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.
Computer models show clear advantages in new types of wind turbines
16 Oct 2019 at 9:45am
Researchers have modeled the fluid dynamics of multi-rotor wind turbines via high-resolution numerical simulations. The simulations demonstrate a clear advantage for a turbine model with four rotors. The researchers found, that the wind turbine wake recovers much faster with multi-rotor turbines, that multi-rotor turbines produce slightly more energy than single-rotor turbines, and that a turbine with four rotors as far apart as possible is the optimal construction.
Distribution of highly radioactive microparticles in Fukushima revealed
16 Oct 2019 at 8:11am
New method allows scientists to create a quantitative map of radioactive cesium-rich microparticle distribution in soils collected around the damaged Fukushima Daiichi Nuclear Power Plant Nuclear Power Plant (FDNPP). This could help inform clean-up efforts in Fuksuhima region.
A new concept could make more environmentally friendly batteries possible
30 Sep 2019 at 5:22am
A new concept for an aluminium battery has twice the energy density as previous versions, is made of abundant materials, and could lead to reduced production costs and environmental impact. The idea has potential for large scale applications, including storage of solar and wind energy.
Model helps choose wind farm locations, predicts output
24 Sep 2019 at 12:13pm
The wind is always blowing somewhere, but deciding where to locate a wind farm is a bit more complicated than holding up a wet finger. Now a team of researchers has a model that can locate the best place for the wind farm and even help with 24-hour predictions of energy output.
New standard of reference for assessing solar forecast proposed
24 Sep 2019 at 8:21am
Being able to accurately forecast how much solar energy reaches the surface of the Earth is key to guiding decisions for running solar power plants and new work looks to provide a standard of reference to the field. A researcher proposes an improved way to assess day-ahead solar forecasting, which combines two popular reference methods for weather forecasting, namely persistence and climatology. His approach provides a new way to gauge the skill of a forecaster.
New report deepens understanding of wind-wildlife interactions
23 Sep 2019 at 11:08am
An increase in the generation of wind energy is a key component of the U.S. strategy to reduce carbon emissions from the power sector. Approximately 97 gigawatts of wind energy production capacity are currently installed in the U.S., and in 2018, wind energy supplied about 6.5% of the nation's electricity. Scenarios developed by various groups, including U.S. Department of Energy, indicate that a four- to five-fold expansion over current levels of electricity produced by wind is needed by the year 2050 to help meet U.S. carbon emission reduction goals.
Lighting the path to renewable energy
19 Sep 2019 at 6:39am
Scientists have developed a novel, standardized way of quantifying and comparing these variations in solar power. The new study may help guide the development and performance of solar photovoltaic farms -- systems that harness the sun's energy and convert it to electricity.
Cutting emissions gradually will avert sudden jump in warming
18 Sep 2019 at 1:16pm
Steadily reducing fossil fuel emissions over coming years will prevent millions of premature deaths and help avoid the worst of climate change without causing a large spike in short-term warming that some studies predict, new analysis from finds. The finding dispels the misconception that the air-quality and climate benefits of transitioning to clean energy play out at different timescales -- a sticking point in recent climate negotiations.
Welcome indoors, solar cells
16 Sep 2019 at 7:19am
Scientists have developed organic solar cells optimized to convert ambient indoor light to electricity. The power they produce is low, but is probably enough to feed the millions of products that the internet of things will bring online.
Researchers design a roadmap for hydrogen supply network
12 Sep 2019 at 9:48am
Researchers have developed a hydrogen supply chain model that can enable the adoption of zero-emission, hydrogen-powered cars -- transforming them from a novelty into everyday transportation in just 30 years.
How much photovoltaics (PV) would be needed to power the world sustainably?
11 Sep 2019 at 7:15am
The International Energy Agency has dubbed increased global cooling demand as one of the most critical blind spots in today's energy debate.
Colorful microreactors utilize sunlight
10 Sep 2019 at 7:53am
The sun is the most sustainable energy source available on our planet and could be used to power photochemical reactions. Scientists now present a widely applicable, cost-effective photomicroreactor. It is based on ''Luminescent Solar Concentrators'', which harvest, convert, and make photons available for chemical reactions. Thus, the researchers were able to synthesize various substances, including two pharmaceuticals.
Reactor turns greenhouse gas into pure liquid fuel
3 Sep 2019 at 5:40am
An electrocatalysis reactor built at Rice University recycles carbon dioxide to produce pure liquid fuel solutions using electricity. The scientists behind the invention hope it will become an efficient and profitable way to reuse the greenhouse gas and keep it out of the atmosphere.
Would a carbon tax help to innovate more-efficient energy use?
27 Aug 2019 at 8:11am
Taxing carbon emissions would drive innovation and lead to improved energy efficiency, according to a new article.
Laser printing tech produces waterproof e-textiles in minutes
27 Aug 2019 at 7:16am
In just three minutes, the laser printing approach can produce a 10x10 cm smart textile patch that's waterproof, stretchable and easily integrated with solar or other sources of power.