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  • Floating solar farm reflects China's clean energy ambitions
    Floating solar farm reflects China's clean energy ambitions Beijing (AFP) June 11, 2017 As the United States was withdrawing from the Paris climate pact, China's clean energy ambitions were being reflected in the launch of the world's largest floating solar farm. 40w solar home system The 40-megawatt power plant has 160,000 panels resting on a lake that emerged after the collapse of a coal mine in central Anhui province. 40w power TV solar generator It is part of Beijing's effort to wean itself off a fossil fuel dependency that has made it the world's top carbon emitter, with two-thirds of its electricity still fuelled by coal. mosquito killer The solar facility went online around the time of President Donald Trump's much-criticised June 2 decision to withdraw from the international accord aimed at saving the planet from climate change catastrophe. mosquito trap His move shifted the spotlight onto China and whether it will take on the leadership mantle in the fight against global warming. solar mosquito killer Days after his announcement -- and by coincidence -- Beijing hosted an international conference on clean energy. It was an opportunity for China, which already produces two-thirds of the world's solar panels, to boast of its commitment to accelerating investment and reforms for greater use of renewable energies. solar dc fan "The US's withdrawal from the Paris agreement offers China an unprecedented opportunity to take the lead in climate change," energy expert Frank Yu of Wood Mackenzie consultancy told AFP. solar rechargeable fan - China dominating - The Beijing forum put a spotlight on efforts by Chinese authorities and companies to develop renewable energy. mobile charging system "Beijing may feel like it's dominating the game", especially because "China is already moving rapidly -- with or without the US -- in terms of investments" and innovation, Alex Perera, director of the WRI Energy Program, told AFP. mobile charging solar kit It has been the world's largest investor in clean energy since 2012, spending $88 billion on wind and solar power last year, according to Bloomberg News. solar power home lights China's solar capacity more than doubled in 2016. The official goal is for 20 percent of Chinese power consumption to come from low-emission energy, including nuclear, by 2030, compared to 11 percent currently. solar power mosquito trap "We must take these promises seriously," said Helen Clarkson, president of the Climate Group. solar emergency lighting generator Beijing hopes to combat endemic air pollution, but is also motivated by financial interests, as the country "is already reaping the economic benefits" of clean energy, Clarkson said. solar power bank - 'Wake people up' - 20000mAh power bank With the US administration out of the Paris pact, China has signalled its readiness to deal with US local governments to advance its climate agenda. 20000mAh solar charger California Governor Jerry Brown used the Beijing conference to seek partnerships with China on climate change, and was given the red-carpet treatment by Chinese President Xi Jinping. solar wall fan Brown, who has criticised Trump's June 2 decision, signed a memorandum of understanding with Xi as well as an agreement with Sichuan province. "I'm trying to wake people up to deal with climate change," Brown told AFP in Beijing. solar ceiling fan "China is an ally in that and it has tremendous resources and I want to work with those resources in a way that will accelerate our climate action," he said. solar stand fan Xie Zhenhua, China's top climate negotiator, made it clear at the clean energy forum: "We will not only continue to strengthen cooperation with California, but also strengthen the concrete cooperation with other US states, cities, enterprises and scientific research institutions in fields including clean energy." solar flood lights US energy secretary Rick Perry was also at the forum but failed to get the same reception as Brown, meeting China's seventh-ranked official instead of Xi. dynamo solar lantern Perry insisted Washington was not stepping back from its clean energy commitment. solar system power tv "It's good for China to step in and take on the issue and to attempt to be the leader in the world for emissions reduction," he said, adding: "The fact of the matter is the US is number one still." rechargeable solar fan Solar home lighting system supplied by MTOSOLAR

    2017 06/14

  • SCE and G Launches South Carolina's Largest Community Solar Program
    SCE and G Launches South Carolina's Largest Community Solar Program illustration only SCE and G have introduced South Carolina's largest community solar program (16 MWac), making solar generation available to electric customers who cannot, or do not wish to, install rooftop solar panels. Through the SCE and G Community Solar Program, residential customers and eligible nonresidential customers may now purchase or subscribe to solar panels at several solar facilities to be constructed within SCE and G's service territory.solar light In exchange for the electricity produced by their panels, participants will receive credits on their monthly utility bills there by lowering their monthly expenses. The program is available to residential electric customers who own or rent their homes, and to schools, churches and municipalities.solar desk light "We often hear from customers who desire the cost savings and environmental benefits of solar energy, so we're really proud to bring those advantages to even more customers," said Danny Kassis, vice president of customer service and renewables for SCE and G. "For some customers, this program creates a pathway to solar energy where there wasn't one before." solar lamp SCE and G chose Clean Energy Collective (CEC), a national leader in community solar programs, and their RooflessSolar product, to implement its program. SCE and G expects to interconnect the first two of three CEC-developed solar facilities by the end of this year. As part of their community solar solution - Community Solar Platform- CEC will facilitate customer enrollment and provide monitoring and production tracking services. The solar facilities will use panels that track the sun's path across the sky, increasing power generation up to 20 percent more than traditional fixed or rooftop systems. SCE and G is responsible for all maintenance of the sites.60w solar led power system "One of the largest utility-sponsored programs in the country, SCE and G's Community Solar Program demonstrates SCE and G's commitment to providing customers a choice in how they meet their power needs, and the growing renewable energy movement in South Carolina," said Paul Spencer, chief executive officer of Clean Energy Collective. "We are proud to be working with SCE and G to bring community solar to South Carolina on a large scale." 100w solar home system SCE and G played a key role in developing the 2014 South Carolina Distributed Energy Resource Program Act, which established equitable net metering rules, introduced distributed energy programs and allowed customers access to solar leasing options. solar energy system SCE and G energized its first utility-scale solar facility in December 2015 and has announced additional developments that will help the utility exceed its goal of generating at least 42 megawatts (MW) of utility-scale solar by 2020. SCE and G also provides customer programs to support the development of more than 42 MW of customer-scale solar generation by 2020, and already has interconnected more than 4,000 of its customers. 5000w solar home system 60w solar home system supplied by MTOSOLAR

    2017 06/13

  • Solar cells more efficient thanks to new material standing on edge
    Solar cells more efficient thanks to new material standing on edge Researchers from Lund University in Sweden and from Fudan University in China have successfully designed a new structural organization using the promising solar cell material perovskite. The study shows that solar cells increase in efficiency thanks to the material's ability to self-organise by standing on edge. UFO Music Light Up Spinning Top The current research study deals with perovskite, a new and promising material in the context of solar cells. However, in its regular form, the material is very sensitive to moisture. It simply dissolves in contact with water, and even normal humidity deteriorates the material within hours or minutes. Now the researchers appear to have overcome that problem. Super light up spinning top toys led spinning top "We have succeeded in producing thin sheets with a water-repelling surface, making the whole construction much more stable. In addition, we have succeeded in orienting the sheets so as to obtain acceptable solar cells, with an efficiency of ten per cent", says Tonu Pullerits, professor of chemical physics at Lund University. toys for children flashing spinning top Tonu Pullerits sees great development potential for solar cells based on perovskite, thanks to the outcome of the current study. The researchers not only built thin sheets out of the material to achieve water-repelling surfaces but also discovered, to their surprise, that these perovskite sheets self-organised in a way that clearly increased efficiency. 2017 New Design Toy For Children Spinning Top Hot Spinning Tops Since the sheets are so thin, many need to be layered on top of each other in order for the absorption of sunlight to be sufficient. A problem arises at this point in that the water-repelling surfaces do not allow electrons to circulate freely within the material. It becomes difficult for the electrons to jump from one sheet to another, which reduces efficiency in the solar cells. Made in China fidget toy hand spinner spinning top The researchers first tested two different water-repelling surfaces. They expected one version to give better results, enabling the electrons to jump more easily from one sheet to another. Instead, the outcome was the opposite - the second version gave much better results. This surprised the researchers, who then started new experiments in order to understand why. Classic Toys gyro Spinning Top "Here, our laser experiments were crucial. We could show that the sheets with the second surface material self-organised in such a way as to stand on edge instead of lying flat against one another", says Tonu Pullerits. Finger Spinning Top, Fidget Gyro Thanks to the self-organising structure of the sheets, the electrons were able to move freely between the contacts, considerably increasing the efficiency of converting the solar energy to electricity. Tonu Pullerits sees the result as an important step on the way to constructing stable and efficient solar cells out of perovskite. Finger Gyro Fidget Spinner Spinning Top "Stability is a key issue for solar cells", he says. Promotional toys cheap plastic mini color spinning tops Finger spinning top supplied by MTOSOLAR

    2017 06/01

  • Next-gen solar cells could be improved by atomic-scale redesign
    Next-gen solar cells could be improved by atomic-scale redesign Fresh (L) and degraded (R) solar cells are pictured. Credit Imperial College London Researchers have uncovered the exact mechanism that causes new solar cells to break down in air, paving the way for a solution. su kam solar home lighting system Solar cells harness energy from the Sun and provide an alternative to non-renewable energy sources like fossil fuels. However, they face challenges from costly manufacturing processes and poor efficiency - the amount of sunlight converted to useable energy. solar power system for home Light-absorbing materials called organic lead halide perovskites are used in a new type of solar cells that have shown great promise, as they are more flexible and cheaper to manufacture than traditional solar cells constructed of silicon. off grid hybrid solar wind power system However, perovskite cells degrade rapidly in natural conditions, greatly decreasing their performance in a matter of days. This is one reason they are not currently widely used. Previously, a team led by scientists from the Department of Chemistry at Imperial discovered that this breakdown is due to the formation of 'superoxides' that attack the perovskite material. These superoxides are formed when light hitting the cells releases electrons, which react with the oxygen in the air. Now, in a study published in Nature Communications, the team have determined how the superoxides form and how they attack the perovskite material, and have proposed possible solutions. plug and play solar system Working with Dr Christopher Eames and Professor Saiful Islam at the University of Bath, the team found that superoxide formation is helped by spaces in the structure of the perovskite normally taken up by molecules of iodide. Although iodide is a component of the perovskite material itself, there are defects where iodide is missing. These vacant spots are then used in the formation of superoxides. 10kw wind solar hybrid system The team found that dosing the material with extra iodide after manufacturing did improve the stability, but that a more permanent solution could be to engineer the iodide defects out. mini home solar power system Lead author of the new study, Nicholas Aristidou from the Department of Chemistry at Imperial, said: "After identifying the role of iodide defects in generating superoxide, we could successfully improve the material stability by filling the vacancies with additional iodide ions. This open up a new way of optimising the material for enhanced stability by controlling the type and density of defects present." 2kw solar system price Lead researcher Dr Saif Haque from the Department of Chemistry at Imperial added: "We have now provided a pathway to understand this process at the atomic scale and allow the design of devices with improved stability." solar panel system 3000w Currently, the only way of protecting perovskite cells from degradation by air and light is to encase them in glass. However, perovskite solar cells are made from flexible material designed to be used in a range of settings, so the glass encasement severely limits their function. Dr Haque said: "Glass encasement restricts movement and adds weight and cost to the cells. Improving the perovskite cell material itself is the best solution." home solar system india The team hope to next test the stability of the cells in real-world settings. The cells would be exposed to a combination of both oxygen and moisture, testing the cells in more relevant scenarios. 5kw solar system price 1kva solar system is supplied by MTOSOLAR

    2017 05/15

  • Atomic-scale study could pave the way for better, longer-lasting solar cells
    Atomic-scale study could pave the way for better, longer-lasting solar cells Solar cells are slowly becoming more efficient. But the newest, most promising light-absorbing material used in solar cells, organic lead halide perovskites, doesn't last very long. After just a few days, it can lose its efficiency advantages. kit solares Researchers at Imperial College London have identified the mechanism that causes perovskite cells to degrade so quickly. Their findings could pave the way for a more efficient, longer-lasting solar cell. Previous research by ICL chemists showed "superoxides" work to break down the perovskite material. Now, ICL researchers have discovered how superoxides form and do damage. kit solarrs When light hits perovskite, electrons are released and react with oxygen to form superoxides. The formation of superoxides is aided by gaps in the perovskite nanostructure, gaps normally occupied by iodide. Superoxides take advantage of these iodide-less defects. solar kit 10W Researchers were able to prolong the lifespan of perovskite cells by applying an extra coat of iodide, but a better solution may require scientists to rethink the perovskite manufacturing process and prevent defects from forming. "After identifying the role of iodide defects in generating superoxide, we could successfully improve the material stability by filling the vacancies with additional iodide ions," lead researcher Nicholas Aristidou, a chemist at ICL, said in a news release. "This opens up a new way of optimizing the material for enhanced stability by controlling the type and density of defects present." led emergency lamp Currently, engineers use glass to protect perovskite cells from oxidation, but the strategy limits the versatility offered by the flexible perovskite material. emergency light "Glass encasement restricts movement and adds weight and cost to the cells. Improving the perovskite cell material itself is the best solution," ICL chemist Saif Haque said. solar indoor lighting Thanks to the latest research -- published in the journal Nature Communications -- improved perovskite cell materials may not be far off. "We have now provided a pathway to understand this process at the atomic scale and allow the design of devices with improved stability," Haque said. Solar energy in Shenzhen china kit solarrs supplied by MTOSOLAR

    2017 05/14

  • First test flight of stratospheric solar plane
    First test flight of stratospheric solar plane The first solar plane aimed at reaching the stratosphere made an initial low-altitude test flight over Switzerland Friday. Portable solar lamp The SolarStratos, a super-light, sleek, white two-seater aircraft with long wings covered with solar panels, took off from Payerne at 8:00 am (0600 GMT), according to an AFP photographer at the airbase in western Switzerland.Portable solar lantern "The maiden flight of the prototype ... went off without a hitch," the SolarStratos team said in a statement.Dynamo solar lantern Pilot Damian Hischier took the craft for a seven-minute test flight, reaching an altitude of 300 metres (nearly 1,000 feet), it said.Led solar camping light "The group will now study the test flight results before scheduling a longer flight at higher altitude," the statement added.Solar camping lantern Eventually, the plane is expected to be able to fly at an altitude of 25,000 metres (82,000 feet), an impossible feat using a propulsion-driven aircraft.Led solar lantern with mobile charging Swiss adventurer Raphael Domjan, who is behind the project, aims to take the plane on its first stratospheric flight next year. - Harness potential - "We must continue to work hard to learn how to harness the potential of this solar-powered treasure," he said Friday. Camping lantern "We want to demonstrate that with current technology, it is possible to go beyond what fossil fuels offer." Rechargeable lantern The SolarStratos is 8.5 metres long, with long wings covered with 22 square metres (237 square feet) of solar panels, which are meant to provide it with 24 hours of autonomous flying time. led lantern The plane weighs just 450 kilos (992 pounds). portable outdoor led camping lantern Domjan, who in 2012 became the first person to sail around the world in a fully solar-powered boat, is aiming to go on a five-hour mission into the stratosphere: two hours up and three hours back. moroccan hanging lantern The stratosphere lies above Earth's lowest atmospheric layer, called the troposphere.solar lantern with mobile phone charger At middle latitudes, the stratosphere runs from a lower boundary of about 10,000 metres to an upper boundary of about 50,000 metres. Until now, reaching the stratosphere has required large quantities of energy or helium. hand lantern Reaching an altitude of 25,000 metres will pose huge technical and human challenges, SolarStratos points out on its website. rechargeable camping lantern The plane and pilot will also be subject to temperatures as low as -70 degrees Celsius (-94 degrees Fahrenheit), it said. led lantern light And for weight reasons, the aircraft will not be pressurised, forcing Domjan to wear a spacesuit, meaning he will not be able to get out of the plane using a parachute in the case of an emergency, SolarStratos said. adventuridge rechargeable led camping lantern The project comes after two of Domjan's compatriots, Bertrand Piccard and Andre Borschberg, completed the first-ever round-the-globe trip in a solar plane last July, in a bid to showcase the possibilities for the future of renewable energy. solar powered lantern camping lantern rechargeable supplied by MTOSOLAR

    2017 05/10

  • The Solar PV Life Cycle Dilemma
    The Solar PV Life Cycle Dilemma Historically and in essence, electric utilities simply do not buy 20- to 25-year energy generation technologies. In fact, utilities and public works organizations seldom if ever build on such a short time schedule. It is simply not practical or profitable to build a 25-year coal, nuclear, oil, gas or hydro project. Utility infrastructure development, engineering and construction do not lend themselves to short-term energy generation, financing or thinking. 5kw off grid solar pv system There could be a message in this for the solar PV industry, where the present 20- to 25-year model is an anomaly that is slowing progress for the industry on our road to maturity. While price pressure has driven the industry thus far, is it possible that a number of important issues have been ignored? Our logic flows in the following process. solar fan & lighting system A project is planned; land is identified, tied up either in purchase or lease; and entitlements and other agreements are secured that include long-term agreements for and with utilities, grid operators, government agencies and others. The project is then put up for EPC bidding, designed, graded and fenced; roads and substations are built, all taking a substantial amount of time, energy, effort and fiscal resources. solar panel kits for home grid system This does not include the base PV plant itself, which is also complex and expensive. portable solar power system After all of this effort, the plant itself is often compromised in a rush to deliver an energy generator that`s primary focus is on being inexpensive. Slim specifications are generally assembled for EPC bidding that places the vast majority of decisions in the hands of the EPCs, not the owners. The challenge here is that if you have five EPCs bidding, the owner can or will end up with five different plant offerings. It may not necessarily be the best offering for the best plant life or levelized cost of energy. Historically, the traditional values utilities require in projects include reliability, availability, maintainability, testability, and safety, which in the PV industry today tend to become secondary or tertiary issues. In essence, if it isn`t clearly detailed and required in the project specification prior to design, owners should not expect these traditionally valuable items. This is not negligence due to the EPC, it is simply because they were never required in initial bidding documentation. portable solar system Today, specifications for PV plants are minimal, whereas for all other energy generation technologies, they tend to be quite detailed and specific. This raises and supports a number of questions as to: [Is this the right model for a viable long-term and cost-effective approach to delivering energy?" 10kw home solar power system At the beginning of the existing approach, insufficient weight and discussion is given to what happens in years 10, 15 and 20, much less year 26 if any. This assumes that the plant actually lasts that long. In fact, if the plant has not been designed for a fuller more robust life: [What are the odds that plant will actually meet the initial design life?" solar cell system Issues of repowering are presently considered esoteric, something to be discussed over a drink, however not important enough, seemingly, to be a key element of the planning process. If this were not the case, then each PV project would include a repowering and a detailed site restoration plan. 15kw solar system Once all of the preliminary work has been completed and a plant has been built, how many issues were not given the full attention that they might have been if it was any other energy generation technology? 4kw solar system We proposes that this issue becomes a greater part of the discussion in the PV industry and that the existing business model be challenged. That challenge should result in a new model that is more preemptive in nature. After all, once you`ve put that entire infrastructure in, [How much more does it cost to meet existing utility requirements versus tearing the plant out between years 12 and 25 or having to do a major rebuild?" 150kw solar power system Logic and finance appears to favor the longer-term approach. More importantly, it gives a far better opportunity for utility companies and/or other buyers of energy to buy consistently reliable, available, maintainable, safe and economically viably priced energy. solar power system for home for pakistan solar desalination system supplied by MTOSOLAR

    2017 05/08

  • New Solar Study Examines Data From 200 Ground Stations on Six Continents
    New Solar Study Examines Data From 200 Ground Stations on Six Continents By Renewable Energy World Editors Finland-based Vaisala last week released a paperthat compares observational data from nearly 200 ground stations across six continents with satellite-derived irradiance records from five different versions of the company`s global solar dataset. solar prepaid systems The company said that the results of the study indicate that Vaisala's values for global horizontal irradiance (GHI) - the key variable for PV projects - have a standard deviation of bias error, or uncertainty, of 4.4-4.9 percent, depending on the version of the dataset. solar charging systems [Vaisala has been working actively within the energy industry since 2009 to quantify and reduce solar resource uncertainty worldwide," Gwendalyn Bender, head of solar services, Vaisala, said in a statement. "Over the years, we have seen how significantly local factors, such as pollution, dust, or seasonal variation, can influence the accuracy of solar resource information - and thus a project's future solar power generation. In India, for instance, aerosol levels have changed dramatically over the past five years." solar generator 60w Bender also noted that these regional differences are often better captured by using a different aerosol or turbidity input or by employing a different irradiance model. [By providing multiple, validated datasets that are processed consistently across the globe, our clients can now compare the results to find the solar data source that best fits local conditions," Bender said. solar lease Solar prepaid home system supplied by MTOSOLAR

    2017 05/03

  • More Than Half of Utility-scale Solar PV Systems Track the Sun Through the Day
    More Than Half of Utility-scale Solar PV Systems Track the Sun Through the Day April 26, 2017 By PennEnergy Editorial Staff Source: U.S. Energy Information Administration The electricity generated by a solar PV system depends on the orientation and tilt of the PV panels, and in some cases, its ability to track the sun throughout the day. Because photovoltaic panels operate more efficiently when oriented directly at the sun, some systems use solar-tracking technology to increase electricity generation by rotating the panels along one or two axes. More than 50 percent of the operating utility-scale solar PV systems in the U.S. use some form of tracking technology, and those systems tend to be located in the Southwest, where solar resources are more favorable. solar dc home system EIA`s annual survey of electric generators captures detailed technology information about the nation`s power plants; the most recent report provides information as of the end of 2015. EIA`s monthly survey provides more recent, but less detailed, information on utility-scale power plants. Since the end of 2015, another 6.5 GW of solar PV capacity has been added, based on data through January 2017. led flood lights Because of the cost of solar-tracking units and the differences in weather and solar insolation (exposure to the sun) across the U.S., solar-tracking units may not be the most economic choice for producers in some regions. Fixed-tilt solar PV units accounted for 80 percent, or 2,468 MW of capacity, of all utility-scale solar PV units operating in 2015 in the eastern U.S. (i.e., east of the Mississippi River). 100w led tunnel lights In states west of the Mississippi River, fixed-tilt solar PV units accounted for just 37 percent (3,904 MW) of total solar PV unit capacity in 2015, and single-axis solar PV units accounted for 56 percent. In comparison, single-axis units in the eastern region accounted for just 19 percent of solar PV capacity in the eastern U.S. Solar charging management systems The benefits of solar-tracking technologies depend on the amount and type of solar radiation. The two major types of solar radiation are direct-beam radiation and diffuse radiation. Direct-beam radiation comes from the sun to the earth in a straight line, whereas diffuse radiation is light that has been scattered by the earth`s atmosphere and strikes the earth`s surface in many different directions. Solar lease systems Solar-tracking technologies that follow the path of the sun across the sky are effective at capturing direct radiation because they can be aimed directly toward the sun. However, these tracking technologies have no benefit when capturing diffuse radiation because diffuse radiation is not concentrated in a certain trackable direction. The eastern U.S. has more average yearly cloud coverage than the western U.S. As a result, the east receives higher proportions of diffuse radiation, reducing the benefits of tracking technologies and leading to a higher percentage of fixed-tilt solar panels. In the western U.S., which receives more direct solar radiation, single-axis PV panels track the sun`s path from east to west, thus capturing more direct radiation than a fixed-axis unit. 10w mini solar kit Financial considerations also affect the choice between fixed-tilt mounting and the use of solar-tracking technology. Fixed-tilt units are cheaper to install than solar panels with tracking technology. Single- and dual-axis tracking units require additional acreage to install, and the tracking systems themselves are more expensive. However, tracking systems, while more expensive, can produce more electricity. For example, the PVWatts calculator developed by the National Renewable Energy Laboratory estimates that, over the course of a year, a 10-kW PV system in Los Angeles, using a single-axis tracking system, will produce 21 percent more electricity than a system tilted at a fixed 20 degrees. A dual-axis tracking system in the same location would produce 31 percent more than the fixed-tilt system. Pay as you go solar from mtosolar. 40w solar power generator Prepaid solar systems supplied by MTOSOLAR

    2017 04/26

  • Swedish leading solar energy technology provider Midsummer offers complete BIPV metal roof systems
    Swedish leading solar energy technology provider Midsummer offers complete BIPV metal roof systems by Staff Writers Stockholm, Sweden (SPX) Apr 20, 2017 File image. Midsummer has announced the launch of a complete solution for BIPV metal roof systems together with the Swedish Metal roofing company Clix Steel Profile AB. Paygo solar home system Midsummer has developed a rapid process for the production of flexible thin film solar cells using sputtering of all layers of the solar cell. This allows for scalable and cost-effective manufacturing of thin film solar cells. Paygo solar home generator Midsummer can now offer a complete BIPV metal roof system. Midsummer has teamed up with the Swedish company Clix Steel Profile AB, which has developed a metal roof system that is certified for slopes as low as 5 degrees. Pay as you go solar kit The system has a unique fixing principle for its steel sheets and a very competitive pricing for DIY or professional use. Pay as you go solar "We can now offer certified BIPV products with great aesthetics. The roof plates are produced with integrated lightweight flexible panels using any type of coated steel. The lightweight, flexible panel from Midsummer is integrated already at the factory, thereby reducing installation time and cost. All connectors are well protected for snow and ice and easily accessible if necessary", said Sven Lindstrom, CEO of Midsummer. 60w PAYG solar system Each panel are mounted on the roof plates using a high performance elastomeric butyl adhesive tape. The tape is designed to provide excellent tack and adhesion under outside condition in the field. The standing seam roof is then installed by linking the roof plates together in one step. Finally, the PV-modules are easily connected to a system with standard connectors. All connectors and junction boxes are hidden under the ridge capping and well protected for snow and ice. It can easily be accessible if necessary. There is no visible connectors, cables or junction boxes when the roof installation is complete. 40W PAY-AS-YOU-GO solar home kit Midsummer continues to develop its unique way of manufacturing flexible thin film CIGS solar cells on individual stainless steel substrates. The company's versatile DUO deposition tool is now a proven commercial product and its R and D focus has been on increased cell efficiency, lightweight flexible modules and integration of these modules into roofing elements. Solar lease Solar charging installment home system supplied by MTOSOLAR

    2017 04/24

  • Imec Develops Bifacial n-PERT Solar Cell with a Record 22.8 Percent Front-Side Efficiency
    Imec Develops Bifacial n-PERT Solar Cell with a Record 22.8 Percent Front-Side Efficiency by Staff Writers Leuven, Belgium (SPX) Apr 20, 2017 Front and rear-side of imec's Bi-PERT bifacial cell with up to 22.8% front-side efficiency and near 100% bifaciality. Imec reports that it has realized bifacial n-PERT solar cells using an industrially-compatible process with a record-setting front-side conversion efficiency of 22.8 percent. 40w solar home system Used bifacially under standard front illuminations conditions in conjunction with an additional 0.15 sun rear illumination, these cells can produce the equivalent energy of 26.2 percent monofacial cells. With a projected potential low cost-of-ownership at module level (< 0.30 $/Wp), the newly developed bifacial cell technology allows a further reduction of the levelized cost of electricity (LCOE) of large photovoltaic (PV) installations. 40w off-grid solar system Featuring a transparent backside and comparable front- and back contact schemes, bifacial solar cells capture light on both sides of the cell. As a result, they also profit from indirect light, light reflected by the ground and buildings, diffuse light on overcast days, and even direct light at sunrise or sunset, incident on their rear surface. Laptop charging solar system Tests indicate that, over the course of their lifetime, such cells may generate 10-40 percent more electricity than traditional monofacial cells, depending on their bifaciality, the PV installation properties and the reflection or albedo of the location. This may result in an estimated LCOE reduction for PV installations of 10 up to 30 percent. Solar panel home system Imec's bifacial n-type PERT cells (Bi-PERT) have thin and narrow (< 20 um) nickel-silver (Ni/Ag) plated fingers on both the n+ and p+ side of the cell. The cells' contacts were fabricated in a patented process of simultaneous plating both cell sides. This cell plating is performed on cassette level (simultaneous plating on a full cassette of wafers in a chemical bath) without the need for an electrical contact to be made to the substrates. Solar power home system This resulted in a solar cell batch with an average conversion efficiency of 22.4 percent, with the best cell topping 22.8 percent, which is a record for this type of cell. These outcomes were measured internally, based on an ISE CalLab calibrated reference cell, with a GridTOUCH system under standard test conditions using only front side illumination and a non-reflective chuck. backup battery solar home system Filip Duerinckx, principal engineer at imec, said: "Our Cost-of-ownership calculations indicate that this new cell technology has the potential for an exceptionally low cost-of-ownership at module level (< 0.30 $/Wp). This results from the low-cost patented metallization, the fine finger contacts, and the potential of multi-wire interconnection schemes. Solar lighting home system Especially the very limited use of silver compared to traditional screenprinted bifacial cells has a beneficial impact on the cost. As for the bifacial aspect: our cells have a near 100 percent bifaciality, which maximizes the bifacial gain. We are now working to demonstrate this technology on full 60-cell modules with wire interconnection, which we expect will reveal the full potential of this promising bifacial technology on an industrial level." solar backup generators 40w solar home system supplied by MTOSOLAR

    2017 04/21

  • Walmart Secures 40 MWh of Solar Energy Storage for Southern California Stores
    Walmart Secures 40 MWh of Solar Energy Storage for Southern California Stores April 17, 2017 By Renewable Energy World Editors Walmart is continuing its foray into energy storage ownership with new installations for its stores in Southern California. Pay as you go solar Advanced Microgrid Solutions (AMS) last week said it will install 40 MWh of energy storage at 27 Walmart stores in the region. The systems will allow the retailer to reduce peak electricity demand and provide dispatchable grid support to Southern California Edison. paygo solar home system "Cost efficiency is the hallmark of the Walmart brand," Mark Vanderhelm, vice president, energy for Walmart, said in an April 11 statement. "Adding energy storage capabilities to our clean energy resources reduces the capacity needed from the grid and is part of our commitment to increase reliance on renewable energy." prepaid solar home system Walmart plans to power 50 percent of its operations with renewable energy sources by 2025 and has already installed onsite generation, including solar PV, at 350 of its stores. A San Diego Walmart store last November began testing a refrigeration battery system that uses the store`s existing refrigeration to store cooling at night by freezing tanks of salt water. Walmart selected Axiom Exergy to install the energy storage system. prepaid solar lease "When it comes to sustainable and efficient energy management, Walmart sets the global standard," Susan Kennedy, CEO of AMS, said. "Walmart continues to demonstrate its visionary leadership by delivering high quality and low costs for its customers." prepaid solar charging system

    2017 04/19

  • What Are the Top 10 States for solar Clean Energy Jobs?
    What Are the Top 10 States for solar Clean Energy Jobs? April 13, 2017 By Joel Jaeger The solar, wind and energy efficiency industries already employ millions of people in the U.S., and they`re poised to grow. According to the U.S. Department of Energy, there are 374,000 American jobs in solar energy, 102,000 in wind energy and more than 2.2 million related to energy efficiency. For comparison, 160,000 Americans work in coal, 360,000 in natural gas and 515,000 in oil. solar torch Solar and wind are among the most dynamic industries in the nation. In 2016, solar employment expanded 17 times faster than the overall economy. Wind turbine technicians are expected to be the fastest-growing occupation over the next 10 years. solar cell phone charger America`s clean energy jobs are spread out far and wide. Below, see if you can find your state in the top 10 for solar, wind and energy efficiency employment: A Closer Look at the Top States for Clean Energy Development Texas is the top state for wind jobs, and California is the top state for solar and energy efficiency jobs. Florida, Illinois, Massachusetts, Michigan, New York, North Carolina and Ohio also rank in the top 10 in multiple categories. solar mobile phone charger Of course, it`s easier for Texas and California to be at the top of the list because they have such large populations. But what about the concentration of clean energy jobs as a proportion of total state employment? power bank solar Looking at employment on a per capita basis, North Dakota and South Dakota somewhat surprisingly come out on top for wind. About 4.3 out of every 1,000 jobs in North Dakota are in wind energy, as are 3.6 of every 1,000 in South Dakota. On solar, California still leads the pack even on a per capita basis, with solar accounting for 9.3 out of every 1,000 jobs. Nevada is a close second, with 8.9 out of every 1,000 jobs in solar energy. For energy efficiency, the leading states are Vermont (35.8 out of every 1,000 jobs) and Delaware (28.5 out of every 1,000 jobs). solar power charger Looking Beyond Electricity It`s not just in electricity, either. The share of the auto industry working with alternative fuels and fuel-efficient vehicles is growing as well. Of the 2.4 million workers in the industry in early 2016, more than 259,000 worked with alternative-fuel vehicles (including natural gas, hybrids, plug-in hybrids, all electric and hydrogen fuel cell vehicles) and at least 710,000 workers were focused on improving fuel economy or transitioning to alternative fuels. solar power bank 20000mah It`s clear that clean energy is driving job growth across the U.S., creating new economic opportunities and cutting across party lines. The question now is: Will the clean energy revolution continue under the Trump administration? solar power bank charger This article was originally published by the World Resources Institute under a Creative Commons license.

    2017 04/15

  • Solar Clean Energy Investment Drops 17 Percent as China, US Scale Back
    Solar Clean Energy Investment Drops 17 Percent as China, US Scale Back April 13, 2017 By Jess Shankleman, Bloomberg Clean-energy investment fell 17 percent in the first quarter, keeping pace with last year`s decline, as the U.S. and China both scaled back support for wind and solar farms. The $53.6 billion funneled into projects such as renewable energy, efficiency and electric cars during the first three months of the year marked the lowest investment for the quarter since 2013, according to Bloomberg New Energy Finance (BNEF). A surge in financing for large offshore wind projects at the start of last year wasn`t repeated in 2017. Governments in the biggest markets for renewables are slashing subsidies for new projects, reflecting a plunge in the cost of solar PV and wind turbines. At the same time, bright spots for the industry were marked by a $1.4 billion share sale by Tesla Inc. and $650 million for an Enel SpA solar project in Mexico that may be the biggest plant of its kind. Germany and France also boosted investment. Brazil and India declined. [It was a relatively quiet first quarter for global investment, but it`s too early to assume that 2017 as a whole will be lower than last year," said Abraham Louw, analyst at BNEF. Tesla had both a secondary share sale and convertible debt issue in the first quarter, the London-based research arm of Bloomberg LP said in a statement on Tuesday. That boosted investment by 215 percent in the industry from public markets to $2.1 billion. [Tesla continues to plow ahead with its ambitious plans for ramping up manufacturing of the Model 3," said Colin McKerracher, an analyst at BNEF. [If they achieve anywhere near their 2017-18 production targets, the impacts on the auto sector would be profound. Tesla are rolling some big dice here." The broader decline in investment reflects the falling cost of capital for renewables, which allows investors to install the same power generation capacity for less cash. Renewables were the biggest new source of electricity last year even as investment fell to $287.5 billion from a record $348.5 billion the year before, BNEF said Tuesday. China, the world`s biggest clean energy market, saw investment fall by 11 percent to $17.2 billion in the first quarter, reflecting a drop in feed-in-tariff subsidies and issues with grid curtailment. In the U.S., funding fell 24 percent to $9.4 billion, which may have been partly driven by further uncertainty about future tax liabilities, Louw said. Worldwide offshore wind financing fell by 60 percent to $4.6 billion from $11.5 billion a year ago. The U.K., the world`s biggest offshore wind farm installer, had no new financing in the first three months of the year. [With support fizzling out for onshore wind and solar, in recent years offshore wind has propped up clean energy investment in the U.K.," said Tom Harries, BNEF analyst.

    2017 04/13

  • Record new solar renewable power capacity added worldwide at lower cost
    Record new solar renewable power capacity added worldwide at lower cost by Staff Writers Nairobi, Kenya (SPX) Apr 10, 2017 This is the 11th annual report on global trends in renewable energy investment produced by UN Environment (www.UNEP.org), the Frankfurt School, and Bloomberg New Energy Finance. Image courtesy UN Environment. As the cost of clean technology continues to fall, the world added record levels of renewable energy capacity in 2016, at an investment level 23 per cent lower than the previous year, according to new research published today by UN Environment, the Frankfurt School - UNEP Collaborating Centre and Bloomberg New Energy Finance (BNEF). solar street lighting Global Trends in Renewable Energy Investment 2017 finds that wind, solar, biomass and waste-to-energy, geothermal, small hydro and marine sources added 138.5 gigawatts to global power capacity in 2016, up almost 9 per cent from the 127.5 gigawatts added the year before. The added generating capacity roughly equals that of the world's 16 largest existing power producing facilities combined. solar street light Investment in renewables capacity was roughly double that in fossil fuel generation; the corresponding new capacity from renewables was equivalent to 55 per cent of all new power, the highest to date. The proportion of electricity coming from renewables excluding large hydro rose from 10.3 per cent to 11.3 per cent. This prevented the emission of an estimated 1.7 gigatonnes of carbon dioxide. all in one solar street light The total investment was $241.6 billion (excluding large hydro), the lowest since 2013. This was in large part a result of falling costs: the average dollar capital expenditure per megawatt for solar photovoltaics and wind dropped by over 10 per cent. prices of solar street lights "Ever-cheaper clean tech provides a real opportunity for investors to get more for less," said Erik Solheim, Executive Director of UN Environment. "This is exactly the kind of situation, where the needs of profit and people meet, that will drive the shift to a better world for all." solar street light with pole New investment in solar totalled $113.7 billion, down 34 per cent from the record high in 2015. Solar capacity additions, however, rose to an all-time high of 75 gigawatts. Wind made up $112.5 billion of investment globally, down 9 per cent; wind capacity additions fell to 54 gigawatts from the previous year's high of 63 gigawatts. 100 watt solar led street light "The investor hunger for existing wind and solar farms is a strong signal for the world to move to renewables," said Prof. Dr. Udo Steffens, President of Frankfurt School of Finance and Management, commenting on record acquisition activity in the clean power sector, which rose 17 per cent to $110.3 billion. led solar street lighting While much of the drop in financing was due to reduced technology costs, the report documented a slowdown in China, Japan and some emerging markets, for a variety of reasons. led solar street light Renewable energy investment in developing countries fell 30 per cent to $117 billion, while that in developed economies dropped 14 per cent to $125 billion. China saw investment drop 32 per cent to $78.3 billion, breaking an 11-year rising trend. solar street light price Mexico, Chile, Uruguay, South Africa and Morocco all saw falls of 60 per cent or more, due to slower than expected growth in electricity demand, and delays to auctions and financings. Jordan was one of the few new markets to buck the trend, investment there rising 148 per cent to $1.2 billion. The US saw commitments slip 10 per cent to $46.4 billion, as developers took their time to build out projects to benefit from the five-year extension of the tax credit system. Japan slumped 56 per cent to $14.4 billion. solar power street light "The question always used to be 'will renewables ever be grid competitive?'," said Michael Liebreich, Chairman of the Advisory Board at BNEF. "Well, after the dramatic cost reductions of the past few years, unsubsidised wind and solar can provide the lowest cost new electrical power in an increasing number of countries, even in the developing world - sometimes by a factor of two." solar street lamp "It's a whole new world: even though investment is down, annual installations are still up; instead of having to subsidise renewables, now authorities may have to subsidise natural gas plants to help them provide grid reliability," Liebreich said. street light solar Recent figures from the International Energy Agency cited the switch to renewables as one of the main reasons for greenhouse gas emissions staying flat in 2016, for the third year running, even though output in the global economy rose by 3.1 per cent. solar road lighting Investment in renewables did not drop across the board. Europe enjoyed a 3 per cent increase to $59.8 billion, led by the UK ($24 billion) and Germany ($13.2 billion). Offshore wind ($25.9 billion) dominated Europe's investment, up 53 per cent thanks to mega-arrays such as the 1.2 gigawatt Hornsea project in the North Sea, estimated to cost $5.7 billion. China also invested $4.1 billion in offshore wind, its highest figure to date. solar motion sensor light Another positive sign came in winning bids for solar and wind in auctions around the world, at tariffs that would have seemed inconceivably low a few years ago. The records set last year were $29.10 per megawatt hour for solar in Chile and $30 per megawatt hour for onshore wind in Morocco. solar powered outdoor lighting

    2017 04/12

  • Record amount of solar renewables capacity added in 2016: UN
    Record amount of renewables capacity added in 2016: UN The world added a record 138.5 gigawatts of renewable power capacity in 2016 despite a 23 percent drop in investment, reflecting the falling cost of clean energy, the UN announced Thursday. The new energy -- mainly from wind and solar installations, but not including large hydro projects -- was up eight percent from the previous year, on global investment of $242 billion (227 billion euros). solar lantern Investment in fossil fuel-based energy was approximately half that amount in 2016, according to a report jointly published by UN Environment and Bloomberg New Energy Finance (BNEF). "Ever-cheaper clean tech provides a real opportunity for investors to get more for less," said Erik Solheim, Executive Director of UN Environment. solar camping light The renewables capacity brought online in 2016 is equivalent to that of the world's 16 largest power producing facilities combined. solar camping lantern The new figures come a day after Europe's energy utilities dealt a body blow to the coal industry by pledging that no new coal-fired power plants would be built after 2020. National energy companies from 26 or the European Union's 28-nations -- with the exception of Poland and Greece -- joined the initiative, announced in Brussels. solar christmas light "With power supply becoming increasingly clean, electric technologies are an obvious choice for replacing fossil fuel-based systems ... to reduce greenhouse gases," said EURELECTRIC president and CEO of the Portuguese energy group EDP, Antonio Mexia. solar energy lamp In a statement, the consortium of 3,500 electricity generating companies renewed its commitment to the Paris Agreement, the 196-nation climate pact that vows to cap global warming at under two degrees Celsius (3.6 degrees Fahrenheit). solar led lantern The UN report, Global Trends in Renewable Energy Investment, said that the added clean energy in 2016 accounted for 55 percent of all new capacity last year -- the highest share to date. The proportion of electricity worldwide coming from renewables, excluding large hydro, rose from 10.3 percent in 2015 to 11.3 percent, the report said. solar camping The rapidly falling cost of wind and especially solar photovoltaic energy is driving a global shift from dirty to clean energy. solar lantern with mobile phone charger The average expenditure per megawatt for both types of renewables dropped by about 10 percent compared to a year earlier. solar street lighting Investment in 2016 was evenly divided between solar and wind. solar street light Not all of the drop in renewables financing last year was due to falling prices, the report said, noting a slowdown in China, Japan and some emerging markets. all in one solar street light China saw investment tumble 32 percent to $78.3 billion (73.5 billion euros), breaking an 11-year rising trend. prices of solar street lights Mexico, Chile, Uruguay, South Africa and Morocco all saw falls of 60 percent of more, due to in part to slower than expected growth in electricity demand. Japan slumped 56 percent. solar street light with pole "After the dramatic cost reductions of the past few years, unsubsidised wind and solar can provide the lowest cost new electrical power in an increasing number of countries," said Michael Liebreich, Chairman of the Advisory Board of BNEF. That is true "even in the developing world -- sometimes by a factor of two," he added in a statement. 100 watt solar led street light Recent figures from the International Energy Agency cited the switch to renewables as one of the main reasons for greenhouse gas emissions staying flat in 2016, for the third year running, despite robust growth in the global economy. led solar street lighting

    2017 04/11

  • Patented Pay As You Go Solar Home Systems released
    Patented Pay As You Go Solar Home Systems released Congratulation! With our engineers efforts of half of a year to develop and test, we are now pleased to announce that our company can manufacture and export the PAYGO solar home systems. The features of this Pay As You Go solar home system, namely PAYG solar home system are as following: a. It is paid by installment: With the days going, more and more people are preferring to pay for a product step by step, and they can have money on other things, it also can release them from the pressure of payment for one whole system at one time. b. It meets the common requirement for people life: Home lighting 6-8 rooms, mobile charger, power for fan and TV. c. We also make the advantages of adding more features: Radio, bluetooth, headset, music play from MP3, SD card, U flash disk. d. Another important feature: LCD screen used as Time clock, calendar. Directly understanding of charging voltage and current, battery power status. e. The last important feature: LAPTOP charging Pictures of our systems: And now we are ready to have partners with the clients who are willing to have the market of Pay-As-You-Go solar systems. Sales manager responsible for PAYGO solar home systems: Rita Xie www.mtosolar.com www.mindtech-energy.com E-mail: marketing@mindtech-energy.com Skype: ritatse2008 Whatsapp: +86 13554898278 Wechat: x529709590 T: 86-75529058692 F: 86-75529058636 M: 86-13554898278 Add: 6 Building, Donglian Industrial Zone, Kengzi Road, Pingshan New District, Shenzhen, China 518122 Mindtech Optoelectronic Limited.

    2017 03/29

  • Iran and Middle East could adopt fully renewable electricity systems by Staff Writers Lappeenranta, Finland (SPX) Mar 13, 2017 Transforming the electricity system fully to renewables for Iran requires 49 gigawatts of solar photovoltaics, 77 gigawatts of
    Iran and Middle East could adopt fully renewable electricity systems by Staff Writers Lappeenranta, Finland (SPX) Mar 13, 2017 Transforming the electricity system fully to renewables for Iran requires 49 gigawatts of solar photovoltaics, 77 gigawatts of wind power and 21 gigawatts of hydropower. Most of the hydropower already exists, but the solar and wind capacities would require new investments. Iran can transition to a fully renewable electricity system and financially benefit from it by 2030. Researchers at Lappeenranta University of Technology (LUT) show that major oil-producing countries in the Middle East and North Africa (MENA) region could turn their abundant renewable energy resources into lucrative business opportunities in less than two decades. According to the study, a fully renewable electricity system (100% RE) is roughly 50-60 percent cheaper than other emission-free energy options for the MENA region. For example, new nuclear power costs around 110 euros per megawatt hour. Fossil-CCS option costs around 120 euros per megawatt hour. But the cost of the fully renewable energy electricity is around 60-40 euros per megawatt hour, based on financial and technical assumptions of the year 2030.sun panel solar The cost of wind and solar electricity would reduce further to 37-55 euros per megawatt hour if different energy resources were connected with a super grid that allows the transmission of high volumes of electricity across longer distances. For Iran, the price could go as low as 40-45 euros per megawatt hour. Such low cost show that the transition of the current fossil-based electricity system towards a fully renewable electricity system can cover all electricity needs in the decades to come.mono solar panel "The low cost renewable electricity system is a driver for growing standards of living, continued economic growth, in particular also for energy intensive products, and finally more peace," emphasizes Professor Christian Breyer.portable solar system Transforming the electricity system fully to renewables for Iran requires 49 gigawatts of solar photovoltaics, 77 gigawatts of wind power and 21 gigawatts of hydropower. Most of the hydropower already exists, but the solar and wind capacities would require new investments.solar electricity generating system for home Wind power can be installed in many parts of the country and solar systems in all parts of Iran for an attractive cost. Both technologies can be easily added to the existing energy infrastructure, which is mainly based on flexible fossil natural gas fired power plants plus hydropower.solar charger controller The scientists also prepared a renewable oil refining scenario in which fossil fuels are replaced by synthetically produced from carbon dioxide, water and electricity. With this so called power-to-fuel technology, 100% renewable system can still use carbon fuels and chemicals for aviation, materials and medicine. These are the most difficult sectors to decarbonise because batteries are too heavy for powering airplanes and carbon atom is needed in plastics and various chemicals such as solvents and medicine.solar power system home off-grid "The picture that emerges from that study is that the fossil fuel industry can transform its business to meet the COP21 target of a net zero emission energy system. This requires fundamental change in how we think carbon, but it could potentially open major new business opportunities," says Breyer.3kw solar system led light solar SUPPLIED BY MTOSOALR

    2017 03/15

  • Chemists create molecular 'leaf' that collects and stores solar power without solar panels
    Chemists create molecular 'leaf' that collects and stores solar power without solar panels by Staff Writers Bloomington IN (SPX) Mar 09, 2017 The new molecule employs a nanographene complex (on left) to absorb light and drive the conversion of carbon dioxide (upper center) to carbon monoxide (on right). Image courtesy Ben Noffke and Richard Schaugaard, Indiana University. An international team of scientists led by Liang-shi Li at Indiana University has achieved a new milestone in the quest to recycle carbon dioxide in the Earth's atmosphere into carbon-neutral fuels and others materials. solar light parts The chemists have engineered a molecule that uses light or electricity to convert the greenhouse gas carbon dioxide into carbon monoxide - a carbon-neutral fuel source - more efficiently than any other method of "carbon reduction." The process is reported in the Journal of the American Chemical Society. solar power bank 30000mah "If you can create an efficient enough molecule for this reaction, it will produce energy that is free and storable in the form of fuels," said Li, associate professor in the IU Bloomington College of Arts and Sciences' Department of Chemistry. "This study is a major leap in that direction." solar radio Burning fuel - such as carbon monoxide - produces carbon dioxide and releases energy. Turning carbon dioxide back into fuel requires at least the same amount of energy. A major goal among scientists has been decreasing the excess energy needed. solar home lighting system This is exactly what Li's molecule achieves: requiring the least amount of energy reported thus far to drive the formation of carbon monoxide. The molecule - a nanographene-rhenium complex connected via an organic compound known as bipyridine - triggers a highly efficient reaction that converts carbon dioxide to carbon monoxide. solar energy systems home The ability to efficiently and exclusively create carbon monoxide is significant due to the molecule's versatility. solar power inverter "Carbon monoxide is an important raw material in a lot of industrial processes," Li said. "It's also a way to store energy as a carbon-neutral fuel since you're not putting any more carbon back into the atmosphere than you already removed. You're simply re-releasing the solar power you used to make it." solar appliances The secret to the molecule's efficiency is nanographene - a nanometer-scale piece of graphite, a common form of carbon (i.e. the black "lead" in pencils) - because the material's dark color absorbs a large amount of sunlight. 12v solar panel Li said that bipyridine-metal complexes have long been studied to reduce carbon dioxide to carbon monoxide with sunlight. But these molecules can use only a tiny sliver of the light in sunlight, primarily in the ultraviolet range, which is invisible to the naked eye. In contrast, the molecule developed at IU takes advantage of the light-absorbing power of nanographene to create a reaction that uses sunlight in the wavelength up to 600 nanometers - a large portion of the visible light spectrum. 5kw solar system Essentially, Li said, the molecule acts as a two-part system: a nanographene "energy collector" that absorbs energy from sunlight and an atomic rhenium "engine" that produces carbon monoxide. The energy collector drives a flow of electrons to the rhenium atom, which repeatedly binds and converts the normally stable carbon dioxide to carbon monoxide. solar panel battery The idea to link nanographene to the metal arose from Li's earlier efforts to create a more efficient solar cell with the carbon-based material. "We asked ourselves: Could we cut out the middle man - solar cells - and use the light-absorbing quality of nanographene alone to drive the reaction?" he said. solar panel home Next, Li plans to make the molecule more powerful, including making it last longer and survive in a non-liquid form, since solid catalysts are easier to use in the real world. He is also working to replace the rhenium atom in the molecule - a rare element - with manganese, a more common and less expensive metal. solar system 3kw solar inverter without battery SUPPLIED BY MTOSOLAR

    2017 03/13

  • 100% renewable solar energy sources require overcapacity
    100% renewable energy sources require overcapacity To switch electricity supply from nuclear to wind and solar power is not so simple Germany decided to go nuclear-free by 2022. A CO2-emission-free electricity supply system based on intermittent sources, such as wind and solar -- or photovoltaic (PV) -- power could replace nuclear power. However, these sources depend on the weather conditions. In a new study published in EPJ Plus, Fritz Wagner from the Max Planck Institute for Plasma Physics in Germany analysed weather conditions using 2010, 2012, 2013 and 2015 data derived from the electricity supply system itself, instead of relying on meteorological data. By scaling existing data up to a 100% supply from intermittent renewable energy sources, the author demonstrates that an average 325 GW wind and PV power are required to meet the 100% renewable energy target. This study shows the complexity of replacing the present primary energy supply with electricity from intermittent renewable sources, which would inevitably need to be supplemented by other forms of CO2-free energy production. Intermittent sources are, by definition, unsteady. Therefore, a back-up system capable of providing power at a level of 89% of peak load would be needed. This requires creating an oversised power system to produce large amounts of surplus energy. A day storage to handle surplus is ineffective because of the day-night correlation of surplus power in the winter. A seasonal storage system loses its character when transformation losses are considered; indeed, it only contributes to the power supply after periods with excessive surplus production. The option of an oversized, intermittent renewable-energy-sources system to feed the storage is also ineffective. This is because, in this case, energy can be taken directly from the large intermittent supply, making storage superfluous. In addition, the impact on land use and the transformation of landscape by an unprecedented density of wind convertors and transmission lines needs to be taken into consideration. He also warns of the risk that it will intensify social resistance. Solar home systems supplied by MTOSOLAR

    2017 03/08

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