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Solar Energy Profile: Straight from the Source

budianto — Mon, 25 Jan 2010 07:34:14 +0000

Every day, the Earth receives more energy from the sun than mankind uses in a year. Still, solar energy remains a tiny sliver in the global energy mix. Falling prices and better efficiency could change this, but can it happen fast enough?When it comes to meeting energy needs, humanity has not been able to eliminate the middle man. The energy we use today comes from the sun, but we get it indirectly. Sunrays fed countless generations of plants and organisms millions of years ago, which we now use to burn to produce electricity, heat our homes, and run our cars. Its heat also strikes up the winds that we use to sail ships and run turbines. Despite our dependence on the sun, mankind has still not fully realized the potential of harnessing the sun?s vast energy directly. Worldwide Importance and Future TrendsEven with steady annual growth, the International Energy Agency says solar energy – combined with wind and geothermal power – still only supplies less than one percent of the world?s energy. In Germany, the global solar market leader, solar supplies around 0. 3 percent of national electricity demand; in the United States, it supplies less than 0. 1 percent. The UN?s annual “Global Trends in Sustainable Development” report said that the solar sector attracted 16 percent of the 70 billion U. S. dollars invested in renewable technology in 2006 – behind wind (38 percent) and biofuels (26 percent). According to the World Energy Council, solar water heating market is growing at a rate of around 20 percent a year, and solar PV at 35 percent. If the costs of solar technology continue to drop, it has a chance to compete with other forms of energy production. In places like sunny California, solar has already reached “grid parity,” which means the costs of producing solar power are now competitive with conventional energy production even without government subsidies. Sinking production costs would allow solar power to eventually join or even replace coal, gas, and oil as a primary energy source by the end of the century, which some experts say is possible. Global Resources and ProducersThe amount of solar energy that reaches the Earth?s surface every 20 days exceeds the energy trapped up in all of the planet?s coal, oil, and natural gas reserves. The trick is finding cost-effective and efficient ways of converting this abundant resource into usable energy. Currently, there are two main ways of doing so. Photovoltaic (PV) panels, thin pieces of crystalline silicon, transfer sunlight directly into electricity. Solar thermal collectors, on the other hand, are used to heat water for domestic or industrial use and to run steam power plants. Germany is the world?s leading producer of PV and solar heating technology and energy. In 2006 alone, 968 Megawatts (MW) of PV was installed in Germany. Japan, which added 292 MW last year, is also an important market and exporter of PV technology. China is aggressively adding solar systems to its energy mix. The country already consumes half of all solar-heated water in the world, and aims to increase solar water heater coverage by 50 percent by 2010. China is also emerging as an important producer and consumer of PV cells, which the government is integrating in remote and urban area. Energy OutputThe energy output of photovoltaic and solar heating depends on the size location of the system. Most areas receive ample sunlight, but deserts that seldom get cloud cover are better suited for solar energy production. Standard PV cells have an energy conversion rate of 6 to 8 percent, meaning that 6 to 8 percent of all solar power absorbed is turned into energy. Some prototypes have already achieved conversion rates of more than 40 percent, but are still too expensive for mass-market production. Solar heaters utilize solar collectors that are significantly more efficient. Current collectors turn between 60 to 70 percent of absorbed sunlight into heat. Concentrated solar thermal systems use mirrors to reflect sunlight onto a tower, producing extremely hot temperatures to boil water or other fluids and produce steam to drive a thermal power plant. An 11 MW concentrating solar power plant was completed near Seville, Spain in March 2007. A 154 MW facility is planned in Australia, and a 500 MW system in California?s Mojave Desert. Environmental Impact and DrawbacksManufacturing and installing solar systems requires energy, and as with almost any industrial activity, involves handling hazardous materials, such as arsenic and cadmium. Mass production of PV cells is sometimes marred by shortages of quality silicon. Large-scale solar power plants also take up lots of land. Overall, however, the environmental impacts of switching to solar energy are positive. Solar heaters require significantly less fossil energy input than natural gas and electric systems. PV systems are cleaner energy producers compared to coal and oil. Greenhouse gas emissions of solar PV plant including production and installation are eight times less than that of a coal-fired plant. The initial costs of solar heating and PV systems, however, prevent many homeowners from installing them. But falling costs and subsidies have helped sustain market growth in some countries. Like with wind turbines, another technical problem is effectively storing solar energy to provide power throughout nights and cloudy days.

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Solar Panels For My House – Blueprints DIY Solar Energy

budianto — Sun, 24 Jan 2010 07:36:44 +0000

Fortunately, more householders are also beginning to see the advantages of using green energy. I will even show you in this article how replaceable solar panels for my house have shot down my electrical bill. Normally it is determined that a typical family spends more than $1,300 on heat and electricity each year, according to the Office of Energy. I’m certain that you have recently seen some form solar panel, particularly those than run on solar panel powered calculators. With a touch more effort, they can be built cost effectively to generate sufficient electrical energy to run most households even my house! They’re capable of soaking up daylight and move to the semi-conductors for the electrons to be damaged. The cells are called photovoltaic and work to convert sunlight into electric power that may be employed to run the household appliances. How Does the Earth4Energy solar power at Home System Work and What Are Its Benefits? It harnesses the widely available sun energy to free the house owner from ever having to depend on the power company for electricity. It might be running our houses and companies in the future. Does my DIY solar panels energy for my house actually work? The panels truly work by breaking loose the electrons and moving them in a certain way which generates an electric current output. This is truly one of the best ways to generate energy in your home while going green and saving a bunch of money.

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The How and Why of Solar Energy

budianto — Sat, 23 Jan 2010 07:45:33 +0000

More and more people are becoming conscious about the environment and going for natural energy options. Solar energy is one such option that is simple and economical. Learnt more how to use solar energy from the points mentioned below. The solar panels located on the house roof capture sun rays. This sets off another panel located on the other side of the home which converts the electricity or current from direct to alternating. This leads to creating of electricity in all the outlets that are there in the house. In case the residents of the house fail to use it immediately, the current is stored for future use. Using solar energy has benefits on two fronts ? financial and environmental. Financial benefits are created through the reduction of energy bills. People can also garner credits from the local electrical authority. Using solar energy is also said to enhance the real estate value of a residence. Environmental benefits are created through the reduction of problems related to global warming. It also leads to conservation of fossil fuels. Pollution is also reduced leading to a cleaner air and water. Ensure that you go through quality instructions while installing solar panels on your own. This will relieve you of stress and also make you feel pleasant about your DIY project. Internet is a good place to start searching for DIY manuals. We have gone through several guides to present you a good way of building your very own solar panels for energy. Do not hesitate and acquaint yourselves with how to generate solar energy and reduce your energy bills.

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Renewable solar energy

budianto — Fri, 22 Jan 2010 07:34:08 +0000

Did you know that earth receives and incredible amount of solar energy from sun which is a star that has been burning from past 4 billion years. It can supply enough energy within a minute that the planet earth would need for the entire year?s consumption. The solar radiations that hit the earth in a period of three days are equivalent the energy that can be generated from the existing fossil fuel reserves of earth. It is a myth that solar energy is not practical in populated areas. It is just as practical in the populated areas as it is in the rural areas. An average home has enough space on roof to create electricity for the entire home?s supply. Solar energy is not only free but an inexhaustible source. The renewable solar energy was first discovered in 1767 and then in 1839, a French physicist, Edmund Becqueral discovered the ?photovoltaic effect?. Even though solar energy had great potential, it was left behind whenever the mention of fossil fuels came up. But ever since the Gulf War, solar energy development took place at large scale and considering the fact that the first practical solar cell was made some 30 years ago, we have come a long way. In the present scenario, you can find many websites offering the technology to generate your own electricity at very cheap prices. There are eBooks which can be downloaded within minutes of payment and with the help of their step by step guidance you can easily construct your own solar panels and harness the renewable solar energy. Solar energy is sought after in many developing countries and is one of the fastest growing segments. Governments across the world are able to fill the electric needs of their villages. It is more practical than expanding the extending the wires, which are expensive, in the remote locations.

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Sun shines bright on Solar Energy Panel use

budianto — Thu, 21 Jan 2010 07:34:25 +0000

Here comes the sun, make the most of the renewable energy. This is a clean and environmentally sound means of gathering solar energy. Solar energy has been used since prehistoric times, but in a most primitive manner. In the coming years it is expected that millions of households in the world will be using solar energy as the trends. Solar energy collected through Do It Yourself solar panels could be used to meet the electricity requirements. Through Solar Photovoltaic (SPV) cells, solar radiation gets converted into DC electricity directly. This electricity could be either used as it is or can be stored in the battery. This stored electrical energy then can be used at night. SPV can be used for a number of applications such as domestic lighting, street lighting, village electrification, water pumping, desalination of salty water, powering of remote telecommunication repeater stations and railway signals. Solar energy or green electricity thus created could be used for Cooking/Heating, Drying/Timber seasoning, Distillation, Electricity/Power generation, Cooling, Refrigeration, Cold storage. Many small time farmers and rural people could benefit by building solar panels at home. This would help them in saving huge cost invested in purchasing readymade Solar Energy Panel. In agrarian country Solar Energy Panels come as a boon. Constructing Solar Energy Panel does not call for expert knowledge. Step-by-Step guides available in the market would provide end to end subject knowledge, about raw materials needed to build a solar energy panel and instruction on construction. They also suggest were the raw materials could be procured.

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Green Living Kit.

budianto — Tue, 06 Oct 2009 07:33:59 +0000

Very Unique Product In The Renewable Energy Niche. 12 Diy Guides Including Solar And Wind. You Need This Product On Your Review Pages To Show Visitors Some Diversity. See Conversion Screen Shots At www.greenlivingkit.com/conversions.html.

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Solar Energy Concentrator

budianto — Mon, 05 Oct 2009 07:49:59 +0000

Purchase: http://hilaroad.com/video/ This video demonstrates how solar energy can be focused with a curved mirror.
Once focused this energy can be used to cook food, sterilize water even create…

Learn How To Make Power At Home.

budianto — Sat, 03 Oct 2009 07:44:31 +0000

Make Power At Home – Windmill Plans And Solar Panel Design Plans With Wiring Instructions.

Learn How To Make Power At Home.

Facts About Solar Energy

budianto — Tue, 29 Sep 2009 07:45:56 +0000

Solar energy consists of the light and heat emitted by the sun, in the form of electromagnetic radiation.

With today’s technology, we are able to capture this radiation and turn it into usable forms of solar energy – such as heating or electricity.

Although one could go into technical dissertations on the subject of electromagnetic radiation, how it is converted into solar energy, and the exact qualities of its electromagnetic rays, this is not something the average person needs or wants to know.

But in order to be able to benefit from the use of solar energy, there are a few facts you should know. Knowing these facts can assist you to make sound decisions, when looking at the use of solar power as a clean energy source for your home, RV, or whatever the case may be.

Environmental Facts about Solar Energy?

All life on earth is dependent upon solar energy. In fact, without solar energy, there would be no life at all. Even the lowest life forms, such as plankton and microbes, need solar energy (in the form of sunlight) in order to survive.

Solar energy is completely environmental friendly, producing absolutely no carbon emissions or other harmful byproducts whatsoever.

Solar energy can be used successfully and cost-effectively just about anywhere on the planet. You do not need to live in a tropical or desert climate in order to benefit from the use of solar energy. Solar power has been used successfully in many cold climates and even in the polar regions.

Every area of the United States of America receives enough sunlight to benefit from and make use of solar energy and solar technology.

Currently, the cheapest and most effective way of using solar energy in your home is through the use of solar water heating systems. In fact, solar water heating systems have been commercially available in the United States for over a 100 years.

Solar energy can be used for heating homes effectively in cold climates, as well as in warm climates. In fact, for decades now, solar heating has been in use several cold-climate northern European countries.

Solar energy technology has advanced to the point where it can be now be a viable and cost-effective replacement for regular grid-electricity.

Solar energy is rapidly increasing in popularity – so much so that the demand for solar-powered gadgets is currently greater than the supply.

Facts about Solar Energy Usage

Solar energy can be used to provide electricity, heating and hot water for homes.

Solar energy can also be used to heat swimming pools. Many pools in Scandinavia and Europe are in fact heated with solar energy.

Solar Energy can be used to power vehicles, such as solar powered cars, and even a solar powered airplanes. NASA has successfully designed, built, and tested an airplane which is powered wholly by solar energy.

A few examples are: solar battery chargers, solar flashlights, solar calculators, solar radios, solar-powered attic fans, solar power backpacks (to recharge batteries for small devices), hybrid solar chargers (for cell phones, satellite phones, and more), solar-powered garden lights … and much, much more.

To find more information about solar energy, and to get a full understanding of solar power devices, see Facts about Solar Energy and Portable Solar Power.

Self Made Solar Energy.

budianto — Sun, 27 Sep 2009 07:49:19 +0000

Killer Sales With Super Professional Web Design Page That Will Convert Your Traffic Into Super Easy Sales. See The Site Design To Understand Why Our Site Converts – Enough Said.

Self Made Solar Energy.