How Do Solar Panel Warranties Work? Product Vs Performance

Product Warranty

The product warranty covers defects to the materials, such as a faulty panel.

⚠️ 📦

For example, panels might have a 30 year product warranty, meaning the manufacturer will repair or replace the panels, if any defects occur within the first 30 years.

⚠️ 30 years 🔧

Performance Warranty

The performance warranty covers performance degradation.

📉

So the manufacturer guarantees that the panels will still perform above a certain level, after a certain number of years.

🔋 🗓

As an example, a performance warranty might promise the panels will produce 80% of their rated power, even after 30 years.

80% 🔌 30 years

Hope that was helpful! Now that you know the basics of solar panel warranties, learn about watts and kilowatts.