Photovoltaic Structure: How to Ensure the Durability and Safety of a PV Installation?

Photovoltaic installations are gaining popularity both in Poland and globally. However, to ensure their high efficiency and durability for decades, it is crucial to use the right components and a robust structure. An improper approach to design and installation can lead to financial losses and reduced system performance. In this article, we explain how to maintain the durability of PV installations and the key factors that influence their lifespan.

Lifespan of Photovoltaic Panels – What You Should Know

Photovoltaic panels have a long lifespan, ranging from 25 to 30 years and, under favorable conditions, even up to 40 years. The annual efficiency drop averages around 0.5%, meaning that after a decade, the panels still retain 90–95% of their original performance. The main factors influencing their durability are the quality of components and proper maintenance.

Key data:

• Average lifespan: 25–30 years
• Extended lifespan: up to 40 years with regular maintenance
• Annual efficiency drop: ~0.5%

Understanding these parameters allows investors to better plan and manage their photovoltaic systems over the long term.

What Affects the Safety and Durability of Photovoltaics?

The safety of a photovoltaic system is often associated with fire prevention, but the system’s durability is equally important for its efficiency and profitability. The key aspects include:

• Component Quality: High-quality materials, such as monocrystalline cells, tempered protective glass, and corrosion-resistant aluminum frames, significantly enhance the panels’ durability.
• Weather Conditions: Extreme weather events, such as hailstorms, strong winds, or intense UV radiation, can damage the installation. Panel durability certifications, such as IEC 61215, confirm their resistance.
• Proper Installation: Professional installation following the manufacturer’s guidelines minimizes the risk of mechanical damage and enhances the structure’s stability.
• Maintenance and Servicing: Regular inspections and panel cleaning help maintain optimal performance. Avoiding debris buildup, such as dust or leaves, is particularly important.

Photovoltaic Structure – The Key to a Durable Installation

A suitable photovoltaic structure forms the foundation of a durable and safe solar power system. Key elements to consider include:

• Frames and Fasteners: These should be made from corrosion-resistant materials, such as Magnelis®, Zamex®, PosMAC®, galvanized steel, or aluminum. The structure must be adapted to local wind and snow loads.
• Tilt Angle and Orientation: The optimal tilt angle minimizes the accumulation of snow and dirt while maximizing energy yield.
• Hail Resistance: Panels with tempered glass provide high protection against damage caused by hail.

How to Maintain Photovoltaics to Preserve Their Efficiency and Longevity

Regular maintenance is crucial for keeping the PV system in top condition. Key maintenance actions include:

• Technical Inspections: These help detect mechanical damage, wiring issues, or wear and tear of structural elements early.
• Panel Cleaning: Removing dust, leaves, or bird droppings prevents efficiency drops. Cleaning should be done early in the morning or in the evening to avoid high temperatures.
• Performance Monitoring: Monitoring systems can quickly detect performance drops, allowing for swift corrective actions.

Summary

Maintaining component quality, ensuring proper installation, and performing regular maintenance are key actions that contribute to the efficiency and longevity of PV installations. Investors should choose proven materials and work with experienced professionals to maximize the benefits of renewable energy. Consult with experts to design a system that is perfectly tailored to your needs.