State Grid staffs work with photovotaic battery panels in Neixiang County, central China's Henan Province, Nov 29, 2010. Local government has installed photovotaic devices for fifty househoulds located in remote areas to guarantee their power supply this year. [Xinhua]

A farmer walks past photovotaic battery panels in Neixiang County, central China's Henan Province, Nov 29, 2010. [Xinhua]