Electricity From Wind TurbinesIreland Wind Turbines
How Does Wind Power Work?Electricity from wind turbines is made using the natural power of the wind to drive a generator. The wind is a fantastic fuel as it's both clean and sustainable, it causes no pollution and won't ever run out. The technology to make electricity from wind turbines developing fast, turbines are getting cheaper and more powerful all the time, lowering the price of renewably-generated electricity. Europe is central to this high-tech industry as these are the countries which are most interested in how wind power works. The need for clean energyThe more conventional methods of generating electricity work by burning fuel to provide steam which drives a generator, and therefore the turbine. This is done with fossil fuels like coal, oil or gas, or nuclear fuel. Fossil fuels won't last forever and also create pollution such as sulphur and nitrogen oxides that contribute to acid rain and carbon dioxide, which promote climate change across the globe. Although European countries are mainly using conventional sources of power to generate their electricity, wind energy is growing rapidly. At the moment, renewable energy sources provide nearly 5.4% of the European Union's primary energy needs and can potentially provide much more. So how does wind power work?Generally, electricity from wind turbines is made by rotor blades which rotate around a horizontal hub, which is connected to a gearbox and generator found inside the 'nacelle'. The nacelle is mounted at the top of the tower and houses all the electrical components. This kind of turbine is known as a 'horizontal axis' machine. There are lots of different turbine designs, with the most common being the up-wind, three bladed, stall controlled, constant speed machine. The next most popular design is similar, but pitch controlled. There are also gearless and variable speed machines and a smaller number of turbines with just 2 blades, or other concepts like a vertical axis. Benefits of wind power Wind energy has more advantages than simply generating electricity without causing pollution: -
The future of wind energyImprovements in how wind power works mean that trends that have provoked the dramatic fall in wind energy costs are set to continue. Countries from across the globe are now setting wind power targets and an estimated 40,000 wind turbines are due to be installed over the next decade. This means that electricity from wind turbines represents an annual market of around 2.4 billion Euros. Europe is the heart of this global business, with over half of the world's wind energy market being supplied by just six companies. Europe stands to benefit greatly from this move towards sustainability and wind power will work to unite the world in clean, renewable energy and it might not be long before we're all getting our electricity from wind turbines, watch this space! |

