What is a warranty on a solar photovoltaic system?

When deciding on a solar photovoltaic system, there are a variety of guarantees and warranties. The two that are most commonly referenced are the Production Guarantee and Performance Guarantee. These are easy to confuse, especially since they are often misused interchangeably.

Do solar PV plants have a performance warranty?

Contracts to build solar PV plants usually contain a performance warranty to ensure that the owner receives an asset that delivers the agreed-upon minimum performance level. But can warranties and assessment methodologies guarantee that plant performance is being correctly assessed?

Do solar energy systems need a warranty?

While solar energy systems are built to withstand decades of outdoor use, the right warranty coverage assures extra peace of mind by protecting your investment against potential malfunctions, damage, or underperformance.

How long does a solar installation warranty last?

Offered by your installer, contractor, or solar company, installation or workmanship warranties are essential in guaranteeing the quality, longevity, and ROI of your installation. Workmanship warranties can differ widely between solar companies, with coverage typically lasting anywhere between 1 to 10 years, depending on your installer.

Does a solar panel warranty cover labor costs?

Solar panel warranties typically won't reimburse for labor costs associated with installing new equipment or shipping fees for new equipment. Comparisons should focus on product warranty terms, power guarantees, labor warranty terms, transferability and bankability, and the availability of an extended warranty.

Will installing solar panels void my roof warranty?

No, if a certified professional installs your solar panels correctly, this shouldn’t void your roof warranty. In the rare case that your mounting penetrations do void your roof warranty, the workmanship warranty from your solar installer may also cover the parts of your roof where the system is installed.