Articles tagged with Wind Power
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A research team at the University of Pittsburgh is re-engineering the US power grid to deliver electricity from power plants to homes and businesses more efficiently. The goal is to tap into renewable resources like solar and wind power by reducing energy loss and increasing capacity.
A new study by the University of Hawaii at Manoa found that combining on-Oahu wind farms and solar energy could meet over 25% of Oahu's projected electricity demand. The study suggests that implementing large-scale wind and solar projects on Oahu can maintain system reliability while eliminating the need to burn fossil fuels.
A new study published in IBIS reveals that birds see the world differently from humans, with limited spatial detail and enhanced movement detection. This understanding can inform guidelines to reduce bird collisions with obstacles.
A comprehensive review of electrochemical energy storage systems reveals promising technologies like vanadium redox flow, sodium-beta alumina membrane, lithium-ion, and lead-carbon batteries. These systems can store electrical energy in chemicals and release it upon demand, but affordability is key to widespread deployment.
The project develops a new experimental platform for testing wind turbine blades and introduces more realistic loading methods to improve design accuracy. New measuring techniques, including optical digital systems and acoustic emission, are also being developed.
A new study suggests that converting to clean, renewable energy sources is technologically and economically feasible within 20-40 years. The plan involves using wind, water, and solar power to generate electricity, with a focus on combining these sources to overcome variability challenges.
Researchers developed a new formula to determine optimal turbine spacing for large wind farms, suggesting turbines should be spaced 15 rotor diameters apart for more cost-efficient power generation. This improvement could address underperforming projects in the US, Europe, and China.
Researchers at PNNL have developed a system to measure winds high up into the air, providing more accurate wind predictions and improving wind power forecasts. This study has the potential to improve how sites are chosen for wind farms and how those farms are operated.
Researchers at Syracuse University's L.C. Smith College of Engineering and Computer Science have developed a new air-flow technology to increase the efficiency of large wind turbines. The approach uses intelligent systems to control airflow and reduce noise and vibration. Initial results show that flow control can enlarge the operation...
Researchers found that wind turbines increase airflow over nearby crops, keeping them cooler during hot days and warmer at night. This could lead to improved crop yields, reduced moisture levels and increased carbon dioxide absorption.
Charles Meneveau and Johan Meyers develop a model to calculate optimal turbine spacing for large wind farms. They find that energy production depends less on horizontal winds and more on entraining strong winds from higher in the atmosphere, leading to an optimal distance of about 15 rotor diameters.
Researchers are presenting innovative air-flow technology to increase wind turbine efficiency, reducing costs and environmental impact. Tiny grooves on turbine blades also show promise in drag reduction.
A study by Diandong Ren finds that rising global temperatures decrease wind speeds, reducing the power output of wind turbines. This means that more wind turbines are needed to achieve the same amount of energy production, highlighting the need for a switch to renewable energy sources earlier.
A study published in Frontiers in Ecology and the Environment found that raising wind turbine cut-in speeds to 11 mph reduces bat fatalities by 44-93% and annual power loss by less than 1%. This change limits turbines to operating only during higher wind speeds, minimizing bat collisions.
The scarcity of new energy minerals will lead to a significant increase in trade tensions between nations. China's growing reliance on wind power to meet its renewable energy targets is exacerbating the issue, as the country needs rare earth elements like neodymium and selenium for high-strength magnets.
Scientists are tracking golden eagles with satellite transmitters to identify their favourite habitats and monitor the impact of wind farms. The project aims to determine how wind farms affect eagle populations in northern Sweden.
Four young researchers from TUM have developed a sensor technology that can measure mechanical loads on rotor blades, enabling real-time optimization of energy generation. The EXIST research transfer grant will help the team start their own business and expand renewable energy facilities.
The Rice University think tank aims to recycle carbon dioxide into useful products, partnering with energy companies to make carbon a profitable resource. Strategies include repurposing CO2 as a feedstock for chemicals or sequestering it in oil wells.
A University of Maryland study assesses the feasibility of developing and operating wind farms in Maryland's Atlantic coastal waters. The study finds that offshore wind holds potential to help meet State Energy Targets, but addresses serious institutional impediments such as radar interference and transmission facility inadequacies.
Researchers at PNNL have redesigned sodium-nickel chloride batteries to deliver 30% more power at lower temperatures, making them safer and cheaper to manufacture than lithium-ion batteries. The planar design enables compact stacking, improving the battery's performance for large-scale energy storage.
The device uses piezoelectric material and carbon nanotube films to harness light and thermal energy, allowing small electronic devices to operate autonomously. The technology has the potential to impact wireless sensory networks and enable perpetual micro/nano devices.
Researchers have found wind farms' effects on local temperatures and proposed strategies for mediating those effects, increasing the potential to expand wind farms. The study identified two possible mediation strategies: low-turbulence rotors or locational deployment in regions with natural mixing in the atmosphere.
Rensselaer Polytechnic Institute researchers are developing a novel ceramic material for energy storage, aiming to overcome a key bottleneck in large-scale wind and solar power generation. The goal is to create nanoengineered capacitors that can store energy quickly and efficiently.
Hurricane Igor brought heavy rainfall and strong winds to Newfoundland, Canada, causing extensive flooding, power outages, and wind damage. The storm's circulation increased as it moved north, extending tropical-storm force winds up to 520 miles from its center.
Walter Kohn predicts a new era in human history where solar and wind power dominate global energy, driven by growing alternative energy production and declining oil and gas reserves. International cooperation is crucial to addressing the challenges of a rapidly changing energy landscape.
After making landfall in northeastern Mexico, Tropical Storm Alex has weakened to a tropical storm and is moving west at 12 mph. The system is expected to weaken further, with heavy rainfall the main threat, before dissipating in 24-36 hours.
Researchers demonstrate the feasibility of floating wind turbines, supporting a 5-megawatt turbine in deep waters. The WindFloat platform, developed by Principle Power, is stable enough to harness high-speed winds at depths over 50 meters.
The program aims to educate future tribal leaders on energy resource development and environmental evaluations, focusing on wind and solar energy. Students work on research projects analyzing potential impacts and economic opportunities, creating jobs and revenue for tribal communities.
Researcher Gary Seidel aims to develop tiny sensor patches with carbon nanotubes for structural health monitoring of huge wind turbine blades. The patches can detect deformation and send signals to the control center to prevent damage.
Researchers at Caltech have found a way to improve the efficiency of wind farms by using vertical-axis turbines in strategic arrays. By studying the vortices left behind by schools of fish, they discovered that alternating turbine rotations and staggering their placement can increase energy extraction up to 10 times.
Researchers at Worcester Polytechnic Institute are studying the feasibility of placing large wind turbines on deep-ocean platforms. The project aims to assess the potential for offshore wind power generation in the United States, which could fill a significant portion of coastal states' electricity needs.
Researchers at Fraunhofer Institute have developed a smart charging station that enables electric vehicles to recharge during periods of low energy demand and high renewable energy production. This system aims to reduce peak loads and maximize the contribution of solar and wind power.
Researchers from the University of Delaware and Stony Brook University proposed a new grid design that can minimize the impacts of local weather on power fluctuations, making offshore wind power more consistent. The study found that connecting wind power generators with a shared power line can smooth out power output, allowing sufficie...
A new wind power grid could compensate for natural fluctuations in wind direction and strength, providing a smoother power supply. Researchers linked offshore wind generators with a shared power line to achieve this goal.
A radical change in coordinated network planning and operation is needed for a reliable European grid, highlighting the importance of integrated strategic planning and cross-border coordination. The integration of renewable power sources poses significant challenges, requiring smarter grids to accommodate variable generation.
Iowa State University engineer Steve Martin is working to develop better batteries for renewable energy alternatives by studying electrochemical reactions and new materials. His research aims to improve the efficiency and safety of batteries, which are crucial for widespread adoption of wind power and other forms of clean energy.
A new technology could increase wind turbine efficiency by up to 30-40% at lower wind speeds, opening up new geographic areas for wind power. The circulation control aerodynamic technique will be applied to wind turbine blades, allowing for simpler designs and increased power production.
A new study suggests that policymakers should focus on achieving mid-century emission targets to preserve long-term options for avoiding dangerous levels of warming. The research identifies critical mid-century thresholds that would make particular goals unachievable with current energy technologies.
Clemson University has received a $45 million grant from the US Department of Energy, combined with $53 million in matching funds, to build a large-scale wind turbine drive train testing facility. The testing facility will create at least 134 jobs and generate 568 indirect jobs, supporting South Carolina's emergence as an industrial hu...
Researchers apply aerospace principles to create a durable and efficient wave-energy system that can be placed anywhere in the ocean. The system effectively cancels incoming waves, capturing their energy while flattening them out.
The US Department of Energy has awarded $151 million in funding to 37 ambitious energy research projects. These projects aim to develop transformative innovations in energy storage, biofuels, carbon capture, renewable power, building efficiency, vehicles, and other energy technology areas.
Scott Anderson of Palm Beach, Fla., and his team won the 2009 ConocoPhillips Energy Prize with their ECO-Auger, a hydrokinetic machine harnessing tidal currents for renewable electric energy. The prize recognizes innovative ideas to create a more secure energy future.
Stanford University researchers propose that transitioning to renewable energy could reduce global power demand by 30%, making it cheaper than fossil fuels or nuclear energy. The study finds that wind, water, and solar energy can meet the world's power demands with minimal land area required.
Researchers found that slowing turbine blades in low-wind periods significantly reduces bat mortality, as bats are more likely to fly when winds are relatively low. The study demonstrates a successful way to mitigate bat deaths without significantly reducing energy generated from wind farms.
A study by Harvard University researchers estimates that China's electricity demands projected for 2030 can be met by wind power. The switch from coal to greener energy would reduce carbon emissions, but requires an investment of around $900 billion dollars.
The Iowa Power Fund supports a three-year project to develop new, low-cost manufacturing systems that could improve wind energy production by up to 35 percent. The laboratory will focus on automation, quality control, and nondestructive inspection of turbine blades.
Wind energy could account for 30% of Spain's overall energy production by 2030, according to a study. The proposal also suggests a mix of solar energy and gas turbines to achieve this goal, while reducing carbon emissions. Additionally, the sector has generated 226% more jobs in the European Union since 2003.
A new study reveals that the US is home to the fastest-growing wind power market worldwide, with a 60% increase in capacity additions in 2008. The report highlights the growth of wind projects across various states, including Texas, which leads the nation with over 7,000 MW of new wind capacity.
Recent studies suggest tidal stream devices could supply up to 5% of the UK's electricity needs, offering a solution with minimal environmental impacts. Collaborative projects are developing more fatigue-resistant materials and improved design techniques for wind turbine blades and solar energy converters.
A new study in the International Journal of Exergy provides a formula to calculate wind turbine performance and optimize energy production. The formula offers a theoretical boost of 20% efficiency at varying wind speeds, reducing wasted energy by 80%.
A new study identifies New York and eastern U.S. cities as prime locations for exploiting high-altitude winds, which contain enough energy to meet world demand 100 times over. The regions match population centers and have high wind power densities, but fluctuating wind strength poses a challenge for large-scale exploitation.
Engineers at Purdue University and Sandia National Laboratories have developed a technique to monitor forces exerted on wind turbine blades, enabling real-time adjustments for optimal efficiency. The system aims to reduce catastrophic damage from high winds and improve overall wind turbine reliability.
A new collection of papers explores how solar energy, winds, asteroid impacts, and changing magnetic fields shaped early Mars' environment. These findings suggest that the planet may have supported life during its history.
The new California Solar Energy Collaborative aims to establish consensus among key stakeholders, develop efficient solar technologies, and create an ambitious energy policy for the state. UC San Diego and UC Davis will utilize the grant to collect existing research, facilitate gap areas, and track evolving solar technology development.
Infrared thermography is a non-destructive testing method that allows researchers to peer several centimeters into the material of wind turbine rotor blades. This technology enables the detection of minor irregularities and delaminated areas that can cause mechanical stresses and lead to premature failure.
Researchers found that only four rest areas and six weigh stations showed promise for wind power generation in Illinois. The study determined grid parity was not achievable due to high electricity costs, but rebates and subsidies made some sites viable.
The article discusses a new book by Joseph Murphy that weaves together Gaelic history, culture, and language with sustainable development and walking. The book tells the story of a 1500 km walk along the Atlantic coast from Ireland to Scotland, combining local experiences with broader themes.
The NCAR forecast system will provide highly detailed, localized weather forecasts to enable utilities to make critical decisions about powering down traditional plants when sufficient winds are predicted. The system will help increase reliance on wind energy while meeting customer needs.
Researchers develop a novel control method to mitigate wind speed variations by leveraging rotor inertia as energy storage. This approach reduces the need for external energy storage facilities, improving overall wind farm efficiency.
MIT researchers, led by Chiang Mei, have developed a numerical simulation model that predicts wave forces on devices and motion of the device. The research aims to optimize energy capture and provide data for efficient conversion to electrical energy. The pilot-scale device will be integrated into a new breakwater in Portugal.