China Three Gorges Corporation with 3,050 MW under construction or development. As of the end of 2013, CTG had business in 37 countries and regions, with 84 ongoing international construction and investment projects. In December 2011, China Three Gorges Corporation acquired a 21.35% Portuguese government's stake in "Energias de Portugal" for €2.69 billion. In December 2011 China Three Gorges Corporation paid HK$2.1 billion (US$270 million) for a 29% stake in China Power New Energy Development. China Three Gorges Corporation The China Three Gorges Corporation (CTG, ) is a Chinese state-owned power company, established on 27 September 1993. The company was responsible for construction of
Arch dam Arch dam An arch dam is a concrete dam that is curved upstream in plan. The arch dam is designed so that the force of the water against it, known as hydrostatic pressure, presses against the arch, compressing and strengthening the structure as it pushes into its foundation or abutments. An arch dam is most suitable for narrow canyons or gorges with steep walls of stable rock to support the structure and stresses. Since they are thinner than any other dam type, they require much less construction material, making them economical and practical in remote areas. In general, arch dams