General Electric Co. has won a $15.5b contract to supply turbines to Wudongde hydropower plant being built in China, Bloomberg reported.

The turbines are expected to generate half of the plant’s 10.2GW generation capacity, and cut coal consumption by 12.2m tons annually. It will be China’s fourth largest hydroelectric plant. The Chinese government approved the project after allegedly 18 years of scientific research and preparation.

Hydropower is the second biggest source of the nation’s electricity following coal, and accounts for 22%, according to data issued by Bloomberg New Energy Finance.

In addition, the renewable unit of the Fairfield, a Connecticut-based company will provide six 850MW Francis turbine-generator sets for the project, Gulf News wrote citing an official statement.