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Wind powered energy
A Guide to Wind Powered Energy

Wind power or wind energy is an attractive green energy option for many people for various reasons:

  • It is an abundant, sustainable, environmentally-friendly, and never-ending resource. The UK has the fortune of having around 40% of Europe's wind resource which is potentially sufficient to power the entire country 3 or even 4 times over.

  • Wind power is an important form of green energy. Investing in wind energy is an essential part of combating the negative impacts of climate change.

  • New wind-powered turbines can make clean electricity safely to replace the traditional energy sources, such as coal or gas, which cause pollution.

  • Developing wind energy does not cause any environmental damage nor do wind turbines produce pollutants of any kind.

  • The cost of wind power is now comparable to that of conventional electricity. Since 1992, unit prices of electricity from wind power have dropped from 11p to approximately 2p, making it the cheapest form of renewable, green energy.

How wind energy is generated

  • Wind power (a form green energy) is produced by wind turbines which are usually located in wind farms.

  • Modern wind turbines range from 25m to 80 m in height with propellers diameter ranging from 30m to 65m.

  • As the atmosphere is heated unevenly by the Sun, there are inevitably some areas which become warmer than others.

  • As these warm patches of air rise, other air blows in to take its place - this exchange produces wind (and green energy).

  • This wind energy can be harnessed by building tall wind turbines which have a large propeller on the top.

  • Green energy (electricity) is produced as the wind moves the propeller around. More and more electricity is produced with increased number of wind turbines and of course, more wind.

  • Wind turbines start operating at wind speeds of 4 to 5 metres per second and reach maximum power output at around 15 meters/second.

  • The propeller blades rotate at anything between 50-10 revolutions per minute at constant speed.

  • The ideal locations for wind farms are areas where you can guarantee a good strong supply of wind such as by the coast, at the peaks of rounded hills, open plains and mountains gaps.

  • Wind turbines typically last around 20-25 years, but can be disposed off safely when they come to the end of their life.

  • A single 1.8 MW wind turbine at a standard site would produce over 4.7 million units of electricity annually, which is sufficient to meet the needs of over 1,000 households—a truly powerful green energy source!

Some more information about wind power or wind energy

Wind energy is one of the most popular and safest green energy technologies. It is worthwhile to mention that no member of the public has ever been injured during the normal operation of a wind turbine.

Contrary to popular belief, wind turbines are not noisy. As wind speed rises, the noise of the wind masks the noise made by wind turbines.

It is necessary to mix both onshore and offshore wind energy to meet the UK's targets on climate change. At present, onshore wind is more economical than building offshore wind sites.

It is of course cheaper and greener to save electricity rather than to generate it, even if it is by wind power. However, wind energy remains a better option as the fuel is free. The challenge in hand is to improve productivity in order to bring the price of wind energy down for everyone's benefit. By ensuring a cheap price, more and more people will be inclined to use wind power as a form of green energy.

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