Articles tagged with Solar Power
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A University of Houston professor has developed a nonreciprocal solar energy harvesting system that surpasses the thermodynamic limit and clears the way to use solar power 24/7. The new system can achieve significant efficiency boosts, paving the way for practical applications in power plants.
Researchers from Nara Institute of Science and Technology have discovered a high fill factor in all-polymer blend solar cells, exceeding 60%, which is higher than previously reported values. This breakthrough could help solve the environmental issue of silicon-based solar cell waste.
Researchers from the University of South Australia found that households with solar panels and batteries can significantly reduce their annual electricity costs when charging electric vehicles. With off-peak charging, EV owners can save up to 39.6% on energy costs, making it a more affordable option for environmentally-friendly driving.
Researchers found that shadows on single cells or parallel-connected cells result in similar output current decrease ratios to sunlight. However, series-connected cells experience excess power loss and temperature rise, leading to further degradation.
A new Stanford study found that widespread home electric vehicle charging at night could strain the US western grid by up to 25% by 2035. The researchers recommend daytime charging at work or public stations to reduce peak demand and greenhouse gas emissions.
A new study found that decarbonization efforts in Texas significantly reduce air pollution-related health effects, offsetting the cost of these efforts. However, Black and low-income communities still face higher levels of air pollution and related health effects.
Researchers at University of Cincinnati found that emphasizing cost savings over global warming increases support for renewable energy sources. The study tested four messaging approaches and found durable bipartisan effects in favor of cost savings.
Scientists have developed a new solar-powered laser with improved conversion efficiency, enabling more stable and efficient space-based energy generation. The design features four mirrors and laser rods, allowing for precise control over the pump cavity and minimizing thermal stress effects.
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...
Using concentrated sunlight, a team of researchers from Sandia National Laboratories successfully roasted green chile, achieving comparable results to traditional propane roasting. The study found that solar power reduces greenhouse gas emissions by 2.68 pounds per 22 pounds of green chile roasted.
Researchers at Iowa State University are developing a physics-based system using artificial intelligence to improve the cybersecurity of energy delivery systems. The 'GridDeep' project aims to prevent, detect, and mitigate attacks on renewable sources sending power to the grid.
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.
Researchers in China and the US developed a computer simulation model addressing solar power's intermittency by adding biomass to advance a reliable, affordable heating solution. The proposed solar-biomass hybrid system provides cleaner energy than fossil fuel for single-family homes.
Researchers propose a novel gravitational-based storage solution using lifts in tall buildings to store energy. The system, called Lift Energy Storage Technology (LEST), stores energy by lifting wet sand containers or other high-density materials.
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.
Australian researchers have developed a device that can generate electricity from thermal radiation using technology similar to night-vision goggles. The team successfully tested a 'thermo-radiative diode' capable of converting infrared heat into electrical power, with the potential to harness solar energy at night.
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.
A new machine learning-based system developed by MIT and Stanford researchers enables the rapid development of optimized production methods for perovskite-based solar cells. The system has already led to the manufacturing of cells with an energy conversion efficiency of 18.5 percent, a competitive level for today’s market.
A team of scientists has developed a solar-powered water filter that can remove pathogens, pesticides, and micropollutants from contaminated water. The filter uses titanium dioxide (TiO2) nanowires and carbon nanotubes to produce reactive oxygen species that kill bacteria, viruses, and other microorganisms.
Researchers at Kyoto University have developed a new type of organic solar cell that generates electricity efficiently even with a relatively low offset of 0.1 eV. This breakthrough offers a promising solution for the production of more efficient and flexible solar panels, potentially reducing energy consumption and environmental impact.
Researchers developed a photovoltaic cell that harnesses energy from temperature differences between the cell and surrounding air, generating 50 milliwatts per square meter at night. The device avoids need for batteries and can be incorporated into existing solar cells, making it suitable for remote locations with limited resources.
Researchers at the University of Surrey have developed a new design for ultra-thin photovoltaic panels that absorbs over 65% of sunlight, outperforming previous records. The innovative honeycomb structure enables efficient light absorption from any angle, trapping light inside the solar cell and generating more energy.
Researchers at MIT have developed a new system that can automatically clean solar panels without using water, reducing dust accumulation's impact on efficiency. The system uses electrostatic repulsion to detach dust particles, improving overall power output and potentially saving $200,000 in annual revenue.
Researchers at ASU's Holman Research Group have developed a technique called external radiative efficiency (ERE) to measure internal voltage in CdSeTe devices. The new approach reveals that selectivity losses, caused by imperfect semipermeable membranes, are the main limitation to performance.
Researchers at MIT and China developed a desalination system that is both more efficient and less expensive than previous methods. The system uses natural convection to draw salt from the water, eliminating the need for wicks or power sources.
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.
A team from UNIGE and Empa recommends a domestic generation mix of wind and photovoltaic energy to reduce Switzerland's contribution to global greenhouse gas emissions. The scenario would enable the country to reduce its footprint by an estimated 45%.
Pusan National University researchers demonstrate the effectiveness of integrating a radiative cooler with a multi-junction solar cell, achieving a 6°C temperature drop and a 2% increase in open-circuit voltage. This breakthrough could lead to more efficient and eco-friendly solar cells, paving the way for renewable energy sources.
Researchers developed a low-cost and simple method to produce perovskite photovoltaic materials on an industrial scale, paving the way for creating lightweight and flexible solar cells. The new technique reduces waste and toxic byproducts associated with manufacturing perovskite photovoltaics.
Researchers at Universidad Carlos III de Madrid have designed a system that uses hydrothermal biomass carbonisation and solar power to extract more energy from biomass. The system reduces the need for drying pre-treatment, making it more sustainable and efficient.
Researchers at Northern Illinois University and NREL have developed a cost-effective Scotch-tape-like film that captures 99.9% of leaked lead from damaged perovskite solar cells. The film alleviates health and safety concerns without compromising performance or operation.
Researchers have achieved a new benchmark in designing atomically thin solar cells made of semiconducting perovskites. Sunlight effectively shrinks the space between atomic layers, improving photovoltaic efficiency by up to 18%. This breakthrough addresses stability concerns and offers significant implications for studying excited stat...
Researchers found that bigger connections between the two grids can increase transmission capacity and provide significant value through sharing generation resources and flexibility across regions. The study suggests that a macrogrid could pay for itself in three primary ways: by helping different parts of the country meet their peak d...
A new study models the viability and impact of window-integrated photovoltaics at a city scale, showing that buildings in Melbourne could provide up to 74% of their own electricity needs through comprehensive adoption of existing rooftop PV technology. The researchers also highlight the potential for emerging solar windows and building...
A recent study suggests that wind and solar power can meet more than 80% of global electricity demand, especially in larger, lower-latitude countries, but may require energy storage for multi-day periods in colder regions
Researchers develop a more accurate mathematical model to predict solar cell output power, considering degradation and external factors. The new model will aid policymakers in making informed decisions on solar power installations.
Researchers from Harvard and Tsinghua University found that solar energy could provide 43.2% of China's electricity demands in 2060 at less than two-and-a-half U.S. cents per kilowatt-hour. The study highlights a crucial energy transition point for China and other countries, where combined solar power and storage systems become a cheap...
Researchers find that most countries are not growing wind and solar power fast enough to meet global warming targets of 1.5°C or 2°C. The study analyzes data from 60 countries and finds that only a few countries, like Portugal and Ireland, have seen rapid growth in onshore wind and solar power.
Dr. Mohammad Al Hashmi's research focuses on reducing energy consumption in residential buildings in hot and arid climates using renewable energy systems such as solar and wind power. His framework combines building interventions and clean energy approaches to minimize environmental impact.
A team of researchers from the University of Cambridge has identified a key loss pathway in organic solar cells that reduces their efficiency. By manipulating molecules inside the solar cell, they found a way to suppress this pathway and potentially overcome the hurdle for organic solar cells to compete with silicon-based cells.
Researchers synthesized a new conjugated polymer using two chemical reactions, showing it outperforms traditional methods in organic and perovskite solar cells. The Stille reaction pathway yielded superior results with efficiencies of up to 15.1% in photovoltaic devices.
Researchers have developed a new structure and materials for tandem solar cells, enabling more light to be captured and energy converted effectively. The n-i-p configuration achieved a significant improvement in power-conversion efficiency, exceeding 27%, surpassing previous best values.
A 2 MWel power plant will be built in Saudi Arabia, combining CSP and desalination techniques to achieve unprecedented efficiencies. The DESOLINATION project aims to provide low-cost renewable electricity and fresh water for the GCC region.
Researchers from Sandia National Laboratories used 22-foot-wide tethered balloons to collect dust samples, confirming the new solar-power technology's safety. The technology stores heat in heated particles, which can store energy for days or weeks, stabilizing power output.
Researchers at the University of York have discovered a solar absorber material called antimony selenide that can self-heal broken bonds. This ability eliminates problematic electronic states and has important implications for applications in optoelectronics and photochemistry.
A new study by Oregon State University researchers finds that co-developing land for solar photovoltaic power and agriculture could reduce US carbon emissions by 330,000 tons annually and create over 100,000 jobs. The proposed agrivoltaic systems would produce 20% of US electricity generation while minimizing crop yield impact.
A new system developed by Arizona State University researchers measures solar panel performance in outdoor settings, enabling real-time measurements and detailed diagnostics. The goal is to increase efficiency and lifespans of photovoltaic systems, supporting the development of universally effective solar cells and systems.
The $2.5 million DOE grant project will investigate a newly designed molten salt valve to improve reliability and reduce maintenance costs in concentrating solar power systems. The advanced valve design aims to withstand extreme temperatures and pressures, reducing material stress and fatigue.
New research suggests climate change could lead to fewer sunny days for hot regions, impacting solar power production. Increased atmospheric moisture and aerosols may result in a decrease in solar radiation and an uptick in cloudy days, particularly in arid regions like the Middle East and American Southwest.
Researchers at the University of Arizona are developing a hybrid solar desalination system that combines membrane distillation, concentrated solar power, and photovoltaics to recover water from concentrated waste streams. The system uses renewable energy resources to purify concentrate streams with maximum efficiency.
A new mathematical model for solar irradiance prediction has been developed at Uppsala University and proved highly reliable. The MCM model provides accurate forecasts of solar power production fluctuations, enabling greater control over solar energy use.
The 'Testbench' project enhances the quality of efficiency measurements for solar power storage systems, facilitating comparison and standardization. The goal is to improve reproducibility and confirm the results, ultimately benefiting operators and manufacturers in the growing market.
KAUST researchers have devised a way to turn rigid silicon into solar cells that can be stretched by up to 95 percent while retaining a high solar energy capture efficiency of 19 percent. This breakthrough overcomes the rigidity limitation of silicon, allowing for flexible wearable electronics and robots.
Researchers create standardized way to quantify and compare solar power variations influenced by cloud coverage, time of day, and dust particles. This method may help optimize photovoltaic farms and inform engineering and policy for more efficient solar power production.
Researchers have developed special light harvesters that can convert ambient indoor lighting into usable energy, potentially powering wireless devices in homes and offices. The technology uses organic photovoltaics to optimize the use of artificial room lighting, which is abundant but often underutilized.
Researchers develop a new way to measure solar panel degradation by using past meteorological data and machine learning algorithms. The method allows for real-time inspection and prediction of solar power output, enabling faster repairs and improved forecasting.
A new tool, DeepSolar, scans high-resolution images of the US for solar panels, registering their locations and sizes. Researchers found 1.47 million individual installations nationwide, correlating them with factors like income, education, and incoming solar radiation.
The Stanford team's analysis found 1.47 million solar panel installations in the US, significantly higher than previous estimates, and identified factors leading to adoption, such as household income and geographic location. The machine learning program DeepSolar was able to correctly identify images with solar panels 93% of the time a...
A study by ETH Zurich researchers found that clean air would increase solar radiation nationwide, allowing for a one-tenth increase in electricity production. This could lead to additional electricity generation of 85-158 terawatt hours per year, generating significant revenue for the Chinese electricity industry.
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.