Which Solar Panels Are Best for Commercial Sites?

Joe Brennan
Jul 11, 2024

Are you a business owner struggling to find the best solar panels for your commercial site? Choosing the right solar panels can be challenging with so many options available. 

In this blog, we will guide you through the different types of solar panels, their benefits, and how to choose the best one for your needs. We'll also highlight key factors to consider for commercial use. 

Let's get into the details and help you make an informed decision that will save you money and boost your business sustainability.

What Are Solar Panels? And How Do Solar Panels Work?

Solar panels are devices that convert sunlight into electricity. They are made up of many small units called solar cells, usually made of silicon.

These cells capture sunlight and turn it into electrical energy, which can be used to power homes, businesses, and other buildings. Solar panels come in various types, each with different features and benefits.

Solar panels work by absorbing sunlight with their solar cells. When the sunlight hits these cells, it causes a reaction that generates electricity.

This electricity is then converted into a usable form by an inverter, which can power lights, machines, and other equipment. The process is clean, renewable, and efficient, making it a popular choice for many businesses.

Why Should Commercial Sites Consider Solar Panels?

Solar panels offer numerous benefits for commercial sites, making them a valuable investment for any business. Here are three key reasons why commercial sites should consider installing solar panels:

Long-Term Cost Savings

Installing solar panels can save businesses a lot of money over time. Although the initial cost may be high, the long-term savings on electricity bills can be significant. Solar panels can reduce your electricity costs, helping your business save money every month.

Environmental Impact and Sustainability

Solar panels are a green energy source, meaning they don’t pollute the environment. By using solar energy, businesses can reduce their carbon footprint and contribute to a cleaner, healthier planet. This is a great way to show your company’s commitment to sustainability.

Energy Independence and Reliability

Relying on solar panels can make your business less dependent on traditional energy sources. This can be especially important during power outages or energy shortages. Solar energy provides a reliable and steady source of power, ensuring your operations run smoothly without interruptions.

Types of Solar Panels Suitable for Commercial Use

When choosing solar panels for commercial use, it's important to understand the different types available. Here are the main types of solar panels suitable for commercial sites:

Monocrystalline Solar Panels

Monocrystalline panels are made from a single crystal structure. They are known for their high efficiency and sleek appearance. They are often more expensive but offer better performance, especially in smaller spaces.

Polycrystalline Solar Panels

Polycrystalline panels are made from multiple silicon crystals. They are generally less efficient than monocrystalline panels but are also more affordable. These panels are a good option for larger spaces where efficiency per square foot is not as critical.

Thin-Film Solar Panels

Thin-film panels are made by placing one or more layers of photovoltaic material on a substrate. They are lightweight and flexible, making them easy to install in various locations. However, they are generally less efficient than both monocrystalline and polycrystalline panels.

Factors That Make Solar Panels Best for Commercial Use

Choosing the best solar panel for your commercial site depends on several factors. Here's which type is best depending on each factor:


If efficiency is your main concern, monocrystalline panels are the best choice. They have the highest efficiency rates, meaning they can generate more electricity from the same amount of sunlight compared to other types. This is especially important if your commercial site has limited space for solar panels.


For businesses looking to minimise upfront costs, polycrystalline panels offer a good balance between performance and price. While they are slightly less efficient than monocrystalline panels, their lower cost makes them a popular choice for larger installations where space is not a constraint.

Durability and Warranty

Monocrystalline panels typically come with longer warranties and have a reputation for lasting a long time. If you want a durable and long-lasting option, monocrystalline panels are a solid choice. Polycrystalline panels also offer good durability, but thin-film panels might not last as long.

Easy Installation

If your commercial site has unique installation needs, such as a roof that cannot support heavy panels, thin-film panels are an excellent option.

They are lightweight and flexible, making them easier to install in a variety of locations. However, keep in mind that their efficiency is lower, so you might need more panels to achieve the same energy output.

By considering these factors, you can choose the best type of solar panel for your commercial site, ensuring you get the most value and performance from your investment.

Steps to Choosing the Best Solar Panels for Your Commercial Site

Choosing the best solar panels for your commercial site involves several important steps. Here are the key factors to consider:

Assess Your Energy Needs

Start by evaluating how much energy your commercial site uses. Look at your electricity bills to understand your energy consumption. This will help you determine the size and number of solar panels you need to meet your energy requirements.

Evaluate Your Available Space

Check the amount of space available for installing solar panels. This includes the roof, ground area, or any other structures that can support solar panels. The amount of space will influence the type and number of panels you can install.

Determine Your Budget

Consider your budget for the solar panel installation. This includes the cost of the panels, installation, and any additional equipment needed. Knowing your budget will help you choose between different types of panels, such as monocrystalline, polycrystalline, or thin-film, based on their cost and efficiency.

Research Panel Efficiency

Look into the efficiency ratings of different types of solar panels. Higher efficiency panels like monocrystalline will generate more electricity in a smaller space, but they might be more expensive. Compare the efficiency to your space and budget constraints.

Check Durability and Warranty

Examine the durability and warranty of the solar panels. Long-lasting panels with good warranties are a better investment, as they will provide reliable service for many years. Monocrystalline panels typically offer the best durability and warranties.

Consider Installation and Maintenance

Think about the installation process and maintenance requirements of the solar panels. Thin-film panels are easier to install due to their lightweight and flexible nature, but they might require more maintenance over time. Choose panels that fit your site’s installation needs and maintenance capabilities.

Consult a Professional

Finally, consult with a professional solar panel installer like Going Solar. We can provide expert advise customised to your specific needs, space, and budget. A professional can also help ensure that the installation is done correctly and efficiently.

By following these steps, you can make an informed decision and choose the best solar panels for your commercial site, ensuring you get the maximum benefit from your investment.


Choosing the right solar panels for your commercial site involves understanding your energy needs, available space, budget, and the different types of panels. By considering efficiency, cost, durability, and installation requirements, you can make an informed decision. 

Solar panels offer significant long-term savings, environmental benefits, and energy reliability. Are you ready to go solar?

Contact Going Solar today to explore the best solar panel options for your business and start enjoying the benefits of clean, renewable energy. Let's make your commercial site more sustainable and cost-effective!

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Frequently Asked Questions

What are the best types of solar panels for commercial use?

The best types of solar panels for commercial use are monocrystalline, polycrystalline, and thin-film panels. Monocrystalline panels offer high efficiency, polycrystalline panels are cost-effective, and thin-film panels are lightweight and flexible.

How do I choose the right solar panel for my commercial site?

To choose the right solar panel, consider factors such as your energy needs, available space, budget, efficiency, durability, and installation requirements. Consulting a professional installer can also help you make the best decision.

Are monocrystalline panels worth the extra cost for commercial sites?

Monocrystalline panels are worth the extra cost if you need high efficiency and have limited space. They provide more electricity per square foot compared to other types, making them ideal for maximising energy output.

What maintenance is required for commercial solar panels?

Commercial solar panels require minimal maintenance. Regular cleaning to remove dust and debris, and periodic inspections to check for any damage or issues, are usually sufficient to keep them functioning efficiently.

Can solar panels provide enough energy for a large commercial site?

Yes, solar panels can provide enough energy for large commercial sites. By accurately assessing your energy needs and installing the appropriate number and type of panels, you can generate sufficient power for your operations.

How do solar panels impact the value of a commercial property?

Solar panels can increase the value of a commercial property by reducing energy costs and enhancing sustainability. Properties with solar installations are often more attractive to buyers and tenants who prioritise green energy solutions.

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*FYI, parts of this blog post were drafted by artificial technlogy. But rest assured, it's been thoroughly researched, edited, reviewed and me & my team.
Author Fahad Zahid
Founder @ Going Solar

Joe Brennan, the founder of Going Solar, is dedicated to making solar power mainstream in Ireland and meet SEAI objectives. With a focus on affordability and sustainability, he is bringing renewable energy solutions to homes, reducing costs & environmental impact.