كم من الوقت تدوم الألواح الشمسية؟ حوالي ٢٥ سنة إلى ٨٠٪ كفاءة About 25 years to 80% efficiency. 0 Share This Previous Post← Solar is following the same trajectory as smartphones Solar is following the same trajectory as smartphones Next PostSolar fits very well with nature → Solar fits very well with nature You May Also Like . This photograph will someday be in a museum View Post . How long does it take to install a solar system? View Post . Contemporary Amperex Technology Limited (CATL) is the largest battery manufacturer in the world View Post