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Latest data from seven dimensions including components and inverters

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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 are consistent compared to 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.


Compared with the same period last year, the difference in power generation of different size battery cell modules in 2023 is basically the same. The different manufacturing processes of
different manufacturers for components of the same battery cell size can result in differences in the power generation of the components, 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 remains consistent compared to the same period last year in 2023, with a difference of less than
0.5% compared to the same period last year. In 2022, due to strategic reasons, the low-voltage side of the box transformer did not reach 1.1 times the power limit operation, and the power
generation was 4.19% lower than that of the series inverter; After strategy optimization in 2023, the power generation will be 1.14% lower than that of series 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
operating 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, and the overall power generation of tracked brackets is relatively
high. Among them, in 2023, the power generation per megawatt of double axis brackets, vertical single axis brackets, and oblique single axis brackets (with a 25 ° inclination angle) were 30.38%,
22.22%, and 21.21% higher than that of fixed brackets, respectively.


At the same time, the failure rate of tracking stents continues to decline, with the highest proportion of full dimensional stent failures reaching 0.0218%, followed by dual axis stents at 0.0137%;
The proportion of failure time for unidirectional tracking brackets is relatively low, with a flat single axis bracket of 0.0096% and a slanted single axis bracket of 0.0089% being the lowest


In terms of energy storage, after more than a year of practical outdoor operating conditions, the measured battery efficiency of lithium batteries is above 94%, the measured efficiency of liquid
flow batteries is 76.32%, and the efficiency of power type energy storage batteries is over 94%. The measured values can meet the manufacturer's promised values.