How many years of warranty for photovoltaic panels and components

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?

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 is a residential solar company warranty?

Other residential solar company warranties cover one component of the entire system, leaving you with up to 4 separate warranties (panel, inverter, racking, monitoring). With other residential solar companies: SunPower stands behind your entire system, not just the panels. We also:

Why are solar panel warranties important?

Solar panel warranties are important to make sure you get the expected electricity savings over time. For example, if your solar energy system is expected to save at least $1,200 per year, a 25-year warranty means you get $30,000 in guaranteed savings. Solar panel warranties also help you qualify for favorable loan conditions.

Do I need a solar power warranty?

In most situations, solar panel installations are considered a permanent attachment to a home. Thus, many homeowners insurance policies provide some overlapping coverage, so you might not need a separate solar power warranty for certain issues.