Hydropower is energy that comes from moving water. It is used to produce electricity in systems such as rivers, dams, and waterfalls. Water movement is used in many energy systems. Hydropower is one of the oldest energy sources used by humans.

Hydropower is found in regions around the world where water flows, including rivers and mountain areas. It is used in homes, cities, and industries. Large and small systems exist in many countries.

Hydropower is part of renewable energy systems. It has been used for many years and continues today. This form of energy is part of global energy production.