According to the data released in the first half of 2023, it can be seen that the power generation patterns of different technology types of components in 2023 are consistent with the same period last year. In 2023, TOPCon and IBC were 1.2% and 0.75% higher than PERC, respectively. In 2022, TOPCon and IBC were 0.97% and 0.39% higher than PERC, respectively.
The difference in power generation between battery cell modules of different sizes in 2023 and the same period last year is basically the same. Components of the same battery cell size may have differences in power generation due to variations in manufacturing processes from different manufacturers, with a maximum difference of 2.0%; Using component nameplate power and measured power capacity to calculate unit megawatt power generation, the difference in power generation is about 0.1%
In terms of inverters, the power generation pattern of different technology types of inverters in 2023 remains consistent compared to the same period last year, with a year-on-year difference of less than 0.5%. In 2022, due to strategic reasons, the low-voltage side of the box type inverter did not reach 1.1 times the power limit for operation, and the power generation was 4.19% lower than that of the string type inverter; After optimizing the strategy in 2023, the power generation is 1.14% lower than that of string inverters.
The inverter efficiency of different technical routes has reached the manufacturer’s promised value, all of which are above 98%; After more than a year of outdoor operation under actual working conditions, the efficiency difference between domestic IGBT component inverters and imported IGBT component inverters is within 0.1%, and there are no faults.
In terms of brackets, the trend of power generation for different types of brackets in 2023 and 2022 is basically consistent. The overall power generation of tracked brackets is relatively high. Among them, in 2023, the dual axis bracket, vertical single axis bracket, and inclined single axis bracket (with a 25 ° inclination angle) have a higher unit megawatt power generation than fixed brackets by 30.38%, 22.22%, and 21.21%, respectively.
Meanwhile, the tracking bracket failure rate continues to decline, with the highest proportion of full dimensional bracket failure duration reaching 0.0218%, followed by dual axis bracket at 0.0137%; The proportion of one-way tracking bracket failure duration is relatively low, with a flat single axis bracket of 0.0096% and a diagonal single axis bracket of the lowest, at 0.0089%