Firm unveils radical design that claims to be quieter and safer than traditional wind farms By Ellie Zolfagharifard For Dailymail. com Published:
00:15 GMT, 19 may 2015 Today wind turbines have colossal blades that spin at speeds of more than 200mph (320 km h).
a bladeless wind turbine that can generate more electricity for less. Scroll down for videocreated by Madrid-based Vortex Bladeless,
Without the need for blades, the design could reduce manufacturing costs by 53 per cent compared to conventional multi-blade wind turbines, according to the company.
can capture nearly half of the wind power in normal conditions. This is 30 per cent less than normal wind turbines. ver the last four years,
we developed a technology, from an idea to a proof of concept in the wind tunnel,
and from the wind tunnel tests to multiple wind field tests, Suriol told Renewable energy Magazine. urrently we have a Vortex with all the technical milestones developed:
That means that CAISO is operating the grid, this month, at net load (that is the system demand less solar and wind generation) more than five years ahead of forecast.
California needs more energy storage to match the duck curve Experiencing this net load years ahead of the CAISO forecast has placed not the California grid in crisis. The state's grid has sufficient flexibility today to accommodate the rapid rise of solar power,
Governor Jerry brown used his 2015 inauguration speech to call for a 50 percent renewable energy future in California.
Beyond air quality and climate change mitigation benefits, California abundant renewable energy resources provide energy with zero marginal cost and zero fuel price volatility to our citizens,
The CPUC can pull out the playbook that bestowed California with an abundance of solar energy and use it again with energy storage.
As solar energy production drops off, CAISO forecasts a 14,000-megawatt resource ramp in 2020 on that date.
we need to absorb gigawatt-hours'worth of midday solar energy for reuse later in the day or the week.
we have the abundant solar and wind resources, the innovative companies, and the open energy storage procurement proceeding that can, at a modest scale, kick-start the long-duration energy storage market.
in agriculture, more effective harvesting of solar energy and its conversion into heat via greenhouses could enable year-round production as well as access to crops not currently available in certain climates.
It's an advance that could have huge implications for everything from photography to solar power.
meaning it can gather a lot of light energy, and then scatters the light over a very large area,
this one very small optical device can receive light energy from all around and yield a surprisingly strong output.
Given the nanoresonator's capacity to absorb large amounts of light energy, the technology also has potential in applications that harvest the sun's energy with high efficiency.
In addition, Yu envisions simply letting the resonator emit that energy in the form of infrared light toward the sky,
and could enable new technologies in light sensing and solar energy conversion, "Yu says s
#An easy, scalable and direct method for synthesizing graphene in silicon microelectronics: Korean researchers grow 4-inch diameter, high-quality, multi-layer graphene on desired silicon substrates,
and lead to faster transistors, cheaper solar cells, new types of sensors and more efficient bioelectric sensory devices.
a team of researchers led by Boston College chemist Dunwei Wang achieved'unassisted'water splitting using the abundant rust-like mineral and silicon to capture and store solar energy within hydrogen gas.
'Getting there will contribute to a sustainable future powered by renewable energy.''The team, which included researchers from Boston College, UC Berkeley and China's University of Science and Technology, decided to focus on hematite's surface imperfections,
the central process behind using artificial photosynthesis to capture and store solar energy in hydrogen gas.
Shes designed a village-scale desalination system that runs on solar power. Since her system is powered by the sun,
even at the extremely low power levels characteristic of tiny solar cells. Previous experimental ultralow-power converters had efficiencies of only 40 or 50 percent.
Where its predecessors could use a solar cell to either charge a battery or directly power a device,
Ups and downs The circuit chief function is to regulate the voltages between the solar cell, the battery,
and falls depends on the voltage generated by the solar cell, which is highly variable. So the timing of the switch throws has to vary, too.
whose selection is determined by the solar cell voltage. Once again, when the capacitor fills, the switches in the inductor path are flipped. n this technology space,
With ultrathin solar panels for trim and a USB charger tucked into the waist, the Southwest-inspired garment captured enough sunshine to charge cell phones
It's an advance that could have huge implications for everything from photography to solar power.
meaning it can gather a lot of light energy, and then scatters the light over a very large area,
this one very small optical device can receive light energy from all around and yield a surprisingly strong output.
Given the nanoresonator's capacity to absorb large amounts of light energy, the technology also has potential in applications that harvest the sun's energy with high efficiency.
In addition, Yu envisions simply letting the resonator emit that energy in the form of infrared light toward the sky,
and could enable new technologies in light sensing and solar energy conversion, "Yu says s
#An easy, scalable and direct method for synthesizing graphene in silicon microelectronics (Nanowerk News) In the last decade,
and lead to faster transistors, cheaper solar cells, new types of sensors and more efficient bioelectric sensory devices.
#Flexible methane production from electricity and biomass The variable operation modes were the biggest challenge during development says Project Head Siegfried Bajohr of the Engler-Bunte Institute (EBI) of KIT.
From the products of a biomass gasification plant i e. hydrogen carbon dioxide and carbon monoxide the Demosng pilot plant directly produces methane and water by means of a nickel catalyst (SNG operation.
Then the volume flow in the plant can be doubled utilization of carbon from biomass will increase to nearly 100%and a large amount of usable waste heat will be produced by the catalyst (Ptg operation.
There it will be integrated into the gas flows of a biomass gasification plant utilizing wooden residues.
Via an effective methanation wind and solar power can be fed into the natural gas grid without any limitations.
"We have applied a petrochemical concept to biomass, "says postdoctoral researcher Michiel Dusselier.""We speed up and guide the chemical process in the reactor with a zeolite as a catalyst.
It's an advance that could have huge implications for everything from photography to solar power.
meaning it can gather a lot of light energy, and then scatters the light over a very large area,
this one very small optical device can receive light energy from all around and yield a surprisingly strong output.
Given the nanoresonator's capacity to absorb large amounts of light energy, the technology also has potential in applications that harvest the sun's energy with high efficiency.
In addition, Yu envisions simply letting the resonator emit that energy in the form of infrared light toward the sky,
and could enable new technologies in light sensing and solar energy conversion, "Yu says s
#Chemists find a way to unboil eggs UC Irvine and Australian chemists have figured out how to unboil egg whites an innovation that could dramatically reduce costs for cancer treatments, food production and other segments of the $160 billion global biotechnology industry,
#Perovskites provide big boost to silicon solar cells Stacking perovskites onto a conventional silicon solar cell dramatically improves the overall efficiency of the cell,
The researchers describe their novel perovskite-silicon solar cell in this week edition of the journal Energy & Environmental science. ee been looking for ways to make solar panels that are more efficient and lower cost,
said study co-author Michael Mcgehee, a professor of materials science and engineering at Stanford. ight now, silicon solar cells dominate the world market,
but the power conversion efficiency of silicon photovoltaics has been stuck at 25 percent for 15 years.
Mcgehee said. ou simply put one solar cell on top of the other, and you get more efficiency than either could do by itself.
rivaling commercially available silicon solar cells and spawning widespread interest among silicon manufacturers. ur goal is to leverage the silicon factories that already exist around the world,
co-lead author of the study. ith tandem solar cells, you don need a billion-dollar capital expenditure to build a new factory.
Sunlight to electricity Solar cells work by converting photons of sunlight into an electric current that moves between two electrodes.
Silicon solar cells generate electricity by absorbing photons of visible and infrared light, while perovskite cells harvest only the visible part of the solar spectrum where the photons have more energy.
Microscopic cross-section of a tandem solar cell made with two photovoltaic materials, perovskite stacked on top of CIGS (copper indium gallium diselenide).
Colin Bailie, Stanford bsorbing the high-energy part of the spectrum allows perovskite solar cells to generate more power per photon of visible light than silicon cells,
Mcgehee said. o one had made ever a perovskite solar cell with two transparent electrodes. Perovskites are damaged easily by heat and readily dissolve in water.
This inherent instability ruled out virtually all of the conventional techniques for applying electrodes onto the perovoskite solar cell
Remarkable efficiency For the experiment, the Stanford team stacked a perovskite solar cell with an efficiency of a 12.7 percent on top of a low-quality silicon cell with an efficiency of just 11.4 percent. y combining two cells
In another experiment, the research team replaced the silicon solar cell with a cell made of copper indium gallium diselenide (CIGS.
it might be possible to upgrade conventional solar cells into higher-performing tandems with little increase in cost,
We have a ways to go to show that perovskite solar cells are stable enough to last 25 years.
so it can be integrated it into ultra-small renewable energy devices, such as solar cells, data storage hardware and advancing quantum computing. uow195685 o one in the scientific community believed silicene paper could be made
a chemical engineer with joint appointments at Berkeley Lab and UC Berkeley. he recyclable catalysts we developed are capable of converting sugarcane biomass into a new class of aviation fuel and lubricants with superior cold
and lubricants from biomass optimized using life-cycle greenhouse gas assessment. Corinne Scown, a research scientist with Berkeley Lab Energy Analysis and Environmental impacts Division,
Biofuels synthesized from the sugars in plant biomass help mitigate climate change. However jet fuels have stringent requirements that must be met. et fuels must be oxygen-free,
The process developed at EBI can be used to selectively upgrade alkyl methyl ketones derived from sugarcane biomass into trimer condensates with better than 95-percent yields.
The rest of the waste biomass can be combusted to produce process heat and electricity to operate the refinery.
the strategy behind the process could also be applied to biomass from other non-food plants
and agricultural waste that are fermented by genetically engineered microbes. lthough there are some additional technical challenges associated with using sugars derived entirely from biomass feedstocks like Miscanthus
With ultrathin solar panels for trim and a USB charger tucked into the waist, the Southwest-inspired garment captured enough sunshine to charge cell phones
they were determined to craft a technology that relied on solar power noble attempt that ultimately failed because solar power,
Eventually they settled on a thermal energy storage system that uses a phase-change material to store energy in the form of ice.
and the battery circulates that thermal energy into a heat exchanger to keep milk chilled over the course of the day.
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