While solar power is most commonly associated in the public mind with photovoltaic cells, there exist other promising alternatives for the conversion of the sun’s radiation into usable energy.

One such alternative is solar updraft technology, which is highly suited to hot and arid climates and overcomes some of the limitations that hamper the usage of conventional solar cells. The approach entails the construction of extremely tall solar “chimneys” which uses air heated by the sun to generate energy,…