Bali-Traveller

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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