What happens to solar panels after 25 years?

Solar panels do not suddenly 'die' at 25 years; their efficiency just drops to about 80% of their original capacity. They will continue generating power for 30-40 years. When you do dispose of them, they are NOT toxic waste. Over 90% of a solar panel is made of highly recyclable materials: glass, aluminum frame, and silicon. In India, e-waste recycling companies are already setting up specialized PV recycling plants to recover the silver and aluminum.