How Long Do Commercial Solar Panels Last?

How Long Do Commercial Solar Panels Last?

Solar panels are an excellent way to create electricity while saving money. But the question arises, "How long do solar panels last?" 

This question is paramount when assessing the financial feasibility of a solar energy investment. In recent years, solar panels have become a popular alternative energy source, offering benefits like cost savings, reduced environmental impact, and greater energy independence. However, many are still curious about their lifespan.

In this post, we aim to address this question, considering various factors that influence solar panel lifespans and providing insights on prolonging their durability.

What Parameters Affect the Lifespan of Solar Panels?

Be it residential solar panels or commercial solar panels, it has changed the way we use renewable energy from the sun. You have probably seen them on rooftops and commercial installations, providing clean and long-lasting power. 

People thinking about investing in commercial solar panels often wonder, "How long do solar panels last?"

Generally, solar panel lifespans are about 25 - 30 years, but it doesn't mean they suddenly stop producing energy after 25 years. Instead, their performance gradually degrades, resulting in a reduction in energy production over time.

Of course, some factors affect how long do solar panels last. These include:

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Types of Commercial Solar Panels

You heard right; the type of solar panel you pick can greatly influence the lifespan of solar panels. Cheaper ones often cut corners, using low-quality materials and construction, leading to shorter lifespans. For example, monocrystalline and polycrystalline solar panel lifespans last 25-30 years, while thin-film panels average 10-20 years. Choose wisely, as it impacts solar panel lifespans.

Installation Issue

Solar Installation

Solar panels are typically sturdy, but installing commercial solar panels demands caution for the first time. Overlooking problems like cracks, loose wiring, or a damaged roof during installation can result in significant issues later on. So, working with experienced experts who follow best practices is smart. 

Also Read: How Much do Solar Panels Cost in Canberra?

Lack of Care and Maintenance

solar care

Neglecting your commercial solar panels can significantly impact the lifespan of solar panels, causing efficiency to drop and even permanent damage. So, if you're wondering how long do solar panels last, remember taking proactive steps to care for your commercial solar panels is vital in making them go the distance.

Environmental Factors

Commercial solar panel enduring environmental challenges like snow, high winds, fallen trees, and debris, can affect the solar panel lifespans. Although solar panels are designed to withstand these elements, severe conditions can still pose a threat. Therefore, regular inspection and maintenance become essential in detecting and addressing issues caused by environmental factors.

Physical Wear and Tear

Over time, commercial solar panels can experience physical wear and tear stemming from environmental and accidental impacts. Even minor cracks or damage to protective glass can hinder a panel's performance. Regular checks and timely repairs are vital for tackling these problems and ensuring a longer lifespan of solar panels. 

Even though some of these factors might seem beyond your control, what if you are told they are?!

Also Read: How to Choose the Best Solar Battery for Your Home?

Tips to Maintain and Extend Solar Panel Lifespans

When maximizing your solar panel lifespans, a little maintenance goes a long way. To maintain solar panels and extend the lifespan of solar panels, follow some key tips:

Ask Your Installer For Regular Damage Checks

Extending the life of your commercial solar panels is as simple as regular maintenance. To secure the solar panel lifespans, remember to schedule damage checks with your reputed installer. After all, if you routinely check your car, why not do the same for your solar panels? It's a small effort that can go a long way in ensuring they continue to perform at their best.

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Choose A Reputable Solar Installer

The way your commercial solar panels are installed, the racking system it is installed on, and the location of your solar panels can add to the panel's degradation rate. Being mindful of the installation process and potential threats in their vicinity is vital to maintaining your solar panel lifespans. Choosing a reputable and professional solar installer is an essential step in assuring the longevity, efficacy, and lifespan of solar panels.

Keep Your Panel Clean

dirt on solar

Solar panels work best when nothing is blocking their path to the sun. Dirt and debris can negatively impact the performance by reducing the amount of sunlight that reaches the commercial solar panels. You might be curious about how this aspect affects solar panel lifespans. That's why the best recommended and feasible solution is to get your panels professionally cleaned at least twice a years to mitigate the negative impact 

Also Read: Which Type of Solar Panel is Best for Commercial Use?

When Should I Plan To Replace Your Solar Panels?

Solar panel systems are built for durability and can continue producing electricity even after the 25-year warranty period if they are well maintained. However, over time, they are efficient at energy production versus when they were first installed. 

Replace Your Solar Panels

But you do need to replace your commercial solar panels if:

  • Panels produce inadequate electricity for your home.
  • Poor maintenance with numerous broken panels.
  • Consider upgrading if panels are outdated with better options available.

As mentioned earlier, the lifespan of solar panels is affected by several factors. Solar panels are a substantial investment; most homeowners do not enter them lightly. By doing your homework on the solar panel lifespans and performing routine upkeep to ensure they serve you for decades.

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Answers to the questions of how long do solar panels last and when they require replacement are multifaceted and influenced by various factors. So, with the takeaway from this article, one thing you can take away is that you get what you pay for!

Choosing the right commercial solar panel is crucial. No run-of-the-mill, cheap, or nearby, but a legitimate firm with the expertise you need. After all, you're likely not an expert and need guidance you can trust.

If that's your goal, then there's no need to search further than Kratos Energy, a reputed expert in commercial solar Canberra. With an exceptional blend of experience, combined top-notch quality and installation services, you have no reason to seek beyond us.


  1. Are there any warranties for solar panel lifespans?

Yes, commercial solar panel manufacturers commonly provide warranties, covering defects and performance issues for 10 to 30 years, depending on the manufacturer and product. It's essential to check terms and conditions before buying.

  1. What role does a reputable installer play in panel longevity?

A reputable installer plays a crucial role in panel longevity by ensuring proper installation techniques, using high-quality materials, and adhering to industry standards. It is essential to work with an experienced installer, such as Kratos Energy, who knows all aspects of the process.

  1. What happens to solar panels after 30 years?

Solar panels will continue producing energy after 30 years, but their efficiency will decline. The industry standard lifespan of solar panels is 25-30 years, and warranties can range from 10 to 30 years. Solar panel recycling and re-use are possible.

  1. What causes solar panels to degrade over time?

Solar panels can degrade over time due to a variety of factors, including but not limited to:

- Environment conditions

- Manufacturing defects

- Aging

  1. Do all solar panels have the same lifespan?

No, the lifespan of solar panels can vary based on the type and quality of the panels.

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