What will the end of oil dependence mean for geopolitics?

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Solar power is one form of renewable energy that is replacing fossil fuels

If you want to understand the revolution taking place in renewable energy, come to a power station called Gemasolar in southern Spain.

Here, in the dusty plains of Andalusia, they have worked out how to generate solar power 24 hours a day.

Yes, you can read that sentence again. At Gemasolar they create electricity even when the Sun is not shining.

They have rigged up more than 2,500 huge mirrors on hydraulic mounts that follow the Sun’s passage through the sky.

The mirrors – each about the size of half a tennis court – reflect the Sun’s rays to one central point, the top of a 140m (459ft) tower, where molten salt is heated to almost 600C. This liquid salt is carried down the tower to where it heats the steam that powers a turbine.

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100 Mile Per Gallon Plug-In Hybrid Van

100 Mile Per Gallon Plug-In Hybrid Van 

A spinoff from the Rocky Mountain Institute, Bright Automotive, has developed a 100-miles-per-gallon plug-in hybrid.

Last week, Bright Automotive, a startup based in Anderson, IN, unveiled a plug-in hybrid utility van designed to travel 50 miles on half a gallon of gasoline. The company plans to start producing the Idea vehicle in large volume by the end of 2012, and it hopes to sell 50,000 a year starting in 2013.

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