Alternative Energy Sources – The Best Aid in Times of Crisis

You have been hearing all about it. It seems to be a big problem now all around the globe. Energy crisis is something that people can be blamed for. But it is too late now to point fingers to whoever committed the biggest mistake. What you can do to do your share in helping to solve the root of the problem is by finding and using available alternative energy sources.

Look around you. Amidst all the technological advancements, you will still be amazed at how nature provides for all the needs of mankind. But through the years, this has been overlooked and taken advantage of. This resulted to the energy crisis that we have now. But you cannot turn back the time to undo the damage. The best thing that you can do is to help resolve the problem or reduce it even with your own little means.

But first, do you know the available renewable sources of energy that surrounds you. It is everywhere. Look up and there is the sun that produces solar power. The sun's rays are converted into electricity through solar cells, solar thermal panels, parabolic mirrors and other medium.

Look underneath. Did you know that the heat coming from the ground can also be turned into energy resources? There are holes that are being drilled in certain regions to find steam that are being produced by the heat underneath. The steam is purified to be used as power to electric generators.

Feel the air. The wind can also create energy as this drives the blades of the wind turbines. This rotation produces electrical current that can be utilized through electrical generator. In 2005, it was reported that the capacity of the wind-powered generators reaches up to 58,982 megawatts.

Hydroelectric energy comes from water. The later can be used for its kinetic energy or the tidal power to produce the energy. It can also be contained in a dam that harness the gravitational fall of a river to become the energy source.

Crisis Alert Now more than ever is the time to act to make use of the available renewable energy resource like the abovementioned. Aside from the fact that they are free, they will be available as long as you know how to care for your environment.

There are methods and studies being conducted by experts worldwide to find ways on how to improve on the utilization of these available sources of energy. People must learn to slowly detach themselves on being too dependent on the use of energy sources that are non-renewable. In a matter of years, the latter will decrease until they slowly diminish. Are you going to wait for that time to come when all along, if you will only look around, you will discover how nature provided for everything that you need. All you have to do is to find ways on how to use them wisely.

Time to Care Upon finding the means on how you can make use of the available resources around you, the next thing that you have to make certain of is how you will care for such. Once in a while, it will be okay to pause from your busy life to look back and give gratitude to where it is due.

You can do your share of caring for these available alternative energy sources by being a good citizen who cares for your environment. You can start in your own simple ways like not adding up to the pollution, planting plants and trees and supporting products that do not contain chemicals that are harmful to the environment.

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Alternative Energy Sources

It seems like the efforts to find the best alternative energy sources are seriously being looked into by lots of countries including most US cities. One proof is the signing of the Kyoto Treaty. The main aim of the concerned group and individuals is to lessen the greenhouse gases and pollutants.

The renewable energy sources have proven to be of great help in reducing the quantity of toxins, which are by-products of the use of energy. These sources also preserve most of the natural resources that people use as resources of energy. What are the most popular sources of renewable energy? Here's a list to give you some basic understanding about the matter.

1. Solar. This works when the sun's rays are trapped into solar cells. The process turns the heat coming from the sun into electricity. When the sun's rays hit solar thermal panels, the power is then converted to heat air or water. The sun's rays can also hit parabolic mirrors. This process can produce steam by heating the water. But you don't need all these scientific processes to be able to benefit from solar power. All you have to do is open the windows and blinds on your room to let the sunshine in. You'll get an instant heater without having to go to any processes that will require conversion of this energy source.

To date, the main disadvantage of using this source is that it is limited. You cannot use it obviously on nighttime and during days when it is raining or even on cloudy days. This has been acted upon through solar power stations. But these are too expensive that there aren't so many of such piece around the globe.

2. Wind. The energy coming from the wind boosts the blades of the wind turbines. As this happens, electricity is produced through the use of electrical generator. In the old days, windmills are created so that mechanical machinery could perform physical labor. This includes the pumping of water and crushing of grains that are essential in planting and farming.

Now there are large scale wind farms that produce electrical currents. The end products are then distributed to national electrical grids and small turbines owned by individuals to distribute electricity to far flung areas and homes. There are many advantages of this kind of power. The main one, of course, is that this doesn't produce any by-products that can be harmful to the environment. And we will never run out of this source of renewable energy.

3. Geothermal. This comes from the bottom of the earth. Holes are being drilled in certain regions. The hot rocks that can be found underneath produce steam. This is being purified to be used to be able to drive turbines. The latter then become power source for electric generators.

To secure that no harmful by-products are going to be produced in the process, geothermal plants must be created accordingly. Once this has been set up, this will be self-sufficient in creating energy sources.

4. Hydroelectric. This power is being created through dams that contain water that can drive generator and water turbine. Tidal power can also be used if dam is not available. The idea here is to make use of the kinetic energy of water.

Just by reading through the available alternative energy sources, you will be amazed at how nature works wonders. It is your responsibility to care for everything around you as to be able to gain from the benefits that each source of energy can give you.

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Alternative Energy Source Pros and Cons

Due to increasing global energy consumption and the probable depletion of the world's non-renewable energy source, ways of exploring and using alternative energy sources are being undertaken. Using alternative energy source can be both beneficial and difficult. Let us explore the different pros and cons of alternative energy source.

A major advantage of renewable energy is that it is renewable therefore it is sustainable and will never run out. More importantly renewable energy produces little or no waste products that may pollute or has harmful effects on the environment.

Some countries using renewable energy as another source of energy are also showing some economic benefits especially in many regional areas. Most of their projects are located away from the urban centers and capital cities. They were able to increase the use of local services as well as tourism.

General disadvantage of using renewable energy is that it is difficult to generate large quantities of electricity similar to that of conventional fossil fuels. Another common problem among alternative energy sources is the reliability of the energy supply. Since it is naturally generated, renewable energy supply relies on the weather condition.

Another drawback or disadvantage of alternative energy source is that it is relatively more expensive to set up the equipment necessary for generating the energy.

Here are the several advantages and disadvantages of alternative energy source.

• Solar energy- the sun is a great source of energy since it is free and is efficient. It is possible to maximize the energy given by the sun to replace traditional electricity. But there are limitations, like areas at high latitude and places with frequent rains are places not capable of producing efficient solar energy.

• Wind energy- wind is also an efficient electricity source. It is possible that wind energy can replace up to 20 percent of the total electric consumption in the future. It is also a very environment friendly source of energy since there are no harmful gases produced in the process of converting the energy. Location is a very important factor in using wind energy, high latitudes and coast lines are good places to set up windmills. A relatively big land area is also needed to put up sufficient number of windmills.

• Hydroelectric and tidal energy- both of these energy come from water. With hydroelectric energy it is mainly sourced from dams. Tidal energy, on the other hand, uses the natural tides of the ocean. Production of energy from water is another clean way of producing energy. However there are several disadvantages. Putting up river dams as sources of hydroelectric energy is very expensive, while tidal energy source depends much on the ocean. Since oceans tends to unpredictable there are only 9 places worldwide that are suitable for this kind of energy source. And tidal energy power plants are also said to provide negative effects on the migratory birds and the fishes.

• Biomass- biomass consists of fermented animal waste, agricultural crops, grains and other natural products. It can be used to produce an alcohol and also replace gasoline needs. It maximizes waste materials as an alternative energy source. A drawback, it that it still produces greenhouse gas.

Alternative energy sources although it is renewable also pose some disadvantages. But its unfavourable effects are relatively smaller than the harmful effects of conventional fossil fuels. The hunt for a cost-efficient and environmental friendly alternative energy source does not stop on the latest discovery.

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A Bright Future for Solar Energy: An Alternative Energy Source

I was first introduced to solar energy in the movie, Race the Sun with James Belushi and Halley Berry in the lead. It was a story about low- income and under achieving Hawaiian students encouraged by their teacher to join the Solar Car race. In the movie, a car shaped like a cockroach and covered with solar panels used the sun's rays as an alternative energy source to run the car.

Solar energy is the light and the heat from the sun. Solar energy is free and its supplies are unlimited. There are n air and water pollution caused about by using solar energy. But there is still some impacts on the environment although indirect.

Photovoltaic cells used to convert sunlight into electricity uses silicon and also produce some waste materials. There are also large solar thermal farms and these farms can also be harmful to the environment and desert ecosystems if not properly managed.

Solar energy can be used on different aspects. Solar energy can be used in agriculture. Greenhouses (which is entirely different from greenhouse gas) convert solar light to heat to be maximized in enhancing the growth of plants and crops. Greenhouses has been around since the Roman times and modern greenhouses were built in Europe in 16th century. Greenhouses are still an important part of horticulture nowadays,

Daylight systems are also being used to maximize the energy released by the sun. It is used to provide interior illumination replacing the artificial lighting. Daylight systems include sawtooth roofs, light shelf, skylights, and light tube. Daylight systems when they are properly implemented can reduce lighting-related energy consumption by 25 percent.

Solar energy can also be developed into solar thermal technologies which can be used for water heating, space heating, space cooling and process heat generation. Solar energy can also be used to distil water and make saline or brackish water potable or drinkable.

The solar water disinfection or SODIS involves exposing water-filled plastic polyethylene terephthalate or PET bottles. This process takes a long time, since the exposure time varies on the weather conditions. It requires a minimum of six hours to two days during days with overcast conditions. Currently, there are two million people in developing centuries use SODIS for their daily drinking water needs.

Also sunlight can be converted into electricity using photovoltaics or PV. PV has been mainly used to power small and medium-sized things like a calculator powered by a single solar cell. There are homes powered by photovoltaics. Using solar energy for water and space heating is the most widely use application of solar energy. While ventilation and solar air heating is also growing in popularity.

There are three main ways in using solar energy. The main way of using and converting solar energy is by using the solar cells. Solar cells convert light directly into electricity. Solar cells are also called photovoltaic or photoelectric cells.

Meanwhile, solar furnaces use a huge array of mirrors to concentrate on the Sun's energy into a small space and produced very high temperatures. Solar furnaces are also called "solar cookers". A solar cooker can be used in hot countries to cook food.

With all the benefits if using solar energy, there is still a downside for this alternative energy source. It does not work during night time. The cost of setting up solar stations is expensive, but the benefit of using solar energy when accumulated is so much more.

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