Renewable energy can be from many of the natural resources we have available such as the sun, tides and the wind. Renewable simply means they are replenished naturally and there is no danger of depleting them.
Many factors are causing the scramble to find renewable energies that we can use in place of fossil fuels. With global warming, the price of oil and utility costs going up regularly, there is definitely a need for renewable energy.
The big investors believe in the concept. They are making money available to study this latest idea of how to conserve energy and protect the environment. In 2006, 100 billion dollars was invested into renewable energy.
Wind power is one of the renewable energies that are being studied. It is being used in European countries as well as in the United States. Solar thermal power is being used in the United States and Spain. Geothermal energy is being used in California. The country of Brazil uses ethanol fuel derived from sugar cane.
When we think of renewable energy we think of it more on a large scale. But there are also smaller sources that are used in more rural areas. Kenya is one that has the highest use of solar power in the world. They sell about 30,000 of the smaller solar systems every year.
Of the different renewable energy sources, the renewable energy used the most is solar power. This may be due to solar energy being the most readily available energy. It has been used since early prehistoric times, although not to the extent it is used today.
The solar panels absorb the heat from the sun and provide heat for many things. Over the next few years experts say renewable energy such as solar power will be in use in millions of home worldwide. Did you know there are even traffic signals that use solar power? The uses for this type of energy are growing by leaps and bounds.
There are programs in India that are taking advantage of solar power as a renewable energy. They are working on a plan to have solar energy in at least a million homes in the next several years. Because this area has long days and abundant sunshine it is the perfect spot. Solar thermal energy is already in use for heating water in residential and industrial settings.
Biomass is one type of renewable energy. This is an organic material that contains stored energy. This energy it stores comes from the sun. Plants soak it up the energy during photosynthesis. When you burn wood in your fireplace you are using a biomass product.
Other examples of biomass are crops, garbage, landfill gas and wood. When the biomass material is burned, heat is released. This includes burning waste to create steam for making electricity or for heating residential and industrial buildings.
Biomass, in addition to being burned can be converted to ethanol and biodiesel. The latter can be made from left over food such as vegetable oil and animal fat. There are many alternatives for producing renewable energy. All we have to do is look around us. The planet is a plethoria of items which can be used to help conserve the earth and cut down on the use of fossil fuels.
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