The favor of the photovoltaic market for Hi-MO4 modules using M6 size silicon wafers has clearly become an indisputable fact, but there are still some people in the industry who have an ambiguous attitude towards Hi-MO4. Then next, we will use five direct hits "Hi-MO 4 soul" torture, let everyone more systematic and in-depth understanding of Hi-MO 4.

The M6 size silicon wafer achieves cost savings and compatibility at both the manufacturing end and the system application end of the industry chain. The saving of the system end is basically that the increase of the current just uses the margin of the existing inverter, and the capacity of the single string is increased without increasing the voltage (the number of series is unchanged). Since the M6 double-sided has fully utilized the current margin of the inverter side, the larger silicon chip will limit the current of the inverter side and cause a loss of power generation. Although the current can be reduced by the component circuit design, the system side is relatively M6 There is no savings.

Longi optimized the module size design this year. The size of the 72-type module became 2094 * 1038mm. The mass-production module efficiency exceeded 20%, and the 450W module efficiency reached 20.7%. The increase in efficiency has further reduced the cost of BOS, and the footprint of the power station has also decreased significantly.

Compared with 72 components using 158.75mm silicon chips, the power station uses centralized inverters and fixed brackets, and the Hi-MO 4 BOS cost can be saved by 4.5 points / W. Although the power of 78 modules is equivalent to Hi-MO 4, the reduction of the number of series connection results in a significant difference in the cost-saving effect of BOS and Hi-MO 4.

The higher power generation benefits and lower BOS costs brought by the 166-size high-power components in practical applications are obvious. But will the increase in component area and weight cause greater difficulty in actual installation? Increase more installation costs?

After actual investigation and calculation, due to the increase in power of Hi-MO 4 single-module components, the number of components is reduced, there is no obvious difference between single-module component handling, upper bracket, and installation. Instead, it will reduce installation costs.

Hi-MO 4 has been in short supply since it was introduced to the market, with cumulative orders + intention orders exceeding 10GW, and shipments in 2019 have reached 1.5GW. The application projects cover various regions of China, Bangladesh, Vietnam and other places. Customers and EPC parties generally reported significant savings in brackets and foundations.

The response of the Hi-MO 4 module market has exceeded expectations. In 2020, Longji's 166-size module production capacity will exceed 20GW, ensuring stable global supply.

After continuous optimization of Hi-MO 4, the mass production version is more reasonable, the weight is further reduced, and the double-sided technology is supported. With lower BOS cost and LCOE cost, it has become the best for global customers, especially large-scale photovoltaic power plant investors. The selection of components shows a huge investment value on a global scale.