uses ultrasonic waves to measure the load transmitted through a ball bearing in a wind turbine. The stress on wind turbine is recorded
and then engineers can forecast its remaining service life. When a bearing is subject to a load
and is currently being tested at the Barnesmore wind farm in Donegal, Ireland by the company, Ricardo.
says Steelant. his has already been established by a Belgian supermarket chain where their forklifts are driven by hydrogen produced from an on-site wind turbine park.
Small molecules also are key elements in technologies like solar cells and LEDS. However, small molecules are notoriously difficult to make in a lab. Traditionally
y financing the innovative use of solar technologies across a broad range of industries. The country already has 4 GW of rooftop solar PV installed
000 homes and small businesses would have to install solar panels to reach the figure. Solar power is already beginning to be a hope for the future in Brazil,
A 350 MW floating solar plant was announced earlier in April, and a few days ago Minas gerais, the southeastern state of Brazil, announced that it will start the process to auction bids for the development of solar PV power plants P
Homes with rooftop solar panels and batteries can actually use energy from their solar systems during power outages and
which utilities purchase the excess electricity from solar panels that fed into the grid. In combination with net metering,
and solar electricity generators to sell their power in specific time-blocks, increasing their ability to compete with traditional power plants.
says Paul Droege inventor of the Sunport. he expense of solar panels and required ownership of a roof limit solar growth.
Solar panels are required still to make this solar energy, but you don need to own them. Sunport platform lets you access expensive solar infrastructure,
#First Offshore wind farm In U s. Under Construction In July, American offshore wind developer, Deepwater Wind, installed the first foundation for
what is expected to be the first offshore wind farm in the United states. The project will be located three miles southeast of Block island, Rhode island.
the Block island Wind farm is expected to come online in 2016. Deepwater Wind, the developer, is also planning two larger offshore projects along the Atlantic coast,
200 gigawatts (GW) of developable offshore wind potential, compared to its estimate of 11,000 GW of onshore wind potential.
Wind resources are classified on a scale of zero to seven based on their power density, and more than 66%of offshore wind in the United states is in wind power class six or seven.
In addition, offshore wind turbines are built to take advantage of the more consistent wind speeds present over the ocean,
allowing higher utilization rates for offshore generation capacity when compared with similarly sized onshore wind turbines.
However, offshore wind is significantly more expensive to build and maintain than onshore wind. Although there are currently no operating offshore wind projects in the United states
offshore wind turbine technology has grown steadily in Europe, and, to a lesser extent, in Asia. As of 2014, Europe accounted for 90%of the estimated 8. 8 GW of installed global offshore wind turbine capacity.
Offshore wind power development in Europe began in 1991 when the first offshore farm was installed off the coast of Denmark,
although the industry had little growth from that point until the 2000s. In the United states, developers have proposed building nearly 4. 9 GW of offshore wind capacity off the coasts of nine different states,
but some challenges remain even for projects that have advanced through key regulatory and market milestones.
For example Cape Wind, a 486-MW project proposed in 2001, faced significant challenges and litigation that halted its progress.
Other projects such as the Virginia Offshore wind Technology Advancement Project and Fisherman Energy Wind of New jersey have faced development hurdles despite making significant progress in project development.
Compared with Western europe, the current leader in offshore wind energy the United states is estimated to have more abundant and favorable onshore wind resources,
which are located largely in areas with low population density. So far, the high cost of domestic offshore wind projects has made them economically unattractive,
despite the availability of federal tax incentives and state policies to promote use of renewable energy.
Building and maintaining offshore wind technology is compared expensive with onshore wind projects because of challenges such as transporting equipment and workers to the sites
#Stanford Engineers Develop Solar cell Cooling Coating To Boost Efficiency A report published by Stanford details the development of a novel cooling technology that its engineers claim can improve solar panel performance.
that at higher temperatures resultant from prolonged exposure to sunlight, solar cells become increasing inefficient at converting sunlight photons into electricity.
In response to this problem the engineers developed a visibly transparent overlay more technically a silica photonic crystal overlay that increases solar cell efficiency by radiating the heat of cells away from them much like how we naturally radiate heat from our bodies to prevent overheating.
This design means that the overlay can be laid on top of an unaltered solar cell this is important since it infers that the new solution requires no additional tampering with the solar cells themselves to achieve cooling effects and enhanced cell performance.
The critical feature of the silica overlay is found in its micron-scale pattern, which is designed to maximise the radiating of heat, in the form of infrared light, out and away from the cell into space.
During testing, an overlay was fitted to a solar absorber a device that provides an analogue to the properties of a solar cell and measures absorption of solar radiation,
The bare solar absorber here has structure similar as solar cell, and is bluish. ne can observe that the structure with verlay (the second from left) has same color as the other samples,
in a typical solar cell that difference would confer a significant improvement in overall cell efficiency.
he experimentally demonstrated temperature reduction of 13°C (23°F) would translate to an absolute solar cell efficiency improvement larger than one percentage point a significant solar cell efficiency improvement.
The Stanford Report additionally noted that such a gain in energy production is predicted for a typical crystalline silicon solar cell with an efficiency of 20%.
we are actively looking into directly demonstrating solar cell efficiency improvement from our cooling strategy, by measuring the generated electricity,
when paired with a solar cell that is at the same time generating electricity. But still this must be shown under controlled conditions before we may imagine the technology being applied to the production of solar PV cells.
Investigating radiative cooling has been the primary focus of the researchersaims with the solar panel demonstration merely one,
The scientists also consider their findings to hold great potential for application over a wide range of electronic products which could benefit from passive cooling. esides solar cell,
where sunlight absorption is required either for functional (such as solar cells) or aesthetic reasons (such as maintaining the colors for cars, clothes etc
The report is part of IRENA REMAP 2030 program. frica holds some of the best renewable energy resources in the world in the form of biomass, geothermal, hydropower,
meeting rising demand for power, transport and other uses in a way that is economically sustainable and safeguards livelihoods. he report identifies four key modern technologies as having the ighest deployment potentialsfor Africa modern biomass for cooking
A shift to biomass-based cooking would reduce the use of traditional cook stoves by more than 60,
It works by converting electric power from solar panels or a small onboard nuclear reactor into forward thrust.
The organic molecules of this chemical are used widely in electronic devices such as solar cells, LEDS and transistors.
Research has made now significant progress towards using sustainable biomass, like wood, as an alternative raw material for chemical production.
The US research group under Professor Anthony J. Arduengo III is interested particularly in developing industrially applicable methods for using materials derived from wood biomass for the sustainable manufacture of a broad array of basic chemicals such as, for example,
and are anticipated also as materials for next-generation energy saving power devices and solar cells. However, the quality of Gan crystals does not come up to that of conventional semiconductor materials such as silicon (Si)
The aircraft's wings are covered by more than 17,000 solar cells that recharge the plane's batteries.
"The KU Leuven researchers developed a new technique by applying a petrochemical concept to biomass."
The recent past has seen such mega-deals as the 392-megawatt concentrated solar plant called Ivanpah,
However, it costly and out-of-favor, given that it is much easier and much less expensive to put rooftop solar panels on homes
with windmills+solar panels likely to follow e
#Medical marijuana Sparks New Technology The emerging cannabis industry has created not only thousands of new jobs, it has also given birth to a new technology niche.
and are used therefore in solar panels. However, these materials also oxidize (or rust) on the surface
or to generate electricity via flexible solar cells. A working prototype of the technology will be on display from Apr 13 to 17, at the Hannover Messe industrial trade show d
#Graphene device makes ultrafast light to energy conversion possible Converting light to electricity is one of the pillars of modern electronics, with the process essential for the operation of everything from solar cells and TV remote control receivers through to laser communications
and a AC-DC-AC power converter from wind turbine maker Northern Power systems. e start by taking a generator
which has build a 1-megawatt wind farm and backup diesel generator array for the Aleutian island town of Sand Point,
#Solarcity Has a New Plan to Make Distributed Energy an Integral Part of the Grid Solarcity has an idea for how to help California utilities tap their own customers as an integral part of their billion-dollar distribution grid plans:
In a white paper this week, Solarcity wrote that the structure could be a key lever for customer-owned distributed energy resources (DERS) to compete for billions of dollars of distribution grid projects being planned by the state big three utilities.
said Ryan Hanley, Solarcity senior director of grid engineering solutions, in an interview. fter you find out what you can do with your pricing signals,
and control between grid operators and, say, utility-scale solar and wind farms. Still there are methods to determine the effective load carrying capacity of distributed renewables at scale,
Solarcity proposes building some headroom into how the distribution loading order calculates the capacity of customer-owned DER,
As for how companies like Solarcity will go about proving their DERS can do what they say they can,
Solarcity CTO Peter Rive suggested at Thursday meeting that utilities be allowed to earn returns on distributed energy resources as-a-service. ou could meet that load growth with standalone solar.
Solarcity is already selling Tesla behind-the-meter batteries with its solar systems, and has been testing their ability to work in concert as an aggregated grid resource.
and there will be some weight for the craft, solar panels and communications, but we think there would be 20 kilograms left over for the payload,
and as a solar panel. When the battery fall into the sun rays, it becomes slightly tinted:
Development is the next step to the windows of the future, acting as solar panels. They will not only automatically obscure the sunlight,
It has a solar panel to charge the battery, to keep it working in places without electric power.
used subcritical fluid technology to extract phenolic compounds from the potato biomass. Traditional methods use methanol, a toxic solvent.
the overall goal is to achieve complete use of the available biomass. Her team, including visiting scientists from Brazil and China,
and to gasify what left of the biomass residue to obtain hydrogen. That research is ongoing a
Solar cells power the equipment, while batteries store power when there isn't enough sunlight. Additionally, when conditions in the container are just right,
Clarke said that a solar technology firm is needed now to finish development and help with construction.
really tiny animal the microscopic tardigrade is the inspiration behind a new material that could improve the efficiency of things like LED LIGHTS and solar cells.
and solar cells noticed that they could sometimes produce glass-coated devices with structured, or"oriented"molecules."
Meanwhile, those who build solar cells want as much light as possible to move"down,"toward the substrate,
as well as highly efficient photovoltaic cells (known as gallium arsenide photovoltaic cells) to convert that concentrated solar energy into electricity. Though concentrated solar thermal power
"In other words, the difference between this technology being classified as a death ray as opposed to a solar array is merely a matter of how the reflectors are angled.
Photovoltaic cells used by the Sunflower have a max operating temperature of around 105 degrees Celsius,
Its gallium arsenide photovoltaic cells though more efficient than standard PV cells, are not cheap. Add up construction costs and the costs of the fancy cooling system,
when exposed to sunlight without the need for a separate solar cell. The transparent battery was developed first by the researchers,
This research outcome potentially allows for great flexibility in the design and optimization of electronic and optoelectronic devices like solar panels and telecommunication lasers.
as they are normally either purely organic, for example in solar cell conducting polymers, or entirely inorganic, such as oxide or metallic glasses.
Where solar panels are concerned, the suppression of reflected light translates into a 3-6 percent relative increase in light-to-electricity conversion efficiency and power output of the cells.
Coupled with the superhydrophobic self-cleaning ability, this could also substantially reduce maintenance and operating costs of solar panels.
If this voltage is generated by sunlight in a solar cell, then you could store solar energy by generating hydrogen gas.
because an efficient hydrogen generation preferably proceeds in an acidic electrolyte corroding very fast solar cells. Electrodes that so far have been used are made of very expensive elements such as platinum or platinum-iridium alloys.
it consists of chalcopyrite (a material used in device grade thin film solar cells) that has been coated with a thin, transparent, conductive oxide film of titanium dioxide (Tio2.
leading to the observed high photocurrent density and photovoltage comparable with those of a conventional device-grade thin-film solar cell.
The first application as part of DOE's Bioenergy Science Center was in the examination of plant cell walls under several treatments to provide submicron characterization.
and are used therefore in solar panels. However, these materials also oxidize (or rust) on the surface
Vermont scientists invent new approach in quest for organic solar panels and flexible electronics University of Vermont scientists have invented a new way to create
and farther--aiding the hunt for flexible electronics, organic solar cells, and other low-cost alternatives to silicon.
BETTER SOLAR CELLS Though the Nature Communications study focused on just one organic material, phthalocyanine, the new research provides a powerful way to explore many other types of organic materials, too--with particular promise for improved solar cells.
A recent U s. Department of energy report identified one of the fundamental bottlenecks to improved solar power technologies as"determining the mechanisms by
and solar technologies,"says Furis, who directs UVM's program in materials science, "and to do that we need a deeper understanding of exciton diffusion.
#Stanford engineers invent transparent coating that cools solar cells to boost efficiency: The quandary: The hotter solar cells get,
the less efficiently they convert sunlight to electricity; The fix: A new transparent overlay allows light to hit the cells
while shunting heat away Now three Stanford engineers have developed a technology that improves on solar panel performance by exploiting this basic phenomenon.
Their invention shunts away the heat generated by a solar cell under sunlight and cools it in a way that allows it to convert more photons into electricity.
The hotter solar cells get, the less efficient they become at converting the photons in light into useful electricity.
patterned silica material laid on top of a traditional solar cell. The material is transparent to the visible sunlight that powers solar cells,
but captures and emits thermal radiation, or heat, from infrared rays.""Solar arrays must face the sun to function,
even though that heat is detrimental to efficiency, "Fan said.""Our thermal overlay allows sunlight to pass through,
In their new paper, the researchers applied that work to improve solar array performance when the sun is beating down.
The Stanford team tested their technology on a custom-made solar absorber-a device that mimics the properties of a solar cell without producing electricity-covered with a micron-scale pattern designed to maximize the capability to dump heat
Their experiments showed that the overlay allowed visible light to pass through to the solar cells, but that it also cooled the underlying absorber by as much as 55 degrees Fahrenheit.
For a typical crystalline silicon solar cell with an efficiency of 20 percent, 55 F of cooling would improve absolute cell efficiency by over 1 percent,
which are preferred also sites for large solar arrays. They believe they can scale things up so commercial and industrial applications are feasible
#Production of Special Coating to Increase Efficiency of Solar cells in Iran Results of the experiments prove the increase in the efficiency of the produced cells.
The solar cells can be used to produce electricity for industrial applications, including domestic appliance, automotive and aerospace after being produced mass.
In recent years, dye sensitized solar cells have become very important as the third generation of solar cells. The cheap equipment has very simple production technology
and study the performance of a type of coating to be used in dye sensitized solar cells. Titanium dioxide nanoparticles doped with elements such as strontium
chemical structure and composition of the coatings have been controlled in a way that it increases the current density in short circuits of dye sensitized solar cells.
and solar cells also rely on small molecules. mall molecules have had already a big impact on the world,
The team's next step is to use the same strategy for increasing the material's light absorption abilities to create a better material for solar cells and photodetectors."
3-D images of nanoscale objects (w/video)( Nanowerk News) To design the next generation of optical devices, ranging from efficient solar panels to LEDS to optical transistors,
or in solar panels to improve the absorption of light by the active materials.""The technique could even be modified for imaging biological systems without the need for fluorescent labels.
Other promising devices include very inexpensive solar cells for low-cost and low-carbon electricity generation and ultra-efficient building lighting which could substantially lower electricity consumption.
It converts solar rays into microwaves--using conventional photovoltaic solar panels--and then beams the microwave's energy to microwave collector farms at designated locations On earth.
ranging from cameras to solar cells. It also forms an essential step in data communication applications, since it allows for information carried by light to be converted into electrical information that can be processed in electrical circuits.
and optimization of electronic and optoelectronic devices like solar panels and telecommunication lasers. black phosphorus To truly understand the significance of the team's findings,
"We see possible applications in thermoelectrics, batteries, catalysis, solar cells, electronic devices, structural composites and many other fields, enabling a new level of engineering on the atomic scale
#A new material for transparent electronics he performance of solar cells, flat panel displays, and other electronics are limited by today's materials.
and optically transparent are needed for more efficient solar cells, light detectors, and several kinds of electronic devices that are by nature transparent to visible light.
The development of high-performance transparent conducting oxides (TCOS) is critical to many technologies ranging from flat panel displays to solar cells.
#Quantum dot solar cell exhibits 30-fold concentration We've achieved a luminescent concentration ratio greater than 30 with an optical efficiency of 82-percent for blue photons,
Low-cost alternatives to todays photovoltaic solar panels are needed for the immense advantages of solar power to be realized fully.
Unlike conventional solar cells that directly absorb sunlight and convert it into electricity, an LSC absorbs the light on a plate embedded with highly efficient light-emitters called lumophores that then re-emit the absorbed light at longer wavelengths, a process known as the Stokes shift.
This re-emitted light is directed to a micro-solar cell for conversion to electricity. Because the plate is much larger than the micro-solar cell,
the solar energy hitting the cell is concentrated highly. With a sufficient concentration factor, only small amounts of expensive III-V photovoltaic materials are needed to collect light from an inexpensive luminescent waveguide.
and improves the conversion process of solar cells. It also opens up new avenues in: noninvasive 3d biomedical imaging photonic chips aerospace photonics micromachines laser tweezing the process of using lasers to trap tiny particles.
using high efficiency solar cells to power water electrolysis("A 24.4%solar to hydrogen energy conversion efficiency by combining concentrator photovoltaic modules and electrochemical cells").
which includes a photovoltaic cell using a high-quality semiconductor crystal similar to the ones for lasers
but if operated in countries with high solar irradiance it would be possible to generate solar electricity at low cost owing to the high energy conversion efficiency.
silicon solar cells are stacked typically and thus hundreds of micrometers thick. If they were any thinner, light would simply pass through them.
It was designed with all the latest equipments like GPS, video and audio, solar panels 3g facilities and foam arms to hug
The group came up with a method that uses solar panels to charge a bank of batteries.
But each GENESI node and sensor includes a miniature wind turbine that harvests energy from passing trains.
Typically, that means installing large, expensive solar panels, which is not practical for those who cannot afford it
el-Haite said. think it is the most important solar plant in the world. ach parabolic mirror is 12 metres high
#Shortening Organic solar cell Production One of the building blocks of the solar panel, solar cells are responsible for converting solar energy into electricity.
Most commercial solar cells are made from the inorganic crystalline silicon. Now, the U s. Dept of energy (DOE) Oak ridge National Laboratory (ORNL) has developed a method to save steps in the organic solar cell manufacturing process by introducing solvents into solar cell film production.
Usually, the thin filmssed by organic bulk heterojunction solar cellsre created by mixing conjugated polymers and fullerenes,
According to the DOE, organic photovoltaic solar cells have low efficiencies due to their small excition diffusion lengths
However, the information obtained from the neutron reflectometry will help scientists boost organic solar cell performance, according to ORNL. ptimization of photovoltaic properties provides information to manufacture solar cells with fully controlled morphology
and device performance, said Nuradhika Herath, the lead of the study. hese findings will aid in developing dealphotovoltaics,
In contrast to conventional solar photovoltaic cells that produce electricity directly from sunlight, solar thermal generation of energy is developed as a large power plant in
The research, supported by DOE's Bioenergy Technologies Office, has implications for the energy efficiency and cost of catalytic upgrading technologies proposed for use in biorefineries.
#New tidal energy system could help POWER UK, say developers A British company, in conjunction with Oxford university researchers, believes it has devised a way to overcome this obstacle by creating a new type of horizontal axis turbine that can be used underwater at depths of up to 30 meters, at an economical cost.
Guy Houlsby, professor of civil engineering at Oxford university, says their design is an improvement on the vertical Darrieus wind turbine used in some turbine systems."
"A one kilometer (0. 6 mile) long tidal energy fence, capable of creating 30 megawatts at peak performance,
#New solar battery outperforms conventional lithium-iodine batteries By combining a solar cell and a battery into a single device,
which is harvested by a flat solar panel on top of the battery. Below, the researchers have installed a new type of electrolyte that replaces the lithium-cobalt oxide or lithium iron phosphate of regular battery electrolytes with water."
by making the solar panel a solid sheet rather than a mesh, because it no longer needs air flow to function,
"The solar cell is also super-efficient, known as a dye-sensitised solar cell. The team used a red dye called ruthenium to tune the wavelength of light it captures
while the solar panel made up the other 20 percent. The team now wants to work on increasing this percentage,
Hydrogen could even be used as an inexpensive energy storage technology at the household level to store energy from rooftop solar cells.
#This transparent lithium-ion battery charges itself with sunlight Researchers in Japan have invented a rechargeable lithium-ion battery that can charge itself using sunlight-no solar cell required.
and the team behind it hopes to see the technology integrated into a mart windowthat can act as both a large rechargeable battery and a photovoltaic cell all at once.
In addition to Tu's malaria drug, Artemisinin, China has pioneered also development of solar and wind technology, and is working on trains that will reach 500 km h.
direct air capture works just like these new solar cells that split water into a hydrogen fuel-the CO2 recycling plant extracts CO2 from the air using a giant complex of fans,
A major limitation of solar and wind technologies, on the other hand, is that they require specific technologies to capture
which has traditionally been used for applications including transistors and solar cells. With the use of lithium ions as dopant, researchers found it offered significant electronic conductivity
organic polymers could potentially be synthesized from biomass.""Organic-conjugated polymers are emerging as a materials class for energy-related applications,
"This means we have demonstrated the most important step toward a hydrogen economy--producing distributed and affordable green hydrogen from local biomass resources,
the Virginia Tech team used dirty biomass--the husks and stalks of corn plants--to create their fuel.
or better than more expensive metal-based catalysts used in alkaline and acidic fuel cells and in dye-sensitized solar cells."
and combined with water for the synthesis of molecular products that form biomass, "says Chris Chang, an expert in catalysts for carbon-neutral energy conversions."
and help to improve processes such as preparation of inorganic ceramics and thin-film solar cells. The experiments were performed with the help of Yu-chen Karen Chen-Wiegart, Feng Wang, Jun Wang and their co-workers at Beamline X8c
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