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.
Hydrogen cars for the masses one step closer to reality, thanks to invention
20 Nov 2017 at 6:37am
A new device that can inexpensively and efficiently create and store energy and create hydrogen fuel, and that needs only sunlight to operate, has now been developed by researchers.
Hydrogen fuel from water by harnessing red and near-infrared regions of sunlight
17 Nov 2017 at 7:37am
Scientists have synthesized a compound that absorbs near-infrared light to produce hydrogen from water. The compound contains three ruthenium atoms connected by an organic molecule. The absorbed light stimulates electrons to 'jump' into orbitals that do not exist in other, similar compounds. This is the first successful use of infrared light to reduce water into hydrogen, which can be used for energy conversion and storage, and other industrial purposes in a future sustainable energy society.
New theory rewrites opening moments of Chernobyl disaster
17 Nov 2017 at 5:51am
A brand-new theory of the opening moments during the Chernobyl disaster, the most severe nuclear accident in history, based on additional analysis.
A fast reactor system to shorten the lifetime of long-lived fission products
14 Nov 2017 at 6:12am
Researchers have proposed a more efficient method to reduce radioactive waste. The study involves converting radioactive material into short-lived nuclides by absorbing surplus neutrons in the core peripheral portion of a small fast reactor faster than they are generated in the core, thus providing an effective way to lessen the burden of nuclear waste on future generations.
We should use central pressure deficit, not wind speed, to predict hurricane ...
8 Nov 2017 at 6:20am
New research provides a physical understanding for why central pressure deficit is a better indicator of economic damage from hurricanes than peak wind speed.
Cities can cut greenhouse gas emissions far beyond their urban borders
7 Nov 2017 at 8:31am
Greenhouse gas emissions caused by urban households' purchases of goods and services from beyond city limits are much bigger than previously thought. These upstream emissions may occur anywhere in the world and are roughly equal in size to the total emissions originating from a city's own territory, a new study shows. This is not bad news but in fact offers local policy-makers more leverage to tackle climate change, the authors argue in view of the UN climate summit COP23 that just started.
Additional hurdle to widespread planting of bioenergy crops identified
2 Nov 2017 at 12:10pm
A study examining how certain decisions impact what farmers plant and harvest identified one crucial factor that researchers believe needs to be added to the list of decision variables when considering bioenergy crops: the option value.
Revolutionizing nuclear waste reprocessing and saving money
1 Nov 2017 at 6:20am
Seeking a better way to capture radioactive iodides in spent nuclear reactor fuel, scientists have developed an extremely efficient 'molecular trap' that can be recycled and reused.
Discarded cigarette butts: The next high performing hydrogen storage material?
31 Oct 2017 at 9:05am
Discarded cigarette butts are a major waste disposal and environmental pollution hazard. But chemists have discovered that cigarette butt-derived carbons have ultra-high surface area and unprecedented hydrogen storage capacity.
Research aims to help renewable jet fuel take flight
30 Oct 2017 at 12:44pm
The International Air Transport Association predicts that 7.2 billion passengers will fly in 2035, nearly doubling the 3.8 billion in 2016. So how do we make flying easier on the environment? Instead of petroleum, researchers have now developed new processes to ramp up production of bio-based fuel made from corncobs and wood chips.
Cobalt and tungsten key to cheaper, cleaner hydrogen
30 Oct 2017 at 10:46am
Electrolysis, splitting the water molecule with electricity, is the cleanest way to obtain hydrogen, a clean and renewable fuel. Now, researchers have designed a new catalyst that reduces the cost of electrolytic hydrogen production. Catalysts reduce the amount of electricity needed to break the chemical bonds, speed up the reaction and minimize the energy waste.
Robotics principles help wave energy converters better absorb power of ocean ...
30 Oct 2017 at 10:15am
Compared to wind and solar energy, wave energy has remained relatively expensive and hard to capture, but engineers are working to change that by drawing inspiration from other industries. The engineering team has designed, modeled and tested a control system that doubles the amount of power a wave energy converter can absorb from ocean waves, making electricity produced from wave energy less expensive.
Building a sustainable future: Urgent action needed
30 Oct 2017 at 8:24am
We need to act urgently to increase the energy efficiency of our buildings as the world's emerging middle classes put increasing demands on our planet's energy resources.
New fractal-like concentrating solar power receivers are better at absorbing ...
25 Oct 2017 at 9:24am
Engineers have developed new fractal-like, concentrating solar power receivers for small- to medium-scale use that are up to 20 percent more effective at absorbing sunlight than current technology.
Among 'green' energy, hydropower is the most dangerous
25 Oct 2017 at 7:31am
Many governments are promoting a move away from fossil fuels towards renewable energy sources. However, in a new study, scientists highlight some of the ecological dangers this wave of 'green' energy poses.