Smoggy Beijing to ban coal use, page-26

Does anyone have the data on how much energy it costs to produce these things ?

Here's one link .

http://www.solarchoice.net.au/blog/...ufacture-then-they-will-ever-generate-161209/

I'm guessing that the point is once they are running and provide they have a decent life cycle , they are producing no pollution for that period .

E.g. Hydro electricity .