Solar panel makers eclipsed by dimming profit margins

Dark clouds are looming as shares of China-based manufactures dropped by up to 70% this year.

According to a Reuters report, panel prices dropped by some 35% this year due to erosion of subsidies in the world's two biggest solar markets, Germany and Italy.

Manufacturers are then left suffering as profit margins drop together with share prices.

Suntech Power Holdings and Trina Solar shares have dropped 70 percent this year, Yingli Green Energy more than 60 percent, and JA Solar Holdings nearly 73 percent, according to Reuters.

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