When investing in solar energy, homeowners often focus on panel efficiency, aesthetics, and savings. However, one crucial aspect that's often overlooked—but can significantly impact your long-term experience—is the solar panel warranty. A comprehensive warranty offers peace of mind and ensures that your solar investment continues to perform for years to come.
In this guide, we’ll break down the types of solar warranties, what they typically cover, and how to choose the best one for your home.
A solar panel warranty is a manufacturer's or installer’s promise to stand behind their product or service. It outlines how long the solar panel manufacturer guarantees the performance and workmanship of the solar panels and other system components.
There are generally three types of solar warranties:
Understanding each type can help you make an informed decision.
This warranty covers defects in materials or manufacturing. If your solar panels or other components such as inverters or racking systems fail due to a defect, the manufacturer will typically replace or repair them at no cost.
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Solar panels naturally degrade over time. Performance warranties guarantee that your panels will continue to produce a certain percentage of their original capacity over a specific time frame.
Watch for: Linear warranties (gradual degradation) vs. step warranties (sudden drop-off).
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This wA solar production warranty is a manufacturer's long-term guarantee that your solar panels will continue to produce a certain percentage of their original energy output over time. Unlike a product warranty, which covers defects in materials or workmanship, a solar production warranty focuses specifically on how well your panels perform as they age.
Most solar panel manufacturers offer production warranties that span 25 years, ensuring that your panels won’t degrade too quickly. Solar panels naturally lose a small amount of efficiency each year due to exposure to the elements, but production warranties provide peace of mind by limiting that loss.
A typical solar production warranty will guarantee:
For example, if you install a 400-watt panel with a 25-year production warranty guaranteeing 85% performance, the panel should still produce at least 340 watts after 25 years under standard test conditions.
The solar production warranty helps protect your investment by:
Panels from premium manufacturers like REC, SunPower, Qcells, and Tesla often come with industry-leading performance guarantees and lower degradation rates.
If your solar panels degrade faster than promised, the manufacturer is responsible for:
It’s important to note that actual system performance may also depend on installation quality, shading, weather, and maintenance — which is why choosing a qualified solar installer is just as important as selecting the right equipment.
This warranty is provided by your installer and covers issues resulting from installation errors, such as roof leaks, poor wiring, or incorrect panel placement.
Forme Solar, for example, offers extensive workmanship warranties because we specialize in solar repair—giving you added assurance that your system is installed with precision and care.
Not all warranties are created equal. Here are key aspects to evaluate:
Longer warranties often indicate higher quality. Look for product warranties of at least 25 years and workmanship warranties of 10+ years.
Some warranties only cover parts, not labor. Check whether the warranty includes labor, shipping, and diagnostic costs.
If you plan to sell your home, transferable warranties can increase your home’s value and appeal to buyers.
A warranty is only as good as the company behind it. Choose manufacturers with a strong track record and financial stability.
A great product warranty won’t help if the installation is faulty. Choose an installer like Forme Solar, known for quality workmanship and post-installation service.
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Q: What happens if my panel underperforms? A: Contact your installer or manufacturer. If it's under warranty and underperforming, they will typically repair or replace it.
Q: Do I need to maintain my panels to keep the warranty valid? A: Yes, some warranties require basic maintenance or regular inspections. Check the fine print.
Q: Can I extend my solar warranty? A: Some manufacturers or third-party providers offer extended warranties for an additional cost.
Choosing the right solar panel warranty is about more than numbers—it’s about peace of mind. By understanding the types of warranties and knowing what to look for, you can make a smarter, more secure investment.
At Forme Solar, we help our customers make informed solar decisions by providing transparent communication, high-quality installations, and industry-leading warranties.
Interested in a solar system with solid warranty coverage? Contact Forme Solar today to schedule a free consultation.