In a hydroelectric power station, the wicket gate on a Francis or Kaplan turbine controls water flow into the unit. Varying the gate position changes the turbine spin rate and the amount of electricity generated. This photo shows a row of generators inside Hoover Dam. A turbine is mounted below each generator and water from Lake Mead is funneled into each turbine to turn its generator. (more...)
![Hoover Generators](https://www.weschler.com/wp-content/uploads/2024/07/hoover-generators.jpg)