Articles tagged with Electrical Power
Researchers developed a multifunctional elastic metasurface that can be freely configured for practical applications. The metasurface harnesses elastic waves in piezoelectric components, increasing electricity production efficiency and overcoming limitations in theoretical analysis.
Researchers at PNNL have developed a safe, economical, and water-based flow battery made with commercially available industrial quantities of nitrogenous triphosphonate. The new design exhibits remarkable cycling stability over 1,000 charging cycles, outperforming previous iron-based batteries.
Researchers from Pohang University of Science & Technology developed a new gel-based battery system using micro silicon particles and gel polymer electrolytes, enabling stable performance even with larger silicon particles. The system exhibits improved energy density and is ready for immediate application.
The 2023 Geothermal Rising Conference highlights growing interest in superhot rock geothermal, with papers validating its viability for high power output and small spatial footprint. Researchers are developing new technologies to access these resources, including millimeter wave energy to drill deeper holes.
A Binghamton University professor leads a research team to explore the stability of power grids with inverter-based resources, which have changed the grid's dynamics. The goal is to characterize the stability region without numerical simulation.
A new study found that exposure to coal particulate air pollutants is associated with a mortality risk more than double that of exposure to PM2.5 from other sources. The researchers estimated that 460,000 deaths were attributable to coal PM2.5 in the US between 1999 and 2020.
A team led by Lehigh University's Yahong Rosa Zheng is developing an Autonomous Observatory Node that can collect and transmit data from underwater sensors wirelessly, without the need for expensive subsea cables. The prototype aims to operate at depths of up to 1000 meters, enabling researchers to study extreme environments and detect...
The joint team developed a Fire & Explosion Management System (FXMS) using Digital Twin technology, offering high-accuracy real-time monitoring and predictions of battery conditions up to five years. The technology can extend the lifespan of lithium-ion batteries by over 50%, reducing carbon emission through reduced battery waste.
The project aims to assess the operational resilience of microgrids on DoD installations and ships, using new operational resilience indexes developed by Lehigh University researcher Javad Khazaei. The team will develop a dashboard to monitor resilience indexes in real-time, providing recommendations for improving the systems.
A new study from Stanford University suggests that installing software to coordinate various consumer demands and resources can improve electric grid reliability and reduce peak load. This approach could save utility companies and customers billions of dollars in infrastructure upgrades by 2050.
Researchers at Nagoya University developed a nanosheet device with the highest energy storage performance yet seen. The device achieved a 1-2 orders of magnitude higher energy density while maintaining high output density and stability over multiple cycles.
A new study models optimal investment in China's grid-connected offshore wind, suggesting at least 1000 GW of capacity could be deployed at a lower cost than nuclear units. The research aims to improve provincial deployment plans and boost national renewable penetration from 31.5% to 40%.
FES2023 brings together leading researchers and industry experts to share groundbreaking research on AI-based energy solutions, smart grids, and renewable energy systems. The conference covers key themes including planning and operation of energy systems, electricity markets, and demand response.
Researchers at POSTECH developed seawater batteries with improved performance by incorporating chelating agents, overcoming limitations of traditional lithium-ion batteries. The new design achieved high energy efficiency and capacity, making it a promising candidate for next-generation energy storage systems.
A study by Carnegie Mellon researchers found that about 10% of US pipeline compressor stations are electric, making them vulnerable to electric outages. Electric outages could force a loss greater than 2 gigawatts of downstream gas generators, causing significant reductions in available gas.
Researchers at Cranfield University are developing a new generation of lithium-sulfur batteries that offer improved performance and reduced weight compared to traditional lithium-ion batteries. The technology has the potential to support electrification of short-haul aircraft, light goods vehicles, and passenger vehicles.
Researchers at GIST developed a novel thermoelectric generator inspired by zebra skin, creating a high in-plane temperature gradient for generating electricity. The design uses a pattern resembling black-and-white zebra stripes to increase its applicability while reducing environmental impact.
A new Argonne study compares drone energy usage to diesel trucks and electric vehicles, finding that drones consume as much energy as either on average windy days. The models are based on regional energy consumption and facility costs of direct delivery drones under various wind speed scenarios.
A novel deep learning-based forecasting model predicts uncertain parameters related to renewable energy sources, their energy demand, and market prices. The model demonstrates improved prediction accuracy and efficiency compared to existing methods.
A new OSU study highlights the importance of understanding daily energy-use patterns at home, as utilities move toward time-of-use energy pricing models. The study found that most homes have an 'evening peak' load shape, with households exhibiting this shape before and during shelter-in-place orders.
Researchers at Binghamton University have developed ingestible biobatteries that utilize microbial fuel cells with spore-forming Bacillus subtilis bacteria to power sensors and Wi-Fi connections. The biobatteries can generate up to 100 microwatts per square centimeter of power density, enough for wireless transmission.
Researchers developed biocomposites from corn stover and switchgrass for 3D printing with satisfactory properties. A national hydropower testing facility network can accelerate innovation and adoption of clean energy technologies. An EV truck stop design enables megawatt-scale charging, reducing carbon emissions.
Scientists at North Carolina State University have created a low-cost solution for making wearable electronics by embroidering power-generating yarns onto fabric. The technique allows for self-powered sensors, including motion tracking and numeric keypads, with durable performance even after washing and rubbing tests.
Researchers from the University of Johannesburg deployed Few Shot Learning (FSL) for NIALM, a non-intrusive appliance load monitoring system. FSL requires only 7 test images to recognize appliances with 97.83% accuracy, making it faster and more cost-effective than traditional Machine Learning.
Researchers at the University of Oxford have made a groundbreaking discovery that sheds light on the atomic mechanism behind high-temperature superconductors. The study reveals that copper pairs are held together by magnetic interactions in high-temperature superconductors, rather than thermal vibrations.
Researchers at Gwangju Institute of Science and Technology improve triboelectric nanogenerators by using mesoporous carbon spheres to enhance charge transport and surface charge densities. The device achieves a 1300-fold higher output current, enabling potential sustainable energy harvesting.
A new study by Boston University School of Public Health found that decarbonization pathways need to incorporate more efficient electric heating technologies and renewable energy sources to minimize strain on the US electric grid. The researchers analyzed building energy data from March 2010 to February 2020 and found that winter heati...
A study by Cornell University engineers reveals that smart thermostats inadvertently cause peak demand on the grid during off-peak hours, offsetting greenhouse gas emissions benefits. The researchers propose educating consumers to use smart thermostats and staggering morning ramp-up times to mitigate this issue.
Researchers at Binghamton University have developed a 'plug-and-play' biobattery that lasts for weeks using three bacteria in separate vertical chambers. The batteries can be stacked to improve output voltage and current, offering a solution for long-term power autonomy in remote locations.
Researchers at KTH Royal Institute of Technology have developed a thermoelectric coating that converts low-grade heat into electrical power, with potential to replace batteries in wearables and IoT devices. The coating can be applied to any surface that generates heat, enabling efficient energy harvesting.
Ritsumeikan University researchers create a novel thin-film flexible piezoelectric-photovoltaic device that can generate electricity from indoor lighting. The device's performance is improved through strain-induced polarization in the ZnMgO layer, increasing open-circuit voltage and overcoming charge recombination issues.
Concentrated solar power (CSP) plants use wet cooling methods to dissipate waste heat, but this can lead to significant water loss. A new study developed a radiative cooling system with cold storage that reduces water consumption by up to 85% in hot regions.
Researchers at Ritsumeikan University in Japan have developed a new method to fabricate cadmium-free thin-film solar cells with improved energy conversion efficiency. The process replaces toxic materials with native buffer layers formed through air-annealing, reducing waste and increasing the potential for large-scale manufacturing.
The new journal iEnergy aims to unite experts in various energy-related disciplines to accelerate the transformation of the energy structure and achieve carbon neutrality. Original research articles focus on technologies and solutions for power and energy challenges, with a special connection to electrical energy.
Researchers at Chalmers University of Technology have successfully converted solar energy into electricity using a thermoelectric generator. The new technology can store solar energy for up to 18 years and release it when needed, making it a promising solution for renewable energy production.
A scalable probabilistic model predicts EV charging demand will peak twice as high as current demand by 2030, unless charging patterns are managed. The model can account for various factors, including driver behavior, location, and timing of charges.
Researchers at Aalto University developed a simple, low-cost wireless charging system that provides efficient charging regardless of device position or orientation. The new design uses a cylindrical power coil to create a donut-shaped charging field, increasing convenience and reliability for consumer devices.
Researchers propose a disaggregation strategy to estimate power consumption of individual electrical facilities, improving accuracy over traditional methods. The new approach uses linear regression residuals and clustered daily routines to provide more accurate estimations for workdays and holidays.
New research suggests nuclear power can provide low-cost energy and replace natural gas as a backup source, enabling faster decarbonization in countries with poor wind resources. The analysis found that nuclear is the cheapest way to eliminate all electricity-system carbon emissions nearly everywhere.
Researchers at the University of Tsukuba have developed a new technique for detecting hydrogen fuel cell failures using magnetic flux sensors. This breakthrough may lead to more reliable and efficient zero-emission vehicles with reduced carbon footprint.
A comprehensive guideline for exploring nanoscale flexoelectricity via AFM tip pressing has been developed by a joint team of researchers. The method allows for the control of flexoelectricity in nanometer-sized materials, showing potential applications as generators and actuators in nanoscale units.
Researchers at Aalto University have developed a power transfer technology that allows for wireless charging regardless of device position or orientation. The system uses a grid of transmitters and receivers to capture magnetic flux, generating an electric current to charge devices.
Researchers at Idaho National Laboratory have created a nationwide-scale electric power grid test bed to develop and demonstrate cutting-edge technologies for grid modernization. The enhanced test bed offers a collaborative environment for labs, industry, academia, and government to leverage shared resources.
A new method of predicting battery failure has been developed, showing accuracy 15-20% higher than current approaches. The technique uses advanced probabilistic machine learning and is applicable to any battery with a simple electrical circuit model.
Researchers at NTU Singapore have developed biodegradable zinc batteries made of cellulose paper that can power flexible electronics and biomedical sensors. The batteries are non-toxic, do not require aluminum or plastic casings, and can be buried in soil to break down within weeks.
A comprehensive review of similarity theory in PEMFC research reveals its potential to accelerate progress. The study highlights the benefits of using dimensionless analysis to compare results and reduce testing efforts. However, challenges remain in developing integrated performance criteria.
The AI optimization improves the motor's power factor, reducing disruptions to the power grid. The optimized motor shows excellent performance, with improved efficiency and increased torque while drawing less current.
Researchers at Stanford University have overcome a key obstacle in phase-change memory technology, enabling faster and more energy-efficient data storage. By using a thermally insulating flexible substrate, they reduced power consumption by a factor of 10 on flexible substrates and 100 on rigid silicon.
Researchers from the University of Tsukuba have discovered that ultraviolet light can modulate oxide ion transport in a perovskite crystal at room temperature. This enables the enhancement of future battery and fuel cell functionality by increasing energy storage and output efficiency.
North Carolina State University researchers develop a soft and stretchable device that harnesses kinetic energy from movement to generate electricity. The device works in both dry and wet environments, including underwater, with a power density comparable to popular energy harvesting technologies.
New nanocomposite materials with high thermal conductivity are being developed to address the challenges of electronic devices and infrastructure. These materials can withstand extreme temperatures, mechanical stress, and moisture while retaining the advantages of polymers.
A new national poll found that many older adults aren't fully prepared for emergency situations, with fewer than half having signed up for emergency warning systems or put together an emergency kit. The poll highlights the importance of key steps such as having a backup power supply and communicating evacuation plans with loved ones.
Researchers have made the world's first real physical measurements of carbon nanotube conductivity, validating theoretical models and paving the way for improved electrical power cables. The new approach uses identical carbon nanotubes with varying diameters to measure conductivity between them.
A new study by UTSA researchers presents a method to stop cyber attacks on GPS-enabled devices, including electrical grids and driverless cars. The algorithm can recognize false GPS signals and counter an attack in real-time, making it crucial for securing GPS signals used in various technologies.
Researchers from Universite catholique de Louvain and Stanford University have synthesized a molecule with exceptional electronic properties, allowing for miniaturized devices. The discovery could lead to new miniaturization opportunities for future computers and green devices.
A new filter technology has been developed using inert gas to bore holes in high-quality steel, resulting in a more stable and flexible membrane. The process is environmentally friendly and eliminates the need for toxic chemicals, making it an attractive alternative to plastic membranes in highly sensitive applications.
The gift enables researchers to study ways to improve electrical systems using software-defined networking technology, aiming to boost efficiency and security. The laboratory will be one of the first facilities to test emerging tech in managing power distribution.
New research by National Physical Laboratory produces technology for accurate measurements of Planck's constant, a fundamental constant that relates frequency to energy. The technique enables the kilogram to be redefined in terms of this constant, providing a universal standard and greater long-term certainty for scientists.
Scientists at Sandia have successfully imaged the Rayleigh-Taylor instability in fast Z-pinches, a major obstacle to harnessing nuclear fusion. The accurate simulations will enable researchers to better tweak conditions and combat the effect of the instability, potentially achieving scientific breakeven in two to three years.