediterranean Sea.

Indeed, it's the world's largest natural sinkhole, regardless of how large the canals will be, it'll still take many decades for the hole to be flooded due to its massive volume (3200 cu. km / 768 cu. miles), evaporation and absorption.

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