Photo taken on May 3, 2013 shows Ghana's second largest Hydropower station Bui dam. The first power generating unit of 133 megawatts from the Bui hydroelectric project was officially started on May 3, 2013. The project, which is being constructed by China's Sinohydro Corporation, will generate 400 megawatts of power when it becomes fully operational by the end of 2013. Started in April 2008, the project was financed by the governments of Ghana and China at a total cost of nearly 800 million U.S. dollars, with the Chinese government providing 90 per cent of the funds while its Ghanaian counterpart paid ten percent.(Xinhua/Shao Haijun)

Ghanaian President John Dramani Mahama (C) and Chinese Ambassador to Ghana Gong Jianzhong (4th L) press the button to switch on the first power generating unit of Bui hydropower station in Ghana, on May 3, 2013. The first power generating unit of 133 megawatts from the Bui hydroelectric project was officially started on May 3, 2013. The project, which is being constructed by China's Sinohydro Corporation, will generate 400 megawatts of power when it becomes fully operational by the end of 2013. Started in April 2008, the project was financed by the governments of Ghana and China at a total cost of nearly 800 million U.S. dollars, with the Chinese government providing 90 per cent of the funds while its Ghanaian counterpart paid ten percent.(Xinhua/Shao Haijun)

Ghanaians pass by the Bui dam, Ghana, on May 3, 2013. The first power generating unit of 133 megawatts from the Bui hydroelectric project was officially started on May 3, 2013. The project, which is being constructed by China's Sinohydro Corporation, will generate 400 megawatts of power when it becomes fully operational by the end of 2013. Started in April 2008, the project was financed by the governments of Ghana and China at a total cost of nearly 800 million U.S. dollars, with the Chinese government providing 90 per cent of the funds while its Ghanaian counterpart paid ten percent.(Xinhua/Shao Haijun)