WhyGreen Renewable101 Hydro banner Hydro Energy 101

How It Works

Hydro energy is generated using the power of moving water in our Earth’s rivers and oceans.

  1. A dam blocks water from moving where it wants to naturally
  2. Instead, the water flows through a pipe to a turbine, then back out on the other side of the dam
  3. Turbines spin by force of water and rotate a generator
  4. The generator produces electricity and sends to power lines, bringing electricity to homes and businesses

WhyGreen Renewable101 hydro2 Hydro Energy 101

Fun Facts

  • The word hydropower comes from the Greek word hydro (water)
  • Hydropower is one of the oldest sources of energy, used to grind grain by the Ancient Egyptians as early as 250 B.C.
  • Hydropower can be captured from many different forms of water, including river currents, river dams, ocean waves, and ocean tides
  • Hydropower is one of the least expensive renewable energy source in the United States
  • Hydro produces about 6.6% of the energy used in the United States