Renewable Energy News -- ScienceDaily
Renewable Energy Sources. Read the latest research on renewable sources of energy such as solar energy, wind power, nuclear energy, hydrogen fuel, ethanol, methane and other alternative energy sources.
Highly efficient and stable double layer solar cell developed
27 Mar 2020 at 7:30am
A research team has developed a new type of solar cell that can both withstand environmental hazards and is 26.7% efficient in power conversion.
Longer lives not dependent on increased energy use
26 Mar 2020 at 4:39pm
Growing consumption of energy and fossil fuels over four decades did not play a significant role in increasing life expectancy across 70 countries. New research has quantified the importance of different development factors to improvements in physical health on an international scale.
Concrete solutions that lower both emissions and air pollution
23 Mar 2020 at 10:24am
Some common strategies to reduce the greenhouse gas emissions of concrete production could have unintended consequences for local air pollution and related health damages, according to a new study.
Shedding light on optimal materials for harvesting sunlight underwater
18 Mar 2020 at 11:37am
There may be many overlooked organic and inorganic materials that could be used to harness sunlight underwater and efficiently power autonomous submersible vehicles, report researchers. New research develops guidelines for optimal band gap values at a range of watery depths, demonstrating that various wide-band gap semiconductors, rather than the narrow-band semiconductors used in traditional silicon solar cells, are best equipped for underwater use.
Boosting stability of perovskites helps silicon solar cells
10 Mar 2020 at 8:47am
A change in chemical composition enabled scientists to boost the longevity and efficiency of a perovskite solar cell.
Ultrathin organic solar cell is both efficient and durable
9 Mar 2020 at 12:20pm
Scientists have succeeded in creating an ultrathin organic solar cell that is both highly efficient and durable. Using a simple post-annealing process, they created a flexible organic cell that degrades by less than 5% over 3,000 hours in atmospheric conditions and that simultaneously has an energy conversion ratio -- a key indicator of solar cell performance -- of 13%.
Water splitting advance holds promise for affordable renewable energy
9 Mar 2020 at 10:00am
A team has developed a less expensive water electrolysis system that works under alkaline conditions but still produces hydrogen at comparable rates to the currently used system that works under acidic conditions and requires precious metals. This advance brings down the cost of water splitting technology, offering a more viable way to store energy from solar and wind power in the form of hydrogen fuel.
Layered solar cell technology boosts efficiency, affordability
6 Mar 2020 at 3:31pm
Researchers have created a low-cost solar cell with one of the highest power-conversion efficiencies to date, by layering cells and using a unique combination of elements.
Light to electricity: New multi-material solar cells set new efficiency standard
5 Mar 2020 at 5:35pm
Researchers have overcome a key obstacle in combining the emerging solar-harvesting technology of perovskites with the commercial gold standard -- silicon solar cells. The result is a highly efficient and stable tandem solar cell, one of the best-performing reported to date.
Exciting tweaks for organic solar cells
5 Mar 2020 at 10:22am
A molecular tweak has improved organic solar cell performance, bringing us closer to cheaper, efficient, and more easily manufactured photovoltaics. The new design approach targets the molecular backbone of the cell's power-generating layer.
New method converts carbon dioxide to methane at low temperatures
27 Feb 2020 at 8:45am
Scientists developed a new method to convert carbon dioxide to methane with an electric field at low temperatures. In comparison to previous methods, this new method can produce any amount of methane whenever necessary. Because methane is a valuable gas which can be used to generate heat and electricity, this method could be exploited to help reduce the use of fossil fuels and prevent global warming.
Eco-friendly biodiesel from palm oil?
27 Feb 2020 at 8:45am
Vegetable oil biofuels are increasingly used as an alternative to fossil fuels despite the growing controversy regarding their sustainability. In a study, researchers investigated the effect of palm-oil biodiesel on greenhouse gases for the entire life cycle. They found that using palm oil from first rotation plantations where forests were cleared for palms leads to an increase in greenhouse gas emissions compared to fossil fuels.
Motley crew: Rust and light a possible answer to the conundrum of hydrogen fu...
26 Feb 2020 at 10:13am
Production of hydrogen fuel is a key goal towards the development of sustainable energy practices, but this process does not have feasible techniques yet. Scientists have identified a novel technique of using rust and light to speed up hydrogen production from organic waste solution, a finding that can revolutionize the clean energy industry.
Perovskite solar cells made with peppermint oil and walnut aroma food additiv...
26 Feb 2020 at 7:21am
Engineers have developed eco-friendly-solvent processable hole transport polymers by using peppermint oil and walnut aroma food additives and the polymer can prevent lead leakage.
What to expect when you're expecting electric transportation
25 Feb 2020 at 7:13am
While electric vehicles alone may not reduce carbon emissions, a new study reveals that when electric vehicles are powered with renewable energy and coupled with carbon policy strategies, they can help combat climate change without sacrificing economic growth.