Articles tagged with Renewable Energy
A new anode design for lithium-sulfur batteries quadruples their lifespan, bringing them closer to commercial use. The hybrid anode's development could enable longer electric car drives and cheaper storage of renewable wind energy.
A new type of battery that could transform grid-scale energy storage, making power from renewables more economical and reliable. The innovative technology relies on naturally abundant, inexpensive quinone molecules, which are similar to those found in plants and animals.
Researchers at NREL have discovered a new cellulose digestion mechanism using the fast-eating enzyme CelA, which outperforms commercial preparations by producing more sugars and creating cavities in cellulose for greater synergy. The discovery has important implications for industry and could lead to lower costs for biofuels production.
Dr. Ben Kroposki, NREL director of Energy Systems Integration, named an IEEE Fellow for his leadership in renewable energy systems integration. NREL analysts also received honors for their work on energy-efficient computing and data sharing.
Researchers have observed the rapid formation and separation of charges in organic nanostructures, governed by quantum mechanics. This discovery takes them closer to mimicking photosynthesis and developing efficient organic solar cells.
Two NREL reports show that soft costs, including financing and installation costs, now account for up to 64% of the total price of residential solar energy systems. Researchers found that supply chain costs, labor, customer acquisition, and corporate costs are among the largest contributors to these costs.
A study by PNNL researchers found that highly insulating windows reduce energy consumption by 12.2% in a home setting. However, the high upfront cost takes anywhere from 23 to 55 years to pay off, making comfort and other benefits more immediate.
The NREL Building Agent application allows facility managers to diagnose and adjust for problems based on direct occupant comfort feedback. This integration enables a more active role for occupants in comfort and energy trade-offs, leading to improved building performance and cost savings.
The 2012 Renewable Energy Data Book reports a significant increase in US renewable electricity capacity, with installed capacity over 163 GW and renewables accounting for 56% of new electrical capacity installations. Wind and solar PV were among the fastest-growing electric generation technologies.
Researchers found that harvesting invasive plants for biofuels is hindered by high costs, lack of specialized equipment, and variable cell wall composition. Despite this, alternative uses for invasive biomass, such as combustion for electricity, may offer a more practical solution.
The Alternative Fueling Station Locator App allows iPhone users to select an alternative fuel and find the closest stations within a 30-mile radius. The app draws information from the Clean Cities' Alternative Fuels Data Center, containing over 15,000 alternative fueling stations nationwide.
The SAPC working group has developed three standard contract templates for residential and commercial solar power projects, with the goal of increasing consumer transparency and private-sector investment. The contracts cover residential leases and commercial power purchase agreements, allowing developers to increase business opportunit...
NREL will develop a new low-cost flow battery using organic energy storage materials to overcome limitations of current flow batteries. The goal is to increase energy density and reduce cost, enabling widespread adoption of electric vehicles.
Santiago Grijalva, NREL's new director of the Power Systems Engineering Center, will establish and direct the NREL's grid research portfolio at ESIF. He champions an Internet of the Grid, envisioning millions of decision-makers managing the electric grid.
Scientists at PNNL found that new rooftop units reduce energy costs by 41% compared to current units. If widely adopted, these devices could idle eight average-size coal-fired power plants in a year.
Researchers at Brookhaven National Laboratory discovered two key genes required for oil production and accumulation in plant leaves. Overexpressing these genes resulted in a significant increase in leaf oil production, with the potential to boost energy content of biofuels and plant-based foods.
A new study from the University of Illinois researchers suggests that the Renewable Fuel Standard should be modified, not repealed. The RFS mandates ought to be adjusted to reflect current and predicted biofuel commercialization realities.
The US Department of Energy has launched guidelines for home energy professionals, including standard work specifications and professional certifications. The new standards aim to improve the quality of weatherization services and provide better career paths for workers.
The report identifies strategies to overcome market barriers and decrease soft-costs in four key areas: customer acquisition, permitting, inspection, and interconnection, installation labor, and financing. NREL aims to reduce residential solar costs by $0.65/W and commercial solar costs by $0.44/W by 2020.
The study finds that high levels of wind and solar power reduce fossil fuel costs by $7 billion per year, while incurring cycling costs of $35 million to $157 million. Cycling increases operations and maintenance costs by $0.47 to $1.28 per megawatt-hour of generation.
The Hydrogen Tools app offers a range of resources and web-based content to help users design, approve, or use hydrogen fuel cell systems and facilities. Key findings include guidance on ventilation, storage, and safety procedures for hydrogen, as well as best practices for handling the gas.
A new report from NREL and MIT reveals that China's dominance in solar manufacturing is largely due to its production scale advantages, including access to capital and supply chain benefits. The study suggests that these advantages can be replicated in the US with innovative technology and scale-up.
The food industry is embracing sustainable packaging, but challenges remain in developing materials that are recyclable, compostable, renewable energy-produced or edible. Despite progress, structural integrity and water/oxygen barriers pose significant hurdles for edible packaging.
A study by Stanford University researchers found that grid-scale batteries make sense for storing surplus solar energy, but not for wind. This is because the energetic cost of storing wind-generated electricity is lower than curtailment, making it more energetically efficient to shut down wind turbines.
Researchers have developed a measurement tool to assess market power in deregulated electricity markets, taking into account emerging smart grid phenomena. The tool, called transmission constrained network flow, unifies existing measures and provides a unified view of market power potential under varying operating conditions.
The report identifies substantial opportunities for reducing greenhouse gas emissions and conserving scarce water resources by generating renewable energy. It highlights the potential for water sector innovation to increase renewable energy capacity, particularly in states like California.
Researchers developed yeast strains that efficiently produce bio-ethanol from waste, overcoming previous limitations. The new strains have unprecedented efficiency and robustness, making them suitable for industrial fermentation processes.
A new NREL study indicates that wind and solar power electricity generation could become cost-competitive with natural gas by 2025 in certain regions of the West. The report identifies areas where renewable energy development is likely to occur, including Wyoming, New Mexico, Montana, and Idaho.
A new analysis suggests that Greece's renewable energy programs, particularly solar, could lower domestic energy costs and provide an export commodity to aid in the country's economic recovery. However, addressing public concerns about foreign involvement is crucial for realizing solar's potential.
The collaboration aims to convert sugar cane bagasse into fuel ethanol, enabling year-round operations and reducing greenhouse gas emissions. NREL's expertise in biomass conversion technology will help optimize the process and make it economically viable.
Researchers found that topological insulators behave asymmetrically at the sub-atomic level, which could lead to significant improvements in energy efficiency for quantum computers. The discovery was made using first-principles calculations and observations taken at the Advanced Light Source.
A new strategy known as "low-temperature combustion" (LTC) might lead to broader use of cleaner diesel engines in the US. LTC reduces NOx and smoke emissions by recirculating exhaust gases and spraying fuel earlier in the engine cycle.
A new NREL report provides detailed land-use data for solar power plants, showing that a large fixed tilt photovoltaic plant requires an average of 2.8 acres for solar panels to generate 1 gigawatt-hour per year. The study found that small single-axis PV systems require on average 2.9 acres per annual gigawatt-hour, while concentrating...
The new device achieves a conversion rate of 7.3%, nearly double the original 4% rate, due to its two-layer design and novel materials. Researchers envision solar-powered windows and smartphone displays that can generate energy while maintaining transparency.
Ellen Anderson, a champion of sustainability and environmental policy, will receive the ESA Regional Policy Award. She has promoted renewable energy, clean water, and parks, and works on clean energy and public outreach for the Governor's office.
The US Department of Energy has commissioned the Scaled Wind Farm Technology (SWiFT) facility to investigate and develop technology for wind plants. The facility will host research on improving wind plant performance, with a focus on reducing energy losses due to complex wind interactions.
NREL's innovations in solar, vehicles and energy efficiency have earned three prestigious R&D 100 Awards. The Image Processing Occupancy Sensor (IPOS) detects heat loss in electric-vehicle batteries with greater accuracy, while high-efficiency silicon solar cells offer improved conversion rates.
Researchers at NREL developed a tandem cell with a gallium indium phosphide cell atop a gallium arsenide cell, achieving the new record efficiency of 31.1%. This improvement enhances photon recycling and luminescent coupling in the lower bandgap junction.
The Energy Systems Integration Facility (ESIF) is a new research center that aims to boost clean energy technologies on a smarter grid. The facility will house experimental laboratories and outdoor test beds, including a petascale supercomputer, to support large-scale modeling and simulation. Advanced Energy Industries has already sign...
Researchers discovered novel cellulose-degrading enzymes in marine wood borer gribbles, which can thrive in industrial settings. The enzymes hold promise of efficiently breaking down biomass into sugars for biofuel production.
Researchers at the Department of Energy's Pacific Northwest National Laboratory have developed a single advanced building control that can customize fan speed to actual need, resulting in an 18% slash in energy demand. The technology has the potential to save tens of thousands of dollars annually for large office buildings.
The project aims to demonstrate the feasibility of converting switchgrass into jet fuel economically and in large quantities. The process is expected to result in a 95% reduction in greenhouse gas emissions compared to current production methods.
A new EBI study concludes that biofuels from plant biomass and purpose-grown crops can substantially reduce greenhouse gas emissions in California. The report highlights the importance of judicious use of feedstocks and implementation of low-carbon technologies to meet the state's ambitious energy goals.
The U.S. Department of Energy's National Renewable Energy Laboratory (NREL) hosted a car competition for 97 Colorado schools, with teams racing solar and lithium ion powered vehicles designed and built by students. The 'Sweet and Sassy' team from Woodlands Academy took top honors in the solar design category.
Saudi Arabia is working with the US Department of Energy's National Renewable Energy Laboratory (NREL) to set up networks for measuring solar radiation in varying meteorological conditions. The partnership aims to train Saudi engineers and install over 50 monitoring stations to gauge the best spots for solar power plants.
The grant aims to improve solar energy system efficiency and reduce costs in West Michigan. Researchers will collect data on residential and commercial solar installations to better understand the region's unique conditions.
The article discusses the need for sustainable bioenergy crops by setting a standard. The first precondition is good governance, including environmental groups, to achieve public acceptance. The second precondition is to fortify the producer's sustainability toolbox, including effective tools and baselines. The third precondition is in...
Researchers found that two enzyme paradigms - free and complexed enzymes - use different mechanisms to degrade biomass at the nanometer scale. Combining these systems enhances catalytic performance, suggesting an optimal strategy may already exist.
Researchers from NREL evaluated CSP systems with thermal energy storage within the CAISO system to estimate operational factors such as fuel cost, emissions, and reliability. The analysis found significant value in dispatchable CSP, particularly when providing reserve power, which can be turned on or off during high or low demand periods.
Research Fellows Mike Himmel and David Ginley honored for innovation impacts in energy systems integration and commercialization of NREL technologies. NREL has added 29 new CRADAs, attracting $8 in private investment for every dollar invested.
A recent NREL survey found that 95% of 100% biodiesel (B100) samples met ASTM International fuel quality specifications, representing a dramatic improvement from previous years. The increase is attributed to stricter quality requirements and the voluntary BQ-9000 quality management program.
Thin film solar cells can be removed from a silicon substrate by dipping them in water at room temperature. The cells can then attach to almost any surface after exposure to heat of about 90°C for a few seconds.
Scientists have demonstrated a process where quantum dots can self-assemble at optimal locations in nanowires, improving the efficiency of solar cells, quantum computing, and lighting devices. The breakthrough enables precise positioning of quantum dots relative to the nanowire's center, leading to high optical properties.
A team of researchers from the University of Bristol and the University of Bern studied the investment strategies of dominant pairs in a species of cichlid fish. They found that removing large helpers for 30 days allowed dominants to reduce their territorial duties, with new helpers taking over after seven days.
NREL employees Debbie Lew, Greg Brinkman, Maureen Hand, Trieu Mai, and Brian Parsons were awarded for their contributions to wind and solar integration studies. The Utility Variable-Generation Integration Group recognized their work on grid operations with high renewable power shares.
The US Department of Energy's National Renewable Energy Laboratory (NREL) has launched an initiative to build an open-source database of real-world performance from solar facilities. The Open Solar Performance and Reliability Clearinghouse (O-SPaRC) aims to provide critical data on the long-term performance of residential and commercia...
Researchers at Berkeley Lab released a guide on planning and financing comprehensive energy upgrades for K-12 schools. The guide covers different financing approaches and contains case studies of successful projects, highlighting the benefits of energy efficiency upgrades in reducing costs and improving student learning environments.
Researchers at the University of Calgary have developed a new, affordable catalyst for converting electricity into chemical energy, enabling the efficient storage and reuse of solar and wind power. The breakthrough technology has the potential to support a large-scale clean energy economy.
The Solar Access to Public Capital (SAPC) working group aims to standardize power purchase agreements and develop robust datasets to assess performance and credit-default risk. This effort is expected to attract additional investors to the solar asset class, potentially lowering the cost of solar energy.
A collaborative study between NREL and ANL identifies strategies to reduce petroleum use and greenhouse gas emissions in the transportation sector by 80% by 2050. The study reveals opportunities for energy efficiency improvements, increased use of electricity and hydrogen, and expanded biofuels.