Friday 7 November 2014
Thursday 6 November 2014
9 points of distributed rooftop generation projects need to know before investing
Distributed rooftop power projects need to know before investing in a few key points.
1, the height of the photovoltaic power generation project scope inflection point coordinates of the building;
2 years of meteorological data for each calendar month of solar radiation data, with the same period of the project site station at least one full year of solar radiation data (direct radiation, diffuse radiation, the total radiation data). 30 years of severe weather information, such as dust, lightning, heavy rain, hail and the like;
3, vectorization measurement diagram (clear roof available), the building structure and roof layout, layout of surrounding buildings (specify height and occlusion);
4, the plant electrical equipment for dual power switching time what are the requirements;
5, the roof of the building, structure layout;
6, the original plant consumption (total, load forecasting, electricity periods, etc.);
7, roof rent way, in the form of a discount price, or in other forms, may finally be the final outcome of the negotiations;
8, estimate the nature of the field area of electricity, electricity tariff;
9, in the actual work carried out during the construction of the unit may also be required to provide relevant additional information.
1, the height of the photovoltaic power generation project scope inflection point coordinates of the building;
2 years of meteorological data for each calendar month of solar radiation data, with the same period of the project site station at least one full year of solar radiation data (direct radiation, diffuse radiation, the total radiation data). 30 years of severe weather information, such as dust, lightning, heavy rain, hail and the like;
3, vectorization measurement diagram (clear roof available), the building structure and roof layout, layout of surrounding buildings (specify height and occlusion);
4, the plant electrical equipment for dual power switching time what are the requirements;
5, the roof of the building, structure layout;
6, the original plant consumption (total, load forecasting, electricity periods, etc.);
7, roof rent way, in the form of a discount price, or in other forms, may finally be the final outcome of the negotiations;
8, estimate the nature of the field area of electricity, electricity tariff;
9, in the actual work carried out during the construction of the unit may also be required to provide relevant additional information.
The core area's Carport of APEC meeting will use the solar thin-film power technology of Hina
Asia-Pacific Economic Cooperation (APEC) meeting will be held in Beijing on November 7. Hina recently announced that the core area of the APEC meeting carport use Hina "World leading Chinese wisdom made" thin-film solar power generation technology, not only to achieve energy saving and environmental protection, but also to achieve a light, beautiful, become a different kind within APEC venue landscape.
Today, high-speed operation of modern society, particularly in the construction, industrial, transportation three main areas of excessive energy consumption caused tremendous pressure on the environment, haze and other topics people become increasingly concerned about the current topic. Statistics show that the single is the proportion of total energy consumption of a building's total energy consumption in the country had more than 27% of building energy consumption in 2013 to 10 million tons of coal or more.
Hina believes the solar used in construction, development of thin film power generation building integrated (BIPV) to improve our energy level architectural significance. BIPV is a solar power generation system integrated in the roof of a building, wall, ceiling and other building technology solutions. This technique can cause buildings to fight for a separate building solar power plants to provide clean power supply.
Hina at the APEC meeting of the core area of the building is one of the main forms of photovoltaic carport realization of BIPV. The project uses Hina world's leading thin film solar power generation technology, high efficiency thin film power components are integrated in the shed roof, electricity for lighting and other electrical needs of the hair, to achieve self-occupied green electricity. Carport roof paved with thin-film solar power generation module also features a translucent, light inside the building to meet the needs.
Statistics show that the next five years China BIPV urban architecture can be applied to the area will reach 1.79 billion square meters, fully release the BIPV market for the equivalent of 52 million tons of carbon dioxide emissions contribute to reduce emissions 16 million vehicles. Faced with blue ocean market, Hina constant force, recently announced that its headquarters is located in Beijing's largest building-integrated thin-film generation (BIPV) projects a project completed and put into use. Also announced that, through the integration of global technology and independent research, Hina has become the design, development, production, integration, construction and operation and maintenance as one of BIPV solutions.
Hina headquarters BIPV project combines the building walls, corridor, skylights, flexible roof, carport and other BIPV integrated construction method, the total installed capacity of 3MW, an installed capacity of 600KW, resolves Group Headquarters 20% of energy demand, two completed will achieve 100% of the Group headquarters energy self-sufficiency. The project year 2500 tons of carbon dioxide emissions, equivalent to 140,000 species of trees, 780 to reduce vehicle exhaust emissions.
The most important feature of the project is a modern building while maintaining the original layout of the plane features the same premise, the introduction of a very futuristic design elements, building facade BIPV components using Dragon armor design, different shape, color, light transmittance with the use of solar thin-film modules, and based lighting, shading, ventilation and other functional requirements overall design. This design from the architectural point of view of aesthetics, highlighting features and innovative architecture, build unlimited potential and vitality of modern green buildings.
Hina also released a transmission type, color type, hollow type, large, shaped, lightweight, flexible BIPV modules and other types of products, and has adopted management system, building materials, solar cells and many other certification authority. Hina BIPV component also has low-light resistance, good high temperature performance, color, shape can be customized, light uniformity, flexible bendable and other advantages can be in compliance with building safety requirements, as the high-tech materials to provide electricity, while meeting aesthetic needs of all types of building artistic effects and overall coordination and so on.
Hina said that China's energy conservation situation is grim, especially in the development of large-scale development of solar BIPV right time. Our BIPV market has great potential, but in order to be able to represent the Chinese solar companies mature technology, improve services, large-scale development conditions have been met, the time is ripe. I hope the green building concept advocated by APEC conference center will play a leading role model solar energy applications in the construction field.
Today, high-speed operation of modern society, particularly in the construction, industrial, transportation three main areas of excessive energy consumption caused tremendous pressure on the environment, haze and other topics people become increasingly concerned about the current topic. Statistics show that the single is the proportion of total energy consumption of a building's total energy consumption in the country had more than 27% of building energy consumption in 2013 to 10 million tons of coal or more.
Hina believes the solar used in construction, development of thin film power generation building integrated (BIPV) to improve our energy level architectural significance. BIPV is a solar power generation system integrated in the roof of a building, wall, ceiling and other building technology solutions. This technique can cause buildings to fight for a separate building solar power plants to provide clean power supply.
Hina at the APEC meeting of the core area of the building is one of the main forms of photovoltaic carport realization of BIPV. The project uses Hina world's leading thin film solar power generation technology, high efficiency thin film power components are integrated in the shed roof, electricity for lighting and other electrical needs of the hair, to achieve self-occupied green electricity. Carport roof paved with thin-film solar power generation module also features a translucent, light inside the building to meet the needs.
Statistics show that the next five years China BIPV urban architecture can be applied to the area will reach 1.79 billion square meters, fully release the BIPV market for the equivalent of 52 million tons of carbon dioxide emissions contribute to reduce emissions 16 million vehicles. Faced with blue ocean market, Hina constant force, recently announced that its headquarters is located in Beijing's largest building-integrated thin-film generation (BIPV) projects a project completed and put into use. Also announced that, through the integration of global technology and independent research, Hina has become the design, development, production, integration, construction and operation and maintenance as one of BIPV solutions.
Hina headquarters BIPV project combines the building walls, corridor, skylights, flexible roof, carport and other BIPV integrated construction method, the total installed capacity of 3MW, an installed capacity of 600KW, resolves Group Headquarters 20% of energy demand, two completed will achieve 100% of the Group headquarters energy self-sufficiency. The project year 2500 tons of carbon dioxide emissions, equivalent to 140,000 species of trees, 780 to reduce vehicle exhaust emissions.
The most important feature of the project is a modern building while maintaining the original layout of the plane features the same premise, the introduction of a very futuristic design elements, building facade BIPV components using Dragon armor design, different shape, color, light transmittance with the use of solar thin-film modules, and based lighting, shading, ventilation and other functional requirements overall design. This design from the architectural point of view of aesthetics, highlighting features and innovative architecture, build unlimited potential and vitality of modern green buildings.
Hina also released a transmission type, color type, hollow type, large, shaped, lightweight, flexible BIPV modules and other types of products, and has adopted management system, building materials, solar cells and many other certification authority. Hina BIPV component also has low-light resistance, good high temperature performance, color, shape can be customized, light uniformity, flexible bendable and other advantages can be in compliance with building safety requirements, as the high-tech materials to provide electricity, while meeting aesthetic needs of all types of building artistic effects and overall coordination and so on.
Hina said that China's energy conservation situation is grim, especially in the development of large-scale development of solar BIPV right time. Our BIPV market has great potential, but in order to be able to represent the Chinese solar companies mature technology, improve services, large-scale development conditions have been met, the time is ripe. I hope the green building concept advocated by APEC conference center will play a leading role model solar energy applications in the construction field.
Wednesday 5 November 2014
Monocrystalline began to replace the polysilicon market demand growth is expected to exceed 30%
This year, the PV industry continued to pick up.
Reporter According to Wind statistics, in the first three quarters of this year, 18 listed companies in the photovoltaic industry is just five losses, the rest were profitable.
Specifically, the number of polysilicon business to profitability; and monocrystalline silicon companies are usher in rapid development period, with costs continue to decrease, increased gross margins, to achieve single-crystal silicon enterprises Lungi shares in the first three quarters of net profit of 180 million yuan, greatly increased 356.59 percent year on year.
Analysts said that despite the current polysilicon dominant market, but the share of single-crystal silicon is increasing. Monocrystalline will begin to implement a partial substitute for polysilicon, market demand growth is expected to exceed 30%, higher than the overall growth of the photovoltaic industry.
In addition, the industry believes that in the long run, the photovoltaic industry development speed positive, but will remain in a deep adjustment phase.
Monocrystalline tide approaching, demand growth is expected to exceed 30%
It is worth noting that the PV market debate about the long time between the silicon and polysilicon.
PV companies in holding the 'get rich quick' idea that many people hope to buy equipment for two years to earn back. Therefore, the rapid expansion in the photovoltaic business process, many companies have chosen the route of polysilicon, first, because polycrystalline cheap, and second, because do not understand a single crystal. Currently only five or six companies producing monocrystalline silicon wafers.
But comparatively speaking, whether from the conversion efficiency or from the cost point of view, the single crystal silicon are better than polysilicon.
Under the same conditions, the higher the component generating the same amount of silicon single crystal nominal power, and a conversion rate of silicon cells is weaker than the attenuation rate of the polysilicon and higher stability.
Data show that the current large-scale industrial production of silicon solar cell conversion efficiency at 19% -20% efficiency monocrystalline silicon (HIT) can reach 23% -24%, while the photoelectric conversion efficiency of polycrystalline silicon cells in 17% - 18%. Improved efficiency monocrystalline silicon solar cells space than the polycrystalline silicon solar cells.
In addition, under the same lighting conditions, every watt monocrystalline photovoltaic power generation system than the polycrystalline high 4% -8%, and operation and maintenance costs per unit of installed capacity is less than polycrystalline. Each crystal system thus the overall cost of electricity generated is much lower than the polycrystalline systems.
Future technological progress or further widen the crystal and polycrystalline cell conversion efficiency gap. Difficult to find, silicon is being recognized by more and more companies in the market.
Reporter According to Wind statistics, in the first three quarters of this year, 18 listed companies in the photovoltaic industry is just five losses, the rest were profitable.
Specifically, the number of polysilicon business to profitability; and monocrystalline silicon companies are usher in rapid development period, with costs continue to decrease, increased gross margins, to achieve single-crystal silicon enterprises Lungi shares in the first three quarters of net profit of 180 million yuan, greatly increased 356.59 percent year on year.
Analysts said that despite the current polysilicon dominant market, but the share of single-crystal silicon is increasing. Monocrystalline will begin to implement a partial substitute for polysilicon, market demand growth is expected to exceed 30%, higher than the overall growth of the photovoltaic industry.
In addition, the industry believes that in the long run, the photovoltaic industry development speed positive, but will remain in a deep adjustment phase.
Monocrystalline tide approaching, demand growth is expected to exceed 30%
It is worth noting that the PV market debate about the long time between the silicon and polysilicon.
PV companies in holding the 'get rich quick' idea that many people hope to buy equipment for two years to earn back. Therefore, the rapid expansion in the photovoltaic business process, many companies have chosen the route of polysilicon, first, because polycrystalline cheap, and second, because do not understand a single crystal. Currently only five or six companies producing monocrystalline silicon wafers.
But comparatively speaking, whether from the conversion efficiency or from the cost point of view, the single crystal silicon are better than polysilicon.
Under the same conditions, the higher the component generating the same amount of silicon single crystal nominal power, and a conversion rate of silicon cells is weaker than the attenuation rate of the polysilicon and higher stability.
Data show that the current large-scale industrial production of silicon solar cell conversion efficiency at 19% -20% efficiency monocrystalline silicon (HIT) can reach 23% -24%, while the photoelectric conversion efficiency of polycrystalline silicon cells in 17% - 18%. Improved efficiency monocrystalline silicon solar cells space than the polycrystalline silicon solar cells.
In addition, under the same lighting conditions, every watt monocrystalline photovoltaic power generation system than the polycrystalline high 4% -8%, and operation and maintenance costs per unit of installed capacity is less than polycrystalline. Each crystal system thus the overall cost of electricity generated is much lower than the polycrystalline systems.
Future technological progress or further widen the crystal and polycrystalline cell conversion efficiency gap. Difficult to find, silicon is being recognized by more and more companies in the market.
Photovoltaic power plant "illness" are frequent,Energy Bureau use "strong medicine" solve problems
Solar power as a clean energy applications have been developed for many years, and now the technology is relatively mature, has entered every household. Statistics show that in 2013 China's new PV power installed capacity of 12.9 GW, the world's largest photovoltaic applications. 2014 China PV power plant construction will reach 10-12 GW, accounting for a quarter of global.
But brutal development of the industry has also brought many problems, the National Energy Board recently made clear that in some areas, and supporting grid PV power plant construction are not synchronized, project management is not standardized, weak standards and quality management issues outstanding.
AQSIQ recently released a report checks for solar photovoltaic modules with anti-reflective coated glass product quality supervision and spot checks, the results surprising, sampling of 30 companies 30 kinds of products, 23 kinds of only 23 companies product qualification, sampling corporate yields and product qualification rate was 76.7%.
The report shows that this sample test involving seven projects, including debris state, shotgun bag impact properties, optical properties, resistance to a clean slate, resistance to neutral salt spray, humidity freeze properties, UV resistance. Where debris state, shotgun bag impact safety performance indicators related to the product after installing the photovoltaic modules, photovoltaic modules using secure. The results show that failed mainly for moisture and debris frozen performance status.
In fact, these risks would have exposed the reality of recent years in the western region of photovoltaic power plants frequently exposed quality issues. According to a report by a third-party testing organization Beijing General Certification Center, the country has surveyed 425 solar power plants, 30 percent more than three years to build power plants have experienced varying degrees of problems.
Some blame the high subsidies and low acceptance criteria Golden Sun works in previous years, resulting in a lot of western power plants there are serious quality problems. Life expectancy is 25 years of power plant operation, follow-up questions will become increasingly serious.
Frequently exposed photovoltaic plant quality problems make the National Energy Board recognized the seriousness of the problem, has taken a series of measures to rectify. And the use of certified products meet the national targets Express document recently issued "on further strengthening PV power plant construction and operation management notice" from the 11 aspects of photovoltaic power plants were standardized, and require the project unit equipment procurement tender .
But brutal development of the industry has also brought many problems, the National Energy Board recently made clear that in some areas, and supporting grid PV power plant construction are not synchronized, project management is not standardized, weak standards and quality management issues outstanding.
AQSIQ recently released a report checks for solar photovoltaic modules with anti-reflective coated glass product quality supervision and spot checks, the results surprising, sampling of 30 companies 30 kinds of products, 23 kinds of only 23 companies product qualification, sampling corporate yields and product qualification rate was 76.7%.
The report shows that this sample test involving seven projects, including debris state, shotgun bag impact properties, optical properties, resistance to a clean slate, resistance to neutral salt spray, humidity freeze properties, UV resistance. Where debris state, shotgun bag impact safety performance indicators related to the product after installing the photovoltaic modules, photovoltaic modules using secure. The results show that failed mainly for moisture and debris frozen performance status.
In fact, these risks would have exposed the reality of recent years in the western region of photovoltaic power plants frequently exposed quality issues. According to a report by a third-party testing organization Beijing General Certification Center, the country has surveyed 425 solar power plants, 30 percent more than three years to build power plants have experienced varying degrees of problems.
Some blame the high subsidies and low acceptance criteria Golden Sun works in previous years, resulting in a lot of western power plants there are serious quality problems. Life expectancy is 25 years of power plant operation, follow-up questions will become increasingly serious.
Frequently exposed photovoltaic plant quality problems make the National Energy Board recognized the seriousness of the problem, has taken a series of measures to rectify. And the use of certified products meet the national targets Express document recently issued "on further strengthening PV power plant construction and operation management notice" from the 11 aspects of photovoltaic power plants were standardized, and require the project unit equipment procurement tender .
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