Do I Need a Structural Engineer for Solar Panels?

Raj Singh
August 1, 2023

As the urgency for clean, renewable energy solutions rises, more and more homeowners and businesses in Ireland are switching to solar power. However, one common question during this process is, "Do I need a structural engineer for solar panels?" At Nusolas Energy, we aim to clarify this query and provide comprehensive details.

What Are Solar Panels?

Solar panels are devices that convert light from the sun into electricity. They can power homes and businesses and even contribute to the national grid.

Why Install Solar Panels in Ireland?

In Ireland, you contribute to a cleaner environment by reducing your carbon footprint. Still, you can save on energy bills and earn money by returning surplus energy to the grid.

The Role of a Structural Engineer in Solar Panel Installation

Structural engineers play a vital role in the solar panel installation process. They are responsible for ensuring that the existing structure can handle the additional load of the solar panels. This means evaluating the building's design, the age of the structure, the type of materials used in construction, and many other factors.

Ensuring Safety

One of the primary roles of a structural engineer is to ensure the safety of your solar panel installation. They analyse the structure of your building to verify that it can accommodate the weight and wind load of the solar panels. This is especially important in regions with a lot of wind or snowfall.

Regulatory Compliance

In many jurisdictions, including Ireland, a structural engineer's certification may be required to obtain a permit for solar panel installations. They ensure that your installation is compliant with local building codes and regulations.

Maximising Solar Efficiency

A structural engineer ensures safety and compliance and helps maximise your solar installation's efficiency. They can advise on the optimal positioning and angle of your solar panels to get the most sun exposure and, thus, the most power.

Understanding the Importance of Structural Engineers in Solar Panel Installation

Now, let's delve into the primary topic of this guide: "Do I need a structural engineer for solar panels?". The answer is often a resounding yes. A structural engineer plays an essential role in ensuring the safety and effectiveness of your solar installation.

What Does a Structural Engineer Do?

A structural engineer assesses the building's structure to determine if it can withstand the additional load of the solar panels. They also identify the most effective way to distribute this weight, ensuring your solar installation is secure and efficient.

When Do You Need a Structural Engineer for Solar Panel Installation?

While only some solar installations require a structural engineer's expertise, specific scenarios warrant their involvement.

Older Buildings

If you plan to install solar panels on an older building, a structural engineer must assess the roof's structural integrity. Older buildings may have yet to be designed to carry extra loads on top.

Unusual or Complex Installations

For solar installations that are unusual or complex, you will likely need a structural engineer. This could include panels installed at unusual angles, on unconventional structures, or on buildings with unique architectural features.

Large-Scale Commercial Installations

For large-scale commercial installations, the input of a structural engineer is usually required. These projects often involve larger, heavier panels and more complex mounting systems, requiring more detailed structural analysis.

Nusolas Energy’s Structural Engineering Services

At Nusolas Energy, we take the guesswork out of this process by offering structural engineering services as part of our solar installation packages. Our team of experts ensures that your solar panels are installed safely and efficiently, tailored specifically to the structural characteristics of your building.

The Process of a Structural Engineer's Inspection

Understanding the process of a structural engineer's inspection for a solar panel installation can help shed light on why their expertise is essential.

Site Visit

The process begins with a site visit, where the engineer evaluates the location. They will inspect the roof, checking the construction materials, the condition of these materials, and the structure's design. This also includes examining the foundations and walls for any signs of structural damage or weakness.


Following the site visit, the engineer will conduct an analysis. This involves evaluating the data collected during the inspection, such as the roof material, size, slope, and orientation, the building's location, and the local climate. The analysis will help determine if the building can safely support the solar panels' weight and withstand the additional wind force they might bring.


The final step is producing a comprehensive report. The report will detail the engineer's findings and provide recommendations on whether it is safe to proceed with the installation. If modifications are needed, they will be clearly outlined in the report.

The Benefits of Hiring a Structural Engineer

Hiring a structural engineer for solar panel installation has numerous benefits.

Peace of Mind

Knowing that a professional has assessed your property and ensured its safety provides peace of mind. You can be confident that the installation will not compromise the structural integrity of your property.

Cost Savings

Although hiring a structural engineer incurs an additional cost, it can save you money in the long run. If the building cannot support the extra load of solar panels, you might face costly repairs in the future.

Increase in Property Value

A solar installation vetted by a structural engineer could increase your property value. Prospective buyers may be more inclined to invest knowing that a professional has approved the solar installation.

The Steps Involved in Installing Solar Panels with a Structural Engineer

Step 1: Initial Assessment

The structural engineer initially assesses your property to understand the structure and determine the feasibility of installing solar panels.

Step 2: Design and Planning

Based on the initial assessment, the structural engineer will work with the solar installation team to design a system that optimises energy production while ensuring the structure’s integrity.

Step 3: Permits and Regulations

The structural engineer will help you navigate the permits and regulations required for solar panel installations in Ireland.

Step 4: Installation

Once all permits are obtained and plans are finalised, the structural engineer supervises the installation process to ensure that it adheres to the planned design and meets structural requirements.

Step 5: Inspection and Maintenance

After installation, the structural engineer inspects the system to ensure everything works properly. They can also advise on maintenance to ensure your solar panels remain effective over time.

Conclusion – Do I Need a Structural Engineer for Solar Panels?

The answer to the question "Do I need a structural engineer for solar panels?" is crucial to consider for anyone planning to install solar panels in Ireland. A structural engineer ensures your solar installation's safety, compliance, and efficiency. Nusolas Energy is here to support you throughout this journey. Our solar installation packages include the expertise of structural engineers who will ensure your investment is sound and reliable. Ready to make the switch to solar? Contact Nusolas Energy today to get started on your solar panel installation in Ireland with the guidance of expert structural engineers.

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Frequently Asked Questions

How much does a structural engineer cost in Ireland?

The cost of hiring a structural engineer in Ireland varies depending on various factors, including the project's complexity. On average, it can range from €400 to €1,000.

Do I always need a structural engineer?

While not always legally required, hiring a structural engineer for solar panel installations is highly recommended to ensure your system's safety and longevity.

How long does a structural engineer's report take?

A structural engineer's report can typically be completed within 2 to 4 weeks from the assessment date.

What are the benefits of hiring a structural engineer?

Hiring a structural engineer ensures your solar panel system is safely installed, optimally designed, and compliant with local regulations.

Can Nusolas Energy help me with hiring a structural engineer?

Nusolas Energy offers structural engineering services in our comprehensive solar installation packages.

What if my roof is not suitable for solar panels?

If your roof is unsuitable, a structural engineer can help find alternative solutions, such as ground-mounted systems.

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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.
About Author
Raj Singh

A seasoned professional in the solar industry, Raj Singh is dedicated to illuminating Ireland with the power of the sun. His passion for renewable energy and commitment to sustainability shine through his work in the solar industry.