Photovoltaic Module Selection

Photovoltaic power generation systems achieve the inverter's rated input voltage by connecting a large number of photovoltaic modules of the same specifications and characteristics in series to form strings. These strings are then connected in parallel to reach the system's predetermined rated power. Due to the large number of devices, they must be arranged at certain intervals to avoid mutual shading, forming an array known as the photovoltaic power generation array. A circuit formed by connecting several photovoltaic modules of the same specifications and characteristics in series constitutes a basic array unit.

Each photovoltaic power generation array includes battery modules of predetermined power, inverters, and booster distribution rooms, among other components. Several photovoltaic power generation arrays are connected through the electrical system to form a photovoltaic power station. Selecting suitable photovoltaic modules is crucial for the investment, operation, and benefits of the entire power station. Crystalline silicon remains the mainstream for solar photovoltaic cells, with monocrystalline silicon cells being the earliest and most technologically mature solar photovoltaic cells. They also offer the highest efficiency among large-scale silicon-based solar cell productions.

Monocrystalline silicon cells are manufactured by cutting and polishing monocrystalline silicon into wafers, followed by processes such as electrode printing and encapsulation. Mature technologies from the modern semiconductor industry, including monocrystal pulling, cutting and polishing, printing, etching, and encapsulation, can be directly applied to monocrystalline silicon cell production. The efficiency of large-scale monocrystalline silicon cell production can reach 13-30%. However, processes like cutting and polishing result in significant silicon material loss. Due to the shape limitations of monocrystalline silicon rods, monocrystalline silicon cells must be made circular, which also affects the arrangement of photovoltaic modules.

(1) Crystalline silicon cell technology is mature, with stable product performance and a long service life.

(2) Among commercially used solar cells, monocrystalline silicon has the highest conversion efficiency, followed by polycrystalline silicon, though the difference between the two is minimal.

(3) Crystalline silicon cell modules have an extremely low failure rate and are the simplest to operate and maintain.

(4) Using crystalline silicon photovoltaic modules in open spaces allows for simple and convenient installation, compact arrangement, and space savings.

(5) Although amorphous silicon thin-film batteries have certain advantages in terms of price, low-light response, and high-temperature performance, their service life is relatively short.

Mangzhong Construction always adheres to the philosophy of "Creating Brilliance Through Quality" and maintains an attitude of "Serving with Heart, Emotion, and Intelligence." With strong technical R&D capabilities in solar power generation systems, engineering design expertise, and extensive project experience, the company strives to repay the trust placed in it by its customers.

Company Name: Jiangsu Mangzhong Construction Co., Ltd.

Business Scope: Photovoltaic Power Station EPC, Solar Power Station Investment

Company Landline: 025-5888 3737   

Mobile Number: 159 5163 4545

Company Website: http://www.mangz.cn