Why is it difficult to shake the mainstream position of 166 photovoltaic modules in the distributed market?
Since its listing, 166 photovoltaic modules have rapidly occupied the distributed market with their advantages of flexibility, lightness, high efficiency and steady income. At present, it has become the mainstream of photovoltaic module selection in the distributed field.
This article will analyze the differences between ground centralized, household distributed and industrial and commercial distributed projects, and analyze why 166 photovoltaic modules will become the mainstay in the distributed market and firmly stand in the “C position”.
1. Value of large-size photovoltaic modules based on large silicon wafers in ground power plants
The value of large silicon wafers in large ground power plants lies in that the ground market can also accept the increase in the size of photovoltaic modules to a certain extent (from 2.2m of 166 modules) ² Increased to 2.6m ²， photovoltaic modules can maintain considerable reliability and be handled by two people), and the size of photovoltaic modules can be increased by using large silicon wafers. The biggest cost savings of large-size photovoltaic modules are:
1）When the terrain conditions support, the support size increases, which dilutes the single w cost of support and foundation
2）Cable cost saving due to the increase of series power and the improvement of time capacity ratio with series inverter
3）It is the saving of labor cost.
2. User distributed product value analysis
Different from the logic of ground power station, the core of household distribution is to pave the roof to maximize the installation capacity (dilute the cost of BOS and improve the income of investors).
At the same time, the size and weight of photovoltaic modules need to be convenient for one person to install. 166-60c photovoltaic module weighs less than 20kg and covers an area of about 1.8m2. On the one hand, it is suitable in size, which is conducive to flexibly paving all kinds of roofs.
On the other hand, it ensures the convenience of single-person handling and installation. It is widely popular in economically developed countries that pay attention to workers’ working conditions; In less developed countries where a single person can carry more weight, 166-72c modules are widely used, and the weight of photovoltaic modules has increased to 23.5kg.
Therefore, the 182 / 210 photovoltaic modules with the size and weight between the above two and the power of 400W are not particularly competitive. In particular, the 40c-210 photovoltaic module adopts 3 slices.
The increase of slice loss and mismatch increases the cost and efficiency of photovoltaic modules. After the emergence of 415w 166-66c photovoltaic modules, the consumer market is large, and the power of silicon photovoltaic modules is higher, so the more advanced deception is broken.
From the perspective of paving the roof to maximize the installation capacity, 166 photovoltaic modules of three sizes can meet the needs of different application scenarios; In addition, due to the same working current, the three 166 photovoltaic modules can also be used in combination to further improve the utilization rate of the roof.
In addition, the working current of 166 PV modules is lower than 11a, which can widely match distributed inverters, power optimizers and micro Inverters from different manufacturers and power segments around the world. There are many inverter models in the household market, and the certification and power grid access standards in different countries are different.
Therefore, the time cycle and cost required to comprehensively improve the current are very high. It is even more difficult for large silicon photovoltaic modules to challenge the mainstream position of 166 photovoltaic modules in the household market.
3. Value analysis of industrial and commercial distributed products
Small businesses are similar to residential roofs. For large industrial and commercial application scenarios, a large number of photovoltaic modules are usually arranged in pieces (leaving a certain maintenance channel space), rather than carrying two strings of photovoltaic modules on single support like a ground power station, and there is no need for pile foundation, and the amount of support metal is low.
Therefore, the BOS cost savings brought by large photovoltaic modules are significantly reduced, mainly due to slight labor cost savings. As in the household market, improving the efficiency of photovoltaic modules to improve the total installed capacity is the most important.
In addition, 166 PV modules have better load capacity under the installation forms such as four-point installation.
If the roof is flat and easy to handle, large businesses can also apply 182 photovoltaic modules with high efficiency. 210-55c and other ultra-high current photovoltaic modules have no series inverter to match, and ultra-high current also brings higher security risks to roof applications.
However, considering that 182 PV modules have obvious value advantages over 166 PV modules in the ground market, the price difference between the two will exist for a long time, so that the value of 182 PV modules in large-scale industry and commerce is not obvious, and the mainstream position of 166 PV modules cannot be impacted for a period of time.
4. Summary
To sum up, the application scenarios and forms of PV modules in distributed market and ground market are different, which makes the analysis logic and results of product value different. 166 silicon wafer is the silicon wafer specification under the reasonable size of the distributed market.
Several 166 photovoltaic modules are flexibly arranged and matched with mature system end equipment, so it has strong product competitiveness in the distributed market.
