Articles tagged with Renewable Energy
Researchers have developed a quantum dot photoelectrochemical cell that achieves quantum efficiency for hydrogen gas production exceeding 100%, enabling more efficient solar energy conversion. This breakthrough has significant implications for the future of producing 'green' fuel.
Global Alliance of Solar Energy Research Institutes predicts 5-10 terawatts of PV capacity by 2030 through continued tech improvements and cost decreases. Flexible grids, increased demand, and energy storage advancements also needed to overcome challenges.
Three small businesses will collaborate with PNNL on projects addressing technical challenges in bio-coal and hydrogen transportation. The collaborations aim to overcome critical technology hurdles and gain a global competitive advantage for advanced energy products.
A Stanford scientist's new mathematical model could accelerate the design of high-power electrical storage devices, including car batteries and supercapacitors. The model aims to improve material performance and reduce costs, paving the way for more efficient energy storage solutions.
Scientists at USC Loker Hydrocarbon Research Institute have created a new method to generate hydrogen fuel from methanol, producing a carbon-neutral and potentially carbon-positive energy source. The research aims to develop renewable sources of energy that can mitigate climate change and reduce dependence on fossil fuels.
Scientists at NREL developed a new perovskite ink with a long processing window, allowing for the production of high-efficiency solar cells. The ink was tested using blade-coating and produced indistinguishable film morphology and device performance.
Research from Binghamton University found that adjusting solar panel angles four to five times a year can provide around 25 kW/m2 more power than seasonal adjustments. This practical solution can help reduce costs associated with automated tracking systems, making manual adjustment an economical option.
Scientists at NREL have achieved a new solar-to-hydrogen (STH) efficiency record of 16.2%, significantly improving upon the 14% efficiency set in 2015. The breakthrough, published in Nature Energy, involves an inverted metamorphic multijunction semiconductor architecture that enhances device efficiency and durability.
Scientists at NREL developed a proof-of-principle photoelectrochemical cell capable of capturing excess photon energy. The cell achieved peak external quantum efficiency for hydrogen generation of 114 percent, significantly improving the production of hydrogen from sunlight.
To meet the 1.5C target, global carbon emissions need to be reduced to less than 25% of energy supply by 2100 and land use change must decrease. A new study suggests that a high-renewable energy scenario could peak emissions as early as 2022.
Researchers in China have developed a battery prototype that captures atmospheric nitrogen to generate electricity, offering a promising alternative to existing lithium-nitrogen batteries. The battery's energy output is brief but comparable to other lithium-metal batteries, making it a potential solution for renewable energy storage.
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.
Researchers from NREL provide a detailed component and system-level cost breakdown for residential PV systems equipped with energy storage. The report reveals previously unknown soft costs and offers valuable information to stakeholders to guide cost reduction efforts.
A new study suggests that renewable energy sources are crucial for consumers to buy electric vehicles, as environmental performance trumps price and range confidence. The research found that participants prioritized the need for electricity to be produced from renewable sources for electric vehicles to be a true green alternative.
A new assessment by the Department of Energy's Lawrence Berkeley National Laboratory finds that wind and solar resources in Africa are plentiful, low-impact, and cost-effective. The research highlights the importance of strategic siting and grid interconnections to reduce system costs and impacts.
A new Yale-led study reveals significant market potential for renewable thermals in Connecticut, with the technology able to competitively serve 19% of thermal demand. To realize this potential, public policy and financing tools are needed to spur consumer demand.
Researchers at Columbia University are developing virtual power conversion systems that use interchangeable converter modules and software to control the converter function, reducing size, cost, and increasing reliability. These systems could lead to 20-30% reductions in Volt-Ampere rating for electric vehicle drivetrains.
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.
The agricultural robot is a semiautonomous system that gathers and transmits real-time data on crop growth and development. It uses various sensors and cameras to capture phenotypic information and assess environmental conditions, enabling crop breeders to make actionable decisions and improve yields.
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.
Dr. Yujie Sun is exploring novel electrolyzers to produce hydrogen at lower energy input, potentially creating a safer and cleaner source of fuel. His research aims to develop an oxidative process that produces value-added organic products in the liquid phase.
Researchers at Harvard have developed a new flow battery that stores energy in organic molecules dissolved in neutral pH water. The battery loses only one percent of its capacity per 1000 cycles, making it long-lasting and cost-effective.
Scientists from NREL found that surface recombination significantly affects the performance of polycrystalline perovskite solar cells. The study suggests that improving surface properties could lead to more efficient devices, with potential applications in photodetectors and light-emitting diodes.
Researchers explore electrocatalysis to transform atmospheric molecules into useful products, such as hydrogen and chemicals, for a sustainable future. Effective catalysts are needed to drive the process, but advancements in theory and experiments hold promise.
Scientists at NREL developed a method to improve the stability and activity of photoelectrochemical water-splitting devices, which can produce hydrogen from sunlight. The new approach uses a bilayer of titanium dioxide and molybdenum sulfide to protect the photocathode from acidic solutions.
Scientists at UMD developed an empirical model of global climate to analyze the Paris Agreement, suggesting countries can limit warming if they achieve pledged greenhouse gas reductions. The book, Paris Climate Agreement: Beacon of Hope, recommends a transition to renewable energy by 2060 to meet the RCP 4.5 scenario.
The USDA has allocated $2.9 million for research into integrated biorefineries, which aim to create biofuels and bioproducts from renewable energy sources. This funding will support projects that address the challenges of scaling up and operating these facilities, with the goal of enhancing US energy security and economic growth.
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.
The workshop emphasized social acceptability, aboriginal community involvement, and improving energy demand forecasts for northern regions. Researchers from Iceland and Quebec explored geothermal energy potential, data limitations, and demonstration projects to validate assumptions regarding low-temperature heat pumps.
The RAPID institute aims to improve efficiency and productivity in industries like oil and gas, pulp and paper, and chemicals. Researchers from PNNL and OSU will develop breakthrough technologies to save over $9 billion annually.
The 2015 Renewable Energy Data Book reveals significant US renewable energy growth, with solar and wind capacities increasing by 35.8% and 5.1%, respectively. Globally, renewables accounted for over 24% of electricity generation, up from 21.3% in 2014.
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 Griffith University have made significant progress in developing highly efficient catalysts for turning water into clean chemical fuel like hydrogen. The project aims to address high overpotentials hindering gas evolution reactions, which are critical for clean energy generation and storage technologies.
CSIRO's patented low-cost heliostats will be used in China for concentrating solar thermal (CST) electricity generation, helping the country reach its ambitious clean energy targets. The technology has great potential for medium to large-scale solar power due to its low cost of storing thermal energy.
Researchers from Berkeley Lab developed a way to image thin-film solar cells in 3D using optical microscopy, revealing internal obstacles that can trap electrons and reduce efficiency. The method has already improved understanding of the benefits of treating CdTe solar cells with cadmium chloride.
A Lehigh University researcher is developing business models to integrate clean energy into the grid, enabling seamless trading of surplus power among consumers and suppliers. This innovation has the potential to drastically reduce reliance on fossil fuels and associated environmental harm.
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.
Scientists at NREL made a groundbreaking discovery that Clostridium thermocellum can take up and utilize both CO2 and cellulose, counter-intuitive in heterotrophic microbes. This pathway enables the bacterium to use both CO2 and organic carbons during growth.
Researchers at Oak Ridge National Laboratory have demonstrated that 3D-printed permanent magnets can outperform conventional bonded magnets while conserving critical materials like neodymium and dysprosium. The additive manufacturing process produces complex shapes with nearly zero material waste.
A team of researchers invented a new soap molecule made from natural products like soybeans, coconut, and corn that works better than conventional soaps in challenging conditions. The technology has the potential to simplify ingredient lists and reduce environmental harm in cleaning products.
Researchers at Washington State University have developed a new catalyst that efficiently produces hydrogen from water, a crucial step in making renewable energy production and storage viable. The catalyst, made from low-cost materials, outperforms precious metal-based catalysts used today.
A new study by the University of Missouri identifies effective ways for states to partner and share resources to boost renewable energy production through woody biomass. By working together, states can maximize energy output and reduce carbon emissions, providing policymakers with flexible options for meeting emission reduction targets.
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.
University of Wisconsin-Madison engineers create a cost-effective method to harness footstep energy using wood pulp cellulose nanofibers. The technology has the potential to rival solar power and provide renewable energy even on cloudy days.
Researchers at NREL discovered a method to stabilize an all-inorganic perovskite material at room temperature, increasing its stability and efficiency. The new solar cells convert sunlight into electricity with 10.77 percent efficiency, surpassing other reported all-inorganic perovskite solar cells.
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.
A group of international researchers from nine countries calls for a grand challenges strategy to set global priorities for developing renewable energy. The proposed approach is modeled on the successful efforts to combat neglected diseases, with an emphasis on big thinking, multidisciplinary approaches and supportive policies.
Researchers at OIST have made significant breakthroughs in perovskite solar cells, improving efficiency, stability, and scalability. New post-annealing treatments and manufacturing methods have increased conversion efficiency to 18.4%, while discovering new decomposition products has led to the development of more stable materials.
Researchers have developed a polyphenyline membrane that operates at temperatures between 176-320 degrees F, lasting three times longer than comparable commercial products. The membrane uses ammonium ion pairs to enhance stability and resist degradation, making it suitable for automotive applications.
Scientists at NREL found that perovskites could have great potential for optoelectronic applications beyond photovoltaics, including in quantum computing. The discovery was made by accident while investigating excitons in perovskites and demonstrates the optical Stark effect's promise as an ultrafast optical switch.
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.
A novel method has been developed to yield lower-cost, higher-efficiency systems for water heating in residential buildings. The new 'semi-open' natural gas-fired design streamlines traditional closed gas-fired systems by eliminating certain components.
Researchers at NREL and Shanghai Jiao Tong University develop a method to treat perovskite films with MABr solution, repairing defects and improving efficiency. The new approach boosts the efficiency of perovskite solar cells to up to 19% and demonstrates improved reproducibility.
The US government aims to cut greenhouse gas emissions from light-duty vehicles by 80% by 2050, but current approaches may not be enough. NREL research suggests that a combination of electric and hydrogen fuel cell vehicles, vehicle connectivity, and automation could significantly reduce emissions.
Synaptec, a spinout from the University of Strathclyde, has secured £370,000 investment to boost its renewable energy and subsea operations. The funding will enable the company to hire new staff and broaden its capabilities in areas such as subsea development and renewable energy.
The project aims to further accelerate progress toward the SunShot goals through research and development of novel solar collectors using reflective surfaces to concentrate sunlight. Giant Leap Technologies will develop capillary optics to replace expensive mechanical sun trackers with low-cost digital-glass for solar thermal and photo...
The US Energy Department has granted $2.5 million to Texas A&M AgriLife Research to explore ways to use biorefinery waste to produce marketable products, including bioplastics. The study aims to make biorefineries economically viable and sustainable.
A new tool developed at PNNL estimates greenhouse gas and emission reductions from smart grid investments, providing insights for utilities and industry to justify investments. The Emissions Quantification Tool considers various factors, including electric vehicle charging schedules, battery-stored energy, and solar generation integrat...
A research group has made progress in obtaining bio-oils and raw materials from biomass using its patented reactor. Artificial neural networks are being used to calculate the gross calorific value of biomass, which is essential for designing and improving biomass pyrolysis, gasification, and combustion systems.