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.
Solar panel demand causing spike in worldwide silver prices
17 Apr 2019 at 7:27am
Rising demand for solar panels is having a major effect on the worldwide price of silver, which could lead to solar panel production costs becoming far higher in the future, new research has demonstrated.
Best in snow: New scientific device creates electricity from snowfall
15 Apr 2019 at 1:08pm
Researchers have designed a new device that creates electricity from falling snow, a first. The device is inexpensive, small, thin and flexible like a sheet of plastic.
Shrinking the carbon footprint of a chemical in everyday objects
9 Apr 2019 at 12:36pm
Chemical engineers have devised an alternative approach to synthesizing epoxides, a type of chemical that is found in many products, including plastics, pharmaceuticals and textiles. Their approach could reduce the greenhouse gas emissions produced by current manufacturing techniques.
Engineers develop concept for hybrid heavy-duty trucks
8 Apr 2019 at 3:37pm
Researchers have devised a new way of powering heavy-duty trucks that could drastically curb pollution, increase efficiency, and reduce or even eliminate their net greenhouse gas emissions.
Carbon-negative power generation for China
8 Apr 2019 at 1:16pm
Researchers have analyzed technical and economic viability for China to move towards carbon-negative electric power generation.
Renewables are a better investment than carbon capture for tackling climate c...
8 Apr 2019 at 8:40am
Solar panels and wind turbines coupled with energy storage offer a better hope for tackling climate change than trying to capture carbon from fossil fuel power stations, according to new research. New research shows that resources that would be spent on developing and installing carbon capture technologies would be better invested in creating more solar panels and wind turbines and focusing on developing energy storage options to support these instead.
The complicated future of offshore wind power in the US
2 Apr 2019 at 1:45pm
In recent years the US Department of Energy laid out an ambitious plan to grow the US offshore wind sector. Researchers make the case that it might not be as easy as it seems, citing specifically the challenge of supplying rare-earth metals needed to build these offshore wind turbines.
Winds of change: Solar variability weakens the Walker cell
28 Mar 2019 at 12:09pm
Researchers have found robust evidence for signatures of the 11-year sunspot cycle in the tropical Pacific. They analyzed historical time series of pressure, surface winds, and precipitation with focus on the Walker Circulation -- a vast system of atmospheric flow in the tropical Pacific region that affects patterns of tropical rainfall. They have revealed that during periods of increased solar irradiance, the trade winds weaken and the Walker circulation shifts eastwards.
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.