PV Solar system
PV Solar system
  1. Modules: Opt for Grade A panels. The choice should be based on price, avoiding low-cost, low-quality products, such as those with poor busbar quality.
  2. Mounting Structures: Use corrosion-resistant mounts, ensuring modules are at least 30cm above the ground.
  3. Grounding Flat Steel: Design and configure the grounding system appropriately according to the system size. This is a crucial aspect.
  4. DC Terminals: High-quality DC terminals are essential. Poor quality terminals can overheat due to single-point contact in the terminal core, and terminals with poor waterproofing may cause leakage or short circuits in rainy conditions.
  5. DC Cables: Correctly select the size and type of cables. The cable size should be neither too small nor too large, generally 1.2-1.5 times the standard requirement. Too small cables may not carry sufficient load, while too large cables can result in poor terminal crimping. Improper “bunching” of wires should be avoided.
  6. Inverters: Choose high-quality inverters. Pay attention to cooling during installation. Most inverters are IP65 rated for outdoor installation, but they should not be installed in confined indoor spaces, especially in residential areas, to avoid overheating and noise issues. Reading the manual thoroughly is advisable.
  7. AC Cables: Similar to DC cables, select the appropriate size and type. The cable size should be 1.2-1.5 times the standard requirement to ensure adequate load capacity and avoid issues with terminal crimping.
  8. Cable Trays: A well-organized cabling system, whether using trays or simple fixing methods, is vital for the aesthetic appeal and durability of the photovoltaic station.
  9. AC Grid Connection Equipment: Avoid shortcuts in materials and design. Choose the right grid connection switches and lightning protection equipment, and design the grid connection route properly to ensure reliable system operation.


The choice of materials in photovoltaic systems is critical for efficiency, safety, and longevity. High-quality components, appropriate sizing, and proper installation techniques are vital for optimal performance and durability. Each component, from panels to cables and inverters, plays a crucial role in the system’s overall functionality. Ensuring that these components meet specific standards and requirements is essential for the successful implementation and operation of photovoltaic systems.