Articles tagged with Renewable Energy
Top nitrogen researchers discuss potential pathways to achieve radical improvements in nitrogen fixation chemistry, driven by molecular-level understanding and discovery of new catalytic systems. They also present a clean and renewable light-driven process for converting nitrogen to ammonia, a primary component of fertilizer.
Researchers found that local population involvement and fair decision-making processes are critical to successful low-carbon energy transitions. This includes communication channels, information sharing, and addressing concerns of those affected by the change.
Researchers from Imperial College London found that investing in existing low-carbon energy technologies now can save 61% of future costs compared to waiting for a mythical future technology. Delaying investment can lead to grossly oversized and underutilized power systems, or those that are far from being decarbonised by 2050.
A team of scientists has responded to criticisms on the feasibility of 100% renewable electricity systems, finding that technical solutions exist to address concerns about grid stability and variability. The study reveals that these solutions are affordable, especially given the decreasing costs of wind and solar power.
A new study by ICTA-UAB analyzes the impacts of substituting fossil fuels for cleaner energies on lifestyles. The researchers conclude that renewable energy sources must grow at a rate two to three times current projections to maintain net energy per capita.
A research team developed a more effective variant of an enzyme that can break down polyethylene terephthalate (PET), a common plastic used in bottles. The improved enzyme shows promise in degrading not only PET but also a bio-based substitute, polyethylene furandicarboxylate (PEF).
A recent study found that less than 2% of pages in leading biology, chemistry, and physics textbooks discuss climate change. The research team analyzed over 15,000 combined pages from current editions of 16 undergraduate textbooks published between 2013 and 2015, concluding that there is a significant lack of emphasis on renewable ener...
Researchers at Kumamoto University developed a new catalyst that improves NH3 combustibility and suppresses NOx generation. The catalyst allows for the decomposition of NH3 into H2 with low ignition temperature and purification through oxidation.
A team of renewable energy experts at the University of Exeter has developed a new method to produce hydrogen from sunlight using a revolutionary photo-electrode. This breakthrough could create a virtually limitless energy source with zero carbon emissions and double the energy density of fossil fuels.
Researchers at Argonne National Laboratory found that nuclear power plants can adjust to changing demand for power, enabling the use of more renewable energy. This flexibility can lower electricity costs for consumers and reduce greenhouse gas emissions.
The Chain Reaction Innovations program at Argonne National Laboratory aims to accelerate the development of sustainable energy technologies. Eighty-three innovators from 26 states have been selected to participate in a two-year program focused on enhancing energy efficiency or sustainability, and overcoming complex scientific challenges.
The University of Surrey has developed a new methodology for designing smart-wearables that utilizes triboelectric materials. This technology, known as Triboelectric Nanogenerators (TENGs), can harvest energy from movement through electrostatic induction.
Researchers at NREL have made progress in scaling up perovskite solar cell production, but issues persist, including the non-uniform coating of chemicals and inactive zones between cells. To address these challenges, scientists are exploring various scalable deposition methods.
The High Throughput Experimental Materials (HTEM) Database contains detailed properties and synthesis conditions of inorganic materials, accelerating material science advancement globally. NREL's large-scale database makes it easier for researchers without expensive equipment to explore new materials.
Scientists at NREL have discovered a method to enable the reversible chemistry of magnesium metal in noncorrosive carbonate-based electrolytes. The technology possesses potential advantages over lithium-ion batteries, including higher energy density, greater stability, and lower cost.
A team of researchers from Colorado State University's Energy Institute has received a $1.2 million grant to study the efficiency of natural gas engines, aiming to make them as efficient as diesel engines. The research could lead to cost savings and improved air quality, with potential benefits for commercial vehicles.
Researchers at Ames Laboratory have developed a CaloriSMART test system that demonstrates sustained cooling power of about 10 watts, with a 15 degree Celsius gradient, using only three cubic centimeters of gadolinium. The system enables rapid evaluation of materials in regenerators without significant investment.
Researchers from NREL have pinpointed regions on enzymes that can be targeted via genetic engineering to break down cellulose faster. The team has gained a better understanding of the structure-activity relationships of these enzymes, which are crucial for industrial processes such as cellulosic ethanol production.
USU chemists design a molecule featuring a pi-electron conjugation unit as a two-electron storage anolyte for AORFBs, enabling total use of organic materials. The battery delivered high voltage, impressive energy efficiency, and capacity retention.
Researchers at Imperial College London caution against relying on over-optimistic renewable energy models that predict whole systems can run on near-100% renewables by 2050. Despite increasing UK energy production from renewables, the lack of firm and dispatchable backup energy systems poses reliability issues.
Researchers at Concordia University developed a method to optimize energy consumption in buildings, reducing carbon emissions by 59% while cutting costs by 75%. The study used hydro-powered heat pumps and lake cooling as renewable energy sources, demonstrating the potential for net-zero energy usage.
Researchers at RMIT University developed an ultra-thin coating that automatically regulates temperature in buildings, reducing energy consumption and emissions. The self-modifying coating can block heat during summer and retain heat inside when it's cold, leading to significant environmental benefits and financial savings.
The study proposes three methods for consistent power among all sectors in 20 world regions, matching supply and demand in 30-second increments. It suggests solutions with no added hydropower turbines and no storage in water, ice or rocks, avoiding blackouts at low cost.
New research reveals that removing fossil fuel subsidies will only slightly slow the growth of CO2 emissions, with smaller effects in developing economies. The largest emissions savings would come from oil and gas exporting countries, but removal could have a detrimental impact on poor households, who may struggle to afford modern fuels.
Researchers developed a new molecule, EH44, to replace the unstable spiro-OMeTAD layer in perovskite solar cells. The new design resolves chemical makeup issues and maintains steady efficiency, bringing emerging technology closer to commercial deployment.
Researchers at Oak Ridge National Laboratory have developed a novel method to create supertough renewable plastic with improved manufacturability. Quantum computers are expected to use dramatically less energy than current supercomputers, reducing energy usage by more than one million kilowatt hours.
Research by NREL found that up to 3% of PEVs on the road (7.5 million vehicles) does not significantly increase residential power demand. However, uncoordinated charging in clusters may overload distribution transformers, requiring infrastructure upgrades.
Renewable energy generation causes grid frequency fluctuations due to variable wind speeds and photovoltaic feed-in. Power trading appears more significant in grid frequency fluctuation than renewable feed-in, with small grids showing larger fluctuations.
Microgrids in Alaska provide electricity for over 200 communities, generating more than 2 million hours of operating experience annually. Renewable energy sources reduce energy costs and improve resilience in the face of grid failures or sabotage.
A new study suggests that unconventional spaces like rooftops, salt-affected land, and contaminated sites can generate renewable energy while sparing valuable agricultural land. The research found that these land-sparing sites in the Central Valley could exceed state energy demands up to 13 times for photovoltaics.
Researchers at NREL discovered distinct roles of small sugars in cellulase activity and stability, shedding light on the functions of glycans attached to proteins. This knowledge can be used to improve enzyme performance for biomass conversion to renewable fuels and products.
Researchers at NREL have created a novel catalytic process to produce renewable acrylonitrile using 3-hydroxypropionic acid, achieving unprecedented yields and eliminating production of hydrogen cyanide. The new method offers a cost-effective alternative to traditional petroleum-based production processes.
Scientists at NREL have developed a switchable solar window that converts sunlight into electricity while maintaining transparency. The device uses thermochromic materials and has an average light transmission of 68% in its transparent state.
Researchers at Ohio State University describe a new semiconductor LED made with GaN-based materials that could enhance LED solid state lighting without significant changes to manufacturing facilities. The breakthrough uses quantum-mechanical tunneling to create 'holes' for radiative recombination, reducing energy losses and self-heating.
A new study suggests that replacing incandescent bulbs with CFLs or LEDs is a good option, especially for reducing power-plant emissions. However, delaying adoption may be more cost-effective for consumers who want to minimize their energy bills and reduce home energy use.
Researchers developed a novel rare earth recovery process that recovered over 80% of the elements present in coal sources and produced more than 80% total rare earth elements on a dry whole mass basis. The concentrates contained critical elements like neodymium and yttrium, representing over 45% of the total concentrate.
Global carbon dioxide concentrations reached a record 403 parts per million in 2016, and are expected to increase by 2.5 parts per million in 2017. The United States and European Union are projected to see slight declines in emissions this year, while China's emissions are expected to grow by approximately 3.5 percent.
A new study by Emory University researchers found that mandatory state policies are associated with the largest reductions in power plant emissions. The analysis shows that policies with mandatory compliance resulted in an average of 2.6 million metric tons of CO2 emissions per year reduction.
The research demonstrates significant potential for semiconducting single-walled carbon nanotubes as primary material for efficient thermoelectric generators. The discovery enables the fabrication of devices from a single material, simplifying production and improving performance.
Sandia National Laboratories engineers developed new fractal-like receivers that are 20% more efficient at absorbing sunlight without special coatings. The designs can be used in small-scale concentrating solar facilities and have potential applications in India's renewable energy market.
The licensed technology increases deposition rates by three orders of magnitude, improving quality and minimizing roughness in printed parts. This enables the production of high-resolution parts with reduced post-processing needs.
Researchers have created a new material that can store renewable energy efficiently. Metal-organic frameworks exhibit conductivity similar to metals, enabling large-scale storage of solar and wind power. This breakthrough could revolutionize intermittent renewable energy sources.
A new battery powered by sulfur, air, water, and salt has been developed to store twice as much energy as a lead-acid battery while being nearly 100 times less expensive to produce. The invention aims to help integrate more renewable energy into the grid, addressing variability challenges.
Researchers at MIT have developed an 'air-breathing' battery that can store electricity for months, reducing costs to around $20-$30 per kilowatt hour. The battery uses sulfur and oxygen to generate charge, making it a potential solution for widespread renewable energy integration.
New research from Carnegie Institution for Science suggests that North Atlantic wind farms can generate at least three times more power than onshore wind farms, tapping into winds throughout the atmosphere. However, this tremendous wind power is seasonal and primarily available during winter months.
Researchers at NREL and Johns Hopkins University have developed a methodology to quantify the life cycle land use of natural gas. The study provides quantifiable information on the land use requirements for natural gas production, enabling fair comparisons of energy technologies.
The Colorado State University team aims to increase algal cultivation productivity, optimize biomass composition, and extract different types of algal lipids to reduce upgrading costs. The goal is to double the yield of biofuel precursors from algae to around 3,700 gallons per acre per year.
The US Department of Energy has awarded the Donald Danforth Plant Science Center $16 million to develop stress-tolerant sorghum lines for bioenergy production. The project aims to optimize photosynthesis and water use efficiency, leveraging recent investments from DOE to accelerate sorghum feedstock enhancements.
Researchers propose a 'sociotechnical' framework to accelerate low-carbon transitions by aligning innovations and systems, focusing on socio-technical systems rather than individual elements. This is critical to achieve the goals of decarbonizing and saving energy faster, further, and more flexibly.
Researchers at NREL are developing nickel-based coatings to mitigate corrosion levels in CSP plants, which could improve system efficiency and extend lifespan. The coatings have shown a 96% reduction in corrosion rate compared to uncoated steel, with potential applications in thermal storage and heat-transfer fluid.
Researchers have discovered an enzyme that can break down cellulose fibers regardless of their crystalline structure, paving the way for commercial cellulosic biofuels. The enzyme, CelA, excels at hydrolyzing both simple and highly complex crystalline cellulose.
Researchers at Idaho National Laboratory and Colorado State University are integrating electrical grids globally to address disruptions. The Real-Time Super Lab concept shows how electricity can be rerouted across vast distances to prevent large-scale blackouts.
Researchers at Berkeley Lab developed graphene-wrapped magnesium nanocrystals with enhanced hydrogen storage properties. The study found that an atomically thin layer of oxidation forms on the crystals without degrading their performance.
Researchers from UK and China collaborate on five projects to tackle key challenges in offshore renewable energy, maximizing environmental and socio-economic benefits. The projects will inform technology development and structure resilience to extreme events.
Researchers created algorithms that allow homes to use and share power from renewable energy sources during outages. The system improves grid reliability by prioritizing distribution of power based on forecasts and energy storage availability.
Scientists have developed a new algorithm that can mirror a microgrid's inertia by adjusting the photovoltaic system's direct current. The solution aims to make microgrids work like large power grids with high inertia, improving stability and reliability.
Researchers have discovered a way to improve Li-ion battery technology by replacing graphite with silicon, quadrupling anode capacity. The new material has been found to be more suitable when particles are sized between 10-20 micrometres and have the right porosity.
Researchers at NREL and EPFL achieved record efficiencies of 32.8% and 35.9% for dual-junction and triple-junction solar cells, respectively. The high-efficiency cells could reduce the cost of solar energy by up to 45 cents per watt.
A discovery by two scientists at NREL could aid the development of next-generation semiconductor devices. They used ultraviolet light to modify the interface between two dissimilar semiconductors, creating a flawless interface and enabling the integration of different classes of semiconductors.
A study led by Argonne National Laboratory found that waste-to-energy production pathways generate less greenhouse gases than decomposing organic waste. Researchers suggest diverting waste to energy can avoid landfill emissions and promote energy independence.