How long will a solar panel system last?
Solar panels are known to last 40 years or longer. Typical guarantees of a solar panel include five years workmanship and materials warranty and a 20- 25 year performance warranty. The typical PV panel performance warranty will guarantee 90% of rated production for 10- 15 years, and 80% for 20- 25 years. Solar panels are designed to withstand hail, severe wind and weather conditions assuming proper installation.