Tradevv Solar Panel & LED Blog

Trough Monocrystalline Solar Modules known as parabolic trough mirrors the whole solar thermal power generation system, is the number of parabolic trough concentrating solar collector through the series-parallel arrangement, will focus sunlight on a receiver tube to heat the working fluid, resulting in high-temperature steam turbine generator sets to promote power generation.

crystalline solar panels and solar thermal power generation technologies, and therefore have different application conditions.
First, technical practicability, the development of photovoltaic technology is more mature, technical practicability, but the core technology still lies in the United States, Japan and a few other developed countries. In comparison, solar thermal technology threshold is lower, compared with other countries, China in this area is much smaller gap, through a series of 863 scientific research projects and joint efforts of industry alliances, we have made much progress. For China, the solar thermal power generation in heat storage, cooling, etc. There are many technical problems to overcome.
Secondly, the production of photovoltaic cells (mainly purified silicon) is a high pollution and high energy consumption, it seems clean, the actual impact on the environment greater. The present case, China’s solar cell production, 80% of the material needs to be imported from abroad, while 90% of the products are sold abroad. Abroad on the production of solar cells in China, more than just value the low cost of labor here. Government of the environmental destruction of the tax policy of the pine and punishment of light, making them more willing to regard China as a solar cell production base. In contrast, solar thermal power plant construction and maintenance of the environmental damage is much smaller.

From the layout point of view, Anti-reflection Coating Glass more flexible layout, you can build large-scale photovoltaic power plants, photovoltaic cells can also be installed on the roof, and even mobile devices, and so on. With the development of future smart grid, home solar power generation can be freely combined network, so that photovoltaic power generation will have a better development. The apparent scale solar thermal power generation, power plants larger, the lower the unit cost of electricity. Therefore only suitable for large-scale solar thermal power plants, the land area, capital requirements of a higher scale.

New forms of energy are directly or indirectly from the sun or the depths of the Earth’s interior heat generated. Including solar, wind, biomass, geothermal energy, fusion energy, hydro and ocean energy and energy derived from renewable bio-fuels and hydrogen energy generated. Can also be said that the new energy including renewable energy and nuclear energy. Compared with traditional energy sources, new energy with less pollution in general, the characteristics of large reserves, for solving the world’s serious environmental pollution problems and the resources (especially fossil energy) depletion is important.

Human use of Solar Panel has a long history. In the early years of the Warring States period in 2000, understood how to use steel four mirrors to focus sunlight ignition; use of solar energy to dry agricultural products. To the modern, solar energy has become increasingly widespread, which includes the use of solar thermal, solar photovoltaic and solar photochemical utilization utilization. A passive use of solar energy use (solar thermal) and the photoelectric conversion in two ways. Solar power is an emerging renewable energy use.

Solar thermal power technology means: the use of large-scale arrays of parabolic or dish-shaped mirrors to collect solar thermal energy, the steam through a heat exchanger device, combining the traditional turbine technology, so as to achieve the purpose of power generation. The use of solar thermal power technology to avoid expensive silicon photoelectric conversion process can greatly reduce the cost of solar power. Moreover, this form of solar energy and a solar energy conversion of other forms of unmatched advantages that solar energy hot water can be stored in large containers, a few hours after sunset still be able to drive steam turbine power generation .

Monocrystalline Solar PV Module is becoming the new photovoltaic energy after another focal point, more and more enterprises begin to generous layout in this area. 12, Ningxia Hanas New Energy Group invested 2.25 billion yuan in Asia’s first parabolic trough – gas combined cycle (ISCC) power plant broke ground in Yanchi region, and is expected solar thermal power industry for China’s development of a new model .

Because the project has changed the traditional pattern of trough solar thermal power generation, thermal storage device by increasing co-operation with the gas turbine to maximize the utilization of solar energy resources, solar thermal power generation in China has important strategic and innovative.

Photovoltaic panels ，Also known as concentrating solar thermal power solar power, solar radiation received by the gathering heat, the thermal energy into high temperature steam to drive a steam turbine to generate electricity. Collected by the solar thermal power generation in different ways, solar thermal power generation can be divided into trough solar thermal power, solar thermal power tower and dish-type solar thermal power generation three.

And photovoltaic, solar thermal power technology, first to avoid the expensive silicon photoelectric conversion process, it can greatly reduce the overall cost of electricity. In addition, solar thermal power generation technology in the “power storage” link, you can get through the medium of heat stored in large containers, you can guarantee a few hours after sunset can still drive steam turbine power generation and voltage stability. The PV is difficult to get rid of “to see the weather,” embarrassing.

EVA test
Silicon solar cell product bag sealing material body is EVA, which ethylene and vinyl acetate copolymer resin, chemical structure can be as follows
(CH2-CH2) a (CH-CH2)
0 101 CH2
EVA can be a hot melt adhesive, rather dry at room temperature with no anti-adhesive, to ensure that operation will occur after having a hot melt certain Monocrystalline Solar Modules conditions

Melt adhesive and crosslinking, and become fully transparent, long-term proven: it encapsulates and outdoor usage in cells were
Quite satisfactory results.
After curing the EVA can withstand modifications in the atmosphere and versatile. It’s going to cover underlay crystal silicon group “, the audience of encapsulated silicon chip products,
And protection of materials and the upper glass, the lower protective material TPT (polyvinyl fluoride film co-k), using vacuum lamination technology for that bonded
One.
On the other hand, it can be improved after glass bonding glass transmittance, AR plays a task, and also the solar the different parts of the input
Of your gain effect. Monocrystalline Solar PV Module
EVA between 0.4mm-0.6mm thickness, surface roughness, uniform thickness, containing cross-linking agent, curing temperature in I50C
Cross-linking, using extrusion molding process to form a stable layer.
EVA soil have two ways: 2 conventional fast curing curing, different EVA lamination process is different
Plus there is a use of UV agents, antioxidants and curing agents with the EVA film thickness of 0.4mm sealant as solar cells.
It and glass, TPT bond involving the seal.
Silicon solar modules used to encapsulate the EVA, the primary roots to become light performance and weather resistance properties to decide on.

1 Principle
EVA has excellent flexibility, impact resistance, flexibility, optical transparency, low temperature across the music of, a substantial, capacity environmental stress
Cracking resistance, weather resistance, chemical resistance, heat sealing.

EVA’s performance depends upon molecular weight of soil (shown by melt index MI) and vinyl acetate resin (expressed in VA) containing probably the most.
When MI is constant, VA flexible, soft, Bond. Compatibility and transparency improve, VA containing female lower, then close
Performance of polyethylene if the VA most abundant in certain time. MI to reduce the softening point decreased, while improving processing and surface gloss, but
Decreases the strength. Molecular weight increases. Can improve impact resistance and stress cracking resistance.
Different levels of leakage of glue on the EVA includes a relatively degree of influence Tong, EVA glue linking directly to the component affected the performance of Tong and the use of
Life within the molten state, EVA and crystalline silicon cells, glass. TPT produced bond, on this process both physical
There are also chemical bonding. Unmodified EVA transparent, soft, melt together of dry, low melting temperature, melt fluidity.
Nevertheless its poor heat resistance, easy extension of Chung and low elasticity. Cohesive strength is low and anti-poor cochlear degeneration, an easy task to produce thermal expansion and contraction cause product sheet
Fragmentation, the braided bonding delamination. Therefore, through caffeine glue EVA modified way, the process is EVA ‘Fan,
Add organic peroxide crosslinking agent, if the EVA is heated to a certain temperature, the decomposition of free crosslinker compile, trigger points EVA
Son involving the mix of three-dimensional network structure, sub-layer EVA crosslinking caused when the glue a lot more than 60% amount of commitment when LED Street Lights
Suffering from atmospheric changes, thermal expansion and contraction do not occur.

Solar street light consists of the following components: solar panels, solar controller, battery, light source, light poles and lamp housing. If the output power to 220V AC or 110V, but also configure the inverter.

Height of poles should be based on the width of the road, lighting the space, the road illumination standard-setting. Lamp housing according to our collection of sun light a number of foreign materials between the aesthetic and energy saving, most of them choose energy-efficient, less demanding exterior lighting, the relative utility on the line.

Solar panels and solar lights in the central part of the solar lights in the highest value. Its role is to the sun’s radiation is converted to electrical energy, stored in batteries or sent. Among the many solar cells in general and more practical than a single crystal silicon solar cells, polycrystalline silicon solar cells and amorphous silicon solar cells, three. Sunny sunshine too good in the east and west, the use of polycrystalline silicon solar cells as well as polycrystalline silicon solar cell production process is relatively simple, lower price than the single crystal. More rainy days in the sun is relatively not very abundant in the southern region, using single crystal silicon solar cells as well as single crystal silicon solar cell performance parameters more stable. Amorphous silicon solar cells in the absence of sufficient sunlight outside is better, because the amorphous silicon solar cells on solar illumination conditions require relatively low.

Solar street lamp solar light in what is an important indicator of normal use, the general energy-saving lamps solar lamps use low pressure, low pressure sodium lamp, lamp, DLED light. Low energy-saving lamps: power is small, light-efficient, but the service life of 2,000 hours, low voltage lamp black, generally suitable for solar lawn lights, garden lights. Low-pressure sodium lamp: high efficiency low pressure sodium lights, but the need inverter, low pressure sodium expensive, making the entire system is high, use less. Lamp: power is small, light-efficient. The lamp in 220V (pure sine wave, frequency 50 Hz) under normal conditions of use of electricity, life can be up to 50,000 hours, life in the Solar Modules light on energy-saving lamps greatly reduced and almost ordinary. LED light source, long life, up to 1 million hours, low voltage, no inverter, light-efficient, made ​​50 Lm / w, imports of 80 Lm / w. As technology advances, LED performance will be further enhanced. I believe that the LED light source as solar street light will be a trend.

As the Earth’s resources become increasingly scarce, the basic rising cost of energy to increase investment, and a variety of safety and pollution hazards everywhere, solar energy as an “inexhaustible” security, environmental protection and new energy more and more attention. In addition, the development of solar photovoltaic technology and advances in green energy, LED Street Lights，solar energy street lamp, grass and other dual advantages of solar lighting products, applications development has gradually scale, solar lights, have become increasingly sophisticated. I want a peer reference design for solar lights bit.

According to “city road lighting design standards” requirement: the average fast road illumination 20lx, uniformity of 0.4, the average trunk road illumination 15lx, uniformity of 0.35, sub-distributors average intensity 8lx, uniformity of 0.35, the average slip illumination 5lx, uniformity 0.3. LED Street Light are in use, due to technical conditions, LED power small 30 ~ 100w, luminous efficiency 50 ~ 80lx / w, road illumination is low, I did the test, pole 8.5 meters high, spacing of 30 meters, the light source 2 × 50wLED light, lamp illumination 19lx, between two lights 11lx, most dark 3.5lx.

Number above the initial installation of lighting for the new illumination value, so the illumination is not satisfied with the trunk road expressway. Solar street lights should be in sub-distributors, with support on the road, the main road with caution.

LED lights daily working hours should work with the general requirements of street design should consider the short duration of sunshine in winter, their working time should be over in 12 hours. As the LED light influenced by the weather, rainy days in case of continuous lack of power and the LED lights can not be used. Countries are not normative for the LED lights in the low irradiance (continuous rainy days) case, allowing a minimum working time does not make provision, lighting manufacturers and are generally based on local meteorological conditions, should be in the low irradiance (continuous rainy days) working conditions work in 15 to 20 days. Should be fully considered in the design of solar panels and battery capacity.

China Technology Development Group Corporation today announced that China Science and Technology in Ravenna in Italy, development and construction of the 4.8MW power plant project “LUNETTA” has been with the local power grid and power generation.A harsh sound of the respondents responsible for the lack of Western Australia, consult the Monocrystalline Solar Modules industry and transparency, which will cause many companies face bankruptcy.

Yang Ling Chinese subsidiary Renewable Technology Energy Limited (“Ling Yang”) and the local power plant developers in Italy in July this year to develop LUNETTA power plant has signed a cooperation contract. Under this contract, Ling Yang is responsible for power plant project development, engineering design, to provide independent design and production by the China Science and Technology of solar modules, and power plant installation and maintenance of late to provide technical support.

“LUNETTA bring clean crystalline solar panels energy to the city of Ravenna and economic development,” China Science and Technology Chief Operating Officer, Mr. Liao Lingxiang said, “As a project developer, LUNETTA grid power plant project success of China Science and Technology is an important milestone.” Respondents replied that they expected to lay off 49.4%. Low expectations of industry, 41.7 percent of respondents said they believe the recovery in the industry soon. Because the prices of the module, or have a positive impact.

U.S. Department of Energy (US Department of Energy) hopes to prevent the U.S. solar energy company Evergreen Solar Inc. Of a solar panel manufacturing technology into the hands of their Chinese competitors. Chinese solar companies accused of serious impact on the U.S. renewable energy market.
U.S. Department of Energy officials want to Evergreen Solar’s patented technology to set a legal limit. This patented Solar module and Evergreen Solar with the rest of the factory equipment into the bankruptcy auction.
On Friday in Wilmington, Delaware to the United States Bankruptcy Court of the court documents show, Evergreen Solar, researchers in a government controlled by the U.S. Department of Energy laboratory use nearly 300 million dollars out of this R & D patents. This technology can reduce production costs 33%.
Federal prosecutors then the U.S. government to clarify the ownership of the technology, they believe these rights limit the sale of Evergreen Solar the ability of this technology. Prosecutors in court papers to explain the intention of the Department of Energy, which prevent foreign entities to obtain technical assistance by the federal government control over foreign entities to prevent U.S. companies to start with unfair competition.Number of Solar Panels foreign buyers, mainly from China is desperately concerned about the assets of Evergreen Solar, they are considering whether to October 26 deadline to enroll before the auction. Bankruptcy auction is scheduled to be held on November 1.

As the Earth’s resources become increasingly scarce, the basic rising cost of energy to increase investment, and a variety of safety and pollution hazards everywhere, solar energy as an “inexhaustible” security, environmental protection and new energy more and more attention. In addition, the development of solar photovoltaic technology and advances in green energy, LED Street Lights，solar energy street lamp, grass and other dual advantages of solar lighting products, applications development has gradually scale, solar lights, have become increasingly sophisticated. I want a peer reference design for solar lights bit.

According to “city road lighting design standards” requirement: the average fast road illumination 20lx, uniformity of 0.4, the average trunk road illumination 15lx, uniformity of 0.35, sub-distributors average intensity 8lx, uniformity of 0.35, the average slip illumination 5lx, uniformity 0.3. LED Street Light are in use, due to technical conditions, LED power small 30 ~ 100w, luminous efficiency 50 ~ 80lx / w, road illumination is low, I did the test, pole 8.5 meters high, spacing of 30 meters, the light source 2 × 50wLED light, lamp illumination 19lx, between two lights 11lx, most dark 3.5lx.

Number above the initial installation of lighting for the new illumination value, so the illumination is not satisfied with the trunk road expressway. Solar street lights should be in sub-distributors, with support on the road, the main road with caution.

LED lights daily working hours should work with the general requirements of street design should consider the short duration of sunshine in winter, their working time should be over in 12 hours. As the LED light influenced by the weather, rainy days in case of continuous lack of power and the LED lights can not be used. Countries are not normative for the LED lights in the low irradiance (continuous rainy days) case, allowing a minimum working time does not make provision, lighting manufacturers and are generally based on local meteorological conditions, should be in the low irradiance (continuous rainy days) working conditions work in 15 to 20 days. Should be fully considered in the design of solar panels and battery capacity.

China Solar Photovoltaic Reuters: KGAL latest available SunEdison 33MW in Italy and Spain the contract, the project is the second reached with SunEdison 20MW in the second quarter of follow-up project Solar Module engineering. 12 projects of total installed capacity of 53 MW, will be based on long-term contract to SunEdison monitoring, maintenance and operations.

SunEdison is the world leader in solar energy suppliers, one of which owns more than 500 photovoltaic power plants. KGAL is a by German commercial banks, Bayerische Landesbank, Hamburg savings bank, private bank Sal. Oppenheim’s German investment holding company.KGAL get public works project by SunEdison development planning department, the company also aimed at the European market, the other two strategic business segments, including commercial and residential crystalline solar panels roof project program.

SunEdison Europe, Middle East, North America and Latin America division chief person responsible for Pancho Perez claimed, “This transaction shows that SunEdison provides innovative investment and financing cost estimates for solar pv glass is very attractive, but also demonstrates our light for Italy and Spain V the contribution of the market, we will continue to develop and build high-quality projects, the funding of local prominent developers and we are honored to be the best new European energy investors KGAL cooperation, looking forward to the follow-up project will continue to advance our relationship . “