work 22 May 2008 10:23 pm


the sun

40 minutes of solar radiation has enough energy content to power the world for a whole year.
How do we store this energy. Storage is the problem. As photo-voltaic cells (PV’s) get more efficient, we need creative ways to store this energy.

Here’s the cycle: during the day – use super efficient PV’s to collect energy and drive compressors that compress air. During the night, release this compressed air and drive turbines to provide electricity. Can we store it as compressed air in huge underground caverns?

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