Photovoltaic Pergola: Mistakes to Avoid Before Installation

1. Neglecting the Sunlight Study

Why this is a common mistake

Many projects fail due to a lack of analysis of solar exposure. A poorly oriented photovoltaic pergola will produce significantly less energy.

What to check

• Ideal orientation: due south
• Panel tilt (usually between 10° and 30°)
• No shadows (trees, walls, neighboring buildings)
• Variation in sunlight depending on the seasons

Having a solar study carried out by a professional is essential before making any decisions.

2. Choosing an Unsuitable or Low-Quality Structure

A photovoltaic pergola is not a standard pergola

Solar panels add weight and significant mechanical constraints.

Common mistakes

• Structure too light or made of low-grade aluminum
• Poor resistance to wind or snow
• Non-certified fasteners
• No anti-corrosion treatment

Best practices

• Opt for a CE-certified structure
• Check the allowable load
• Choose durable materials such as reinforced aluminum or galvanized steel

3. Underestimating Administrative Procedures

Installing a photovoltaic pergola often involves mandatory formalities.

Depending on your project, you may need:

• A prior work declaration
• Urban planning authorization
• Condominium approval
• A request for network connection

Ignoring these procedures can lead to fines, a demolition order, or a refused connection.

4. Not Anticipating Electrical Connection

A photovoltaic pergola produces electricity, but you still need to know how to use it.

Essential questions to ask:

• Self-consumption or resale?
• Battery storage or not?
• Distance between the pergola and the electrical panel
• Compliance with current electrical standards

Poor sizing can greatly reduce the profitability of the solar installation.

5. Focusing Only on Price

The low-price trap

An attractive price can hide:

• Low-efficiency photovoltaic panels
• Limited lifespan
• Insufficient warranties
• Non-existent after-sales service

Elements to compare

• Panel efficiency
• Product and performance warranties
• Certifications (CE, IEC, TÜV)
• Installer experience and references

A photovoltaic pergola is a long-term investment, typically over 20 to 30 years.

6. Forgetting Aesthetic Aspects and Architectural Integration

A photovoltaic pergola is visible all year round. It should integrate harmoniously with:

• The house façade
• The garden or terrace
• The existing architectural style

Common mistakes:

• Poorly chosen color
• Too bulky design
• Proportions unsuitable for the space

The photovoltaic pergola should be considered as an architectural element, not just a technical one.

7. Skipping Maintenance and Monitoring

Contrary to popular belief, a solar installation requires some maintenance.

To plan for:

• Cleaning the panels once or twice a year
• Checking fasteners
• Monitoring electricity production
• Prompt intervention in case of malfunction

Regular maintenance ensures optimal performance and extends the lifespan of the installation.

Conclusion: Properly Prepare Your Photovoltaic Pergola Project

Installing a photovoltaic pergola is an excellent way to produce renewable energy while enhancing an outdoor space.

To avoid costly mistakes, it is essential to:

• Study sunlight exposure
• Choose a high-quality structure
• Follow administrative procedures
• Plan the electrical connection
• Prioritize quality over price
• Pay attention to aesthetics
• Plan maintenance

Working with a specialized professional ensures a project that is profitable, durable, and compliant.