Do Solar Panels Last 25 Years?

Among all the renewable energy sources, solar panels are the the most accessible one for families all across the globe who are looking to switch to a greener source of energy. However, solar panels last about a maximum of 25 years to 30 years. So, what happens to solar panels after 25 years?

Performance Decline

Solar panels won’t necessarily need to be replaced after 25 years, but their ability to capture sunlight will be diminished.
They can generate electricity for another ten or even fifteen years after that.
Typically, they operate at 75%-85% of their original capacity after 25 years
Efficiency decreases at an annual degradation rate of about 0.5%-1%.

Factors Behind the Decline

Prolonged exposure to environmental conditions: Exposure to UV radiations, hailstorms and strong winds lead to decline the production.
Temperature: Excessive heat can impair your system’s ability to produce electricity.
Quality of materials: The quality of materials and manufacturing processes also impacts the longevity of solar panels.

Recycling and Disposal

Solar panels are largely recyclable, with components like glass, silicon, and aluminum being reusable.
Solar panels are mandated to include hazardous substances (if disposed of incorrectly) like lead.
These chemicals may seep out when old and damaged panels are dumped, creating dangerous conditions.
Proper recycling infrastructure is vital to manage solar waste responsibly and sustainably.
Efforts are underway globally to improve recycling technologies and processes.

Options for Aging Panels

Regular Maintenance: Regular cleaning and maintaining the panels can improve the life expectancy. Regular AMC services can secure the panels.
Replacement: Old panels can be replaced with newer, more efficient models as technology advances.
Repowering: Systems can be upgraded by integrating new panels alongside older ones to boost energy output.
Second-Life Applications: Panels with reduced efficiency can still power less demanding systems, such as off-grid setups.

Environmental and Economic Impact

Even at reduced capacity, older panels contribute to clean energy production.
Replacement costs may be offset by government subsidies or incentives.
Investing in maintenance and end-of-life recycling minimizes environmental impact and promotes circular energy use.

Conclusion

Solar panels remain a valuable source of renewable energy even after 25 years. With proper care, recycling, and system upgrades, their environmental and economic benefits can be maximized. Transitioning to solar is not only a commitment to cleaner energy but also a step toward a more sustainable and eco-friendly future.

Schedule a call today to discuss how to maximize your solar investment and plan for the future!