Powerchina Northwest Engineering Corporation Limited (Powerchina Northwest or NWH) is a large, state-owned Chinese company specializing in engineering, procurement, and construction of power projects. Founded in 1950 and based in Xi'an, Shaanxi Province, NWH has completed over 199 investigation and design projects for hydropower, wind power, and other energy projects in China and abroad, with over 37 large and medium hydropower stations totaling over 10,000 MW of installed capacity. NWH also has expertise in transmission lines, substations, and other related work, and is equipped with advanced research and monitoring equipment.