How To Build A Wind Turbine

This ‘How-To’ was originally published on CleanTechnica There is something remarkable in watching a wind turbine capturing the energy of the wind and converting it into clean electricity. For those unsure of a wind turbines workings, the Department of Energy provides this overview: “Wind turbines operate on a simple principle. The energy in the wind turns two or three propeller-like blades around a rotor. The rotor is connected to the main shaft, which spins a generator to create electricity.” Windmills…

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New Rooftop Wind Turbine Technology

Wind power is a major source of renewable electric power in many places around the world. We usually associate wind power with tall wind turbines located in remote locations or far out to sea. In July, Denmark produced 140% of its domestic energy from just such turbines, according to The Guardian. Yes, that record was established over a rather windy 24-hour period, but it is remarkable all the same. Until now, small wind turbines that are sized for residential and…

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Eiffel Tower

Eiffel Tower Goes Green

An ambitious remodel project at the Eiffel Tower is making its operations greener. The first floor of the landmark building was recently refurbished for a better visitor experience and to improve the environmental impact of the historic building. First floor glazing was changed to provide a 25% reduction in solar heat gain during the summer months. This will significantly reduce the need for air conditioning, saving money and energy. Almost all of the lighting in the first floor was changed…

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Wind Tree turbine

Wind Tree Provides Silent Wind Power Beautifully

A new French start-up, NewWind, is making wind power beautiful! Their new Wind Tree offers almost a hundred mini-windmills on an apparatus designed to look like a tree. Due to the light construction of the “leaves,” the Wind Tree generates power at wind speeds as low as 4.4 miles per hour! This translates into sustained operation times (an average of 320 days a year) that are almost double those of standard windmills that need higher wind speeds in order to…

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Wind Turbine Business Analysis

For those curious about the payback on wind turbines, this press release from AAAS is worth reading. Wind turbine payback US researchers have carried out an environmental lifecycle assessment of 2-megawatt wind turbines mooted for a large wind farm in the US Pacific Northwest. Writing in the International Journal of Sustainable Manufacturing, they conclude that in terms of cumulative energy payback, or the time to produce the amount of energy required of production and installation, a wind turbine with a working…

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Liam F1 Urban Wind Turbine

Urban Wind Turbine Provides Quiet Power

The newly introduced Liam F1 Urban Wind Turbine developed by The Archimedes will allow those in cities to quietly make their own power as easily as their country cousins. Besides it’s almost silent operation, the windmill boasts 80% efficiency, much higher than the 25-50% of other turbines. The unit is 5 feet wide, so a bit of space is still necessary, but it makes up for that in efficiency. According to a press release from The Archimedes: “The Liam F1…

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Strength and Design in Concrete Forms

There is something amazingly raw and beautiful in cast concrete forms and buildings. These forms can become any shape imaginable and all that is required is the form to hold the concrete as it dries. Panels of remarkable sizes can be placed on site in construction zones, allowing buildings to rise in record breaking time spans. Concrete’s developments have continued throughout the years with improvements in its strength and constructability techniques. New developments include high-strength concrete that can be reinforced concrete…

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Bacardi Enhances The Efficiency Of Its Rum Facility

Bacardi, a wine company based in Puerto Rico, has been building its reputation for sustainability since 2006. Last year, it announced that it significantly reduced its water and energy usage. It is now taking the next step towards sustainability with the installation of solar skylights, which are intelligently designed ‘windows’ that allow plenty of sunlight into the rum warehouse, helping to keep it warm and nicely lit during winter, reducing heating demand, and the need for electric lighting. In addition to…

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GE Introduces 2.85-103 Wind Turbine for Japan

Engineered for Higher Turbulence Conditions Experienced in Typhoon Class Wind Speeds and to Fit the Unique Japanese Landscape GE has announced its 2.85-103 wind turbine for Japan with 2.85-megawatt rated power and 103-meter rotor diameter, generating high power output for constrained areas. The wind turbine is specifically engineered for Japanese environmental conditions and is able to withstand higher turbulence, typhoon class wind speeds and lightning beyond the current IEC standard. “We applaud Japan’s commitment to wind energy and are pleased to introduce…

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NREL study: Active power control of wind turbines can improve power grid reliability

The Energy Department’s National Renewable Energy Laboratory (NREL), along with partners from the Electric Power Research Institute and the University of Colorado have completed a comprehensive study to understand how wind power technology can assist the power grid by controlling the active power output being placed onto the system. The rest of the power system’s resources have traditionally been adjusted around wind to support a reliable and efficient system. The research that led to this report challenges that concept. The…

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Kinangop Wind Farm in Kenya to be Powered by 38 GE Wind Turbines

One of the Largest Wind Power Generation Projects to be Built in Sub-Saharan Africa The Kinangop Wind Farm in Kenya, developed by Aeolus Kenya and constructed by Iberdrola Engineering, will be powered by 38 GE 1.6-megawatt (MW) wind turbines. The Kinangop facility will be one of the largest wind power generation projects to be built to date in sub-Saharan Africa. Following its commissioning, the 61-MW wind farm will generate enough renewable electricity to power the equivalent of 150,000 homes in the…

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GE Awarded 545 Megawatts of Commitments to Power 26 Brazil Wind Farms

GE won 545 megawatts (MW) of orders for wind turbines in Brazil’s A-3 auction, which was held on November 18. The total amount of energy auctioned was 867 MW and GE secured 63 percent of the auction capacity. GE will provide 1.7-100 and 1.85-82.5 turbines for wind farms developed by Casa dos Ventos, Eletrosul, Contour Global, CEEE, PEC, Rio Energy and Chesf in the Brazilian states of Rio Grande do Sul, Bahia and Piauí. GE also will service the wind turbines for 10 years as part…

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RENEWABLE ENERGY PROVIDES 99% OF ALL NEW U.S. ELECTRICAL GENERATING CAPACITY IN OCTOBER 2013

YEAR-TO-DATE, RENEWABLES OUTPACE COAL, OIL, AND NUCLEAR POWER COMBINED According to the latest “Energy Infrastructure Update” report from the Federal Energy Regulatory Commission’s Office of Energy Projects, solar, biomass, and wind “units” provided 694 MW of new electrical generating capacity last month or 99.3% of all new generation placed in-service (the balance of 5 MW was provided by oil.) Twelve new solar units accounted for 504 MW or 72.1% of all new electrical generating capacity in October 2013 followed by four…

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High bat mortality from wind turbines

Renewable energy solutions from wind turbines provide promise worldwide that longterm sustainable energy solutions will form a foundation for future energy capture and distribution strategies. Such solutions do no not always come about without paying a significant price, however. This report on wind turbines and massive bat deaths is disturbing. Clean energy cure needs to be better than the problem they are mitigating — without bringing an entirely new set of problems that cannot be easily repaired. “More than 600,000…

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NREL Calculates Emissions and Costs of Power Plant Cycling for Increased Renewable Energy

Economic research on renewable energies like wind and solar will provide an advanced foundation for the development and expansion of viable sustainable energy programs. Read the following press release from NREL. New research from the Energy Department’s National Renewable Energy Laboratory (NREL) quantifies the potential impacts of increasing wind and solar power generation on the operators of fossil-fueled power plants in the West. To accommodate higher amounts of wind and solar power on the electric grid, utilities must ramp down…

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Wind Turbines Don’t Negatively Affect Property Values In The US (New Report)

The presence of wind turbines and wind farms near residential properties has no effect on the value of said properties, according to new research from the Lawrence Berkeley National Laboratory (Berkeley Lab). The findings are the result of an analysis of the sales of more than 50,000 homes — located near 67 different wind energy facilities, spread throughout nine different US states. “This is the second of two major studies we have conducted on this topic [the first was published…

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