The lifespan of ordinary monocrystalline and polycrystalline solar panels is about 5-8 years.
It is possible that some of the best maintained panels can be used for more than 10 years, but over time, the energy production efficiency of these production panels will increase. The electricity will weaken and the effect will get worse.
So after the solar power generation panel has been used for a while, it needs to be replaced. However, with the continued development of technology, I believe that more advanced power generation panel products will become available. available in the future, and the price may also increase. It will be cheaper and new energies will then become the main trend.