There are a Lot of different technologies out there As long as we do not focus on One question there will be Many answers :^) <A HREF="http://www.nrglink.com/" target="_new">http://www.nrglink.com/</A> <A HREF="http://www.greenenergy.org.uk/" target="_new">http://www.greenenergy.org.uk/</A> <A HREF="http://www.energymarketreview.org" target="_new">http://www.energymarketreview.org</A> <A HREF="http://www.energymarketreview.org/submissions/tp.pdf" target="_new">http://www.energymarketreview.org/submissions/tp.pdf</A>