Articles tagged with Wind Power
Researchers found that optimally designed vertical axis wind turbines can financially compete with fossil-fuel based power plants in urban and suburban areas. The study suggests the potential to spearhead net-zero energy buildings or cities through efficient energy harvesting.
A new study reveals that Europe's wind energy capacity is concentrated in the North Sea region, leading to extreme fluctuations. Cooperating countries can balance capacity across the continent to minimize these fluctuations. However, expanding solar energy capacity tenfold would be required to compensate for longer-term fluctuations.
Researchers studied owls' wings to understand how their unique features can reduce noise in machines like wind turbines and aircraft. Leading-edge serrations can control airflow, improving aerodynamic force and sound production, but a trade-off exists between performance and noise suppression.
Experts conclude that a near-zero-emissions energy system will require a diverse portfolio of energy technologies, including bioenergy, nuclear energy, and carbon capture technology. The study corrects previous research suggesting the US can be powered solely by solar, wind, and hydroelectric energy.
The FAU-based project 'E|Connect' aims to improve the performance and reliability of on-board networks in mechatronic systems. Researchers will investigate ways to optimize these networks for higher speeds, larger numbers of nodes, and better power delivery.
Researchers propose a day-ahead economic dispatch model to optimize wind power generation, considering both planned and real-time energy use. The framework successfully predicts optimal models for energy commitment and has been tested in real-world simulations.
Researchers developed a parametric genetic algorithm to assess complementary options for large-scale wind-solar coupling in the electrical grid. The approach successfully optimized power generation and dispatch decisions, showing promise for managing intermittent renewable energy sources.
A new study in Geophysical Research Letters reveals that offshore wind turbines built according to current standards may not withstand powerful Category 5 hurricane gusts. In contrast, Thwaites Glacier's melt rate will continue but not as rapidly as previously estimated.
Researchers at the University of Colorado Boulder found that offshore wind turbines may not withstand Category 5 hurricane gusts, which could pose a risk in hurricane-prone areas. The study highlights the limitations of current turbine design and suggests that manufacturers and engineers need to improve hurricane-resilient turbines.
Researchers propose pairing remote wind farms with conventional units to reduce power storage needs, improving reliability. The approach uses an algorithm to estimate future wind states and provides limitations for extreme wind states.
Researchers found that a visual illusion occurs when daylight hits the object from above, creating shading that alters its shape to the human eye, making it appear out-of-place. Computer-generated images demonstrated this effect, revealing why some people perceive images of objects like wind turbine blades as 'fakes',
A Pew Research Center survey finds that Americans lean towards government regulations to encourage renewable energy consumption. While there is a close divide on cutting back environmental regulations, most believe protecting the environment from energy development should be a top priority. The public also supports increasing reliance ...
Researchers used underwater microphones to detect and map harbor porpoise habits in the Maryland Wind Energy Area. They found that porpoises occur significantly more frequently during January to May and forage for food in the evenings.
NCAR will develop a three-year project to provide detailed forecasts of wind and solar irradiance at Kuwait's 2-gigawatt Shagaya renewable energy plant. This technology will help Kuwait reach its goal of generating 15% of its energy from renewable sources by 2030.
A new system aims to protect bald eagles from wind turbine collisions by detecting approaching birds and triggering deterrents. The technology, developed at Oregon State University, uses a camera-mounted system to identify eagles in flight and deploy colorful human-like figures to scare them away.
Researchers developed a novel approach to lithium-ion capacitors using internal short-circuiting, achieving high energy storage capacity. The pre-lithiated multiwalled carbon nanotube anode showed improved performance, enabling the devices to store approximately 5 times more energy than conventional EDLCs.
Researchers found that polar bears use crosswind movement to detect seals, with best conditions at night during winter. Climate change projections suggest increased winds may hinder this ability, impacting hunting success.
Researchers developed a model to predict the limits of friction behavior in metals based on materials properties. The discovery has significant implications for industries such as wind turbines and electric vehicles, enabling engineers to design and optimize materials for better performance.
The study presents a detailed methodology for calculating renewable energy potentials using global or regional databases. It forecasts significant fossil fuel savings and greenhouse gas emissions reductions, especially in Russia's Far East and coastal regions.
The study suggests that choosing wind sites to match electricity demand reduces system costs and enhances equitable distribution of renewable energy. Countries can save hundreds of millions to billions of dollars per year by pursuing low-cost, accessible, and environmentally friendly solar and wind farms.
Researchers at Aalto University have developed a manufacturing method for electrocatalysts using one hundredth of the usual amount of platinum, reducing costs and increasing functionality. The new material has been proven to be stable and usable in laboratory conditions.
Researchers at Jülich's Peter Grünberg Institute have created a new method for high-resolution electron energy loss spectroscopy (HREELS) that allows for fast and efficient measurements. This innovation enables scientists to investigate unstable or sensitive samples, paving the way for breakthroughs in materials analysis.
Researchers at Lappeenranta University of Technology found that a fully renewable electricity system in Iran could reduce costs by 50-60% compared to other emission-free energy options. The transition requires significant investments in solar, wind, and hydropower but can drive economic growth and reduce emissions.
Researchers at CCNY Energy Institute developed a sustainable, high-energy-density battery using manganese dioxide and copper. The unique material allows for both high cycle life and high areal capacity, making it suitable for practical applications.
Researchers at Stanford University developed a lab model of vertical axis wind turbine (VAWT) arrangements that can help design and implementation in the future. The study found that closely spaced VAWTs can generate up to 10 times more power per unit of land area than widely spaced HAWTs.
Researchers from University of Delaware and Princeton University show that US grid can manage large amounts of offshore wind power, reducing pollution and electricity costs. The study found that the PJM grid can handle over 35 gigawatts of offshore wind, powering approximately 10 million homes.
Researchers improve redox flow batteries by designing charge-storing molecules that are up to 1,000 times more stable than current compounds. This breakthrough aims to increase the capacity and efficiency of large batteries for grid storage, enabling full utilization of renewable energy sources.
The new Cheyenne supercomputer provides a major tool for advancing understanding of the atmospheric and related Earth system sciences. Scientists will use it to study phenomena such as wildfires and seismic activity, leading to better protecting society from natural disasters.
The Nordic countries' energy transition, driven by cities and municipalities, has achieved significant success with 83% of electricity generation coming from low-carbon sources. The study highlights the importance of trade and interconnection with Europe to reach energy targets, as well as the need for coordinated grid development and ...
A new model predicts wind frequency and potential contributions to traditional energy sources, enabling decentralized load frequency control. The algorithm requires less computational time than traditional methods, but may require more computation to maintain system stability.
Researchers at MIT found no evidence of dematerialization in 56 materials and goods, despite technological improvements. Despite increased efficiency, consumer demand for products continues to outpace material usage.
Researchers found that wind power fluctuations follow the same pattern as wind speed fluctuations due to shared eddies, affecting grid stability. This understanding has immediate implications for economic and political decision making in managing renewable energy.
A Rutgers University research project aims to integrate critical infrastructures into a unified smart city, making them resilient and sustainable. The goal is to encourage behavioral changes through psychological influence, reducing waste and mitigating environmental impacts.
Scientists have made significant advancements in understanding the ionosphere, a region of Earth's atmosphere that reacts to changes from both space above and Earth below. Research reveals that the ionosphere can experience 'overcooling', causing rapid energy loss and collapse, which can disrupt satellite orbits.
A study by the University of Edinburgh found that wind farms prevented 36 million tonnes of greenhouse gas emissions from coal and gas sources in Great Britain. The research suggests that a greater investment in wind energy could help meet Scottish and UK government targets for carbon emissions reduction.
Researchers at Technical University of Munich are collecting infrastructure data via an open source platform using crowdsourcing. The OpenGridMap app allows volunteers to map wind turbines, solar power plants, transformer sub-stations and power lines, generating a denser network of verified grids.
Case Western Reserve University, NASA Glenn Research Center, and the University of Toledo are collaborating on a $1 million project to integrate distributed energy sources with buildings and grid. The Northern Ohio Building-to-Grid Integration Demonstration will test strategies for optimizing energy consumption across various conditions.
Researchers at University at Buffalo identify fluorescent dye BODIPY as ideal material for storing energy in rechargeable, liquid-based batteries. The dye's unique chemical properties facilitate electron transfer and storage, enabling batteries to operate efficiently and with longevity.
Researchers at Lehigh University developed a 3D-printed wing attachment inspired by owl feathers, reducing wind turbine noise by 10 decibels without impacting aerodynamics. The design can also reduce roughness and trailing-edge noise, with implications for improving man-made aerodynamic designs.
New observations from NASA's THEMIS mission reveal electrons can be accelerated to extremely high speeds in a region farther from Earth than previously thought possible. This discovery opens up new questions about the mechanisms that accelerate these particles, which can cause equipment malfunctions and affect space travelers.
The Lappeenranta University of Technology's new model demonstrates a functioning 100% renewable energy system for all regions, fulfilling the Paris agreement targets. The model suggests an estimated cost of 55-70 euros per megawatt-hour for the electricity sector.
Researchers found that costly ecological impact assessments failed to protect bats from fatal collisions with spinning blades. The study highlights the challenge of establishing with certainty the effect of major developments before they occur.
A Griffith University-led project aims to improve community engagement for renewable energy transitions in Korea. The research focuses on addressing local factors that complicate development and providing policy lessons for wind energy planning.
Researchers developed a new method to model microgrids using Hybrid Petri Net (HPN), allowing for efficient operation under various conditions. This analysis helps engineers estimate time and cost required for grid component switching, enabling improved microgrid design.
Researchers at Oregon State University have found that organic compounds traditionally known as pollutants can function as a low-cost, long-lasting cathode in dual-ion batteries. The discovery has promising characteristics for storing electricity from wind and solar energy, addressing a key constraint to wider use of clean energy systems.
Researchers found that golden eagles killed at a wind farm in California came from up to hundreds of miles away, posing a threat to global populations. The study's findings suggest that environmental assessments should consider bird populations across entire regions, not just local areas.
Scientists at NREL are leading an effort to model complex wind flow through large wind plants as part of the Exascale Computing Project. The project aims to advance our fundamental understanding of whole wind plants and reduce the cost of electricity derived from wind energy.
Researchers have discovered a potential approach to storing excess renewable energy by mixing food waste-derived sugar alcohols with carbon nanotubes. The study found that heat transfer within the mixture improved with higher density combinations and decreased with smaller nanotube diameters.
Scientists at UFZ have created a detailed energy-transition map of Germany, highlighting regional differences in renewable energy production. The map shows that coastal areas are leaders in wind and solar farms, while cities like Berlin struggle to keep up with their consumption.
Researchers created Renewables.ninja to estimate renewable energy output using 30 years of weather data. The tool predicts wind speed and sunlight at any location, allowing for more accurate estimates of energy generation. It has already been used to analyze Europe-wide solar and wind output and is being used by companies like RWE.
Researchers have created a more realistic picture of wind energy output in Europe, correcting for biases in existing data. The updated simulations show that the current European average capacity factor is 24.2%, but could increase to over 31% with improved grid interconnection and technology advancements.
The Stanford Precourt Institute for Energy has awarded $2.7 million to 15 faculty seed grant recipients for groundbreaking research on clean energy. Researchers will develop novel technologies, including battery management systems, perovskite solar cells, smart windows, and thermoelectric technologies.
The report confirms that wind power is the largest source of U.S. electric-generating capacity additions, with $14.5 billion invested in new capacity in 2015. The average capacity factor among projects built in 2014 reached 41%, up from 31% among projects built from 2004-2011 and 26% among projects built from 1998-2003.
Researchers at Harvard have discovered a whole new class of high-performing organic molecules that can store electricity safely and efficiently in large batteries. These molecules are inspired by vitamin B2 and offer improved stability and solubility compared to previous discoveries.
Researchers at EPFL have developed an osmotic power generation system that delivers unparalleled efficiency, using a new type of membrane just 3 atoms thick. The system harnesses the movement of salt ions between fresh water and seawater to generate electricity.
A new study analyzes national climate plans and finds the world is unlikely to meet its 2C warming target. The researchers recommend increasing efforts in solar energy, wind power, forestry, and methane reduction to get on a path towards 2C. However, they also note that the 1.5C goal remains achievable with bolder targets.
A Swedish study investigates the feasibility of replacing nuclear power with wind power in Sweden's energy mix. The authors conclude that a backup system based on fossil fuels would be required to maintain constant emissions, leading to doubled CO2 levels.
A new study suggests that China can increase its use of wind power, but not in the most resource-rich areas. The country should focus on integrating wind into existing grids for a substantial gain in renewable energy and reduced greenhouse gas emissions.
A new hybrid decision-making model has been developed to help Serbia and other developing nations meet their renewable energy targets. The tool ranks 20 decision-making criteria according to investor priorities, favoring wind power projects due to under-utilized wind resources.
Researchers have discovered a new way to create nanoparticles that can replace some rare-earth elements, ensuring the continued supply of critical materials. The approach uses a mixed iron-cobalt oleate complex and shows strong magnetic properties and energy-storing capabilities.