Back contact efficient battery components
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Back contact solar battery components for good appearance, shading, high efficiency and less packaging
The advantages of small loss of attention, the Dutch national energy research center (ECN) study machine, etc
Structure is proposed based on an encapsulation of conductive foil lines connected, the use of conductive back substitution
The existing conventional polymer backboard, the basic structure of the products are: copper conductive back/EVA/of drilling hole
Conductive adhesive/cell/EVA/tempered glass, but the current conductive back is expensive and it is on the market
No mature products, and other conventional photovoltaic modules is: this kind of back contact components
Bus layer below the encapsulation EVA, close to the back surface, easy to produce water vapor intrusion and local
Discharge phenomenon, therefore, the structural reliability of special this component has yet to be further verified.
Back contact solar cells is aiming at the shortcomings of the existing technology and component technology
Provide a low cost, easy to implement and good reliability back contact solar arrays
A technology. Compared with the existing technology, the obvious advantages of zyprexa technology is that the back contact cells
Components using the conventional back and packaging materials on the market, on the one hand, reduces the cost of materials,
Simplify the production process, on the other hand also ensures that the component reliability and stability, have very much
Conducive to back contact photovoltaic modules of large-scale production needs.
Back contact solar cells is aiming at the shortcomings of the existing technology and component technology
Provide a low cost, easy to implement and good reliability back contact solar arrays
A technology. Compared with the existing technology, the obvious advantages of zyprexa technology is that the back contact cells
Components using the conventional back and packaging materials on the market, on the one hand, reduces the cost of materials,
Simplify the production process, on the other hand also ensures that the component reliability and stability, have very much
Conducive to back contact photovoltaic modules of large-scale production needs.
In particular, back contact the solar cell component technology has the following advantages:
1. The main gate line, less decrease with silver
2. The shading area reduced, efficiency improved
3. No string of welding, series resistance is small, encapsulation losses small
4. Good heat dissipation, the same power can be more electricity
5. There is no welding, no stress, enhanced reliability
6. No welding, silicon wafer can be thinner
7. Use the conventional back and packaging materials on the market, reduce the material cost, simplify
- Q:Home solar heating products can not mature?
- Solar panel power generation, then the proposed size of the proposed group, mainly the power substation and storage of electrical equipment is very expensive, the highest conversion rate in the 17%-20% efficiency is very low, not as good as plant photosynthesisNow the national clean energy, photovoltaic power generation policy is more than 10kW can be free of charge, but the price of electricity recovery is very low, cumbersome procedures.Buy solar water heaters, the first proposal to consider the local climate, installation conditions, economic prices and durability
- Q:How to make better use of solar energy
- The history of modern solar energy can be calculated from the 1615 French engineer Solomon de Cox in the world invented the first solar powered engine. The invention relates to a machine for pumping water by using solar energy to heat air to make it work. Between 1615 and 1900, the world has developed a number of solar power devices and other solar devices. Almost all of these power plants by condensing method to collect the sunlight, engine power is not the working fluid is mainly water vapor, the price is expensive, little practical value, for the majority of fans of solar energy manufacturing. Twentieth Century 100 years, the history of the development of solar energy technology can be divided into seven stages.
- Q:What is the future of solar power
- The roof of photovoltaic power generation is less than 2 million monthly sales tax, in accordance with the provisions of the national taxation policy, power users need to provide sales invoices to the power supply enterprise, the buyer also need invoice offset the cost, and the personal power does not have the qualification of business owners, led by invoices complicated procedures. More than 20 thousand of the tax can not get the invoice, it increases the difficulty of the sales of power generation households, is not conducive to promotion. The State Administration of Taxation issued, will reduce the tax burden on household electricity." According to the State Administration of taxation documents, since July 1, 2014, the national Power Grid Corp to buy power products distributed photovoltaic power generation project, by the national Power Grid Corp invoices, monthly household electricity generating sales of more than 20 thousand products, owned by the national grid enterprises in accordance with the taxable amount of the 50% generation of vat. The monthly sales of less than 20 thousand yuan may be exempt from vat. According to the State Administration of taxation policy released last year, from October 1, 2013 to December 2015 3l, according to the 3% levy rate calculation. In Takamatsu as an example, if a month sales of 30 thousand, that he should pay the tax is 30 thousand x 3% x 50%=450 yuan.
- Q:What is the difference between the expensive solar energy and the cheap one?
- Give you an example, for example, the same car, are four wheels, but Mercedes Benz and Xiali price is much worse, because Mercedes Benz safety good quality is high, can ensure the safety of life, your value
- Q:As a new energy solar energy has attracted more and more attention has been paid more and more practical application at home and abroad, I really want to know what are the solar energy application is very hope that we put forward their own views and even science fiction book that I want to do research on solar solar energy market in the military and political life etc.
- Power utilizationClear new energy in the future large-scale use of solar energy is used to generate electricity. There are many ways of using solar energy to generate electricity. Has been used mainly in the following two.1, the light - heat - electricity conversion. Heat generation by solar radiation. The utility model is characterized in that the heat energy absorbed by the solar collector is converted into the working substance steam, and then the steam driven turbine drives the generator to generate electricity. The first process is the conversion of light and heat, and the latter is the conversion of heat and electricity.2, optical electrical conversion. Its basic principle is to use the photovoltaic effect to convert solar radiation directly into electrical energy.
- Q:Solar products must be in the sun
- Other light sources can be used to meet the needs of the product (e.g., solar watches can be recharged by other light sources)
- Q:Solar electric vehicle charging device
- Electric vehicle using solar silicon and polysilicon combination surface for Ling lighting plate, high quality and high efficiency crystalline silicon plate, the weak light response is very good, high photoelectric conversion efficiency, both indoor and outdoor sunlight, can be 24 hours of uninterrupted charging for electric vehicles to absorb light, can meet the different electric vehicles with electric load.
- Q:What are the references of the solar automatic tracking system
- Tracking models were taken; gives the specific design ideas and methods of photoelectric tracking mode; to analyze and determine the sun trajectory calculation method, verified the feasibility of this method. According to the proposed tracking method, design a set of automatic tracking type independent solar photovoltaic power generation system. The system is a small photovoltaic power generation system based on automatic solar tracking, all-weather, high efficiency run independently, as much as possible the conversion of solar energy into electricity, to provide electricity load. The whole system is divided into automatic tracking system and two subsystems of solar photovoltaic power system, the photovoltaic power system is in the forest fire specific applications are analyzed and designed respectively. The design of hardware and software of the two subsystems. The hardware design includes the position of the sun and light intensity detection, calculation The software part of the system is designed, which is composed of computer control, data acquisition, external clock and photovoltaic power supply
- Q:PV solar products market sales
- According to the State Administration of taxation policy released last year, from October 1, 2013 to December 2015 3l, according to the 3% levy rate calculation. In Takamatsu as an example, if a month sales of 30 thousand, that he should pay the tax is 30 thousand x 3% x 50%=450 yuan.Residents issued 1 kwh of electricity, the state subsidy of 0.42 yuan; the national standard for the purchase of electricity from the desulfurization of residents with endless self generating electricity, the price is $0.42 per degree. To install and use a set of distributed photovoltaic power generation system with an average of 1 kilowatts of installed cost about 10 thousand yuan, if the 8 kilowatt system daily generating capacity of 30 degrees, 5 degrees every household consumption (no more than a price of 0.52 yuan), about 8 years to recover the investment
- Q:In the domestic high temperature solar energy collector can achieve how many degrees, the existing product and the technology form?
- Above three types of high temperature system, although the operating temperature difference is not small, but the overall efficiency is not much difference, both in the 20~25%, and the temperature is high, the comprehensive efficiency is high, the business efficiency is not high.Low temperature solar thermal system, refers to less than 200~300 degrees Celsius, power is almost blank, because the theory of efficiency of solar thermal power generation system at low temperature is relatively low, but personally think that if the utility system developed a reasonable, the comprehensive efficiency and business efficiency is not low.
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Back contact efficient battery components
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