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Wind power information and history dates back since 1000 B.C. – 1300 A.D. where the first and the earliest known use of it can be seen in work principles of a sail boat in which influenced the further development of sail-type windmills. The Persians developed the first windmills sometimes in the seventh century for irrigation pumping and grain-grinding although no official documentation available supporting this statement. These windmills developed by The Persians were using the vertical axis system, the same system used for windmills in China.

They claimed that windmills actually invented in China more than 2000 years ago, but unlike the Persians, a Chinese statesman Yehlu Chuu-Tshai have the early documentation of a Chinese windmills in 1219. The evolution of the Persian windmill fly across to Europe, where the first windmills to appear there were differ from the ones in Persia and China as they use horizontal-axis configuration. These European windmills believed to be more advanced in structure and function where they consisted of blades and rotors clasped together by a tower, which was mounted upon a post, otherwise known as a post mill.

Further developments were made as in 1888 an American; Charles F. Brush produced electricity using wind-powered machines which energize his home and laboratory until the early 1900’s. In 1979 the new age of wind power industry began where wind turbines were made in Denmark with the capacity of 20-30 kW each and progress were made since and the production has gone worldwide.

We can use the wind’s energy thanks to the invention of wind turbines, which operates simply like this: the wind turns the blades, and the blades shall spin a shaft which connects to a generator and of course like we all know the generator produces electricity.

Wind is an inexhaustible source and renewable source of energy, unlike the widely used energy these days: oil. As addition, wind power is not harmful to the environment and it’s decentralized, so even small groups can own and manage their own fields. One can use wind power conjunct with the existing methods which means you can have your home to be supplied with electricity from the local company and from your wind turbine.

If you have the chance to go to a Southeast Asia country called Indonesia which is widely known for its ‘island of gods’ Bali, the use of wind power also applied there as well, although the average wind speed in Indonesia is below 5.9 m/s but it doesn’t mean it’s useless. In 2007 five unit of wind turbines established in Selayar Island (3 units), North Celebes (2 units), and one unit each for Nusa Penida, Bali and Bangka Belitong following 5 others with the power of 80 kW.

Indonesia has mapped some potential areas which have wind speed 5 m/s, such as East Nusa Tenggara, West Nusa Tenggara, South Celebes and South Coast of Java. After knowing the brief history about wind power, and its superb potential power even for less potential wind country like Indonesia we can see how wind power can rapidly developed in the future.

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This entry was posted on Make Wind Power Blog

Article Source:http://www.articlesbase.com/environment-articles/basic-information-of-wind-power-1294523.html

Mankind’s use of solar energy has a history that dates back centuries. Archimedes, renowned Greek mathematician and scientist, used the concentrated reflections of soldiers’ brass shields to set fire to enemy ships during the 2nd century B.C.E. By the 6th century A.D., the Roman emperor Justinian placed so much value on the sun’s warming energy that he established “sun rights,” laws guaranteeing every individual’s right to enjoy sunshine.

For centuries thereafter, scientists courted the sun and its potent heat and energy. In 1767, Swiss scientist Horace de Saussure constructed the world’s first solar collector. In 1883, American scientist Charles Fritts published a description of the first solar cells made from thin sheets of selenium, and in 1908, Carnegie Steel employee William Bailey invented a solar collector composed of copper coils contained in an insulated box, a design which is still in use today.

Through 1953, solar energy use was of the passive kind. But in 1954, solar energy took a new turn, as Bell Labs developed the first solar cell that was able to produce enough electrical current to run common electrical appliances and equipment. Twenty years later, University of Delaware researchers introduced the world to the power of solar panels, with the construction of Solar One, one of the world’s first solar-powered homes.

Today, solar panels are used in all types of construction, from residential to commercial to government buildings. Tax credits and a shift toward more sustainable fuel resources have helped increase the panels’ popularity. But the price of the panels and their installation can still be prohibitive to many individuals attracted by their “green,” earth-friendly footprint. Most homes require a substantial investment to install a system powerful enough to replace electricity and fossil fuels, and some experts have estimated it can take several decades for a solar panel system to pay for itself.

But despite its high cost and long “payback” time, solar is still attractive to many homeowners. Thousands of homeowners take the plunge every year and convert their homes to solar power. In addition to eschewing fossil fuels and creating a more earth-friendly profile, solar energy can allow homeowners to live “off the grid,” disconnecting from the stranglehold of major utilities like electric, oil, and natural gas. What’s more, when a home’s system makes more electricity than it needs, the homeowner can sell that extra electricity back to the local electrical utility. Don’t get too excited: even with that benefit, solar systems can still take decades to pay for themselves.

But just as the solar energy industry has evolved over the past millennia, homeowners interested in incorporating these shiny panels into their home’s design should keep their eyes open: tax breaks, advances in solar technology and increased competition among solar panel manufacturers have caused considerable price drops in recent years. If your home is situated in a position to soak up the rays, and you’re planning on staying put for awhile, solar panel installation might be a wise investment for you.

(ArticlesBase ID #1242927)

Neal is an internet marketing associate involved with the Dot Eco initiative to establish the .eco top level domain. This new initiative will donate over 50% of domain registration proceeds back to fund scientific initiatives and research in climate change, ocean analysis, economic policy, and other environmentally-related areas. Follow Dot Eco or become a Fan on Facebook.

Article Source:http://www.articlesbase.com/environment-articles/solar-energy-1242927.html