Hydropower is generated by the movement of water, typically through a dam or turbine.

China is the world's largest producer of hydropower, accounting for over 30% of global production.

The Three Gorges Dam in China is the largest hydroelectric power plant in the world, with a capacity of 22,500 megawatts.

Asia has the highest potential for hydropower development, with over 50% of the world's hydropower resources.

The main environmental impact of hydropower is deforestation, as large areas of forest are often cleared to make way for dams and reservoirs.

Run-of-the-river hydropower plants use the natural flow of a river without the need for a dam, and typically have a lower environmental impact than other types of hydropower plants.

Pumped-storage hydropower involves pumping water from a lower elevation to a higher elevation during times of low electricity demand, and then releasing the water through a turbine to generate electricity during times of high demand.

Ethiopia has the largest hydropower potential in Africa, with an estimated capacity of over 45,000 megawatts.

Tidal power is generated by the movement of ocean tides, and is a form of renewable energy.

Norway has the largest installed hydropower capacity in Europe, with over 30,000 megawatts of capacity.

Wave power is generated by the movement of ocean waves, and is a form of renewable energy.

Brazil has the largest hydropower potential in South America, with an estimated capacity of over 200,000 megawatts.

Wind power is generated by the movement of wind, and is a form of renewable energy.

The United States has the largest installed hydropower capacity in North America, with over 100,000 megawatts of capacity.

Geothermal power is generated by the movement of geothermal heat, and is a form of renewable energy.