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.
Experts' predictions for future wind energy costs drop significantly
15 Apr 2021 at 8:41am
Technology and commercial advancements are expected to continue to drive down the cost of wind energy, according to a new survey. Experts anticipate cost reductions of 17%-35% by 2035 and 37%-49% by 2050, driven by bigger and more efficient turbines, lower capital and operating costs, and other advancements.
Transparent nanolayers for more solar power
15 Apr 2021 at 8:41am
There is no cheaper way to generate electricity today than with the sun. Solar cells available on the market based on crystalline silicon make this possible with efficiencies of up to 23 percent. With even higher efficiencies of more than 26 percent, costs could fall further. An international working group led by photovoltaics researchers now plan to reach this goal with a nanostructured, transparent material for the front of solar cells.
Solar and wind power could mitigate conflict in northeast Africa
8 Apr 2021 at 10:14am
A new study shows that several disagreements between Ethiopia, Sudan and Egypt around Africa's largest hydropower plant, the new Grand Ethiopian Renaissance Dam (GERD), could be alleviated by massively expanding solar and wind power across the region.
Carbon dots from human hair boost solar cells
8 Apr 2021 at 8:24am
Researchers have used carbon dots, created from human hair waste sourced from a barbershop, to create a kind of 'armor' to improve the performance of cutting-edge solar technology.
Carbon-neutral 'biofuel' from lakes
31 Mar 2021 at 7:36am
Lakes store huge amounts of methane. In a new study, environmental scientists offer suggestions for how it can be extracted and used as an energy source in the form of methanol.
Researchers harvest energy from radio waves to power wearable devices
25 Mar 2021 at 4:02pm
From microwave ovens to Wi-Fi connections, the radio waves that permeate the environment are not just signals of energy consumed but are also sources of energy themselves. An international team of researchers has developed a way to harvest energy from radio waves to power wearable devices.
How improving acoustic monitoring of bats could help protecting biodiversity
25 Mar 2021 at 7:12am
In order to assess the risk of bats dying at wind turbines, it is common practice to record the acoustic activity of bats within the operating range of the rotor blades. In a recent analysis, a team of scientists concludes that the effectiveness of this acoustic monitoring is insufficient to reliably predict mortality risk, especially for bats at large turbines.
Dow-like index for energy prices might help smooth transition to clean power
24 Mar 2021 at 8:33am
Since the early industrial revolution in the mid-1700s, fossil fuels have acquired an ever-growing footprint in energy production. However, the environmental concerns of fossil fuels use and their inevitable depletion have led to a global shift toward renewable energy sources. These transitions, however, raise questions about the best choice of renewables and the impact of investing in these resources on consumer cost.
Scientists improve a photosynthetic enzyme by adding fluorophores
24 Mar 2021 at 6:46am
To realize the full potential of solar energy, scientists must find efficient ways of converting light energy into chemical energy. Scientists have developed a chemically modified variant of a photosynthetic enzyme sourced from a bacterium. Their modifications enabled the enzyme to more efficiently harvest the energy available in light, which is an important advancement in the development of clean solar energy.
New porous material promising for making renewable energy from water
22 Mar 2021 at 8:29am
One prospective source of renewable energy is hydrogen gas produced from water with the aid of sunlight. Researchers have developed a material, nanoporous cubic silicon carbide, that exhibits promising properties to capture solar energy and split water for hydrogen gas production.
New perovskite fabrication method for solar cells paves way to large-scale pr...
18 Mar 2021 at 11:25am
A new, simpler solution process for fabricating stable perovskite solar cells overcomes the key bottleneck to large-scale production and commercialization of this promising renewable-energy technology, which has remained tantalizingly out of reach for more than a decade.
Double-duty catalyst generates hydrogen fuel while cleaning up wastewater
17 Mar 2021 at 11:17am
Hydrogen is a pollution-free energy source when it's extracted from water using sunlight instead of fossil fuels. But current strategies for 'splitting' or breaking apart water molecules with catalysts and light require the introduction of chemical additives to expedite the process. Now, researchers have developed a catalyst that destroys medications and other compounds already present in wastewater to generate hydrogen fuel, getting rid of a contaminant while producing something useful.
Plants would grow well in solar cell greenhouses
17 Mar 2021 at 8:18am
A recent study shows that lettuce can be grown in greenhouses that filter out wavelengths of light used to generate solar power, demonstrating the feasibility of using see-through solar panels in greenhouses to generate electricity.
Novel system sequesters CO2 and generates electricity
17 Mar 2021 at 6:47am
A recent study has unveiled a novel system, capable of producing hydrogen and electricity quickly and effectively while cutting carbon dioxide emissions significantly.
Whooping cranes steer clear of wind turbines when selecting stopover sites
11 Mar 2021 at 3:59pm
An article reports that whooping cranes migrating through the U.S. Great Plains avoid 'rest stop' sites that are within 5 km of wind-energy infrastructure.