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They are not using solar panels, they are creating a giant heat pump. They are therefore relying on there being a heat differential between the top and bottom of the tower.

Greenhouse gets hot, creates a pressure difference between inside the greenhouse and outside of the tower at the top, air flows up through turbines. It is very simple.

There are very few moving parts and it is always going to be colder at the top of the tower than at the bottom.

Note that it isn't pure desert floor, but a man made structure that will purposefully trap heat. Imagine how hot it would get if you sat in your car with the windows rolled up in the middle of the desert. Then think about how cold it would be at 2x the height of the empire state building.

It will be colder just because of the air pressure at that altitude. Even so, the ground cools at a much different rate than air does, so I'm sure night time generation is bolstered somewhat by that.

It will have a very high capacity factor because the only thing that you should ever have to 'fix' is the turbine, which should last quite a long time.

It seems likely that cf will be much higher than even that of nuclear.



It might continue to generate during the night, but I would be very surprised if its nighttime capacity was even a quarter what it generated during the day. Also, the glass will need to be cleaned periodically.




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