Solar Energy News -- ScienceDaily
Solar Energy Information. Read the latest news and techniques for efficient solar photovoltaic power, new solar energy systems and more.
Machine learning models to help photovoltaic systems find their place in the sun
20 Jul 2021 at 9:23am
Scientists develop algorithms that predict the output of solar cells, easing their integration into existing power grids.
Renewable energies: No wind turbine disturbing the scenery
20 Jul 2021 at 8:44am
In the Alpine foothills, in low mountain ranges, or on the seacoast, expansion of wind energy use often meets popular resistance. Researchers have now studied what this means for the energy transition.
Solar cells: Boosting photovoltaic effect in ferroelectric-paraelectric super...
20 Jul 2021 at 8:44am
The photovoltaic effect of ferroelectric crystals can be increased by a factor of 1,000 if three different materials are arranged periodically in a lattice. Researchers achieved this by creating crystalline layers of barium titanate, strontium titanate and calcium titanate which they alternately placed on top of one another. These findings could significantly increase the efficiency of solar cells.
Renewable energy OK, but not too close to home
19 Jul 2021 at 9:03am
When it comes to transitioning from carbon-based to renewable source energy systems, Americans are on board. They're less keen, however, having these new energy infrastructures built close to their homes.
Removing the lead hazard from perovskite solar cells
15 Jul 2021 at 6:08am
Although a very promising solution for capturing solar energy, perovskite solar cells contain lead, which is toxic to the environment and a serious health hazard. Scientists have now found a very elegant and efficient solution by adding a transparent phosphate salt that doesn't interfere with light-conversion efficiency while preventing lead from seeping into the soil in cases of solar panel failure.
Giving a 'tandem' boost to solar-powered water splitting
12 Jul 2021 at 7:22am
Scientists combine two promising photocatalysts to obtain higher solar-to-hydrogen conversion efficiency and durability in a water splitting cell.
Collective battery storage beneficial for decarbonized world
8 Jul 2021 at 7:36am
Batteries are potentially a game-changing technology as we decarbonize our economy, and their benefits are even greater when shared across communities, a new study has found.
Reducing the melting of Greenland ice cap using solar geoengineering?
7 Jul 2021 at 1:05pm
Injecting sulphur into the stratosphere to reduce solar radiation and stop the Greenland ice cap from melting: An interesting scenario, but not without risks. Climatologists have looked into the matter and have tested one of the scenarios put forward using the MAR climate model. The results are mixed.
Cutting through noise for better solar cells
7 Jul 2021 at 8:25am
Physicists used cross-correlation noise spectroscopy to measure miniscule fluctuations in electrical current flowing between materials inside silicon solar cells. The researchers identified crucial electrical noise signals that are completely invisible to conventional noise-measuring methods. They were also able to pinpoint the likely physical processes causing the noise, which often results in a loss of energy and lower efficiency. The technique is an important new tool to improve material interfaces for a better solar cell.
Solar hydrogen for Antarctica: Advantages of thermally coupled approach
2 Jul 2021 at 12:43pm
Their conclusion: in extremely cold regions, it can be considerably more efficient to attach the PV modules directly to the electrolyser, i.e. to thermally couple them. This is because the waste heat from the PV modules increases the efficiency of electrolysis in this environment. The results of this study are also relevant for other cold regions on Earth, such as Alaska, Canada, and high mountain regions, for example. In these places, solar hydrogen could replace fossil fuels such as oil and petrol.
Why does Mercury have such a big iron core?
2 Jul 2021 at 12:43pm
A new study disputes the prevailing hypothesis on why Mercury has a big core relative to its mantle. For decades, scientists argued that hit-and-run collisions blew away much of Mercury's rocky mantle and left the big, dense, metal core inside. But new research reveals that collisions are not to blame -- instead, the density, mass and iron content of a rocky planet's core is influenced by its distance from the sun's magnetic field.
Mixing it up: A low-cost way to make efficient, stable perovskite solar cells
30 Jun 2021 at 8:54am
By using a fluid mixing process instead of expensive, high-temperature fabrication methods, researchers may have demonstrated a pathway to producing flexible, printed solar cells on a cost effective, industrial scale.
Data-driven approach for a more sustainable utility rate structure
29 Jun 2021 at 10:42am
Many drivers use tollways to get from point A to point B because they are a faster and more convenient option. The fees associated with these roadways are higher during peak traffic hours of the day, such as during the commute to and from work.
Recycling next-generation solar panels fosters green planet
24 Jun 2021 at 2:08pm
Designing a recycling strategy for a new, forthcoming generation of photovoltaic solar cells - made from metal halide perovskites, a family of crystalline materials with structures like the natural mineral calcium titanate - will add a stronger dose of environmental friendliness to a green industry, according to new research.
Harvesting drinking water from humid air around the clock
23 Jun 2021 at 11:16am
Researchers have developed a condenser for countries where water is in short supply. Theirs is a zero-energy solution for harvesting water from the atmosphere throughout the 24-hour daily cycle. It relies on a self-cooling surface and a special radiation shield.