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.
Europe's renewable energy directive poised to harm global forests, experts argue
12 Sep 2018 at 5:12am
Europe's decision to promote the use of wood as a 'renewable fuel' will likely greatly increase Europe's greenhouse gas emissions and cause severe harm to the world's forests, according to a new paper.
Barriers and opportunities in renewable biofuels production
11 Sep 2018 at 8:02am
Researchers have identified two main challenges for renewable biofuel production from cheap sources. First, lowering the cost of developing microbial cell factories, and second, establishing more efficient methods for hydrolysis of biomass to sugars for fermentation.
Cover the U.S. In 89 percent trees, or go solar
7 Sep 2018 at 6:15am
Researchers found that using bio-sequestration to capture carbon produced by US coal-fired plants even after carbon capture and storage would require using 62 percent of the nation's arable land for that process, or 89 percent of all US land with average forest cover. In comparison, offsetting the amount of carbon produced by manufacturing solar panels is 13 times less land, making it a far more viable option.
Large wind and solar farms in the Sahara would increase heat, rain, vegetation
6 Sep 2018 at 11:16am
Wind and solar farms are known to have local effects on heat, humidity and other factors that may be beneficial -- or detrimental -- to the regions in which they are situated. A new climate-modeling study finds that a massive wind and solar installation in the Sahara Desert and neighboring Sahel would increase local temperature, precipitation and vegetation. Overall, the researchers report, the effects would likely benefit the region.
Adding power choices reduces cost and risk of carbon-free electricity
6 Sep 2018 at 11:11am
Researchers find that including a variety of zero-carbon power sources is a more cost effective way of lowering greenhouse gas emissions than relying solely on solar, wind, and batteries.
Renewable energy sources: All-in-one light-driven water splitting
6 Sep 2018 at 7:04am
Solar-powered water splitting is a promising means of generating clean and storable energy. A novel catalyst based on semiconductor nanoparticles has now been shown to facilitate all the reactions needed for 'artificial photosynthesis'.
Pros and cons of hydropower
6 Sep 2018 at 5:20am
Hydropower can generate electricity without emitting greenhouse gases but can cause environmental and social harms, such as damaged wildlife habitat, impaired water quality, impeded fish migration, reduced sediment transport, and diminished cultural and recreation benefits of rivers. A new River Research and Applications study considers these issues as they relate to a hydropower project undergoing relicensing in California.
Physics model acts as an 'EKG' for solar panel health
5 Sep 2018 at 11:02am
Researchers have created an algorithm using the physics of panel degradation that can analyze solar farm data from anywhere, essentially as a portable EKG for solar farms.
Wind turbines: How much power can they provide?
5 Sep 2018 at 9:47am
Wind turbines could cover 40 percent of the current electricity consumption in Germany.
Satellites more at risk from fast solar wind than a major space storm
4 Sep 2018 at 7:32am
Satellites are more likely to be at risk from high-speed solar wind than a major geomagnetic storm according to a new study.
Changing the type of silicon etching drops solar power costs by more than 10 ...
4 Sep 2018 at 6:38am
Researchers have found that using dry etched black silicon for passive emitter rear cell (PERC) solar cells increases the cost of individual cell production by 15.8 percent to 25.1 percent, but reduces the cost per unit power by 10.8 percent over those for industrial Czochralski silicon.
Scientists pioneer a new way to turn sunlight into fuel
3 Sep 2018 at 8:33am
A new study used semi-artificial photosynthesis to explore new ways to produce and store solar energy. They used natural sunlight to convert water into hydrogen and oxygen using a mixture of biological components and human-made technologies.
A new way to remove ice buildup without power or chemicals
31 Aug 2018 at 12:01pm
Researchers have found a way to prevent icing of powerlines, airplanes, wind turbines, and other surfaces with a special coating and the power of sunlight -- no heating or harsh chemicals needed.
Introducing high-performance non-fullerene organic solar cells
30 Aug 2018 at 6:54am
An team of researchers has introduced a novel method that can solve issues associated with the thickness of the photoactive layers in OSCs.
Air pollution can put a dent in solar power
29 Aug 2018 at 8:55am
Air pollution, especially in urban areas, can significantly reduce the power output from solar panels, and needs to be considered when design solar installations in or near cities.