Views: 1 Author: Site Editor Publish Time: 2024-10-22 Origin: Site
In recent years, the rapid development of solar photovoltaic (PV) technology has been accompanied by the continuous iteration of solar cell sizes. From the early 156mm era to today’s widespread use of larger 182mm and 210mm cells, each technological advancement has driven improvements in module power and optimization of system costs.
According to research by Infolink Consulting, early PV cells primarily featured 156mm (M0) and 156.75mm (M2) sizes. During this period, as Aluminum Back Surface Field (Al-BSF) technology matured, module power stabilized around 350W, meeting the market demand at that time. However, with advancements in technology, Passivated Emitter and Rear Cell (PERC) technology gradually became mainstream. After 2019, 166mm (M6) wafers emerged, quickly raising module power above 400W, marking the beginning of the large-size wafer era.
Starting in 2020, 182mm (M10) and 210mm (G12) wafers led a new wave of technological changes. These larger wafers not only increased the power of single modules to 550W or higher but also accelerated the standardization process within the PV industry. In particular, by 2021, several industry-leading companies had agreed on standardized module dimensions for 182mm wafers, greatly advancing the unification of supply chains and product specifications. By 2023, in order to further increase module power while optimizing transportation and system costs, industry leaders introduced the rectangular wafer module standard, establishing 2382*1134mm as the future standardized module size. This size not only enhances the power output of single modules but also optimizes container loading and rack layouts.
The introduction of rectangular wafers marks a further optimization in module design. Compared to traditional square wafers, rectangular cell modules feature a longer wafer design, such as 182.2mm x 210mm, allowing more cells to fit within the same area and thus increasing power density. In PV system design, this feature of rectangular cell modules allows for the installation of more modules within the same land area, greatly improving power generation efficiency.
The benefits of rectangular cell modules extend beyond power enhancement; they also bring significant reductions in system costs. By optimizing module size and power density, rectangular cell modules can pack more power per shipment. For instance, on the transportation route from China to Europe, this optimized packing reduces container shipping costs by around 4.2%. Additionally, as each rack can now support higher power modules, the costs of racking and electrical materials are spread out, resulting in an overall system cost reduction of 3.7%–8.8%. These savings are particularly impactful in large-scale solar power plants, making rectangular cell modules a powerful tool in reducing Levelized Cost of Electricity (LCOE).
In addition to economic benefits, rectangular cell modules also excel in power generation performance. Due to their higher power density, rectangular cell modules can achieve greater energy output on limited land resources. Furthermore, their flexible arrangement allows them to adapt to various complex terrains, optimizing the layout and design of solar power plants and improving land-use efficiency. rectangular cell modules are also more adaptable to different temperature conditions, effectively reducing the impact of temperature on module performance.
As a representative product of this innovation, ZNSHINE SOLAR has launched its 575-630W N-type rectangular bifacial double-glass modules (Model: ZXMR-UPLDD132). ZNSHINE’s rectangular modules optimize cell arrangement, making full use of the ideal dimensions of 2382mm x 1134mm to achieve a photoelectric conversion efficiency of 23.32%. These modules excel not only in power output but also in economic efficiency during transportation and installation, maximizing container load capacity and reducing shipping costs. Furthermore, in ground-mounted power plant projects, ZNSHINE’s rectangular modules can be arranged more compactly, allowing for the installation of more modules within limited land areas, thereby significantly enhancing overall project power generation efficiency.
ZNSHINE SOLAR’s rectangular module is based on 210mm N type technology, continuing its advantages of low power degradation, low temperature coefficient, and low voltage characteristics, providing robust long-term reliability for PV systems. This not only simplifies the design and installation of solar plants for customers but also meets the diverse demands of various application scenarios, particularly showcasing excellent economic and technical advantages in large-scale ground-mounted power plant projects.
In summary, rectangular cell modules represent a major breakthrough in solar technology, bringing comprehensive improvements in power density, system costs, and power generation efficiency through the optimization of cell sizes and module design. With its advanced technology and keen market insight, ZNSHINE SOLAR has successfully introduced a high-efficiency, reliable, and cost-effective rectangular module product, providing the global solar market with more flexible and efficient solutions and further promoting the widespread adoption of renewable energy.
In recent years, the rapid development of solar photovoltaic (PV) technology has been accompanied by the continuous iteration of solar cell sizes. From the early 156mm era to today’s widespread use of larger 182mm and 210mm cells, each technological advancement has driven improvements in module power and optimization of system costs.
Graphene is hailed as the most revolutionary material of the 21st century, earning the title of "king of new materials" due to its exceptional properties. Composed of a single layer of carbon atoms arranged in a honeycomb lattice, graphene exhibits a range of remarkable physical characteristics. It is 100 times stronger than steel and has excellent electrical conductivity, with its carrier mobility at room temperature being approximately 10 times that of silicon. Additionally, graphene boasts outstanding thermal conductivity, with a thermal conductivity coefficient of up to 5300 W/mK, far surpassing most materials. Graphene is also nearly transparent, with an absorption rate of just 2.3% in the optical range. It retains excellent flexibility, allowing it to bend and deform while maintaining its structural integrity. These unique properties make graphene a material of enormous potential across various fields and are widely believed to herald a materials revolution.
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September 24-26,2024 The NEC, Birmingham
