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The Importance of Solar Warranties

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Installing a solar power system is a long-term investment in your home, and a very wise decision. By going solar, Valley of the Sun homeowners can take advantage of more than 300 days of sunshine every year. That’s a lot of solar energy!

Solar panel warranties serve a very important purpose as they protect your investment in renewable solar energy and are an important consideration at the time of a solar installation. There are different types of warranties available, so it’s important to understand the differences between them and their level of protection.

Panel and Inverter Warranties

Solar product warranties protect you from defects arising from production errors or material quality. Almost all manufacturers of the major components of solar panel systems have 10-to-15-year warranties. Product warranties for premium panels can have 20-to-25-year warranties. Solar panel product warranties vary based on the manufacturer and model. Inverter warranties are typically 10 to 12 years.

The product workmanship warranty on solar panels covers any physical defects that stem from manufacturing errors including:

  • Defective solar cells
  • Damaged solar cell connections
  • Faulty connectors
  • Defective panel back sheets
  • Loose junction boxes
  • Imperfections in the solar glass or frame

Defects covered by the product warranty, though rare, generally are apparent before or during solar panel installation and testing. Less visible issues such as faulty wiring, corrosion, and premature wear are covered by the manufacturer. Solar panel failures are quite rare. A study by the National Renewable Energy Laboratory found that only 0.05% of 10,000 solar panels will fail.

There is also a performance guarantee that the panels will achieve a certain level of production for a specific amount of time without failing. As solar panels are exposed to the elements, they will naturally lose a small percentage of the ability to generate electricity over time. By year 25, a typical solar panel will still operate at 80% to 90% of its first-year power output.

A professionally installed solar system should perform trouble-free for decades. However, solar panel problems do happen on rare occasions. This is the benefit of having a warranty. If there is a bad panel, it can be swapped out quickly and easily—at no cost.

Cool Blew Solar

Evaluating and comparing panel manufacturer’s product warranty coverage is a smart idea when you’re considering the installation of a new solar system. Ask questions and get informed. At Cool Blew Solar, we’re here to answer your questions and strive to offer the best products that deliver the best results for Arizona homeowners. Call us today to learn more at 623-234-2836.