Hydroelectric power is one of the world’s oldest methods of power production. I would venture to guess that Johnny Caveman slapped some stiff leaves or bark on a stick and placed it into a moving river or stream. The power of the water would then rotate the stick, crushing the grain that they used to make prehistoric corn muffins. The power of moving water has been harnessed throughout history, and today we are finding ways to use it to our advantage—from brewing that nighttime tea to opening the garage door in the morning.
United States Hydroelectric Power
The U.S. primarily uses energy created by nuclear power plants or fossil fuels. However, hydroelectricity is growing in the country with eight percent of our power coming from hydroelectric plants. A large power generator is placed inside a dam, and the water which flows through the dam spins the built-in turbine blades of the generator. This creates power that can be used for residential or business purposes.
Worldwide Hydropower
Hydroelectric Power Advantages
Disadvantages to Typical Gas Fuel, Oil, and Coal Power Plants
The Environmental Impact of Hydropower
As with anything, there is always a slight downside. Hydropower causes zero pollution in the air or water. However, the facilities that are necessary can have significant impacts on the homes, land, natural habitats, and environment in the area of the dam. The structure can hinder the migration of certain fish, thereby affecting their population. Hydroelectric plants can also change the flow and temperature of the river or stream. These changes could impact native animals and plants in and around the river. Building dams can also cause people to be relocated, although that is much rarer.
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Tags:Alternative Energy, America, benefits, electricity, Environment Resources, Green, hydroelectricity, hydropower
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