Reducing the cost of photovoltaic kilowatt hour is the focus of current energy strategy. Under the pressure of photovoltaic cost reduction, it has become a trend to promote cost reduction by system efficiency, especially the high efficiency of solar panels, and reduce the investment cost of system end owners.
However, the solar cell technology innovation is facing a bottleneck, perc is close to the peak theoretical efficiency, heterojunction under the current situation that TOPCON and others cannot break through the cost barrier in the short term, in order to achieve higher power and power generation, it has become an industry consensus to pursue a large-scale path, especially to break the cost reduction bottleneck with G12, dilute the production cost at the manufacturing end, reduce the construction cost of system power station and maximize the income.