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While we are rapidly starting to run out of non renewable energy sources, renewable energy relies on natural sources that effectively last forever. We do not have to worry about running out of wind, water, sunlight and the natural geothermal heat of the planet.

Although it is proving controversial, wind power is becoming rapidly more popular these days. This type of renewable energy comes from wind farms, huge areas of land which are given over to dozens of wind turbines. Because of the relatively small amount of energy produced by wind turbines, they require a great deal of space to produce a worthwhile amount of power. This can severely damage local environments, however, they can also be placed its sea in certain cases.

Wind power, of course, is wind that is converted into electricity by way of wind turbines. This technology has however proven controversial due to the fact that it requires an enormous amount of land to build enough windmills to generate a satisfactory amount of electricity. These wind farms are not only unsightly, but they can be damaging to the local environment. Fortunately, however, they can also be placed in the sea.

Energy from water is called hydroelectricity. This kind of energy is created by way of water wheels and water mills and dams. The biggest advantage of a hydroelectric power, is that it is relatively cheap to produce and also brings us a lot of power, currently supplying the world with 19% of its electricity. Hydroelectric power can also come from waves and the force of the tides.

Solar power is another popular form of renewable energy, which of course comes from sunlight. Solar panels are used to take in the sunlight and convert it into electrical power. An increasing number of households in some countries are installing their own domestic solar panels because not only can it produce electricity for the household, any excess electricity generated can be sold back into the grid. This works out very well for everyone, especially the environment, since not only is it good for the planet, it is also good for your wallet.

Finally, geothermal energy is another form of a highly effective renewable energy. This type of energy comes directly from tapping into the heat of the planet itself. Unfortunately building geothermal energy power stations is not cheap, but they are cheap to run and they produce a lot of electricity.

The market for renewable energy is rapidly growing, especially the wind power industry, which is currently experiencing a remarkable 30 per cent annual growth rate. In addition to this, or more people are getting solar power panels installed into their homes.

It is refreshing to know that in these times of rapidly growing population around the world and an environment that is becoming increasingly endangered, that governments and people are starting to do something about the problem. As technology continues to advance, one would hope that we can expect to see even more options with regards to renewable energy and a much more frequent use of it.