Talking about the overall lifespan of a solar panel it may live up to 25 to 30 years depending on the installation conditions and type of material used for its production.
Monocrystalline solar panel lifespan.
Due to use of pure monocrystal which have wide spectral absorption band results higher efficiency and longer lifespan of monocrystalline solar panel which also results in higher cost of this type solar panel highest efficiency for polycrystalline solar panel registered is 25 but for monocrystalline solar panel efficiency it ranges from 19 22 monocrystalline solar panel lifespan is also one of the highest among the others and recorded around 30 years.
For monocrystalline silicon the most commonly used panel for commercial and residential pv the degradation rate is less than 0 5 for panels made before 2000 and less than 0 4 for panels made after 2000.
On this parameter of lifespan polycrystalline solar panels are not very different but the warranty period offered by the manufacturers may vary.
Monocrystalline solar panel manufacturers will usually offer a 25 year warranty because of the longer lifespan of the product.