The Top 3 Renewable Energy Sources

Most modern nations depend on natural gas, oil and coal to supply the majority of their energy needs, but dependence on fossil fuels is a huge dilemma. Fossil fuels are considered a finite resource, meaning the world can and will run fresh out of fossil fuels. These fuels can also cause pollution of the air, soil and water. However, people are turning to renewable energy sources.

Here are the top three renewable energy sources:

Energy

The first of the top three renewable energy sources is solar energy, and is probably the best known method. The sun is our most powerful, natural energy source. Solar energy which is sunlight, can be implemented for light, heat, cooling homes, electricity, heating water, and much more industrial processes. Most renewable energy forms are derived either indirectly or directly from the sun. For instance, the heat from sun makes the wind blow. This in turn contributes to growth of plants and trees used for biomass energy. This plays an important role in the evaporation and precipitation cycle that empowers hydropower.

The second of the top three renewable energy sources is wind energy. The wind is air movement that happens when warm air ascends and cooler air dashes in, replacing it. The energy of wind has been a centuries-old tool for sailing ships and driving windmills to grind up grain. Currently, wind energy is used to generate electricity via wind turbines.

The third top renewable energy source is hydropower. The force of water flowing downstream is powerful. Water is a renewable resource itself, constantly being recharged by the evaporation-precipitation cycle. The heat from the sun causes the water in oceans and lakes to evaporate, thereby forming clouds. The most familiar part of course is the water falling back to earth as rain or snow, draining into streams and rivers that return to the ocean. The power of flowing water can be used to drive water wheels. The energy can be captured by generators and turbines and used to generate electricity.

The Top 3 Renewable Energy Sources

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The Importance Of Renewable Energy Resources

The modern lifestyle depends tremendously on the use and existence of fossil fuels. With levels of these fuels constantly decreasing, we should act now to become less dependent on fossil fuels and more dependent on renewable energy sources.

The decreasing levels of fossil fuels isn't the only reason why we should begin to use renewable energy. Pollution is becoming a huge problem in many countries around the world, especially the developing world. With carbon emissions at an all time high, air quality can be very low in some areas, this can lead to respiratory diseases and cancer.

Energy Efficiency

The main reason to switch to cleaner energy production methods is the global warming aspect. The more carbon dioxide we pump into the atmosphere, the greater the effect becomes. We can't just stop using fossil fuels thinking that global warming will go away, but we can slow down and dilute the effects of global warming through the wide spread use of renewable energy resources.

There are many natural energy sources out there, but you have to decide which method is best for you, as all of these sources depend on your current environment.

The installation of a solar panel or a wind turbine to boost every homes power supply would be an amazing step forward. Some governments are in the process of supplying solar panels to hundreds of households to test this method of energy saving.

A technology set to be very important in the future is geothermal energy. With geothermal energy, you are able to extract heat from within the earth and transform it either into a hot water system, or if there is plenty of this energy, a geothermal power plant. Huge amounts of money have been flowed into research of this method, especially in recent years, in order to make the current technology more effective.

So there we have the reasons why we should turn to renewable energy resources which are more than likely to play a very vital and important role in our future society.

The Importance Of Renewable Energy Resources

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The 4 Main Types of Renewable Energy

As the world reaches its energy crisis we need to reduce our dependence on non-renewable energy sources, and start generating renewable energy on a massive scale.

To date there are four main types of renewable energy that we can produce: wind power, solar power, hydro power, and geothermic power.

Energy Efficiency

Wind Power:
Wind turbines have been around for millennia, further back than the birth of Christ. Over the years they have been used to pump water, drag boats and grind flour. But at the turn of the industrial revolution, wind turbines were made to produce electricity.

Although many people envision windmills as those ornate ones in Holland or the small wind-pumps on farms, they have been developed tremendously in the past decade. Now wind turbines are able to generate thousands of megawatts of power, and when used on a small scale at home, wind power can substitute conventional energy sources, helping households to get off the grid.

Solar Power:
The sun is the most readily available form of energy there is, so we should be using it to a larger extent. And as technology advances, households are provided with a number of ways to harness the power of the sun. These ways include solar electricity, solar heaters, solar dryers and solar cookers.

With solar electric and heating systems, they are both cost-effective, good for the environment, they require little maintenance and help you save on your utility bills. Solar cookers are very healthy way of cooking food, since they cook the food at a lower temperature-helping to retain its vitamins and minerals. They are also very portable, making them ideal for travelers and campers.

Hydro Power:
Initially hydro or water power was used industrially to rivers and waterfalls to power waterwheels that would then be used to move water for irrigation or grind flour.

Today hydro power is used in dams to produce electricity for households and businesses. Hydro-electric power is generate on a large scale where dammed up water is channeled through turbines, which spins a dynamo as it gushes through. The best example of hydro-electric power would be the Hoover Dam, which was built to provide electricity to Las Vegas. In fact hydro-electric power is efficient is popular nowadays that it accounts for over 90% of the worlds renewable energy.

There have been some social and environmental concerns about building dams for hydroelectricity since entire village and communities are flooded by the dam, and the walls prevent certain species of fish from swimming upstream to spawn.

Geothermal Power:
Geothermal power is typically produced in areas with ongoing volcanic activity, where magma is relatively close to the surface. One such area is Iceland, where a large proportion of its power is produced from volcanic geysers.

Here, large power plants are built over the geysers, where hot fast-moving steam from the geysers drives large turbines to make electricity. To speed up the process, water is sometimes pumped back into the geysers to make more steam, which is then used to drive the turbines once again, thus making it an endless cycle.

Well, this concludes our brief overview of the 4 main types of renewable energy. You can find out more in-depth information on each type by reading our other articles or browsing our website in the link below.

The 4 Main Types of Renewable Energy

Tim McDonald and his wife have been living off the grid since June 2008. If you want to learn to get off the grid and save thousands on your electricity bills, then be sure to Try Earth4Energy For FREE, before you go out and start any renewable energy project.

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