On Sunday the sluicegate of China’s Three Gorges Dam will be closed, ten years after work began on the controversial project. Water from the Yangtze River will begin to form a reservoir, eventually flooding 312 million square feet of land. 1.13 million people will be relocated by the project’s end in 2009. But the upside is electricity. Generators will be providing power as early as this year, and ultimately 26 turbines will create 18,200 megawatts of power, supplying the energy for China’s expected massive economic growth.