The renewable energy sector in Wales grew by a third in the three years up to 2010.
"I think one of the things we first have to do is just celebrate the success and recognise it." she says Anne Meikle, from WWF Cymru.
"I think people don't know what it means and aren't really clear what's going on here, and how important a sector it can be for our future."
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Outbreaks of light rain or drizzle expected around the coast and hills.
Mike and Cynthia from Ystradgynlais flew out to the German city for a weekend away.
Fine and dry at first but becoming largely cloudy with outbreaks of rain or drizzle.