Installing solar panels is a smart way to cut energy bills and make your home or business more environmentally friendly. While the benefits are clear, the process can come with a few challenges.
Whether you’re planning a rooftop system or a ground-mounted array, being aware of common mistakes can save you time, money, and stress. Many people rush into solar installations without proper planning or expert advice, which can lead to poor results.
So in this blog, we’ll explore the 7 most common mistakes made when installing solar panels. By understanding what to avoid, you’ll be in a much better position to make the most of your investment and enjoy long-term energy savings.
7 Common Mistakes to Avoid When Installing Solar Panels
Installing solar panels is a smart step toward energy independence and lower utility bills, but it’s important to get it right the first time. Avoiding these common mistakes can help you maximise your system’s performance, savings, and lifespan.
1. Skipping a Proper Site Check
One of the most common mistakes is installing panels without checking if your property is actually suitable. Not all roofs or plots of land are ideal for solar.
For example, if your roof is shaded by trees or nearby buildings, your panels may not get enough sunlight to work well. Likewise, a roof that faces the wrong direction or has an unsuitable angle can lower the system’s performance.
In Ireland, south-facing roofs tend to produce the most energy. However, this alone is not enough. If the roof is too old or in poor condition, it might not support the system safely.
That is why it is important to have a professional survey your site before you begin. A proper assessment can highlight any issues and offer solutions, such as trimming trees or reinforcing your roof structure.
2. Going for the Cheapest Option
It is understandable to want to save money, but choosing solar panels based on price alone often leads to disappointment. Low-cost panels usually come with trade-offs, such as shorter warranties, lower efficiency, and reduced durability. Over time, this could mean higher maintenance costs and less energy savings.
Instead, it is better to focus on long-term value. A slightly higher upfront cost can give you more reliable performance, longer-lasting equipment, and confidence in your investment. It is worth considering things like manufacturer reputation, warranty coverage, and how well the panels meet your energy needs.
3. Ignoring Rules and Paperwork
Next, many people overlook local regulations and paperwork. This is a costly error. Assuming your installer will handle everything or skipping permits altogether can result in delays, fines, or even removal of your system if it does not meet the proper standards.
Before installation, make sure to check with your local council about any planning permissions that might be needed, especially if you live in a listed building or conservation area.
It is also important to speak with your energy provider to understand how to connect your system to the grid. In addition, some government incentives or rebates may be available, but they often require specific documents and approval in advance.
4. Choosing the Wrong System Size
Getting the size of your system wrong is another common issue. If your system is too small, it will not generate enough energy to cover your needs. This limits your savings.
On the other hand, if your system is too large, you might end up paying more than necessary, especially if local rules limit how much surplus energy you can sell back to the grid. To avoid this, take time to review your past energy use and think about future needs.
For example, will you be adding an electric vehicle or home office equipment? A good installer can help you find the right system size by running detailed performance estimates and energy usage simulations.
5. Trying to DIY the Installation
While doing it yourself might seem like a way to cut costs, solar panel installation is not a simple job. It involves electrical work, proper mounting, and meeting safety codes. Mistakes can be dangerous, causing system damage or even invalidating your warranties.
By hiring a certified installer, you ensure the job is done safely and legally. Professionals will also position your panels correctly to maximise sunlight exposure, which helps improve your system’s overall performance and return on investment.
6. Forgetting About Maintenance
Many people assume that once solar panels are installed, they do not need any attention. While it is true that solar systems are low-maintenance, they still need occasional care to stay efficient.
For example, dust, bird droppings, and leaves can block sunlight and reduce energy output. Wires and connectors should also be checked from time to time for any wear or faults.
It is a good idea to set a reminder for seasonal cleaning and occasional inspections. Additionally, many systems now include monitoring apps, so you can keep an eye on performance and spot any problems early.
7. Overlooking Battery Storage
Finally, a mistake that is easy to make is forgetting about energy storage. If your system does not include a battery, any extra power it produces during the day is usually sent back to the grid.
In many areas, the return you get for this surplus energy is minimal. Installing a battery allows you to store unused energy and use it later, such as in the evening or during a power cut.
This not only gives you more control over your usage but also helps increase your savings and energy independence. Even if you do not plan to add a battery right away, it is worth choosing a system that allows for future storage upgrades.
Conclusion
Installing solar panels is a smart way to cut energy costs and reduce your carbon footprint. But to get the best results, it’s important to avoid common mistakes such as poor planning, choosing the wrong system, or overlooking essential checks.
This is where SPV Energy can help. Our team provides straightforward advice and reliable support to ensure your solar installation is done right. If you want to avoid costly errors and make informed choices, get in touch with SPV Energy today for expert help with installing solar panels the right way.
FAQ’s
1. How do I know if my roof is suitable for solar panels?
A professional site check is essential. Factors such as shading, roof angle, direction, and structural condition all affect whether your roof can support an efficient solar system.
2. Is it a good idea to choose the cheapest solar panels?
Not always. Low-cost panels can mean lower efficiency, shorter lifespans, and higher long-term costs. It’s better to choose panels based on value, performance, and warranty.
3. What permissions do I need before installing solar panels in Ireland?
In most cases, you don’t need planning permission for home solar panels. However, it’s still important to check with your local council. You must also follow grid connection rules and send in the right paperwork if you’re applying for grants.
4. What happens if I install a solar system that’s too big or too small?
An undersized system may not meet your needs, while an oversized one can be unnecessarily expensive. It’s best to base the size on past and expected energy usage with help from your installer.
5. Can I install solar panels myself to save money?
DIY installation is risky and not recommended. It can lead to safety issues, reduced performance, and voided warranties. Always use a certified installer for safety and efficiency.
6. Do solar panels require regular maintenance?
Yes, they do. Although they are low-maintenance, panels need occasional cleaning and checks to remove dirt or debris and ensure all parts are working correctly. Monitoring tools can help track performance.