Solar Energy News -- ScienceDaily
Incorporating solar harvesting into the side of buildings could enhance energy sustainability
Wed, 05 Aug 2020 11:01:30 EDT
If builders could incorporate solar harvesting into the siding of a building, the amount of energy from the grid that a structure would need may significantly decrease. Researchers have demonstrated the potential of wedge-shaped luminescent solar concentrators (LSCs). These efficient modular solar units could easily be hung on the side of a building.
For solar boom, scrap silicon for this promising mineral
Mon, 03 Aug 2020 14:00:03 EDT
Engineers have found that photovoltaic wafers in solar panels with all-perovskite structures outperform photovoltaic cells made from state-of-the-art crystalline silicon, as well as perovskite-silicon tandem cells, which are stacked pancake-style cells that absorb light better.
Faster LEDs for wireless communications from invisible light
Thu, 30 Jul 2020 11:01:16 EDT
Researchers have solved a major problem for optical wireless communications - the process by which light carries information between cell phones and other devices. Light-emitting diodes (LEDs) pulse their light in a coded message that recipient devices can understand.
'Fool's gold' may be valuable after all
Thu, 30 Jul 2020 09:26:24 EDT
In a breakthrough new study, scientists and engineers have electrically transformed the abundant and low-cost non-magnetic material iron sulfide, also known as 'fool's gold' or pyrite, into a magnetic material.
Breakthrough method for predicting solar storms
Wed, 29 Jul 2020 12:44:04 EDT
Extensive power outages and satellite blackouts that affect air travel and the internet are some of the potential consequences of massive solar storms. These storms are believed to be caused by the release of enormous amounts of stored magnetic energy due to changes in the magnetic field of the sun's outer atmosphere - something that until now has eluded scientists' direct measurement. Researchers believe this recent discovery could lead to better 'space weather' forecasts in the future.
New technology makes homes more energy independent, helps divert power during power outages
Thu, 23 Jul 2020 15:23:23 EDT
Researchers have designed a smart technology that can help utility companies better serve communities affected by power outages. The researchers said their single device works by improving energy delivery between home solar-power systems and the electrical grid.
COVID-19 shutdown led to increased solar power output
Wed, 22 Jul 2020 09:34:52 EDT
As the air cleared after lockdowns, solar installations in Delhi produced 8 percent more power, a new study shows.
Scientists boost stability and efficiency of next-gen solar tech
Mon, 20 Jul 2020 11:23:29 EDT
Researchers have created next-generation solar modules with high efficiency and good stability. Made using a type of material called perovskites, these solar modules can maintain a high performance for over 2000 hours. Their findings have brightened prospects of commercialization.
Strategies for recycling of solar panels
Thu, 16 Jul 2020 14:47:38 EDT
Researchers have conducted the first global assessment into the most promising approaches to end-of-life management for solar photovoltaic (PV) modules.
Scientists build high-performing hybrid solar energy converter
Wed, 15 Jul 2020 13:12:49 EDT
Scientists have developed a hybrid solar energy converter that generates electricity and steam with high efficiency and low cost.
Renewable energy transition makes dollars and sense
Wed, 15 Jul 2020 09:54:48 EDT
Ne research has disproved the claim that the transition to renewable electricity systems will harm the global economy.
Customizable smart window technology could improve energy efficiency of buildings
Tue, 14 Jul 2020 12:17:44 EDT
Scientists combined solar cell technology with a novel optimization approach to develop a smart window prototype that maximizes design across a wide range of criteria.
Perovskite solar cells record highest power conversion
Tue, 14 Jul 2020 10:12:42 EDT
A team of researchers has created a perovskite solar mini module that has recorded the highest power conversion efficiency of any perovskite-based device larger than 10 cm2.
Understanding the love-hate relationship of halide perovskites with the sun
Fri, 10 Jul 2020 11:21:12 EDT
Perovskiet solar cells are at the center of much recent solar research. The material is cheap and almost as efficient as silicon. However, perovskite cells have a love-hate-relationship with the sun. The light they need to generate electricity, also impairs the quality of the cells, limiting efficiency and stability over time. Research now sheds new light on the causes of this degradation.
Purifying water with the help of wood, bacteria and the sun
Wed, 08 Jul 2020 10:59:59 EDT
According to the United Nations, about one-fifth of the world's population lives in areas where water is scarce. Therefore, technologies to produce clean water from undrinkable sources, such as seawater, river or lake water, and contaminated water, are urgently needed. Now, researchers have developed a wood-based steam generator that, with the help of bacterial-produced nanomaterials, harnesses solar energy to purify water.
Microscopic structures could improve perovskite solar cells
Tue, 07 Jul 2020 11:32:57 EDT
Solar cells based on perovskite compounds could soon make electricity generation from sunlight even more efficient and cheaper. The laboratory efficiency of these perovskite solar cells already exceeds that of the well-known silicon solar cells. An international team has found microscopic structures in perovskite crystals that can guide the charge transport in the solar cell. Clever alignment of these electron highways could make perovskite solar cells even more powerful.
Cooling mechanism increases solar energy harvesting for self-powered outdoor sensors
Tue, 07 Jul 2020 11:32:25 EDT
Thermoelectric devices, which use the temperature difference between the top and bottom of the device to generate power, offer some promise for harnessing naturally occurring energy. Authors tested one made up of a wavelength-selective emitter that constantly cools the device during the day using radiative cooling. As a result, the top of the device is cooler than the bottom, causing a temperature difference that creates constant voltage through day and night.
Newer solar power equipment ages better than older units
Tue, 07 Jul 2020 11:32:20 EDT
Utility-scale photovoltaics are the largest sector of the overall solar market within the US and the fastest-growing form of renewable power generation, and this fleet of utility-scale photovoltaic projects is relatively young and hasn't been operating long enough to establish a lengthy history of operational field service. Researchers assess the performance of 411 utility-scale photovoltaic projects built within the U.S. from 2007 through 2016.
Crystal structure discovered almost 200 years ago could hold key to solar cell revolution
Thu, 02 Jul 2020 14:40:50 EDT
Solar energy researchers are shining their scientific spotlight on materials with a crystal structure discovered nearly two centuries ago.
New solar forecasting model performs best
Mon, 29 Jun 2020 12:02:39 EDT
A new mathematical model for predicting variations in solar irradiance has been developed. It may help to promote more efficient use of electricity from solar energy. In tests of various data models, the model proved capable of making highly reliable forecasts, and emerged as the best for this purpose in some respects.