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Biofuels, Solar and Wind as Renewable Energy Systems: Benefits and Risks Review

admin — Sat, 02 Oct 2010 08:52:37 +0000

Biofuels, Solar and Wind as Renewable Energy Systems: Benefits and Risks

With shortages of fossil energy, especially oil and natural gas, and heavy biomass energy use occurring in both developed and developing countries, a major focus has developed worldwide on renewable energy systems. Renewable energy systems include wind power, biomass, photovoltaics, hydropower, solar thermal, thermal ponds, and biogas. Currently, a heavy focus is on biofuels made from crops, such as corn, sugarcane, and soybeans, for use as renewable energy sources. Wood and crop residues also are being used as fuel. Though it may seem beneficial to use renewable plant materials for biofuel, the use of crop residues and other biomass for biofuels raises many concerns about major environmental problems, including food shortages and serious destruction of vital soil resources. All renewable energy systems need to be investigated because humankind has only about 40 years of oil and gas reserves remaining. There is a 50 to 100 year supply of coal resources in the ground, but coal w

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Biofuels, Solar and Wind as Renewable Energy Systems: Benefits and Risks Review is a post from: Renewable Energy

Biofuels (Wiley Series in Renewable Resource) Review

admin — Thu, 22 Jul 2010 08:49:48 +0000

Biofuels (Wiley Series in Renewable Resource)

This book gives a broad overview of the key topics in this field of study, approaching them from a technical and economic angle giving the reader a comprehensive insight into biofuels as a whole. Dealing specifically with liquid and gaseous biofuels that can be produced from renewable resources this text also gives a summary of the past, present and future production technologies and applications of biofuels.
This book is particularly relevant as it highlights the extensive debate of the on-going global needs to find alternative fuels, making it not only a necessary text for working professionals and researchers in the field, but for anyone with an interest in sustaining the earth.

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Biofuels (Wiley Series in Renewable Resource) Review is a post from: Renewable Energy

How Renewable Wind Energy Works

admin — Sat, 17 Jul 2010 08:21:09 +0000

by Old Shoe Woman

How Renewable Wind Energy Works

The most sustainable way to generate electricity is to harness the wind energy. The power that is produced by wind energy is clean as it doesn’t contribute to emission of heat trapping particles that are responsible for global warming. Apart from this its availability in abundance adds to its cost-competitive nature. It is a feasible alternative to the fossil fuels that not only add to global warming but a polluted environment.

There are many wind resources but the factors like how fast and how often it blows play a significant role in its power generation. Basically the power output as a cube of the wind speed. This means that if the wind speed doubles, the power output becomes eight times the original speed. Therefore areas where the wind speed is high are perfect for wind turbine installation. Now in case the wind speed is 7 m/s at a 10 meter height, it will be 8.5 m/s at 50 meters height. The wind speed increases at greater heights, so if you turbine tower higher, it will be able to capture more wind.

Wind energy is one of the fastest growing resources for producing electricity across the world. Despite this expansion, wind power is relatively a smaller source of electricity supply and is just about 1% to the total electricity generation in the world. This is because many people think that it is a costly project but on the contrary now-a-days generating electricity from wind power can be done by investing less than 0. This is possible because there is lots of information on making wind turbine on the Internet. However with so many manuals out there, it becomes difficult to choose the one that is appropriate and gives clear instructions. Homemade energy is good manual that gives elaborate instructions in a clear fashion. The reader doesn’t get muddled up and it is available at the cheap price of only.

The author has been into saving energy from past 5 years and now he invites you to understand how to save energy at home, at his website Renewable Energy 4 Earth. If you save energy, then you indirectly save money apart from reducing expenditures. Read more about the this concept, by visiting renewableenergy4earth.com today.

GE (General Electric) released a TV ad promoting wind energy: Capturing the wind and putting it to good use – Wind Energy from GE, the cleanest renewable energy on earth. The ad has been nominated for the most outstanding commercial in the Emmy Awards 2007. The General Electric Jar ad was developed at BBDO, New York by chief creative officer David Lubars and Bill Bruce, creative director/art director John Leu, creative director/copywriter Brad Roseberry, executive producer Regina Ebel, assistant producer Filomena Lovecchio, executive music producer Melissa Chester. Filming was directed by Traktor (Pontus & Patrik) via Partizan with director of photography Emmanuel Lubezki (Children of Men). Editor was Gavin Cutler of Mackenzie Cutler. FX was done at Mass Market. Music in the ad is ‘Catch the Wind’, performed by Donovan.
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How Renewable Wind Energy Works is a post from: Renewable Energy

Facts about Renewable Solar Energy

admin — Sun, 27 Jun 2010 08:27:58 +0000

by daveeza

Facts about Renewable Solar Energy

The life on earth is dependent on solar energy and the smallest form of life like the microbes and plankton are also dependent on the solar energy for their survival. Solar energy is an environment friendly energy that is devoid of any carbon emissions which lead to pollution. It can be utilized productively and cost effectively across the world. You don’t have to reside in a desert to benefit from solar energy!

At present the inexpensive way to use the renewable solar energy in your homes in by using solar water heating systems or by making your own solar panels. This energy can be effectively used to warm your homes during winter and cool it during summer. The cold north European countries have been using solar energy from past several decades. The advancement in this technology has reached to the level where now, one can substitute it for the grid power. Some other facts about solar energy are:

Solar energy can be used to heat your swimming pools.

Industries are using solar energy to manufacture solar-powered vehicles.

NASA has successfully developed an airplane that can function entirely on solar energy.

How does the renewable solar energy work? Majority of the devices that are powered by solar energy use the photovoltaic cells, which produce electricity as soon as they are exposed to sun rays. These cells consist of panels which comprise of two layers and these layers become positively and negatively charged, once the sunlight falls on them. This leads to the production of electric current, which can be connected to the main supply of your house, and used to run your electric devices like computers, phones and blenders.

The amount of electricity produced depends on the size of the solar panel, strong sun rays and length of exposure to sun rays.

All this may seem like a rocket science, but the fact is that this is a very simple to make. You can start producing your electricity over the weekend. However for this you need to understand and follow the concepts, which are readily available on the Internet in the form of manuals or guides.