A: Solar energy is a locally available renewable and free resource. Electricity produced by PV system is clean and silent. What’s more, the government has up to 40% allowance.
A: in addition to efficiency, another key point is the sunshine. The longer Sunshine time, the more generated energy. it is related to the intensity of sunshine as well, it is less in the morning and at night, more at noon; It is more in Summer and Autumn, less in Winter and Spring.
A: Components efficiency of the system, weather,direction of the system, the installing angle, etc