The estimated lifetime of a PV module is 30 years. Furthermore, the modules' performance is very high providing over 80% of the initial power after 25 years which makes photovoltaic a very reliable technology in the long term.
Most manufacturers in general propose
performance guarantees on the modules after 20 years of 80% of the
initial output power. On the electronic components and accessories
(inverters), the guarantee usually does not exceed 10 years.