![](http://tucsoncitizen.com/wryheat/files/2009/08/solar-tower.jpg)
The Solar Chimney, also called a Solar Tower to avoid confusion with polluting industrial chimneys is coming to the forefront of green power. While not a new idea-it was first proposed in 1903 by Isidoro Cabanyes-it is just recently getting attention. Put simply the solar tower is a giant chimney like structure surrounded by a massive green house.
![](http://ramblingsdc.net/Australia/SolarPower/SolarTower.jpg)
![](http://www.except.nl/consult/SolarUpdraftTower/images/SolarUpdraftTowerRenewableEnergy_Diagram1b.png)
The solar updraft tower is not meant to be placed everywhere. It is only most effective in areas of high solar potential as shown by the map.
![](http://www.oksolar.com/abctech/images/world_solar_radiation_large.gif)
As you can see the areas with the highest potential are also arid deserts. This is where the solar tower is a win-win situation for these areas. In addition to supplying power to surrounding towns and cities (one tower can provide power for around 250,000 homes)it can also act as a farm. The green house around the tower would provide the perfect environment to grow crops.
The tower would also provide tourism opportunities. When built it would be the tallest man-made structure on the planet.
![](http://www.permaculture.org.au/images/solar_updraft_tower_size.jpg)
>It can provide clean and reliable power to 250,000 homes
>It also provides an area to raise crops in
>It presents tourism opportunities
>Given the last two statements, the presence of a tower would provide a boost to local economies
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well that's all I got on this subject for today
see you guys tomorrow
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