Hydropower as an Alternative Energy Source Essay

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Hydropower as an Alternative Energy Source

Water provides a very valuable resource. We use dams built to run water through turbines and produce electricity. There are many advantages and disadvantages to hydropower, though there are more advantages. It is reasonable inexpensive to maintain, and is a clean source. There are issues with dams blocking fish swimming in the river, but there are ways to help them. Hydropower is well balanced between the electricity needs and the needs of the environment.
Hydropower makes up 90 percent of the United States’ energy from a renewable source. It is the nation’s largest renewable resource. People have built dams since ancient times to control the water. Waterwheels have been used for centuries to
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Another advantage is that, because dams can control the
Hydropower, 3 amount of water flowing through, we can control the amount of energy being produced at one time. We can supply energy according to the demand. Most hydropower projects have other advantages about them, too. For example, dams produce energy, but their primary use is in controlling the river and preventing floods. Hydropower is also reasonable inexpensive. The actually building of a dam is expensive, but once it’s built, it can stand for centuries and is fairly simple and inexpensive to maintain (Short Course, 2004).
One big disadvantage of hydropower is that it relies on the water supply being available, so if there is a drought then we may not have enough water to produce energy. Dams may also affect the flow of water downstream, which downstream communities of plants and animals are dependent on. Hydropower is also a danger to the plant and animal communities living downstream because it lowers the oxygen levels of the water. Also there is the issue of the space hydropower facilities take up. They may destroy the natural habitat of plants and animals in the area (Advantages, 2005).
Most these problems are easy enough to address. The reservoirs behind the dams will supply enough water to last through some drought. The dams closely regulate the water flowing downstream and keep it steady for the plants and animals living downstream.
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