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Secrets Behind Solar Panel Warranties: What You Should Know in 2024

solar panels on a roof

Solar panel warranties aren't just a nice-to-have; they're essential safeguard for your investment. Why? Because they cover not just the panels but also the brains of the operation—inverters, charge controllers, and yes, even the batteries. 

They  provide comprehensive protection against potential malfunctions and degradation. Importantly, a robust warranty not only secures the functionality and efficiency of your solar system but also enhances the value of your property. Opting for an extended warranty is a prudent decision, ensuring the longevity and performance of your solar installation. So, let's get to the heart of it.

In This Article

Understanding Solar Panel Warranties

Solar warranties are not merely administrative documents; they embody the assurance of long-term reliability and performance of your solar system. Understanding the scope of coverage provided by these warranties is essential, as they play a pivotal role in maintaining the system's efficiency and safeguarding your financial investment.

The significance of solar panel warranties extends beyond mere protection against physical damage; they offer a guarantee of energy production levels, thus ensuring the system's profitability over its lifespan. However, it is important to recognize that warranties vary significantly in terms of coverage and duration, making it imperative to select a warranty that aligns with industry standards and offers comprehensive protection.

Solar panel warranties are categorized into two primary types: product warranties and performance warranties. Product warranties cover the cost of repair or replacement of panels due to manufacturing defects, with the average replacement cost being approximately $1,332. On the other hand, performance warranties ensure that the panels maintain a certain level of efficiency over time, crucial for achieving the expected energy savings and return on investment.

What Solar Panel Warranties Cover

Numerous household appliances come with a standard warranty, providing complimentary replacements within a designated time frame. Solar panels, however, benefit from a variety of warranty types, each designed to shield you from a range of potential concerns.

Product Warranty: Your First Line of Defense

The product warranty is your primary shield against manufacturing defects, ensuring that your solar panels are devoid of material flaws. This warranty is the bedrock of your system's reliability, with industry standards typically offering coverage for 10 years or more. However, the gold standard in the industry is a 25-year coverage, a benchmark set by leading brands such as SunPower and Q Cells. 

The essence of a robust product warranty lies in its ability to replace your solar panels at no extra cost if they falter due to material or workmanship defects. It's wise to seek warranties that promise coverage against panel failure for a minimum of a decade, though many brands now extend this to a quarter-century, reflecting a commitment to durability and customer satisfaction.

Performance Warranty: Safeguarding Your Solar Output

Performance warranties, or power warranties, play a crucial role in guaranteeing that your solar panels maintain their electricity production over time. These warranties address the natural degradation of photovoltaic (PV) cells, ensuring that any decrease in electricity generation occurs at a predictably slow pace. If your panels' performance dips more rapidly than the specified degradation rate—say, 0.50% per year—a performance warranty steps in to rectify the situation, often with a replacement. 

With most manufacturers offering coverage spanning 25 to 30 years, a high-quality panel is expected to retain at least 85% of its initial output after 25 years. The ideal performance warranty would limit degradation to no more than 0.50% annually after the first year, providing extensive coverage against productivity loss.

Installation Warranty: Ensuring Excellence in Installation

The installation warranty complements the product and performance warranties by covering the integrity of the solar installation process itself. This warranty is particularly significant, as it extends protection to the entire photovoltaic system, including components like racking and wiring. While solar manufacturers primarily focus on producing panels, companies like IntegrateSun offer installation services, thereby providing an integrated warranty that encompasses product, performance, and installation. 

Our warranty covers any issues arising from the installation itself, including labor and any potential mishaps that could affect the system's performance. It's our promise to you that the installation of your solar panels is performed by certified professionals who adhere to the strictest industry guidelines.

In summary, navigating the landscape of solar panel warranties is essential for any prospective or current solar panel owner. By understanding the distinctions between product, performance, and installation warranties, you can ensure that your solar investment is well-protected, maximizing both the lifespan of your system and the return on your investment. 

What Is Not Covered by a Solar Panel Warranty?

While these warranties shield your panels from many issues, it's the exclusions that often catch users by surprise. Let's break it down.

First off, remember that solar panel warranties typically don't extend to other critical components of your system—like inverters, racking, and batteries. Each of these parts usually comes with its own warranty, often shorter than that of the panels themselves. For instance, solar batteries and inverters generally boast a lifespan of 10 to 12 years, with warranties around five years or more. Top-tier products like the Tesla Powerwall and LG Chem RESU offer a reassuring 10-year warranty.

And then there's the setup with microinverters, which are attached to each panel rather than a single string inverter for the whole system. Opting for this configuration? You might find microinverters with warranties stretching up to 25 years.

Aside these—there are scenarios that solar panel warranties typically won't cover. Think about it: Can any manufacturer promise a specific amount of electricity your panels will produce over their lifetime? Not really, since that depends on too many variables, like your location's solar capacity, panel orientation, and, of course, the weather.

And if something goes wrong, the cost of labor for repairs isn't always covered. Why? Because manufacturers usually aren't the ones getting their hands dirty with the installation or maintenance.

Lastly, let's talk about Mother Nature's mood swings—lightning strikes, floods, or any other acts of nature that could wreak havoc on your panels. Plus, don't forget about potential breakage, vandalism, or other unforeseen events. These are typically outside a manufacturer's control and, therefore, outside your warranty's coverage.

So, while solar panel warranties offer a solid layer of protection, being aware of these exclusions ensures you're fully informed and ready to maximize your solar investment.

What To Look for in a Solar Panel Warranty

A comprehensive warranty not only promises peace of mind but also guarantees that any malfunctioning panels will be replaced at no extra charge. Here's a closer look at what to prioritize when evaluating solar panel warranties.

Diverse Types of Warranties

It's essential to recognize that solar panels come with distinct types of warranties: one that covers manufacturing defects (product warranty) and another that ensures a certain level of electricity generation over time (performance warranty). Additionally, components such as solar inverters have their own warranties, which are generally shorter than those for solar panels. This differentiation underscores the need to understand the specific protections each warranty offers.


The ability to transfer the warranty to a new homeowner is a significant advantage. If you're contemplating selling your property, a transferable warranty can make your solar system more appealing to potential buyers, offering them continued coverage. This feature enhances the value of your investment, making it a critical factor to consider.

Labor Costs

While product warranties typically cover the replacement of faulty panels, they may not always include the labor costs associated with their replacement. Some warranties, however, do cover labor up to a certain amount. It's advisable to inquire about this aspect, as the best solar panel installation companies often provide their own workmanship warranties, potentially covering any labor costs not included by the manufacturer.

Understanding Exclusions and Limitations

No warranty offers blanket coverage, and it's vital to be aware of what's not included. For instance, damages from extreme weather conditions or external fires may fall outside the warranty's scope. Knowing these limitations helps set realistic expectations and underscores the importance of thoroughly reviewing warranty documents before making a decision.

These factors collectively determine the robustness of the warranty, ensuring that your solar panels remain a reliable and cost-effective source of energy for years to come.

Things that Can Void a Solar Panel Warranty

Surprisingly, certain actions can inadvertently void your warranty, leaving you unprotected. Let's dive into what you need to watch out for:

  1. DIY Installations or Repairs: Tempted to fix or install panels yourself? Think again. Solar panel warranties often require that only certified installers perform these tasks. Before you wield that wrench, remember—reaching out to your solar company is a smarter move.

  2. Using Harsh Chemicals: Solar panels are robust, but they're not invincible. Exposing them to corrosive substances can damage the panels and void your warranty. Always follow the manufacturer's cleaning guidelines.

  3. Unlicensed Repairs: It might seem convenient to have the local handyman work on your system, but if they're not licensed for solar repair, you could be risking more than just a quick fix.

  4. Neglecting Maintenance: Just like any other part of your home, solar panels thrive on a bit of TLC. Regular maintenance is not just about keeping them clean; it's about ensuring they operate efficiently for years to come.

  5. Unauthorized Modifications: Got an idea to tweak your system for better performance? Consult your solar installer first. Unauthorized changes can not only void your warranty but also affect the system's safety and effectiveness.

  6. Switching Repair Companies: If your warranty specifies that only the original installer can perform repairs, sticking to this stipulation is vital. Opting for a different company could leave you without coverage.

Remember, your solar panel warranty is there to protect you—but only if you adhere to its terms. Always read the fine print and when in doubt, reach out to your solar installer for clarity. This way, you safeguard your warranty, your investment, and ultimately, your peace of mind.

How to File a Solar Panel Warranty Claim?

Here's a streamlined guide to navigate the process smoothly, ensuring you receive the support and resolution you're entitled to, minus the headache.

Step 1: Verify Coverage

First things first—check your warranty details. Make sure the issue you're facing is indeed covered. This step saves you time and sets clear expectations.

Step 2: Gather Your Docs

Round up all necessary documentation before reaching out. This includes your purchase proof, panel model details, and any warranty paperwork you have. Being prepared streamlines the process.

Step 3: Reach Out

Contact the warranty claims department of your panel manufacturer or installer. Facing a performance hiccup? The manufacturer is your go-to. Roof leak issues? Your installer should be the first call.

Step 4: Inspection Time

An inspection will likely be scheduled to assess the situation. Ensure you're available to grant access, facilitating a swift evaluation.

Step 5: Provide Additional Info

Post-inspection, you may need to submit further details or documentation. Promptly providing what's requested can expedite your claim.

Step 6: Keep Tabs

Stay proactive and follow up on your claim until resolution. Persistence pays off.

Remember, choosing a reputable installer and opting for quality panels from the get-go can significantly reduce the likelihood of future claims. And if you're pondering a solar upgrade or just starting your solar journey, our team offers expert advice and unbeatable warranty protection


Will solar panels get cheaper in 2024?

Solar panel prices may continue to decrease in 2024 due to advancements in technology and increased production efficiency. However, market demand and supply chain factors could influence final costs.

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What voids solar panel warranty?

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