the 3 gorges dam is $185.00 metres high and 2398 hours long it took $18000.00 workers 17 years to build this mammoth construction at a cost of around 75000000000 dollars. so you know the water flows through this opening into the plant and passes through the hydroelectric system also into generators rotate with incredible force under the immense pressure from the water this converts hydraulic energy into mechanical energy which is then transported upwards which turns a system of rotors and that's what eventually combats the energy into electricity talented. in china projects are decided upon by the government alone. this helps