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Paneles half cells

Features and benefits of half cell technology

Split-cell technology, also known as "half-cut cell technology" or "half cells", is an innovation in solar panel design that aims to increase the efficiency and performance of solar panels.

In a traditional solar panel, the solar cells are usually square or rectangular and are arranged in a single array. In a panel with half-cell technology, each of these cells is divided into two smaller parts, which allows for greater efficiency for several reasons:

  1. Reducing electrical resistance losses: When a solar cell is split in half, the current flowing through each half-cell is halved. Since resistance energy losses (known as Joule losses) are proportional to the square of the current, halving the current reduces energy losses by one-fourth. This means that split cells have a lower internal heat generation and therefore a higher efficiency in converting solar energy into electricity.
  2. Improved efficiency under shaded conditions: Solar panels with split cells also perform better in partially shaded conditions. In a standard solar panel, if a small part of the panel is shaded, it can drastically reduce the output of the entire panel. In a panel with split cells, only the cells that are effectively shaded have their output reduced, which means that the rest of the panel can still produce energy efficiently. This results in higher energy yields in partial shading situations, such as those caused by trees, buildings or other nearby structures.
  3. Space utilisation: By splitting the cells, they can be placed closer together, making maximum use of the available space on the solar panel. This means that more power can be obtained from the same physical space. In addition, having smaller cells reduces the possibility of internal shading losses between neighbouring cells, which also contributes to higher panel efficiency.
  4. Improved heat tolerance: Panels with split cells may also have better heat tolerance. High temperatures can reduce the efficiency of a solar panel. Because panels with split cells generate less heat (due to reduced electrical resistance losses), they can perform better during hot climates and sunny days. This makes them suitable for regions with high temperatures or environments with critical heat dissipation.

In short, split-cell technology can help to increase the efficiency and durability of solar panels, which in turn can lead to a higher investment return for solar system owners. By reducing electrical resistance losses, improving efficiency in shading conditions, making better use of space and having a higher heat tolerance, solar panels with split-cell technology are positioned as a highly efficient and cost-effective option in solar power production.

Besides the advantages mentioned, this pioneering technology also offers other significant benefits. For example, by splitting the solar cells, the electric current in the individual parts is reduced, which decreases the mechanical and thermal stress on the cell materials and connections of the cells. This results in a higher durability and a longer lifetime of the solar panel compared to traditional panels.

Split-cell technology has been particularly valued in high-power applications, such as large-scale solar power plants. By increasing efficiency and improving shading tolerance, these panels can maximise energy production in large-scale projects, which in turn means a higher economic return and a higher commitment to renewable energy development.

Another relevant aspect is that the split cell technology has been the subject of continuous improvements in research and development. Manufacturers and scientists are exploring new design techniques, materials and configurations to further improve the efficiency and performance of split-cell solar panels. This means a promising future for the technology, with the potential to achieve higher efficiency and more competitive costs.

In conclusion, split-cell technology has revolutionised solar panel design by increasing efficiency, improving shading tolerance and making the best use of available space. With additional benefits such as increased durability and extended lifetime, this technology is positioned as a key solution in the transition to cleaner and more sustainable energy sources. As it continues to evolve, we are likely to see even higher global adoption of solar panels with split-cell technology.

Eastech Electric currently has 4 models of on-grid panels with half cell technology:

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