top of page

Used solar panels: Is it a good idea?

used solar panels

In principle, a single array of solar panels has the potential to serve an individual for a lifetime. Although the rule of thumb suggests that solar panels lose less than 1 percent of their efficiency annually. But even at that, there are reasons why there is a thriving market for used solar panels in the US. 

Frequently, homeowners may decide to replace older solar panels when undertaking roof repairs, often opting for newer and more efficient models in the process. Used solar panels aren’t a bad idea provided you possess a clear understanding of what to anticipate and are adept at navigating the market for pre-owned goods. In this article, we will discuss why used solar panels might be a good fit for your home or not.

What Qualifies as a Used Solar Panel?

So, what exactly makes a solar panel "used"? It's not just about being second-hand; it's a spectrum. From panels that have seen the light on someone's roof for a decade, to those that got a taste of the sun but then were boxed up again—each has its own story, its own level of wear and tear. And yes, there's even a spot for those panels that were bought, unboxed, and then, for some reason, never saw the day. They're all part of the used solar panel family.

Now, let's talk condition. Imagine a scale, with 'practically new' on one end and 'seen better days' on the other. Some panels are in such good nick you'd hardly know they've been used, while others... well, they've clearly been through the wringer. But here's the kicker—not all wear is visible. That's why diving deep into a panel's past is crucial. How long it's been in use, any maintenance records, and yes, even why it's being sold, can give you a clearer picture of what you're really getting.

And let's not forget, the appeal of used solar panels isn't just in their price tag. It's what they represent—a more affordable entry point into renewable energy, making solar accessible to more folks. Plus, opting for used is a nod to sustainability, giving these panels another shot at life instead of ending up as waste.

What Are The Refurbished Solar Panels?

Imagine you've got a solar panel that's been around the block once or twice. Maybe it was part of a setup someone upgraded from, or it had a minor issue that needed fixing. Instead of tossing it out, it gets a second chance through refurbishment. This isn't just a quick wipe-down. We're talking about a thorough check-up, fixing anything that's not working right, and making sure it's all set to do its job again. It's like giving these panels a makeover to bring them back to their glory days.

Why pick a refurbished panel over just any used one? Well, it boils down to knowing you're getting something you can count on. These panels are fixed up to meet certain standards and often come with a warranty that you won't get with just any used panel. It's like the difference between buying a used car from a trusted dealer versus some random person. You get that extra peace of mind.

And here's the best part: refurbished panels are kind to your wallet and the environment. They cost 50%-70% less than new ones, but they're ready to perform without the worry that comes with used gear. Plus, choosing refurbished helps cut down on waste. So, it's good for your pocket, good for keeping things green, and good for getting reliable solar power.

Key Insights on Used Solar Panels

used solar panels

When considering solar energy for your home, used solar panels might seem like a cost-effective choice. However, it's essential to understand what you're getting into. Here are some critical points to consider:

1. Degradation Is Inevitable

Understanding Efficiency Loss: Solar panels, over time, lose efficiency. This doesn't mean they're faulty; it's just the nature of the technology. A used panel might not deliver the energy output you expect, affecting long-term savings.

2. Condition and Performance

Inspect Carefully: Used panels can come with wear and tear from their previous installation. This damage can lead to lower electricity production, directly impacting your utility bill savings. It's crucial to assess the condition of used panels thoroughly before making a decision.

3. Technological Advancements

Stay Updated: The solar industry is rapidly advancing, with new technologies emerging regularly. Older panels, even in good condition, may not be as efficient as newer models. Investing in the latest technology can offer better efficiency and more savings over time.

4. Warranty Concerns

Warranty Matters: New solar panels typically come with manufacturer warranties that protect your investment. Used panels often lack these warranties, posing a risk if they fail or underperform. Without warranty protection, you could face additional costs for repair or replacement.

5. Eligibility for Incentives

Incentive Eligibility: New solar installations can qualify for significant incentives, such as the federal investment tax credit (ITC), which reduces the cost of going solar. Used solar systems may not be eligible for these incentives, potentially increasing the overall cost of your solar project.

Considerations for Purchasing Used Solar Panels

When considering used solar panels for your home, it's important to focus on a few key factors to ensure you're making a wise investment. Here's what you need to know:


Check if the used or refurbished panels come with a warranty. A warranty can offer peace of mind and protect your investment, so knowing how much time is left on it is crucial.

Panel Condition

Be cautious of low-priced panels. A low price might indicate underlying issues such as damaged cells or wiring. It's essential to thoroughly inspect the panels for any signs of wear and tear or damage, as this can affect their performance and, ultimately, your savings.

Service History

Understanding how long the panels were used can give you insight into their remaining lifespan. Panels with a shorter usage period are likely to have more productive years ahead.

Reason for Sale

Knowing why the panels are being sold can provide valuable information about their condition. If the seller is upgrading to a more efficient model, the panels you're considering might still be in good shape. However, if they're selling due to issues with the panels, you might want to think twice.

Professional Installation

Even with used panels, professional installation is key. A solar expert can ensure that the panels are installed correctly and are compatible with your system, maximizing their efficiency and effectiveness.

Considering Costs and Savings

While the initial lower cost of used panels is attractive, consider the potential for additional expenses down the line. Repairs or earlier-than-expected replacements can offset initial savings.

Is Opting for Used Solar Panels Suitable for You?

Deciding whether used solar panels are a fit for your home involves weighing your specific needs, budget, and environmental goals. While the initial lower cost of used or refurbished panels is appealing, it's crucial to consider how they align with your long-term energy plans.

Assessing Your Needs

  • Energy Requirements: Calculate your household's energy consumption. Used panels, with their slightly reduced efficiency, might still meet your needs while offering significant savings.

  • Budget Constraints: If upfront costs are a major concern, used panels offer an affordable entry point into solar energy without the higher investment required for new panels.

When Used Panels Make Sense

  • DIY Projects: For those comfortable with DIY projects, used panels can be a cost-effective solution for small-scale installations.

  • Sustainability Goals: Choosing used panels contributes to reducing waste, aligning with sustainability goals by giving existing panels a second life.


  • Efficiency and Lifespan: Be prepared for potentially lower efficiency and a shorter lifespan compared to new panels, which could mean more frequent replacements.

  • Risk of Damage: There's a higher risk of encountering damaged panels, which could affect performance and savings.

It's essential to conduct thorough research on the panels' condition and the reputation of the manufacturer or seller. Consider seeking professional advice to evaluate whether used or refurbished panels are compatible with your system and to understand any installation nuances.

Wondering whether used solar panels fit your unique needs, or perhaps you're leaning towards brand-new installations? Either way, we're here to provide clarity and support. Drop us a line for a thoughtful discussion on your energy ambitions, financial plans, and environmental goals. Our experts are on standby to offer personalized advice, ensuring you navigate through your options with ease. 


Is it worth buying second-hand solar panels?

Buying second-hand solar panels can be worth it if they're in good condition and suit your energy needs. However, consider potential efficiency losses and lack of warranty.

How much are used solar panels worth?

What happens to solar panels after 25 years?

24 views0 comments


Click Below To Reach Out To Us

bottom of page