SolarWorld – whose US unit is leading moves against alleged unfair trade practices by Chinese competitors – posted a net loss of €299.3m, compared to a 2010 profit of €87.3m.

A fall in selling prices drove revenues down to €1.05bn in 2011 from the previous year’s €1.3bn. The company was also dragged down by €314m in impairment charges relating to the value of older production sites in the US and Germany.

Chief