What Should You Know About Solar Panel Warranties?

Understanding Solar Panel Warranty Terms

When evaluating solar panel warranties, it’s essential to understand the terms and conditions. Look for manufacturers that provide a 25-year warranty, as this has become the industry standard. Polycrystalline solar panels, for example, may have a warranty period of 25 years, with a minimum power output guarantee of 80% at the end of that period. This means that even after 25 years, the panels should still be producing at least 80% of their initial power output.

Performance Guarantees

Some solar panel manufacturers offer performance guarantees that go beyond the standard 25-year warranty. For instance, SunPower offers a 25-year warranty with a minimum power output guarantee of 92.5%. This means that their solar panels should still be producing at least 92.5% of their initial power output after 25 years. When evaluating performance guarantees, look for manufacturers that provide specific percentages and clear definitions of what is covered.

Warranty Coverage and Maintenance

It’s also essential to understand what is covered under the warranty and what is not. Typically, warranties cover defects in materials and workmanship, but may not cover damage caused by natural disasters, improper installation, or maintenance issues. To ensure that your solar panels continue to perform optimally, it’s crucial to follow the manufacturer’s maintenance recommendations and schedule regular inspections with a qualified solar panel technician. By understanding the terms of your solar panel warranty and following proper maintenance procedures, you can ensure that your solar panel system remains efficient and effective for years to come.