Hydroelectric PowerOne of the first ways to harness energy is through the powerful flow of water. On September 30, 1882, in Appleton, Wisconsin, the very first dam was built. Since then, more than 2,044 billion kilowatt hours have been produced around the world every day. This energy source is increasingly used because it is very reliable. But how does it actually work and produce electricity? First, dams are located in a position where water moves quickly and quickly. This is very important. When water enters the dam, it passes through a series of giant pipes. At that point, the water hits the turbine blades, causing it to spin. From there, the water goes to the end of the dam, and continues its regular flow into the river. To know where the electricity comes from, we have to go back to the turbines. As the turbines spin, a long, thick stick sticking out from the side is connected to a generator filled with magnets. This is where all the electrons are produced. Finally, the electricity then travels via power lines and reaches homes and businesses in the area. There are many advantages to using dams. First of all, we have an unlimited source of water. Additionally, these dams are sturdy and could last for years and years. Additionally, dams do not add any pollution to the environment like nuclear and fossil fuels do, which is now a major problem. Finally, it is a reliable source. Unlike wind and solar power, we could use it day and night and know it will be available the next day. Having a dam has some disadvantages. First of all, they are very expensive. Dams have a lot of expensive equipment. Additionally, a dam requires a lot of space to build and powerful water. These two requirements make it difficult to find a place to build a dam. Worse yet, when building a dam, you may have to evacuate people to do the actual construction. On average, 80,000 people must be evacuated. Overall, I think hydroelectric dams should be the main source of energy in the world..