Workers operate on the assembly line that makes photovoltaic cells, the main energy generating component of a solar panel, at the Suntech Power Holdings factory in Wuxi, Jiangsu Province, China on 28 July 2009.  While China, the world's largest electricity consumer, installed less that 3% of the world's solar power capacity last year, its government subsidized alternative energy manufacturing industry now supplies the majority of the solar panels on the world market.