The global market has developed positively in the past months, making growth of about 20% this year feasible, the managing director of Germany's solar industry federation, BSW, told the fair's opening press conference.

"The market drivers clearly are Asia and North America," Körnig said.

Japan and China account for a huge share of the global market, he added, and further important additions are also to be expected in the US, while markets such as India are starting to take off.

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