Understanding the Differences: Power Warranty vs Product Warranty for Solar Panels, why there are 10years and 25years different.
Power warranty for solar panels refers to the repair or replacement services promised by the manufacturer within a certain period of time. Most manufacturers provide a 25-year power warranty, which means that if the power output of the solar panel drops below 80% of the rated power within 25 years.
Product warranty for solar panels refers to the manufacturer's commitment to repair or replace any defects in the product within a certain period of time. This period can vary depending on the manufacturer, but is typically between 5 and 10 years.