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Wind energy technologies available for licensing from U.S. Department of Energy laboratories and participating research institutions can be found on the DOE''s Office of Energy Efficiency and Renewable Energy''sEnergy Innovation Portal. View all WETO next-generation technologies research and development projects by visiting the WETO Projects Mapand selecting Program Area: Next-Generation Technology Development and Manufacturing.
These are some of the key research project highlights from the program''s next-generation wind technology research.
Learn more about how DOE''s National Renewable Energy Laboratory is testing the causes of drivetrain failures.
Modern wind turbines are increasingly cost-effective and more reliable, and have scaled up in size to multi-megawatt power ratings. Since 1999, the average turbine generating capacity has increased, with turbines installed in 2016 averaging 2.15 MW of capacity. WETO research has helped facilitate this transition, through the development of longer, lighter rotor blades, taller towers, more reliable drivetrains, and performance-optimizing control systems.
During the past two decades, the office has worked with industry to develop a number of prototype technologies, many of which have become commercially viable products. One example is the GE Wind Energy 1.5-megawatt (MW) wind turbine. Since the early 1990s, the program worked with GE and its predecessors to test components such as blades, generators, and control systems on generations of turbine designs that led to GE''s 1.5-MW model, which has constituted approximately half of the nation''s installed commercial wind energy fleetand is a major competitor in global markets.
WETO worked with industry partners to improve the performance and reliability of system components. Knight and Carver''s Wind Blade Division in National City, California, worked with researchers at the Department of Energy''sSandia National Laboratoriesto develop an innovative wind turbine blade that has led to an increase in energy capture by 12% The most distinctive characteristic of theSweep Twist Adaptive Rotor (STAR)blade is a gently curved tip, which, unlike the vast majority of blades in use, is specially designed to take maximum advantage of all wind speeds, including slower speeds.
More recently, to support the development of more reliable gearboxes, the program has worked with several companies to design and test innovative drivetrain concepts. Through the support of $47 million in DOE funding, the nation''s largest and one of the world''s most advanced wind energy testing facilities was opened at Clemson University to help speed the deployment of next- generation energy technology, reduce costsfor manufacturers, and boost global competitiveness for American companies.
Innovation in the design and manufacturing of wind power generation components continues to be critical to achieving our national renewable energy goals.
Highlighted Project: Innovation in the design and manufacturing of wind power generation components continues to be critical to achieving our national goals. As a result of this challenge, the U.S. Department of Energy''s Wind Energy Technologies Office and Advanced Manufacturing Office are partnering with public and private organizations to apply additive manufacturing, commonly known as 3D printing, to the production of wind turbine blade molds. The traditional method of blade design requires the creation of a plug, or a full size representation of the final blade, which is then used to make the mold. Creating the plug is one of the most time-intensive and labor intensive processes in wind blade construction, so 3D printing saves these critical resources.
The National Renewable Energy Laboratory''s National Wind Technology Center (NWTC) has helped pioneer wind turbine component, systems, and modeling methods that have driven industry acceleration. The facility offers multiple test sites, several dynamometers, onsite manufacturing resources, and structural validation capabilities. Research conducted at the NWTC complements DOE''s Atmosphere to Electrons (A2e) initiative, which targets significant reductions in the cost of wind energy through an improved understanding of the complex physics governing wind flow into and through wind farms. Innovative wind energy research at the NWTC includes:
WETO has collaborated with NREL researchers and U.S. suppliers of distributed wind energy technologies to develop next-generation turbines and components, perform testing and certification, and commercialize products to make wind energy cost-competitive with other distributed energy technologies. Through an initiative called the Competitiveness Improvement Project (CIP), WETO funded the installation of three small wind turbines at the Flatirons campus in Colorado that will enable research on turbine design characteristics common to small wind turbines used in distributed applications.
As a member of the International Energy Agency (IEA) Wind Energy Executive Committee, the office supports international wind energy research efforts by participating in 12 areas of wind energy research. The office''s participation in these international research efforts provides U.S. researchers an opportunity to collaborate with international experts in wind energy, exchange recent technical and market information, and gain valuable feedback for the U.S. industry. For more information on IEA activities, visit theInternational Energy Agency website.
Wind energy is a renewable resource that has gained immense popularity in recent years due to its environmental benefits and potential for providing sustainable power. Central to the effectiveness of harnessing wind energy is wind turbine efficiency. Wind turbine efficiency plays a pivotal role in determining the output of these towering giants that dot landscapes around the world. In this blog post, we’ll delve into the fascinating world of wind turbine efficiency, exploring what it is, why it matters, and the factors that influence it.
Wind turbine efficiency is a critical aspect of the renewable energy industry, representing the effectiveness of converting the kinetic energy of the wind into usable electrical power. It’s the measure of how well a wind turbine can capture and convert the energy from the blowing winds into electricity. Simply put, higher efficiency means a wind turbine can generate more electricity from the same amount of wind.
Efficiency in wind turbines matters for several significant reasons. First and foremost, it directly impacts the economic viability of wind energy projects. The more efficient a wind turbine is, the more electricity it can produce, making it a more lucrative investment. Additionally, greater efficiency means a smaller environmental footprint, as fewer wind turbines are needed to generate the same amount of power, leading to reduced land use and visual impact.
A multitude of factors influence wind turbine efficiency, and understanding these elements is crucial for both the design and operation of wind energy systems. Let’s take a closer look at some of the key factors:
One of the primary tools for estimating wind turbine efficiency is the power coefficient formula, represented as:
In conclusion, efficiency is a key factor in the success of wind energy projects or kits. It influences economic viability, environmental impact, and overall performance. By understanding the factors that affect efficiency and the formula used to estimate it, we can continue to harness the power of the wind and propel our world towards a greener, more sustainable future.
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