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.
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.'
'Self-healing' polymer brings perovskite solar tech closer to market
17 Jun 2019 at 9:51am
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
13 Jun 2019 at 7:31am
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.
Breathing new life into dye-sensitized solar cells
12 Jun 2019 at 3:11pm
Researchers are poised to reboot the field of aromatic-fused porphyrin sensitizers for dye-sensitized solar cells, the most efficient solar efficient solar technology available at present.
Clarifying the economic value of adjusting the power consumption
10 Jun 2019 at 8:15am
The economic value of demand response that adjusts the power consumption has not been clarified. A control method for maximizing cost-effectiveness of demand response is developed. Using this method, the optimal power consumption can be calculated based on the prediction of the power generation cost and the demand.
Societal values and perceptions shape energy production and use as much as ne...
28 May 2019 at 4:30pm
Societal values and perceptions have shaped the energy landscape as much as the technologies that drive its production and consumption, a new article suggests.
New York state winters could pose solar farm 'ramping' snag for power grid
28 May 2019 at 4:30pm
With low energy demand around midday in the winter, combined with solar-electricity production, New York's power system could face volatile swings of 'ramping' -- which is how power system operators describe quick increases or decreases in demand.
Helping cities make power grids safer, more reliable
28 May 2019 at 9:06am
Solar power researchers have traditionally used the power measurements from single residential solar photovoltaic systems to estimate the power generated within a city. But one installation isn't a good representation of all rooftops. Data from systems across a city is desperately needed to fully understand how this energy source can be integrated into the power grid. Engineers have provided a freely available quality-controlled and tuned dataset from 1,287 residential installations across Australia.
Major step forward in the production of 'green' hydrogen
27 May 2019 at 8:17am
The first thermodynamically reversible chemical reactor capable of producing hydrogen as a pure product stream represents a 'transformational' step forward in the chemical industry.
Gas vs. electric? Fuel choice affects efforts to achieve low-energy and low-i...
23 May 2019 at 10:02am
If you want to make your home as energy-efficient and green as possible, should you use gas or electric for your heating and cooling needs?
Engineered bacteria could be missing link in energy storage
23 May 2019 at 10:02am
One of the big issues with sustainable energy systems is how to store electricity that's generated from wind, solar and waves. At present, no existing technology provides large-scale storage and energy retrieval for sustainable energy at a low financial and environmental cost. Engineered electroactive microbes could be part of the solution.
100% renewables doesn't equal zero-carbon energy, and the difference is growing
23 May 2019 at 8:14am
While 160 companies around the world have committed to use '100% renewable energy,' that does not mean '100% carbon-free energy.' The difference will grow as power grids become less reliant on fossil power, according to a new study. Entities committed to fighting climate change can and should measure the environmental benefits of their renewable strategies accurately, the authors write.