This ultra-tall structure will be a 280 m diameter concrete pipe with wind turbines installed inside. Warm air heated by the sun's rays in a 37 sq. M. Greenhouse located at the foot of the tower. km, will rise along it, forcing the windmills to work. As a result, up to 400 megawatts of electricity will be produced, which is very important for Namibia, where electricity is a scarce resource.
The developers of the project, the South African firm Hanh & Hahn, also propose to use a huge greenhouse for growing crops, which is otherwise impossible in the desert. For irrigation, it is proposed to use purified groundwater or desalinated sea water, which will require only minimal use of the energy produced by the "solar tower". The project, called Greentower, has a budget of $ 150 million.
According to some reports, a similar structure, 200 meters high, was erected in the 1980s by a German engineer in Spain. It successfully produced electricity for 8 years, until it was disassembled (according to other information, destroyed by a storm).
Today, similar technology is used, for example, in the renovation project of London's Battersea power plant by Raphael Vignoli.
