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.
Commercial hybrid-electric aircraft, reduced carbon emissions
25 Mar 2019 at 10:05am
Although we're still a long way from commercial airplanes powered by a combination of fossil fuel and batteries, a recent feasibility study explored fuel/battery configurations and the energy lifecycle to learn the trade-offs needed to yield the greatest reductions in carbon dioxide emissions.
Bright skies for plant-based jet fuels
19 Mar 2019 at 5:39am
With an estimated daily fuel demand of more than 5 million barrels per day, the global aviation sector is incredibly energy-intensive and almost entirely reliant on petroleum-based fuels. However, a new analysis shows that sustainable plant-based bio-jet fuels could provide a competitive alternative to conventional fuels if current development and scale-up initiatives continue to push ahead successfully.
Researchers create hydrogen fuel from seawater
18 Mar 2019 at 12:17pm
Splitting water into hydrogen and oxygen presents an alternative to fossil fuels, but purified water is a precious resource. A team has now developed a way to harness seawater -- Earth's most abundant source -- for chemical energy.
Solar-powered moisture harvester collects and cleans water from air
14 Mar 2019 at 9:31am
A breakthrough by engineers offers new solution through solar-powered technology that absorbs moisture from the air and returns it as clean, usable water. This 'super-sponge' could be used in disaster situations, poverty-stricken areas and developing countries.
Renewable energy won't make Bitcoin 'green,' but tweaking its mining mechanis...
14 Mar 2019 at 8:10am
The cryptocurrency Bitcoin is known for its energy footprint. Now, a researcher suggests that renewable hydropower production cannot supply the large quantities of energy needed to power machinery used to validate Bitcoin transactions.
Researchers uncover additional evidence for massive solar storms
11 Mar 2019 at 12:27pm
Solar storms can be far more powerful than previously thought. A new study has found evidence for the third known case of a massive solar storm in historical times. The researchers believe that society might not be sufficiently prepared if a similar event were to happen now.
Shifting away from coal is key to cutting greenhouse gas emissions
7 Mar 2019 at 7:32am
The United States could fulfill its greenhouse gas emission pledge under the Paris Climate Agreement by virtually eliminating coal as an energy source by 2024, according to new research.
Improving solar cell efficiency with a bucket of water
6 Mar 2019 at 9:53am
Beth Parks has devised an astonishingly simple way to overcome a limitation of solar cells -- a bucket of water. She developed a frame that holds the solar cell with a bucket suspended on either end. By controlling the leak of water from one of the buckets, the solar cell shifts, tracking the arc of the sun throughout the day.
Good news! Europe's electric grid will still work even as the world crumbles
6 Mar 2019 at 8:07am
Temperatures may climb and seas may rise, but the lights (and, undoubtedly, the air conditioning) will still be on in nations with high capacities for wind and solar energy. New research suggests that these electricity systems should work almost equally well in both historical and future European climates despite changing weather patterns.
Discovering the next generation of catalysts
5 Mar 2019 at 7:06am
The use of solar and wind energy must be doubled to meet the world's demand for clean energy over the next 30 years. Catalysts that can ensure the storage of solar and wind energy in fuels and chemicals will therefore play an increasingly important role. Now researchers have developed a method that makes it easier to find better and cheaper catalysts.
Potential new source of rare earth elements
4 Mar 2019 at 6:59am
Researchers have found a possible new source of rare earth elements - phosphate rock waste - and an environmentally friendly way to get them out, according to a new study. The approach could benefit clean energy technology.
Engineers develop fast method to convert algae to biocrude
4 Mar 2019 at 6:58am
A team of chemical engineers have developed a new kind of jet mixer for creating biomass from algae that extracts the lipids from the watery plants with much less energy than the older extraction method. This key discovery now puts this form of energy closer to becoming a viable, cost-effective alternative fuel.
How power-to-gas technology can be green and profitable
26 Feb 2019 at 8:23am
Hydrogen production based on wind power can already be commercially viable today. Until now, it was generally assumed that this environmentally friendly power-to-gas technology could not be implemented profitably. Economists have now described, based on the market situations in Germany and Texas, how flexible production facilities could make this technology a key component in the transition of the energy system.
CO2 emissions in developed economies fall due to decreasing fossil fuel and e...
25 Feb 2019 at 8:22am
Efforts to cut emissions of carbon dioxide and tackle climate change in developed economies are beginning to pay off according to new research.
Ingredients for water could be made on surface of moon, a chemical factory
20 Feb 2019 at 9:19am
When a stream of charged particles known as the solar wind careens onto the moon's surface at 450 kilometers per second (or nearly 1 million miles per hour), they enrich the moon's surface in ingredients that could make water, scientists have found.