Articles tagged with Wind Power
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A team of Cornell University researchers will investigate the interrelationships between food, energy and water through a three-year, $2.4 million grant. The study aims to understand how ag-to-energy land-use conversions affect agricultural production, water quality and quantity, as well as electrical grid operational efficiency.
A new concept for an aluminum battery has twice the energy density of previous versions and is made of abundant materials, potentially leading to reduced production costs and environmental impact. The idea could be used in large-scale applications such as solar and wind energy storage.
A team of Penn State researchers developed a model that can accurately predict wind farm energy production and location. The model provides a probability curve for wind production, allowing companies to make informed decisions about investing in wind farms.
The report examines wind energy impacts on sensitive wildlife, citing the need to balance wildlife conservation with rapid greenhouse gas emissions reductions. It highlights areas where further research is needed to minimize wind turbine effects on birds and bats.
The hoary bat population is declining at a rate that suggests the species is in jeopardy in the Pacific Northwest. The study found evidence of decline for the hoary bat, but not for the little brown bat, which has been heavily impacted by white-nose syndrome.
Researchers at Arizona State University have developed new technologies that combine light-gathering semiconductors and catalytic materials to produce clean fuel. The technologies use solar energy to drive chemical reactions capable of producing fuels, which store the sun's energy in chemical bonds.
A UH engineer offers two winning proposals to the US Department of Energy to enhance the nation's electric grid, focusing on accommodating variable renewable energy generation. His projects include reconfiguring transmission networks and upgrading energy management systems with microgrids.
New analysis reveals Europe's onshore wind farms could supply enough energy for the world until 2050, producing 497 EJ of power. The study identifies Turkey, Russia, and Norway as having the greatest potential for future wind power density.
Advances in wind technology have led to significant growth, with larger turbines now capable of generating up to 5 megawatts. Improved efficiency and cost reductions are expected, but maintaining these turbines will require more economical methods.
MIT researchers quantify cost targets for energy storage to enable solar and wind power with storage to reach competitiveness with other on-demand energy sources. The study finds that energy storage costs need to fall below $20/kWh to achieve cost-competitive baseload power over a twenty-year period.
Airships could increase the feasibility of a 100% sustainable world by reducing CO2 emissions and fuel consumption. The study proposes using airships to transport cargo and hydrogen, leveraging the jet stream for energy and reducing the need for liquefaction.
Researchers at the University of Colorado Boulder have developed a low-cost, high-performance battery chemistry that achieves exceptional voltage and high efficiencies. The new innovation uses chromium and organic binding agents to stabilize a potent electrolyte, offering promise for cost-effective manufacturing.
The Supergen ORE Hub has awarded £1 million to UK universities to support ambitious research projects in offshore renewable energy. The funding aims to tackle key engineering challenges and explore the transfer of research findings between sectors.
A new study finds that fossil fuels' ratios of extracted energy to produced energy are lower than previously thought, especially at the finished fuel stage. The study warns that declining EROI may lead to a 'net energy cliff', where available energy declines rapidly.
A study by Swiss Federal Laboratories for Materials Science and Technology (EMPA) suggests that Switzerland can transition to a low-CO2 energy system by reducing building heating requirements by 42%, electrifying 3/4 of remaining heating needs, and increasing electrification of private car journeys to 20%.
A new Stanford study shows that wake-steering can improve the quantity and quality of power from wind farms, increasing overall power output by up to 47% in low wind speeds. Wake steering also reduces the variability of power production, making it easier for grid operators to manage supply and demand.
Researchers developed a wake steering technique that increases total power production while reducing variability in wind speeds, leading to improved efficiency for near-average wind conditions. The study used field experiments on an array of 6 turbines over 10 days at a wind farm in Alberta, Canada.
Researchers at Aarhus University have developed an historically accurate solar energy model with global, regional and local level performance data made available via open license. The model will help in optimizing future sustainable energy systems by analyzing photovoltaic installations.
The €2m High Performance Computing (HPC) project aims to optimise the sustainable exploitation of wind power. Annual energy production by wind turbines reached around 10.4 per cent in the EU, with Brazil experiencing over 10 per cent annual growth.
Artificial floating islands harness solar energy to extract CO2 from seawater and produce hydrogen, which is then converted into methanol fuel. The study suggests a potential method for producing synthetic fuels with reduced greenhouse gas emissions.
A new Stanford study finds that companies claiming 100% renewable energy don't necessarily reduce carbon emissions by 100%. Hourly accounting methods show wind power produces more emissions reductions than solar power in California. The study highlights the need for hourly data to measure environmental benefits accurately.
Using light to optimize osmosis for electricity generation at estuaries has shown promise. The system produces twice as much power in the dark as it does with light, offering a potential solution to weather-dependent renewable energy sources.
Researchers tested natural and synthetic acoustic stimuli to determine their effectiveness in deterring bald eagles from flying into wind turbines. The study found that eagles were more responsive to natural calls than synthetic sounds, particularly a 'crow mobbing' signal.
Researchers from Texas A&M University have developed a biomimetic whistle that uses bat's natural echolocation to deter bats from flying into wind turbine blades. The device, mounted on turbine blades, produces an ultrasonic sound detectable by bats at distances of up to 100 meters.
Researchers found a significant increase in tourism on Block Island after construction of the offshore wind farm, with occupancy rates rising by 19% and monthly revenue increasing by $3490. The study suggests that curiosity about renewable energy drove the interest, but may not persist long-term.
Researchers have identified areas with persistent seismic signals caused by industrial processes using a dense sensor network spanning the US. The map, developed by Los Alamos National Laboratory, pinpoints prominent sources of industrial activity, including wind farms and large water pumping stations.
New research from Lancaster University and international partners suggests that investing in solar panels, wind turbines, and energy storage is a better strategy for tackling climate change than developing carbon capture technologies. The study finds that renewable energy systems with storage offer comparable or even superior net energ...
A new study challenges the US Department of Energy's plan to expand offshore wind power, citing supply chain issues with rare earth metals like neodymium. The researchers found that creating a domestic program could raise questions about natural resource consumption and recyclability.
Developed by Zhang et al., the CS-WD-WNN model outperforms other models in wind speed prediction with high accuracy, providing essential data for wind farm operations.
Scientists found that Europe's renewable-based electricity system will perform similarly in future climates due to its ability to withstand extreme weather events. The grid may require tweaks for efficient operation, but its overall functionality is expected to remain intact.
The development of a new generation of catalysts is crucial to meet the world's demand for clean energy. Researchers at the University of Copenhagen have made a breakthrough in finding better, cheaper catalysts using high-entropy alloys, which can aid the conversion of chemical substances in chemical reactions.
A study published in the Journal of Chemical Thermodynamics found that organic acids produced by bacteria can extract six rare earth elements from synthetic phosphogypsum. This method could provide an environmentally friendly alternative to conventional methods, benefiting the US clean energy and electronics industries.
Hydrogen production based on wind power can already be commercially viable today. Economists at TUM, University of Mannheim and Stanford University have described an economically viable path to renewables-based hydrogen production. The study shows that flexible production facilities can make this technology a key component in the trans...
A new software tool has been developed to analyze Airborne Wind Energy Systems (AWES) that utilize lightweight kites or large drones. This innovation offers a cost-effective way to harness wind energy at high altitudes, where traditional wind turbines are not feasible.
Scientists at the University of Manchester have created flags that can harness both wind and solar energy to generate electricity. The innovative flags use piezoelectric strips and flexible photovoltaic cells to produce power, making them suitable for powering remote sensors and small electronics.
Fish and birds are able to move in groups without separating or colliding due to the interaction of followers with their leader's wake. This phenomenon allows slower followers to keep up with faster-flapping leaders by surfing on their wake, enabling efficient energy harvesting from natural resources.
Researchers propose using compressed air storage in porous rock formations to meet UK's electricity needs during winter months, providing a viable option for steady and reliable renewable energy supplies. The approach aims to store enough compressed air to cover the UK's typical electricity demand for January and February.
Researchers at FAU developed a simple yet accurate method to find interface defects in silicon carbide transistors. This allows for improved and shorter innovation cycles in developing more energy-saving power electronics.
A study published in the Journal of Great Lakes Research found that water-based outdoor recreationists on Lake Erie overwhelmingly support offshore wind energy development. The researchers discovered a strong correlation between OWD support and positive perceptions of tourism opportunities and enhanced recreation experiences.
Researchers discovered a previously unexplored consequence of global wind energy proliferation: wake effects from upwind facilities that can reduce downwind neighbors' energy production. The study shows that these effects are measurable and predictable, with the largest impact occurring when winds are in a specific direction at night.
A collaborative research team examined predictive models used to forecast wind farm effects, revealing the importance of model resolution in simulating weather patterns. Higher vertical and horizontal resolutions improved simulations, but more study is needed to optimize wind energy deployment.
A new study found that warming waters in the Indian Ocean are causing a decline in wind power potential in India, with western regions experiencing the steepest decrease. The research suggests that investing in wind turbines in areas with stronger monsoon winds can help minimize the impact of climate change.
A new study reveals a significant decline in wind energy resources over the Northern Hemisphere, with 30-80% of stations losing wind power potential since 1979. Climate models are found to be inadequate in simulating long-term wind energy changes, underscoring the need for careful consideration when using GCM-based projections.
A new study highlights the previously underexplored consequence of wake effects from upwind wind farms on downwind neighbors' energy production. The research demonstrates that these effects are measurable and predictable yet remain largely unaccounted for in current U.S. property law.
Researchers have developed a new approach to design more efficient wind farms by incorporating factors such as wind speed, turbine spacing, and land size. The algorithm uses biogeographical-based optimization to minimize computational cost while maximizing efficiency.
A recent study published in Environmental Research Letters found that large-scale offshore wind farms can decrease hurricane precipitation onshore locations, while increasing it in offshore areas. The research used Hurricane Harvey as an example, showing a 30% reduction in precipitation inland due to the presence of wind farms.
Researchers from the University of Edinburgh have discovered a novel form of air bubble that enhances the drag on dandelion seeds, allowing them to travel great distances without power consumption. This breakthrough could inspire the development of small-scale drones for remote sensing or air pollution monitoring.
Scientists develop visual pattern that triggers long-term avoidance of high-risk areas by raptors, improving collision detection and reducing plane and wind turbine collisions. The 'looming' effect created by concentric black circles on a white background is effective in repelling birds from specific areas.
Researchers at UCSB and Cambridge developed models to optimize wind farm productivity by improving airflow mixing and using vertical-axis turbines, potentially leading to orders-of-magnitude improvements in energy production. This could enable more efficient use of land and reduce costs.
Researchers found that large-scale wind farms would require five to 20 times more land area than previously estimated, and their operation would warm average surface temperatures by 0.24 degrees Celsius in the continental US. The study suggests that localized warming occurs even with smaller projections of wind power generation.
A study published in Joule found that large-scale US wind power generation would warm the Continental United States by 0.24 degrees Celsius due to heat redistribution in the atmosphere. This warming effect could take roughly a century to offset with wind-related reductions in greenhouse gas concentrations.
A new study published in Science shows that large-scale solar and wind farms in the Sahara could more than double precipitation, increase vegetation cover by up to 20%, and lead to substantial improvements in rainfed agriculture. The findings have major implications for addressing sustainability challenges in the Energy-Water-Food nexus.
A new climate-modeling study finds that large wind and solar farms in the Sahara Desert and neighboring Sahel would increase local temperature, precipitation and vegetation. The effects are likely to benefit the region, with increased rainfall leading to a positive feedback loop of vegetation growth.
A new study reveals that wind and solar farms increase local precipitation and plant growth in the Sahara desert. The results suggest a positive impact on regional climate processes, with potential to produce minimal climate change at continental scales.
Researchers developed a three-dimensional model to estimate usable wind energy and found that repowering old plants with larger ones increases yields by several hundred percent. The study suggests that this approach can significantly reduce the cost of generating electricity comparable to brown coal.
MIT researchers have developed a passive, solar-powered system to prevent ice buildup on surfaces, using a three-layered material that absorbs sunlight and spreads heat to melt boundary layers of ice. The system has been tested extensively and shows great promise for commercial use in various applications.
According to the U.S. Department of Energy's annual report, wind energy prices in the United States are at an all-time low due to technology advancements and cost reductions. Bigger turbines with increased rotor diameters have improved wind project capacity factors, while lower turbine pricing has pushed down installed project costs.
Researchers have developed a new organic molecule that can store and release energy tens of thousands of times over multi-year periods. The 'Methuselah' quinone molecule avoids degradation problems of previous molecules, providing long-term stability and high energy storage.
A new type of flow battery developed by Stanford researchers uses a liquid metal at room temperature to store renewable energy from wind or solar sources. The technology has the potential to deliver energy quickly and affordably, with possibilities for further improvement in terms of cost, efficiency, size, and safety.
A recent study suggests that Concentrated Solar Power (CSP) can be the key to China meeting its climate commitments. CSP can store energy relatively inexpensively and dispatch it day or night, making it a more cost-effective option than traditional renewable energy sources like wind power and PV. The study found that substituting CSP f...