The technology works like this: Unlike normal solar photovoltaic panels that convert the sun’s light into energy, the EnviroMission tower would create solar-thermal power, from both the sun and the wind. Like a greenhouse, the sun heats up the air underneath a huge translucent, sloping canopy around the tower that is about as wide as a football field. The higher the tower, the stronger the flow of air. The faster the turbines spin, the more electricity possible. After sundown, the ground continues to release heat and more electricity would be generated.

This article is very interesting because it discovered the possibilities of using something which has existed for a long time to generate electricity. Which is very convenient because heat are being released everyday and risen up therefore if this technique succeed, then the results will be way better than its original cost. Fuel are so important, and frankly we know that fuel isn’t enough forever. You don’t have to be a science major to know that heat rises: Just step into an attic on a hot summer day. But what you might not know is that this basic scientific reality could also help create clean energy for entire cities.

Source: http://www.cnn.com/2011/10/02/tech/innovation/solar-tower-arizona/index.html