Hydroélectricité

The harnessing of flowing water—using a dam or other type of diversion structure—to create energy that can be captured via a turbine to generate electricity.

1922, from hydro- (short for hydro-electric) + power (n.).

electricity generated by turbines that are driven by moving water 

Power derived from harnessing the kinetic energy of moving water, not necessarily to generate electricity.

The use of water to power machinery or make electricity. Water moves constantly through a vast global cycle, evaporating from lakes and oceans, forming clouds, precipitating as rain or snow, then flowing back down to the ocean. The energy of this water cycle, which is driven by the sun, can be tapped to produce electricity or for mechanical tasks l [..]

The use of flowing or falling water from streams or lakes to produce electrical energy. Hydropower is a renewable resource.

Accounts for less than 1 percent of the electricity produced by generation and transmission cooperatives but about 10 percent of electric cooperative power requirements nationwide.

Is generated indirectly by the sun when water is heated, falls as rain and fills watercourses. In principle, hydropower produces no emissions, but it still has a major impact locally and regionally and changes the living conditions in and around the watercourses where dams are built. Flows are changed by dams, and rivers in some areas are drained. [..]

Energy obtained from flowing water. Although a renewable resource, unlike fossil fuels, it can have severe environmental impact.

electrical energy produced by falling water.

any means of harnessing power from water.

Takes the energy of running water and converts it to electricity. Hydropower Exemption