Solar Energy News -- ScienceDaily
Could the heat of the Earth's crust become the ultimate energy source?
Wed, 17 Jul 2019 23:03:47 EDT
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.
A new material for the battery of the future
Wed, 17 Jul 2019 12:26:07 EDT
Researchers have discovered a new high performance and safe battery material (LTPS) capable of speeding up charge and discharge to a level never observed so far. Practically, if the first tests are confirmed, this new material could be used in the batteries of the future with better energy storage, faster charge and discharge and higher safety targeting many uses from smartphones, to electric bicycle and cars.
2D perovskite materials found to have unique, conductive edge states
Mon, 15 Jul 2019 09:49:04 EDT
A new class of 2D perovskite materials with edges that are conductive like metals and cores that are insulating was found by researchers who said these unique properties have applications in solar cells and nanoelectronics.
Shifts to renewable energy can drive up energy poverty, study finds
Fri, 12 Jul 2019 15:19:26 EDT
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
Fri, 12 Jul 2019 13:33:47 EDT
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.
20 overlooked benefits of distributed solar energy
Wed, 10 Jul 2019 10:32:19 EDT
A study released today provides the most complete list yet of the advantages of solar energy -- from carbon sequestration to improvements for pollinator habitat.
Thought experiment: Switzerland without fossil fuels. Can that succeed?
Mon, 08 Jul 2019 12:23:32 EDT
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.
Window film could even out the indoor temperature using solar energy
Mon, 08 Jul 2019 11:25:09 EDT
A window film with a specially designed molecule could be capable of taking the edge off the worst midday heat and instead distributing it evenly from morning to evening. The molecule has the unique ability to capture energy from the sun's rays and release it later as heat.
Experiments show dramatic increase in solar cell output
Wed, 03 Jul 2019 13:40:54 EDT
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
Mon, 01 Jul 2019 14:43:04 EDT
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
Thu, 27 Jun 2019 11:40:10 EDT
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.
The RoboBee flies solo
Wed, 26 Jun 2019 13:37:12 EDT
The RoboBee -- the insect-inspired microrobot -- has become the lightest vehicle ever to achieve sustained flight without the assistance of a power cord. After decades of work, the researchers achieved untethered flight by making several important changes to the RoboBee, including the addition of a second pair of wings. That change, along with less visible changes to the actuators and transmission ratio, gave the RoboBee enough lift for the researchers to attach solar cells and an electronics panel.
Which climates are best for passive cooling technologies?
Tue, 25 Jun 2019 13:35:29 EDT
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 create multi-junction solar cells from off-the-shelf components
Mon, 24 Jun 2019 16:11:43 EDT
In a proof-of-concept paper, researchers detail a new approach for creating multi-junction solar cells using off-the-shelf components, resulting in lower cost, high-efficiency solar cells for use in multiple applications.
Researchers clear runway for tin based perovskite solar cells
Mon, 24 Jun 2019 11:09:52 EDT
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
Thu, 20 Jun 2019 12:14:08 EDT
Researchers bring diurnal and seasonal variations into the lab to test the performance of perovskite solar cells under realistic conditions.
Special nanotubes could improve solar power and imaging technology
Wed, 19 Jun 2019 13:48:26 EDT
Physicists discovered a novel kind of nanotube that generates current in the presence of light. Devices such as optical sensors and infrared imaging chips are likely applications, which could be useful in fields such as automated transport and astronomy. In future, if the effect can be magnified and the technology scaled up, it could lead to high-efficiency solar power devices.
'Hot spots' increase efficiency of solar desalination
Tue, 18 Jun 2019 09:01:12 EDT
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.'
'Self-healing' polymer brings perovskite solar tech closer to market
Mon, 17 Jun 2019 12:51:38 EDT
A protective layer of epoxy resin helps prevent the leakage of pollutants from perovskite solar cells (PSCs), report scientists. Adding a 'self-healing' polymer to the top of a PSC can radically reduce how much lead it discharges into the environment. This gives a strong boost to prospects for commercializing the technology.
Carbon-neutral fuel made from sunlight and air
Thu, 13 Jun 2019 10:31:46 EDT
Researchers have developed a novel technology that produces liquid hydrocarbon fuels exclusively from sunlight and air. For the first time worldwide they demonstrate the entire thermochemical process chain under real field conditions.