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.
Historic space weather could clarify what's next
13 Aug 2018 at 8:33am
Scientists have discovered an underlying repeatable pattern in how space weather activity changes with the solar cycle - having analysed solar activity for the last half century.
Converting carbon dioxide into methane or ethane selectively
13 Aug 2018 at 7:02am
Researchers have developed high-efficiency photocatalysts that convert carbon dioxide into methane or ethane with graphene-covered reduced titanium dioxide. The finding is expected to be utilized in the carbon dioxide reduction and recycling industries.
Insight into loss processes in perovskite solar cells enables efficiency impr...
1 Aug 2018 at 8:52am
In perovskite solar cells, charge carriers are mainly lost through recombination occurring at interface defect sites. In contrast, recombination at defect sites within the perovskite layer does not limit the performance of the solar cells at present. Teams from the University of Potsdam and the Helmholtz-Zentrum Berlin (HZB) were able to reach this interesting conclusion through extremely accurate quantitative measurements on 1 cm2 perovskite cells using photoluminescence.
Silicon-based, tandem photovoltaic modules can compete in solar market
30 Jul 2018 at 9:03am
The dominant existing solar technology -- silicon -- is more than 90 percent of the way to its theoretical efficiency limit. More efficient technologies will be more expensive. New research identifies the efficiency vs. cost target.
Technique to easily fabricate ceramic films used as OPV inter-layers developed
26 Jul 2018 at 1:20pm
Researchers developed a technique for coating Zinc related oxide (ZnOx, ZnOHx) simply by depositing the films in a solution process using the Metal Organic Decomposition method at ambient temperature and pressure without heating. They also demonstrated that their thin films produced by this technique were useful as buffer layers for OPV cells and that the films achieved a power conversion efficiency equivalent to that of ZnO thin films produced by conventional methods involving sintering.
And then there was (more) light: Researchers boost performance quality of per...
26 Jul 2018 at 1:19pm
Scientists report that a prototype semiconductor thin-film has performed even better than today's best solar cell materials at emitting light.
Europe may thrive on renewable energy despite unpredictable weather
26 Jul 2018 at 1:12pm
Researchers have shown how long-term weather patterns affect wind and solar renewable energy technologies across Europe. The work suggests that despite the unpredictable nature of wind and solar energy, the European power system can comfortably generate at least 35 percent of its electricity using these renewables alone without major impacts on prices or system stability.
A new catalyst for water splitting that is the best of both worlds
26 Jul 2018 at 6:03am
Taking water and ripping it apart into hydrogen and oxygen could form the basis of artificial photosynthetic devices that could ultimately power homes and businesses. However, catalysts, including those used to 'split' water, have either worked well but are expensive and unstable, or are affordable and stable, but don't work as well. Now, researchers report a new catalyst that is really the best of both worlds.
States boost renewable energy and development when utilities adopt renewable ...
23 Jul 2018 at 11:28am
States that require utilities to increase renewable energy see expansion of renewable energy facilities and generation -- including wind and other renewable sources, but especially solar -- according to new research.
New battery could store wind and solar electricity affordably and at room tem...
19 Jul 2018 at 1:50pm
A new type of flow battery that involves a liquid metal more than doubled the maximum voltage of conventional flow batteries and could lead to affordable storage of renewable power.
Feeding plants to this algae could fuel your car
18 Jul 2018 at 7:48am
The research shows that a freshwater production strain of microalgae, Auxenochlorella protothecoides, is capable of directly degrading and utilizing non-food plant substrates, such as switchgrass, for improved cell growth and lipid productivity, useful for boosting the algae's potential value as a biofuel.
How to build efficient organic solar cells
16 Jul 2018 at 8:45am
Twenty-five researchers from seven research institutes have put their heads together to draw up rules for designing high-efficiency organic solar cells.
New tool to calculate 'nitrogen footprint' offers guide to pollution reduction
16 Jul 2018 at 7:31am
Researchers have helped create the first tool to calculate the 'nitrogen footprint' of an organization. The tool will provide a guide to sustainability and pollution reduction for daily activities such as food consumption, travel and energy use.
How gold nanoparticles could improve solar energy storage
12 Jul 2018 at 8:45am
Star-shaped gold nanoparticles, coated with a semiconductor, can produce hydrogen from water over four times more efficiently than other methods - opening the door to improved storage of solar energy and other advances that could boost renewable energy use and combat climate change, according to researchers.
Bacteria-powered solar cell converts light to energy, even under overcast skies
5 Jul 2018 at 5:42am
Researchers have found a cheap, sustainable way to build a solar cell using bacteria that convert light to energy. Their cell generated a current stronger than any previously recorded from such a device, and worked as efficiently in dim light as in bright light. This innovation could be a step toward wider adoption of solar power in places like British Columbia and parts of northern Europe where overcast skies are common.