Wind Turbines

GE, the US industrial group, is promoting and showing confidence in offshore wind technology by buying ScanWind, which makes direct-drive turbine components. This move will help in generating thousands of new jobs in the field of designing and manufacturing turbines. This move will affirm the confidence of investors in the fledgling offshore wind industry, which has been weighed down by concerns about costs and reliability. GE is moving ahead with establishing turbine manufacturing facilities to serve the European markets at first. They have to make up their mind about the size of the investment and location. 5 Comments

Wind energy is undoubtedly one of the cleanest forms of producing power from a renewable source. There is no pollution, there is no burning of fossil fuels, and unless something very drastic happens, you don’t run out of wind. But it’s not like you can erect a wind turbine anywhere and it will start generating power for you. There are lots of factors that can make an impact on the amount of energy you can generate out of wind. 12 Comments

Most of us want to reduce our carbon footprints but currently most of the alternative energy products are simply unavailable for urban population that lives in metros. But gradually the scenario of alternative energy is changing and manufacturers have started thinking from common person’s point of view. Recently EarthTronics, which is based in Muskegon, Michigan, has developed a wind turbine that can be used by individual homes. EarthTronics also claims that it can operate at speeds as low as 2 miles an hour. Consequently, homeowners this fall will be able to buy a wind turbine at hardware stores that tackles the small wind industry's bete noire: slow wind. This turbine is named as Honeywell Wind Turbine and it will be distributed through Ace Hardware stores in the U.S. It will be sold for $4,500. WindTronics developed the turbine and licensed the technology to buildings systems giant Honeywell. 17 Comments

The Metropolis Magazine has been holding Next Generation Design Competition since 2003. They want to provide a platform for young designers to promote the spirit of activism, social involvement, and entrepreneurship. They offer prize money of $ 10,000. But the real attraction is the publicity given to the projects of winners and runners-up. This recognition helps abstract ideas take concrete forms. For 2009, the theme for the Next Generation Design Competition was: How do we fix our energy addiction? They offered some guidelines, "Think about how we live and work, what we use, how we get where we need to go, hidden costs to our pocket books and the environment, across the whole design spectrum. Focus on one area that needs fixing—products, interiors, buildings and landscape, communication systems, or anything else you can imagine—and develop your idea fully. And above all, think of our energy addiction as a design problem at all scales." 19 Comments

Wind power is the fastest growing industry in the alternative energy sector. Wind turbines generate clean and green power for us but they have certain precondition. One of it is the power unit has to be set up in strong wind area. But Green Energy Technologies has developed a brand new wind power generator known as the WindCube. It is smaller compared to the normal wind generator. WindCube is specially designed to set up on the roof of a building in urban and rural areas. WindCube carries a 22 x 22 x 12 feet framework and its single unit can produce a maximum of 60kW of power. Mark L. Cironi, who is the president and founder of Green Energy Technologies, explains, "Building owners anywhere can consider being a part of the renewable energy picture. With WindCube, it’s not necessary to have the wind of Kansas or Nebraska to become a generator of wind power. In states with excellent renewable energy incentives, moderate wind and high electric rates, the payback can be as little as three years." 41 Comments

These days many companies are exhibiting awareness about clean and green energy and trying to use that technology for reducing costs too. Recently Minneapolis-St. Paul International Airport has set up ten wind-powered electricity generators. They are using the energy to power an electric utility vehicle. We are acquainted with the fact that airports are windy places. So a knowledgeable management can utilize this air power and boost its environmental credentials too. They have installed ten 1 kW Aerovironment wind turbines on top of the airport fire station to harness the power of prevailing northwest winds. The turbines are expected to generate 10 kilowatts of electricity an hour. They are powering their fully-electric Cushman Motors e-Ride exv2 utility vehicle with the energy generated by these turbines. Their utility vehicle has a range of 45-55 miles and costs around $200 a year to run. 3 Comments

We all know about the impending future of the fossil fuels. Ultimately we will be forced to look for alternative energy fuels. Those countries who have resources and infrastructure are taking up these challenges very intelligently. Scientists and researchers know that existing alternative sources of energy can’t take up the challenges created by total exhaustion of fossil fuel. So they are continuously trying to better the existing technologies of the sources of alternative fuels. This time Leviathan Energy presents a technology for new and existing wind farms to produce more energy from a relatively small investment, a solution every manufacturer worth his/her salt wants i.e. more by investing less! 3 Comments

As soaring oil prices and greenhouse gas emissions fuel the search for cheaper and cleaner sources of energy, a Japanese aerospace manufacturer may have found the right stuff for a solution. It’s a windmill you can call your very own. Yokohama-based aerospace manufacturer, Nippi Corporation, has developed a revolutionary 20 kW wind turbine power generation system that’s turning heads everywhere. 18 Comments

This summer, Anoka, Buffalo, North St. Paul and 8 other Minnesota cities are gearing up for the production of wind energy. They will use recycled turbines for this purpose. In Buffalo, the work will start from June. After the completion of this project Buffalo will have the honor of the first city with one of the 115-foot-tall turbines among the 11-member cities of the Minnesota Municipal Power Agency (MMPA). They are getting the windmills from Palm Springs, California wind farm . Payment will be done by the joint-powers agency which has agreed to pay about $3.6 million for a dozen refurbished windmills. The Hometown WindPower program is aspiring to meet a state law that calls for most electrical utilities to provide 25 percent of their total electricity sales from renewable sources by 2025. These non conventional sources can be wind or water power. Officials confirmed that Shakopee, North St. Paul and Buffalo have picked sites for the 160-kilowatt windmills. Buffalo utilities director Joe Steffel wants to start work on this project by June 1. 8 Comments

The life of wind turbine blades can be significantly enhanced by modifying their shape. There is a lot of load on the large wind turbines when the blades rotate and by providing a movable trailing edge to these blades the load can be tremendously reduced. It is similar to the flaps used in the aeronautical industry. The flaps in aircrafts regulate the lift during take-offs and landings. Risø National Laboratory for Sustainable Energy is using an elastic material to make trailing edges of wind turbine blades. 1 Comment

The main work of wind turbines is to utilize the energy of wind and convert it into electricity; stronger wind is considered good for electricity production. But the speed of wind should not be too strong because it makes turbines spin too fast and in this process it commits suicide! Why is it so? Because turbine blades get ripped off by stronger winds – excessive heat damages the alternator. Turbine tower too can't remain unaffected by the strong wind. To prevent all this damage a mechanical breaking system furling is generally used. This method prevents wind turbine from spinning too quickly by turning the blades away from the direction of the wind. Furling can be manual or automatic with same goal i.e. turning the turbine blade edges into the wind when the wind is dangerously strong and stormy. 18 Comments

Officials from Highland Community College (HCC) and EcoEnergy officially broke ground in early October for a facility to house the HCC Wind Turbine Technology Program, the first associates’ degree program of its kind offered in the state of Illinois. 7 Comments

Wind energy has a formidable place in the field of alternative energy but critics always worry about the preservation of bio-diversity and farm birds. It is always a priority for the wind energy producers to keep in mind the comforts of the human and bird population. When plans were announced that UK will built the tallest wind turbines in the country the Npower Renewables tried to tackle the issue of biodiversity to alley the fears of environmentalists. Though they propose a plan of placing 65 turbines on nearly 5,000 acres (2,000ha) of hillside near Llanbrynmair in Powys they are tackling the issue of ecosystem too. Each turbine would be 137m (449ft) high. 1 Comment

When we talk about wind energy, we don’t specifically mention ocean winds. But global satellite maps from NASA promise a new hope. Nearly a decade of data from NASA’s QuikSCAT satellite gives us hope that we can harness ocean’s wind for energy generation. These maps can help in locating and planning the offshore wind farms for producing electric energy. 3 Comments

Wind energy is clean energy but not without its usual baggage. Their noise disturbs those who reside in the close proximity with a wind farm. Many a time wind turbines are forced to operate under partial load so that residents and wind farms can exist in peaceful co-existence. But operating under partial load means lower energy production. Even high winds go unutilized in residential areas. The sources of the noises are many. First is the motion of the rotor blades and another is the cogwheels. Cogwheels generate noise in the gearboxes. These are transported to the tower of the wind turbine, where they are emitted across a wide area -- and what the residents hear is a humming noise. This noise comes out as if mosquitoes are buzzing constantly. 18 Comments

Wind turbines experience problem due to sudden drop in voltage in a portion of the electric grid. Industrial engineer and member of INGEPER Research Team at the Public University of Navarre, Jesús López Taberna is trying to tackle this problem. His team has come out with a rotor model which predicts how the wind power units will behave under these circumstances. Mr López has already patented two techniques and one of which is already with a manufacturer who will utilize it internationally. They have designed generator turbines in such a way that when voltage dips occur, generators continue to function uninterrupted. 3 Comments

Wind energy is 'sustainable energy', just like solar energy and water power. We already know the benefits of wind energy and why we should opt for it. But currently manufacturers are concentrating on the drawbacks of the wind energy and trying to eliminate or minimize those shortcomings. For example turbines are noisy and this sound nuisance can be a problem for the residents of the areas. Wind turbines are unsafe for birds too. Birds can be injured or die if they are caught up in the wings of the turbines. Turbines might annoy you due to horizon pollution i.e. they might meddle with your aesthetic sense. 17 Comments

Right now wind energy is only being harnessed in the windy regions of the earth. Installation of wind energy on individual basis is unpopular because of production and cost inefficiency. Noise pollution and birds getting killed are also not quite attractive side-effects of the windmills. We can’t even imagine of installing windmills on high rise buildings due to their size and cost. 19 Comments

Norwegian company StatoilHydro is working on a 2.3 megawatt floating wind turbine that will be attached to the top of 'Spar-buoy' and moored to the seabed by three anchor points. It is hoped that the 80 meter diameter, 65 meter high Siemens turbine will have lower deep-water installation costs when compared to traditional wind installations. The company plans to have the first prototype ready by fall of 2009, when they will begin feasibility tests to assess how it stands up to high winds. A 3 meter high scale model has already been tested in a wave tank simulator. 3 Comments

According to a recent article from Greentech Media, a Massachusetts aerospace company called FloDesign is working on a wind turbine concept that could potentially be at least twice as efficient as traditional rotor blade turbines, which force air around them instead of through them. It works by channeling wind into a vortex that spins the blades and generates electricity. The company hopes to have a working prototype completed by the end of 2009. Unfortunately their website at flodesignwindturbine.org is not currently functional, but the following video gives a great overview and technical details. 19 Comments