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.
Ultrathin black phosphorus for solar-driven hydrogen economy
17 Jan 2018 at 7:26am
Researchers combined two different types of 2-D materials -- black phosphorus and bismuth vanadate -- to form a biologically inspired water-splitting catalyst. Normal sunlight could drive the reactions and careful design of the catalyst enabled the expected ratio of hydrogen and oxygen production.
Nuclear power plants must be able to withstand fires caused by aircraft impacts
16 Jan 2018 at 9:37am
Researches examined the transport, evaporation and combustion of liquids in large-scale fire incidents.
Shale gas is one of the least sustainable ways to produce electricity, resear...
16 Jan 2018 at 5:50am
Shale gas is one of least sustainable options for producing electricity, according to new research.
Slow 'hot electrons' could improve solar cell efficiency
16 Jan 2018 at 5:50am
Photons with energy higher than the 'band gap' of the semiconductor absorbing them give rise to what are known as hot electrons. The extra energy is lost very fast, as it is converted into heat so it does not contribute to the voltage. Researchers have now found a material in which these hot electrons retain their high energy levels for much longer.
Solar fuels: better efficiency using microwires
15 Jan 2018 at 9:16am
Researchers have made significant efficiency improvements to the technology used to generate solar fuels. This involves the direct conversion of energy from sunlight into a usable fuel (in this case, hydrogen). Using only earth-abundant materials, they developed the most efficient conversion method to date. The trick was to decouple the site where sunlight is captured from the site where the conversion reaction takes place.
Nature has more than one way to make methane
15 Jan 2018 at 9:05am
Biochemists report a bacterial, iron-only nitrogenase pathway for methane formation.
Harnessing the power of algae: New, greener fuel cells move step closer to re...
10 Jan 2018 at 8:29am
A new design of algae-powered fuel cells that is five times more efficient than existing plant and algal models, as well as being potentially more cost-effective to produce and practical to use, has been developed.
Sun, wind, and power trading
9 Jan 2018 at 7:28am
The use of renewables like the sun and wind can cause fluctuations in power grids. But what impact do these fluctuations have on security of supply? To answer this question, scientists analyzed different types of fluctuations in several power grids in Europe, Japan, and the USA -- and came to surprising conclusions.
Making solar energy more efficient
5 Jan 2018 at 5:23am
Researchers have demonstrated methods of optimizing the capture of sunlight.
Tweaking quantum dots powers-up double-pane solar windows
2 Jan 2018 at 10:48am
Researchers are creating double-pane solar windows that generate electricity with greater efficiency and also create shading and insulation. It's all made possible by a new window architecture which utilizes two different layers of low-cost quantum dots tuned to absorb different parts of the solar spectrum. The approach complements existing photovoltaic technology by adding high-efficiency sunlight collectors to existing solar panels or integrating them as semitransparent windows into a building's architecture.
A fossil fuel technology that doesn't pollute
2 Jan 2018 at 10:48am
Engineers are developing technologies that have the potential to economically convert fossil fuels and biomass into useful products including electricity without emitting carbon dioxide to the atmosphere.
Secrets of ancient Egypt may spark better fuel cells for tomorrow's cars
19 Dec 2017 at 7:08pm
To make modern-day fuel cells less expensive and more powerful, a team of chemical engineers has drawn inspiration from the ancient Egyptian tradition of gilding.
Nontraditional sites for future solar farms
19 Dec 2017 at 10:36am
In a study published today in Environmental Science and Technology, researchers at the University of California, Riverside and the University of California, Davis, explored the possibility of developing solar installations on a variety of unconventional sites in California's Central Valley.
Expanding solar energy without encroaching on potential farmland and conserva...
19 Dec 2017 at 6:13am
As the world tries to combat climate change, sustainable forms of energy are on the rise. Solar energy is of particular interest, but arrays of photovoltaic panels take up a lot of space and can compete for prime food-producing land. Now researchers have found plenty of places to install solar devices without taking up arable land, while generating enough power to help regions meet their energy goals.
Floating solar fuels rig created for seawater electrolysis
15 Dec 2017 at 6:44am
Chemical engineers have developed a novel photovoltaic-powered electrolysis device that can operate as a stand-alone platform that floats on open water. The floating PV-electrolyzer can be thought of as a 'solar fuels rig' that bears some resemblance to deep-sea oil rigs -- but it would produce hydrogen fuel from sunlight and water instead of extracting petroleum from beneath the sea floor.