Most solar companies claim their solar panels will produce at a profitable efficiency for at least 25 years. This means over time, your solar panels will suffer a slight degradation, which is about 0.8-1.2 percent per year of original efficiency.
Most solar companies claim their solar panels will produce at a profitable efficiency for at least 25 years. This means over time, your solar panels will suffer a slight degradation, which is about 0.8-1.2 percent per year of original efficiency.