We all know the enormous power of the sun, we can't even look at the sun without hurting our eyes (A bit like this web page!), but how do we harness the suns power?

• We could try emulating it. We already do that with nuclear power but we can't work out how to get rid of its by-products safely yet. Maybe in a few hundred years time.

• We could use the stored energy it has created here on earth. We do that with fossil fuels but we can't work out how to dispose of its by-products economically yet. And probably never will.

• Wouldn't it be cool if we could convert its energy as it arrives at our planet directly into electricity with some sort of fantastic transducer! We do that with solar panels but...um...they're not economically viable yet?? Yes they are! And have been for years, read on...