A solar updraft system works by heating up the air at ground level, then using the fact that hot air rises to funnel that air up a tall tower with turbines in it. The air is heated under a large roof ...

A new breed of solar tower may soon be sprouting up in Namibia, providing the nation with a carbon-free source of electricity and food during the day and night. At one and a half kilometers tall and ...

We think of the power we generate as coming from all these different kinds of sources. Oil, gas, coal, nuclear, wind… so varied! And yet they all fundamentally come down to moving a gas through a ...