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Wind power is the quickest developing renewable energy sector in the world. In the last three years universally established %keword1% power expanse has more than doubled. At the end of 2009 globally installed wind power capacity was 159.2 gigawatts (GW) with an evident growth rate of 31%. In the same year U.S. increased its wind power volume by adding more than 10,000 megawatts to its power grid.

Wind energy sector is excellent generator of new, well paid green jobs. Now more than 500,000 people works in wind industry, and if current trend continues in the next few years, there will be more than one million people working in wind industry.

Wind turbines convert kinetic energy of the wind into electricity. The bunch of wind turbines on one location connected together with a common voltage power collection arrangement and communications network is called wind farm. Most wind farms are based on land but currently offshore wind farms are gaining on popularity customarily because of more potent and more frequent winds that blow offshore.

Wind power is now the singular renewable energy source that has costs comparable to fossil fuels. At the end of 2006 wind total was approximated at $55.80 per MW·h, coal at $53.10/MW·h and natural gas at $52.50. In the early 1980s, when the initial utility-scale turbines were set up, wind-generated electricity total as much as thirty cents per kilowatt-hour, now these costs are around 5 cents/kWh which makes wind power rival with fossil fuels.

Wind power is intermintant energy source. This means that wind doesn’t forever blow when, where and how you want it and this wind energy needs adequate and cheap energy storage answers.

Wind energy is one of the ecologically most standard energy sources. Dissimilar fossil fuels wind energy doesn’t emit unsafe greenhouse gas emissions, and the solitary ecological problem somewhat connected with wind energy is noise contamination coming from large wind turbines. Still the reality that a single 1-MW wind turbine can save around two thousand tons of carbon dioxide yearly should be more than adequate to outweigh (questionable) negative gather of noise impurity.

Wind power has large potential.

It was approximated that the potential of wind power on land and near-shore is somewhere around 72 TW, and this is over five times more than the world’s current energy use in all forms.

United States, Germany, Spain, China, and India are the top five world countries that use wind power The United States became the leading country after surpassing Germany’s nameplate wind capacity in 2008, mostly because of large wind power augmentation in the state of Texas.

Good positioning of wind turbine(s) is the core to successful harnessing of wind energy. Before you put wind turbines into an absolute area you need to understand how much wind does this area have, general wind speeds, frequency and longevity of wind in this area, etc. The ordinary rule of thumb is that doubling a wind speed means an eight-fold spread in power potential.

Wind power use has a very long history. People have been using wind power for more than five thousand years to push sailboats. Windmills also have very long established practice and have been used for irrigation pumping and for milling grain since the seventh century.
Green energy is not the future. It is now.Everyone should be taking a hard look at green energy. Just look at gas prices,or anything that is petroleum based that we use for energy. We have to have an alternate energy source.

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I DID NOT BUILD THIS OR MAKE THE VIDEO, just posting it bcz I encourage everyone to invest in their own. This is a test run of the guys newly made wind turbine. If these links do not work, just google “Build your own Wind Generator”.. www.thekevdog.com www.instructables.com www.forcefieldmagnets.com Output depends entirely on wind speed, windy days will yeild more power. smaller units 5′-10′ average 50-500 watts larger units 11′-20′ produce on average between 500 watts-up (professionally 21′ and larger up to 7.5 Kw and up) Power is defined as the rate at which work is done or energy is consumed. The formula for average power is acquired by dividing work by the time needed to perform work: P = W/t. Power has units of newton-meters per second or joules per second or watts A kilowatt-hour is the electrical energy consumed in one hour at the constant rate of one kilowatt. The average household in the United States uses about 8, 900 kilowatt-hours of electricity each year. Here are some math formulas to consider…(source: www.awea.org Because air has mass and it moves to form wind, it has kinetic energy. You may remember from science class that: kinetic energy (joules) = 0.5 xmx V2 where: m = mass (kg) (1 kg = 2.2 pounds) V = velocity (meters/second) (meter = 3.281 feet = 39.37 inches) Usually, we’re more interested in power (which changes moment to moment) than energy. Since energy = power x time and density is a more convenient way to express the mass of flowing air, the …

Life off the electricity grid, using renewable energy, with best selling author William “Bill” Kemp and his wife, living the good life with a low impact on the planet.

When industrial wind turbines which are 40 stories tall are sited too close to people’s home there is trouble with noise and shadow flicker. Wind developers deny these problems exist and in the state of Wisconsin want to put them 1000 feet from houses. That’s 350 steps. This video shows what happens when wind turbines are irresponsibly sited. The nation is slowly waking up to the downside of wind energy. Developers lie to residents about the impacts these machines will have on the landowners and neighbor’s lives. They take advantage of those of us who want to do the right thing for our environment by telling us there will be no problem with noise, no problem with shadows, and no problem with putting turbines in bird migration flyways. The truth will out, eventually. For the residents in the town of Byron, Fond du Lac county, the truth is what they live with every single day. There is a place for wind energy. It’s just not beside a person’s home.

Raising the share of renewable energy from 8.5% to 20% in the overall energy consumption is a necessary contribution to the global fight against climate change and towards better control over our energy dependence. The various uses of renewable energy are examined: electricity through wind and hydraulic energies; electricity or heat through geothermal and solar energies; electricity, heat, and biofuel coming from biomass. The EU is a world leader in the use and deployment of technologies that exploit renewable energy sources, providing over 350.000 jobs and an annual turn-over of € 30 billion. Download: ec.europa.eu. ec.europa.eu

A short video that I made for science when I was In Year 10, Hope you enjoy Thanks so much to those who have watched this video, which has reached over 28000 views!

Lecture Series on Energy Resources and Technology by Prof.S.Banerjee,Department of Electrical Engineering, IIT Kharagpur. For more details on NPTEL visit nptel.iitm.ac.in.

Carsten Westergaard [Global Technology Director, Vestas] Abstract: Wind energy is a fascinating collection of multi-disciplinary engineering. Harvesting the wind efficiently, we have to understand the metrological conditions, the climate, and the turbulence induced by the landscape in order predict the lifetime performance parameters. We can design the turbines using all of our knowledge from civil, mechanical and electrical engineering to deliver a cost-efficient energy that can compete with other energy sources in todays modern society. Now, the goal of the United States is to have 20% of the electrical energy generated by wind. We will need to understand the logistic chain and the infrastructure required to install and operate turbines. Vestas currently has a fleet of more than 35000 turbines, and we are installing one turbine every four hours somewhere on the planet. Biography: Dr. Carsten Hein Westergaard earned his PhD in 1994 at the Danish Technical University. His dissertation titled: “PIV measurements of turbulent structures” encompassed optical computing and optical flow measurements. Part of his research was completed with Prof. Ronald Adrian at University of Illinois. He started his industrial career in wind technology as an aerodynamics blade designer. Through the years, he has been working with fluid and structure dynamics in many different industries. Joining Vestas Technology R&D, he started Vestas office on campus of the National Laboratory for …

Reno County Kansas explores wind energy during a visit to the Elk River Wind Farm near Beaumont Kansas

An assignment for my video productions class. Also, this video is featured on Nebraska Renewable Energy Association’s website (www.nebraskarea.org).