Solar panel manufacturer warranty period

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?

What is a performance warranty on a solar panel?

A performance warranty guarantees a maximum level of degradation – typically between .25% and .75% – per year so that in 25 years the panel will still have 80-90% of the power output it did in its first year. Performance warranties are important for sizing solar systems to maintain 100% offset for 25 years.

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

What does a solar installation warranty cover?

While manufacturer warranties primarily cover issues related to the solar panels themselves, such as material defects, workmanship defects, and loss of power output, the solar installation warranty extends additional protection to the entire photovoltaic system.

Do solar companies offer warranties?

Solar companies offer warranties for their solar panels and related equipment since consumers want assurances and guarantees on such a large purchase. However, most solar warranties can be a little confusing for the average person to understand, as they contain complicated technical and legal jargon.