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Solar Energy News

Transparent solar technology represents 'wave of the future'

Science Daily - Solar Energy - Mon, 10/23/2017 - 23:35
See-through solar materials that can be applied to windows represent a massive source of untapped energy and could harvest as much power as bigger, bulkier rooftop solar units, scientists report.
Categories: Solar Energy

Scientists create most powerful micro-scale bio-solar cell yet

Science Daily - Solar Energy - Tue, 10/17/2017 - 22:01
Researchers have created a micro-scale biological solar cell that generates a higher power density for longer than any existing cell of its kind.
Categories: Solar Energy

A new miniature solution for storing renewable energy

Science Daily - Solar Energy - Thu, 10/12/2017 - 21:38
In a first for metal-organic frameworks, scientists have demonstrated their metallic conductivity.
Categories: Solar Energy

Mimicking two natural energy processes with a single catalyst

Science Daily - Solar Energy - Wed, 10/11/2017 - 21:07
Researchers take inspiration from natural chemical processes based on hydrogenase and photosystem II, to produce a single metal catalyst with both fuel cell and solar cell functionalities. The combination of these two processes into one system suggests great potential for biologically inspired energy generation technologies.
Categories: Solar Energy

Solar-powered devices made of wood could help mitigate water scarcity crisis

Science Daily - Solar Energy - Wed, 10/11/2017 - 09:45
Energy from the sun and a block of wood smaller than an adult's hand are the only components needed to heat water to its steaming point in these purifying devices.
Categories: Solar Energy

Solar energy: Prototype shows how tiny photodetectors can double their efficiency

Science Daily - Solar Energy - Mon, 10/09/2017 - 23:32
Physicists have developed a photodetector -- a device that converts light into electrons -- by combining two distinct inorganic materials and producing quantum mechanical processes that could revolutionize the way solar energy is collected. The researchers stacked two atomic layers of tungsten diselenide on a single atomic layer of molybdenum diselenide. Such stacking results in properties vastly different from those of the parent layers, allowing for customized electronic engineering at the tiniest possible scale.
Categories: Solar Energy

New nanomaterial can extract hydrogen fuel from seawater

Science Daily - Solar Energy - Thu, 10/05/2017 - 03:20
A new hybrid nanomaterial harvests solar energy and uses it to extract hydrogen from seawater, cheaply and efficiently. Future commercialization could mean a new source of environmentally friendly fuel and less dependence on fossil fuels.
Categories: Solar Energy

Perovskite solar cells reach record long-term stability, efficiency over 20 percent

Science Daily - Solar Energy - Fri, 09/29/2017 - 01:20
Scientists have greatly improved the operational stability of perovskite solar cells by introducing cuprous thiocyanate protected by a thin layer of reduced graphene oxide. Devices lost less than 5 percent performance when subjected to a crucial accelerated aging test during which they were exposed for more than 1,000 hours to full sunlight at 60°C.
Categories: Solar Energy

Energy harvested from evaporation could power much of US

Science Daily - Solar Energy - Tue, 09/26/2017 - 23:51
In the first evaluation of evaporation as a renewable energy source, researchers find that US lakes and reservoirs could generate 325 gigawatts of power, nearly 70 percent of what the United States currently produces.
Categories: Solar Energy

Wearable solar thermoelectric generator created

Science Daily - Solar Energy - Tue, 09/26/2017 - 21:55
Engineers have introduced a new advanced energy harvesting system, capable of generating electricity by simply being attached to clothes, windows, and outer walls of a building.
Categories: Solar Energy

Fully renewable India in 2050 can take a shortcut to emission-free future

Science Daily - Solar Energy - Mon, 09/25/2017 - 22:16
India can function on a fully renewable electricity system in 2050, research indicates. The study shows that developing countries that have an abundance of renewable resources do not need to take the path of the western countries where increasing living standards have been coupled with heavy emissions from electricity generation and other industry. They can move straight to renewable systems and do it cheaply.
Categories: Solar Energy

Semitransparent and flexible: Solar cells made from atomically thin sheet

Science Daily - Solar Energy - Mon, 09/25/2017 - 20:55
A new method for fabricating semitransperant, flexible solar cells has greatly improved power conversion efficiency.
Categories: Solar Energy

Astonishing time limit for ultrafast perovskite solar cells set

Science Daily - Solar Energy - Thu, 09/21/2017 - 21:17
Researchers have quantified the astonishingly high speeds at which future solar cells would have to operate in order to stretch what are presently seen as natural limits on their energy conversion efficiency.
Categories: Solar Energy

Solar-to-fuel system recycles CO2 to make ethanol and ethylene

Science Daily - Solar Energy - Tue, 09/19/2017 - 02:17
Scientists have harnessed the power of photosynthesis to convert carbon dioxide into fuels and alcohols at efficiencies far greater than plants. The achievement marks a significant advance in the effort to move toward sustainable sources of fuel.
Categories: Solar Energy

Coatings needed for concentrating solar power

Science Daily - Solar Energy - Tue, 09/19/2017 - 02:17
Next-generation concentrating solar power (CSP) plants require high-temperature fluids, like molten salts, in the range of 550-750 degrees Celsius to store heat and generate electricity. At those high temperatures, however, the molten salts eat away at common alloys used in the heat exchangers, piping, and storage vessels of CSP systems. New research is aimed at mitigating corrosion levels in CSP plants with nickel-based coatings.
Categories: Solar Energy

A solar cell you can put in the wash

Science Daily - Solar Energy - Mon, 09/18/2017 - 22:18
Scientists have developed a new type of ultra-thin photovoltaic device, coated on both sides with stretchable and waterproof films, which can continue to provide electricity from sunlight even after being soaked in water or being stretched and compressed.
Categories: Solar Energy

Hydrogen power moves a step closer

Science Daily - Solar Energy - Fri, 09/15/2017 - 02:22
Physicists are developing methods of creating renewable fuel from water using quantum technology. Renewable hydrogen can already be produced by photoelectrolysis where solar power is used to split water molecules into oxygen and hydrogen. But fundamental problems remain before this can be adopted commercially due to inefficiency. A new study demonstrates that the novel use of nanostructures could increase the maximum photovoltage generated in a photoelectrochemical cell, increasing the productivity of splitting water molecules.
Categories: Solar Energy

Defects in next-generation solar cells can be healed with light

Science Daily - Solar Energy - Thu, 09/07/2017 - 00:56
Researchers have shown that defects in the molecular structure of perovskites -- a material which could revolutionize the solar cell industry -- can be 'healed' by exposing it to light and just the right amount of humidity.
Categories: Solar Energy

Firebricks offer low-cost storage for carbon-free energy

Science Daily - Solar Energy - Wed, 09/06/2017 - 22:46
Researchers draw from an ancient technology in their latest solution to enabling rapid expansion of wind, solar and nuclear power. Heat-storing firebricks could be used to level electricity prices for renewables, they propose.
Categories: Solar Energy

Engineers develop tools to share power from renewable energy sources during outages

Science Daily - Solar Energy - Wed, 09/06/2017 - 01:55
A team of engineers has developed algorithms that would allow homes to use and share power from their renewable energy sources during outages by strategically disconnecting these devices, called solar inverters, from the grid. The algorithms work with existing technology and would improve systems' reliability by 25 to 35 percent.
Categories: Solar Energy

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