Thermal towers what are they and how do they work? Will they ever be built?

Read something about them a year or so ago. Can generate electricity with them? Can we build a hollow tower a kilometer in height with a diameter of 500 meters? How thick would the walls be?

Answer:
*The Solar Tower technology is not simply solar energy. Solar Tower technology is created when the sun’s radiation is used to heat a large body of air, which is then forced by the laws of physics (hot air rises) to move as a hot wind through large turbines to generate electricity.

A solar thermal power station using Solar Tower technology will create the conditions to cause hot wind to flow continuously through its turbines to generate enough electricity to power about 100,000 homes.

pl. visit:
http://www.wentworth.nsw.gov.au/solartow...

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Thermal towers what are they and how do they work? Will they ever be built?

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