The arrival of an era of “quality wins with qualityâ€
In the recent period, as the external environment of the photovoltaic industry gradually eased, the internal photovoltaic policy became clear and the domestic photovoltaic application market was about to usher in a new round of construction boom. Since the construction of large-scale photovoltaic power plants is still an important way for the country to complete the “Twelfth Five-Year Plan†target, the major photovoltaic power plant operators have not relaxed their layout and construction of power plants in all regions. Compared with the past, developers have significantly improved the quality requirements for photovoltaic power station construction. Many power station developers have realized that the investment return period of the entire power station, the extension of the service life of the power station and the stability of the power generation efficiency are the two most critical aspects of ensuring the benefits of the power station. It is tantamount to killing chickens and taking eggs at the expense of quality and reducing costs. The damage is the entire photovoltaic industry. Photovoltaic industry is entering the era of “taking quality as king†after the period of “supporting silicon is king†and “cash flow is kingâ€, refocuses on the product itself, and insists on the long-term power generation benefits brought by high quality and high efficiency. , will become the core of the development of the photovoltaic industry. The quality of some power stations is worrying It cannot be denied that through the efforts of many parties, the difficulties faced by the ground-based photovoltaic power plants to restrict access to the Internet and default on subsidies are being reversed. After the Ministry of Finance actively cooperates with the grid and the Ministry of Finance clears the subsidies, the photovoltaic power station developers who “get money and go online†are caught up in their own building, and the quality of the photovoltaic power plants that have just been operating is frequently occurring. At the "China Green Industry Promotion Plan" held in mid-August, the developers of large-scale photovoltaic power plants finally solemnly discussed the problems in the construction, operation, and quality control of power plants. Shi Dingyao, the State Council counselor, also proposed that ensuring the quality of power station construction is the basis for the sustainable and healthy development of the photovoltaic industry, and improving the quality of photovoltaic power station construction has become a top priority. From the relevant data, the quality of photovoltaic power stations partially completed construction is slightly more problematic. For some photovoltaic power plants built for only two years, the photoelectric conversion rate of some parts has been severely reduced by more than 30%. Others, such as the yellowing of photovoltaic modules, stent accidents are also common in the photovoltaic power plant site. In fact, the service life of photovoltaic modules is usually at least 25 years. It is not surprising that PV power plants in foreign countries continue to generate electricity for 40 years. "Recently, Guangdong Sun Yat-sen University has conducted a related test on a photovoltaic project that has been in operation for 23 years in Hainan Province. The test results show that after 23 years, photovoltaic modules only attenuate 6%." Jinko Energy Vice President Yao Feng interviewed by reporter Said. An industry technician told the reporter that the decay performance of the lifetime and conversion rate of PV modules comes from the quality assurance of the components. EVA, backsheet materials, component gluing in the product are all critical. Before 2011, the industry was stimulated by national policies, and many companies that had rushed into other industries in the photovoltaic industry took the construction period. They used inferior EVA, thin EV materials, etc., and replaced PE materials with TPT/TPE backsheet materials. The cost is also the main reason for the frequent occurrence of PV power plant accidents. “The degree of unity of these component glass and EVA and the degree of protection of the backplane to the power generation layer are not enough, and the breakdown of component products is very common. Such components do not last much longer in the harsher environments of the Great Northwest. The photo-electric attenuation often reaches several percent in 1-2 years, said the above-mentioned personnel. According to the reporter's understanding, the existence of some power stations in the western part of China that are not of high quality is not unrelated to the sudden introduction of relevant national policies. In 2011, the State issued a subsidy standard and policy for large-scale photovoltaic ground power stations, and provided that the projects completed before September 30 could enjoy a subsidy policy of 1.15 yuan/kWh. After September 30, the project can only enjoy the standard of 1 yuan/kWh, resulting in many power station construction companies rushing to start the photovoltaic power station project, and rush to complete before the "9B30", under the "urgent" policy, when the power station construction Quality cannot be guaranteed at all. Future power station wins with quality “If you only see the interests of the time and sacrifice the long-term benefits of the future, it may not be a wise choice. It may jeopardize the quality and service life of the entire system. It is also an unfair practice for the entire investment.†DuPont Electronics and Communications Division Zheng Xianzhi, president of Greater China, said in an interview with reporters. According to the reporter, the main reason for determining the service life of a battery module is the weather resistance of the materials used when the module is packaged. Such as EVA film, backplane, junction box, cables, etc., the quality and quality of these basic materials directly determine the pros and cons of the component products. "Every increase in photoelectric conversion efficiency by 1% will reduce the cost by 5%. For every one-year increase in the use of photovoltaic power plants, the return to developers will be even greater." Zheng Xianzhi said, "DuPont's choice of materials is important. The life of the module is extended to a photovoltaic power plant of 30 megawatts in the western region, with an average daily power generation capacity of 150,000 degrees, and an average annual power generation capacity of 54 million kWh, extending the life of the module will give investors greater investment. Return." Zheng Xianzhi stated that in the early stage of the construction of photovoltaic power plants, the selection of high-quality photovoltaic basic materials, such as silver paste and backplane, can effectively reduce the company's operation and maintenance costs. "At present, the total cost of photovoltaic systems is between 8 yuan and 9 yuan per watt, including 4 yuan per watt of components. It can be seen that the installation cost of the system is slightly higher than that of the components. By selecting high quality materials, the lifetime of photovoltaic power plants is guaranteed. Therefore, reducing the cost of electricity and improving the return on investment are more obvious,†Zheng Xianzhi said. Fortunately, the pursuit of quality is being accepted by domestic power station developers. In the new photovoltaic power plant project, many developers began to actively seek to improve the quality of power station technology and product support. Recently, Guodian Photovoltaic Co., Ltd. has signed a strategic cooperation agreement with DuPont. Both parties will cooperate with photovoltaic technology to improve the efficiency, quality and reliability of photovoltaic power plants. "Now, the Group's procurement not only stays focused on prices, but also focuses on quality," said Xie Bin, CGN New Energy Technology Manager. "If the domestic photovoltaic industry has a complete and healthy mentality to make photovoltaic products, I believe that its attenuation control can be achieved within 6% -10%. The photovoltaic industry should continue to develop, and suppliers and manufacturers must take up the responsibility first. Responsibility to prevent the delivery of products of poor quality to the market." Yao Feng said. Door Handle On Rosette,Brushed Lever Door Handle,Front Lever Door Handle,Fancy Solid Lever Door Handle Wenzhou Shenghong Metal Products Co.,Ltd , https://www.shenghonglock.com