May 30, 2012. Yingli Green Energy Holding Co., China's second-biggest solar-panel maker, expects domestic sales to increase by 36 percent as the country's subsidy program accelerates. Yingli forecast 30 percent of its 2012 revenue coming from China, up from 22 percent, the company said. China approved 1.7 gigawatts of solar projects May 3 under its Golden Sun subsidy program, which will spur sales. The program was introduced in 2009 and subsidized 689 megawatts of projects in 2011.