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Photovoltaic junction box: product iteration continues, fast-growing high-business track.
Release time:
2021/11/12
As a connecting device, the photovoltaic junction box is one of the key auxiliary materials for the production of photovoltaic modules. It mainly has two functions: one is to connect, connect the photovoltaic module and the load, and draw the current generated by the module and generate power; the other is to protect, When the hot spot effect occurs in the component, it plays an automatic protection role.
Under the background of the rapid growth of global photovoltaic installed capacity, assuming that the average power of modules increases at an annual growth rate of 2%, it is estimated that the market demand for junction boxes and connectors in 22-25 years will be 5.8, 7.9, 9.1 and 1.04 billion sets (100 million pairs) respectively. By 2025, the market size of junction boxes will reach 20.8 billion billion yuan, and the market size of connectors will reach 2.6 billion million yuan, with an average annual compound growth rate of about 24.4 in the industry.
Photovoltaics open a ten-year boom cycle, driving junction box demand to continue to improve.
In the photovoltaic power generation industry chain, the upstream is mainly raw materials related to photovoltaic cells, including silicon chips, silver paste, soda ash, quartz sand, base film, etc. The middle reaches are mainly components and components required for the construction of photovoltaic power stations, including photovoltaic modules, cell chips, inverters, combiner boxes, photovoltaic supports and cables, etc. The downstream is photovoltaic application fields, mainly the construction, system integration and operation of photovoltaic power stations.
Among them, the photovoltaic junction box as a connector, the internal through the terminal and connector of the solar module generated by the current lead and into the electrical equipment, as the auxiliary material of the photovoltaic module, the junction box in the photovoltaic industry chain in the middle link.
The photovoltaic junction box is an important part of the solar photovoltaic module. It mainly has two functions: one is to connect, the junction box connects the photovoltaic module and the load, and draws the current generated by the module and generates power; the other is to protect the module. When the hot spot effect occurs, the junction box plays an automatic protection role.
In the cost composition of photovoltaic modules, junction boxes account for less than 3% of the value of the components, and the cost is relatively small but it is an essential accessory product for solar photovoltaic power generation systems.
In addition, due to the particularity of the solar photovoltaic power generation environment, the performance of the junction box also has higher requirements, in the realization of the function at the same time, the junction box needs to have weather resistance, waterproof and dustproof, ultraviolet resistance and other performance, to ensure that the life of the component within the period of stable operation.
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