How to select components to facilitate on-site installation and system matching in distributed projects, and bring the most stable and reliable benefits to customers. Under normal circumstances, distributed photovoltaic projects can be divided into three categories based on the installed capacity on the roof: small household, large household&small and medium-sized industrial and commercial, and large industrial and commercial. Different application forms have different logic for component selection, and the corresponding components are not necessarily the larger the size, the better. as follows:

Firstly, how to select components for small household projects

The core concept of small household distributed project design is that the higher the installed capacity, the greater the revenue. However, due to the small size and diverse forms of residential roofs, it is particularly important to maximize the use of roof area. In addition, the installation conditions are slightly strict, and the installation of large-sized components is relatively difficult.

Based on this, taking into account the current situation of the industry and the requirements of small household systems for component power, electrical parameters, size, and weight, the M6-60 and G1-72 versions of components are more convenient for single person handling and installation in terms of size and weight (both components are controlled at around 20kg in weight). Among them, the M6-60 version components have a short-circuit current of less than 11.5A and can adapt to mainstream inverter models in the global market. When the roof area is slightly limited due to the G1-72 version components, the smaller M6-60 version is better. Through diversified size selection and more flexible component layout, the roof installation capacity is maximized, maximizing customer revenue.

Secondly, how to select components for large household and small and medium-sized industrial and commercial projects

Large scale household and small and medium-sized industrial and commercial projects are between small household and large industrial and commercial projects, with moderate usable area and slightly relaxed installation conditions. The BOS cost reduction brought by high-power components is gradually reflected, but its core logic is still to use limited area to increase installed capacity.

This type of roof has a relatively large area, but may have irregular, scattered, inconsistent roof orientations, and low utilization rates. To ensure the safety, reliability, and power generation of the project, it is necessary to comprehensively consider roof factors related to the layout of maintenance channels, parapets, daylighting strips, ventilation windows, air conditioning, fresh air equipment, stairwells, elevator machine rooms, and other components.

Based on the above, the M6-72 version, M10-54 version, G12-50 version, and components stand out. This series of components has relatively flexible dimensions, suitable weight, high power and efficiency, and is easy to install. Its electrical parameters are compatible with mainstream inverter models in the global market, which can bring better profits to customers.

Then, how to select components for large-scale industrial and commercial projects

The core concept of large-scale industrial and commercial rooftop systems is still that the higher the installed capacity, the greater the revenue, while considering the BOS savings brought by high-power and high-efficiency components. This type of project has a relatively regular roof, consistent orientation, high usable area, and a relatively flat roof, which can assist in mechanized lifting and handling equipment, facilitating product handling and installation. Therefore, the component selection logic can refer to ground power stations. If the load requirements for the roof are relatively high (color steel tile roof), components with smaller unit weight and higher energy density will be more competitive.