How to Choose Qualified PV System Accessories and What Warranty to Expect?

It is recommended to choose system accessories certified by state-approved certification bodies, and the models, specifications, and manufacturers of key components and raw materials should be consistent with the certified products. In addition, the specifications, models, and technical parameters of all system accessories should match the design of the whole system. Generally speaking, PV modules are required to carry at least a 5-year warranty, and inverters at least a 2-year warranty.