--FILE--travailleurs chinois vérifier des panneaux solaires installés sur le toit d'un bâtiment de l'usine à l'usine du groupe Ming Xin Feng dans Zhouquan Tongxi, ville
--FILE--Chinese workers check solar panels installed on the rooftop of a factory building at the plant of Xin Feng Ming Group in Zhouquan town, Tongxiang city, east China's Zhejiang province, 18 December 2014. Chinese solar companies, some already heavily indebted, will need to raise many billions of dollars this year to fund a big expansion in capacity, a major test of investor confidence in a sector hit hard by the global financial crisis. Beijing in March announced a solar installation target of 17.8 gigawatts (GWs) for 2015, up 70 percent on the previous year, to boost the use of renewable energy and prop up China's solar panel industry, the world's largest. Industry experts say that will entail total investment from big state-owned enterprises and debt-laden private businesses of over $23 billion, most of it from state banks, and the domestic debt and equity capital markets. Chinese banks, however, remain wary after writing off billions of dollars via a wave of defaults and plant closures in the sector when European demand for Chinese solar products collapsed during the euro zone debt crisis.