Alternative Renewable Energy
Alternative Renewable Energy
With the worlds’ population growing and our economies developing quickly the demand for electricity has grown exponentially as well. With it comes an increased usage of fossil fuels.
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Because of the damage these fossil fuels are causing to our environment many people are now looking for alternative renewable energy sources to power our society. The burning of fossil fuels is a major contributor to pollution effects such as acid rain, smog and global warming.
For some years governments thought that nuclear power could be the answer to our energy problems. Today we know of the many dangers this technology poses.
Based on the latest scientific knowledge alternative renewable energy forms are the best alternative to fossil fuels and nuclear power.
The three main types of alternative renewable energy are solar energy, wind energy and marine energy. Solar technology converts the sun’s radiation into energy that we can use.
Wind power technology uses wind turbines to generate electricity, and marine energy is energy that is derived from the waves and tides of the sea.
Since we have so many alternative renewable energy options, why do we still burn copious amounts of fossil fuels? In this article we try to answer this question as well as many other questions you may have about alternative renewable energy.
One of the main characteristics of alternative renewable energy source is the fact that they continually replenish themselves. In other words, there is no danger that we might run out of sun, wind or water energy any time soon.
Alternative renewable energy is also a better option than fossil fuels because no green house gases are released during the energy generation process. Alternative renewable energy is therefore often referred to as clean or green energy.
As a society we are much better off using energy sources that are already freely available in nature and in addition avoid all types of energy that cause damage to our environment. Fossil fuels and nuclear power fall under that description.
Wind turbines that generate electricity from wind do not release any greenhouse gases into the atmosphere. Wind energy even has the potential to satisfy our country’s growing need for electricity.
However, despite these advantages the usage of wind as an alternative renewable energy has been held back for decades.
For hundreds of years and even before the Middle Ages windmills have long made use of wind energy to grind grain and pump water.
Wind power is a derivative of solar power, indirect solar power, if you like.
Due to the spinning of the earth the sun heats up different parts of our atmosphere. While one part is being heated up another one is cooling down. This leads to differences in pressure in the atmosphere. It is this difference in atmospheric pressure that causes wind to blow.
Today, wind power is one of the fastest growing forms of alternative renewable energy worldwide.
The technology behind wind turbines is actually surprisingly simple but effective. The shaft of an electricity generator is being fitted with rotor blades. The wind then spins the blades which in turn rotate the generator to produce electricity.
Many wind farms have already been built all over the world to make use of this alternative renewable energy form. In addition, significant research and development is being conducted to find ways to built more wind farms offshore.
The biggest advantage of an offshore location are the stronger and more frequent winds one can find in the ocean. Some wind farms were already built along the coast lines of some countries and the technology is very promising.
As wind power technology develops wind power might become a major global energy provider.
The sun releases an abundance of energy every day and it makes sense for our society to try and harness as much of this alternative renewable energy as possible.
The main reasons why people want to use solar power are that it is freely available, vast and renewable.
In the past the only way in which houses took advantage of the sun’s energy was through the windows, i.e. the sunlight was used as a natural light source and to warm the rooms.
However, over the past five years more and more people started using the sun to provide hot water for their household, too.
There are already numerous solar technologies available to use in your home such as solar hot water systems and solar heaters for swimming pools.
However, if we want to completely substitute our current fossil fuel consumption with alternative renewable energy many more technologies need to be developed.
