Visitors view electric cars at the 2nd China (Wuxi) Renewable Energy Conference and Solar Power Exhibition held in Wuxi City, east China's Jiangsu Province, Sept. 17, 2010. The 2nd China (Wuxi) Renewable Energy Conference and Solar Power Exhibition kicked off on Friday. Over 100 companies and institutes of renewable energy displayed advanced technology and products in the exhibition. [Xinhua]