Sources of electricity are everywhere in the world. Worldwide, there is a range of energy resources available to generate electricity. These energy resources fall into two main categories, often called renewable and non-renewable energy resources. Each of these resources can be used as a source to generate electricity, which is a very useful way of transferring energy from one place to another such as to the home or to industry.

Hydroelectric power

Hydroelectric energy is produced when water falls from a high place to a low place. A hydroelectric power station contains a turbine driven by falling water from a dam. The turbine drives the generator. This form of energy produces little pollution; in addition, it does not ruin the water. The water still can be used for other purposes. Hydroelectric power does not cost any more than fossil fuels.

Another advantage is that there are a lot of lakes or rivers where a dam can be built to produce energy. One disadvantage is that fish, such as salmon, can not climb over the dam, so the dam changes the environment. Another disadvantage is that when a dam is built, a huge area is flooded to make a lake, so the water displaces the people and animals living there.

Nuclear power

This energy is made by fusion or fission (if you don’t know the terms go to the “about electricity” page.) It is produced in the reactor of a nuclear power station. The energy turns water into steam, which drives a turbine that powers a generator. Nuclear power produces lots of energy and can be made to power major cities.

This energy, unlike other sources, produces lots of radioactive waste. If that waste gets released, it could cause devastation to a large area. In addition, it warms its waste water, so fish in the nearby lake might lay their eggs at any time of year in the warmed spot. Some fish, such as trout, cannot live in warm water.

Wind power

Wind power is produced by the wind turning a turbine. Wind power, through using windmills, has been known for many centuries. This source of energy produces almost no pollution, and it is easy to capture in many parts of the United States. Some people think that the fields of windmills ruin the beauty of the land, and some other people are bothered by the noise generated by the windmills.

Also, in order to be effective, the wind speed at a power site has to be over 12 kilometers per hour. Finally, this source of power is costly and requires special equipment.

Michael Harvey’s Earth4Energy gives you lots of information which you can’t cover in this article and moreover you can also visit http://www.earth4energybonus.blogspot.com

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