How to calculate the warranty period of photovoltaic panels

What should I look for in a solar panel performance warranty?

Ideally, you should look for a solar panel performance warranty with the following conditions: Some solar manufacturers will guarantee a degradation rate as low as 0.25% per year, and a performance warranty period of up to 30 years. The best solar companies offer homeowners an installation warranty of their own.

How long is a solar panel warranty?

Solar panel warranties vary depending on the manufacturer, but in the solar industry, a 10-year product warranty and a 25-year performance warranty are typically considered the minimum standard. However, some manufacturers provide a 25-year product warranty and extend the performance warranty to 30 years. How Much Does a Solar Panel Warranty Cost?

Which solar panels have a 25-year warranty?

SunPower has the best solar panel warranties, with a 25-year product warranty and a power performance guarantee of 92% after 25 years. However, Panasonic also offers some of the best solar panel warranties in the PV industry, with a power performance guarantee of 90.8% after 25 years. What Solar Panels Have a 25-year Warranty?

How do I get a solar panel warranty?

Generally, the most robust warranties are obtained by hiring installation companies certified by the solar brands they represent. Alternatively, long warranties can also be secured from solar manufacturers that provide their own installation services. What Is Not Covered by a Solar Panel Warranty?

What types of warranties cover solar panels?

There are two basic types of warranties that cover solar panels. A product warranty protects you from defects in a solar panel stemming from material quality or manufacturing errors. This is also referred to as an equipment or materials warranty

Are solar panel warranties worth it?

Overall, panel warranties are helpful for saving money on repairs, replacements and energy bills, and they improve the value of your solar energy system overall. The peace of mind you get knowing your multi-thousand dollar renewable energy system is protected is also priceless. What Do Solar Panel Warranties Cover?