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.
Could the heat of the Earth's crust become the ultimate energy source?
17 Jul 2019 at 8:03pm
Scientists have developed a very stable battery cell that can directly convert heat into electricity, thus finally providing a way for exploiting geothermal energy in a sustainable way.
Black plastics could create renewable energy
16 Jul 2019 at 6:55am
A new study looks at how plastics can be recycled and could help reduce plastic waste.
Shifts to renewable energy can drive up energy poverty, study finds
12 Jul 2019 at 12:19pm
Efforts to shift away from fossil fuels and replace oil and coal with renewable energy sources can help reduce carbon emissions but do so at the expense of increased inequality, according to a new study.
Device channels heat into light
12 Jul 2019 at 10:33am
Engineers have shown how their carbon nanotube films can be used to create a device to recycle waste heat. The device could enhance solar cell output and increase the efficiency of industrial waste-heat recovery.
Fossil fuels increasingly offer a poor return on energy investment
11 Jul 2019 at 8:48am
Researchers have calculated the EROI for fossil fuels over a 16 year period and found that at the finished fuel stage, the ratios are much closer to those of renewable energy sources -- roughly 6:1, and potentially as low as 3:1 in the case of electricity.
20 overlooked benefits of distributed solar energy
10 Jul 2019 at 7:32am
A study released today provides the most complete list yet of the advantages of solar energy -- from carbon sequestration to improvements for pollinator habitat.
Left out to dry: A more efficient way to harvest algae biomass
9 Jul 2019 at 8:02am
Researchers have developed a new system for evaporating the water from algae biomass with reusable nanoporous graphene, which can lead to cheaper, more environmentally friendly biofuels and fine chemicals.
Thought experiment: Switzerland without fossil fuels. Can that succeed?
8 Jul 2019 at 9:23am
A new study shows how much work still lies ahead of us if Switzerland is to do without fossil fuels in the future. There are two possible solutions: storing large amounts of energy in summer and limiting our demand in winter, or generating energy in the 'sunny south' or 'windy north' of the world and transporting it here.
Experiments show dramatic increase in solar cell output
3 Jul 2019 at 10:40am
Researchers have found a way to increase the output of silicon solar cells by allowing a single photon to release two electrons in the silicon.
Researchers create worldwide solar energy model
1 Jul 2019 at 11:43am
For any future sustainable energy system, it is crucial to know the performance of photovoltaic (solar cell) systems at local, regional and global levels. Researchers have investigated and mapped the capacities of photovoltaic generation in the European countries in four different configurations: Rooftop, optimum tilt, tracking and delta configuration, and made the data openly available. The different configurations have a strong influence on the hourly difference between electricity demand and PV generation.
Solar energy could turn the Belt and Road Initiative green
27 Jun 2019 at 8:40am
The region covered by the Belt and Road Initiative has significant potential to be powered by solar energy, researchers report. Less than 4% of the maximum solar potential of the region could meet the BRI's electricity demand for 2030. The research suggests a possible solution to reduce BRI countries' need for fossil fuels as they develop. This is the first time the renewable energy potential of the region is quantified.
Which climates are best for passive cooling technologies?
25 Jun 2019 at 10:35am
Researchers recently set out to gain a better understanding of the thermal balance of power plants and surfaces, but quickly realized that they would need to determine what roles cloud cover and relative humidity play in the transparency of the atmosphere to radiatio. The group presents detailed radiative cooling resource maps they created to help determine the best climates for large-scale deployment of passive cooling technologies.
Researchers clear runway for tin based perovskite solar cells
24 Jun 2019 at 8:09am
Researchers believe their tin based perovskite solar cell could clear the runway for solar panel technology to take off.
Perovskite solar cells tested for real-world performance -- in the lab
20 Jun 2019 at 9:14am
Researchers bring diurnal and seasonal variations into the lab to test the performance of perovskite solar cells under realistic conditions.
'Hot spots' increase efficiency of solar desalination
18 Jun 2019 at 6:01am
Researchers showed they could boost the efficiency of their nanotechnology-enabled solar membrane desalination system by more than 50% simply by adding inexpensive plastic lenses to concentrate sunlight into 'hot spots.'