To achieve the goal of carbon neutrality, the installed capacity of wind power and photovoltaics will reach an astonishing 6000GW, which requires a large amount of land resources. In the photovoltaic field, to reduce the use of land resources, on the one hand, we need to vigorously develop BIPV, industrial and commercial roofs, and household photovoltaics and other forms of photovoltaic power generation that do not occupy additional land; on the other hand, we need to try our best to improve the photoelectric conversion efficiency and unit area of photovoltaic modules For the power generation capacity of the modules, high-density packaging modules represented by shingled modules have become an inevitable choice.

According to calculations by many domestic authoritative organizations, in order to realize the vision of carbon neutrality, my country's wind power and photovoltaic installed capacity will reach more than 6 billion kilowatts (6000GW) in 2060, of which photovoltaic power is estimated by half, and the installed capacity will be 3 billion kilowatts.

According to public data, for a 100,000-kilowatt (centralized) photovoltaic power station, the area of land requisitioned during the actual construction process is about 2,000 to 5,000 mu. The area of a photovoltaic power station is greatly affected by the latitude of the project site, the degree of topographical undulation, the type of modules, and the arrangement of the components.

If calculated according to the actual land acquisition area, to complete 3 billion kilowatts of photovoltaic installations, the required land area is: 3 billion kW/(3-75,000 kW/km2)=40,000 to 100,000 km². Obviously this is a huge amount of land Resource requirements. Although a large number of photovoltaic projects are BIPV, industrial and commercial rooftops and household photovoltaics and other forms of photovoltaic power generation that do not occupy additional land, how to reduce the occupation of land resources by centralized photovoltaic power stations is a problem that the photovoltaic industry must consider.

In this context, the photovoltaic industry needs to do its best to improve the photoelectric conversion efficiency of photovoltaic modules and the power generation capacity of modules per unit area. High-density packaging modules represented by shingled modules have become an inevitable choice.

The shingled module uses laser slicing technology to cut the whole battery into several battery strips, and uses conductive glue to flexibly connect the battery strips to optimize the module structure, realize the cell spacing, and make full use of the limited area of the module , The same version can place 5% more cells than other types of modules, effectively increasing the light-receiving area of the module.

Since the shingling process uses conductive glue to realize the stack interconnection of the cells, there is no need to connect the solder ribbon metal and the silicon base to realize the circuit series connection like the traditional components, the line loss is reduced and the heat loss is effectively reduced. In addition, the cells are flexibly connected by conductive glue, and the stress distribution is uniform, which not only can effectively reduce the cost of thinner silicon chips, but also has a lower risk of cracking. Small cells can limit the impact of cracks to a smaller area, even if There will be less power loss due to hidden cracks. In terms of circuit design, the shingled component realizes a full parallel circuit, which has better anti-shading, anti-attenuation, and anti-hot spot performance than other types of components. At present, the shingled technology is developing rapidly, and the cost optimization is close to conventional modules.

If you want to know more details about Shingled PV Panels, welcome to contact us at any time.

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