June 8, 2012. The world's largest solar-panel makers are boosting production on expectations that demand in China will double, a surprise shift as the $36 billion market migrates from Europe to Asia. The five biggest producers of polysilicon solar modules, led by China's Suntech Power Holdings Co. and Yingli Green Energy Holdings Co., will increase shipments 27 percent to 37 percent from 2011 levels. Chinese demand will partially offset declines in Europe that are driving the industry toward its first global sales decline since at least 1999. China's efforts to stimulate its photovoltaic industry at home and a 48 percent drop in panel prices in 2011 are boosting sales. The nation, which trails only Germany and Italy for new installations, will dominate growth this year and become the top solar market in 2013, after European nations cut subsidies for new projects.