Floating PV: Specialized Cabling Solutions for Solar Systems on Water

Floating PV systems effectively utilize unused spaces and enhance energy generation through the cooling effect of water. This technology is particularly significant in regions where land for solar installations is scarce or expensive. However, unlike traditional solar systems on dry land, floating PV systems face several unique challenges. Cables and components must be exceptionally durable to meet these requirements:

• Corrosion Resistance:
  Cables used on water are at risk of corrosion from both freshwater and saltwater. They must be resistant to moisture from constant water contact and chemical influences.

• Mechanical Durability:
  Floating PV systems must withstand wave movements and varying water temperatures. Cables must be mechanically stable yet flexible enough to adapt to water movements without sustaining damage.

• UV and Weather Resistance:
  Cables are exposed to direct sunlight, intensified by the reflective surface of the water. They require high protection against UV radiation and must endure extreme weather conditions such as rain or snow.

• Maintenance and Accessibility:
  Floating PV systems are located on water, making maintenance and inspection of cables and connections more challenging. Long-term reliability of cabling solutions is therefore critical.

Floating PV systems effectively utilize unused spaces and enhance energy generation through the cooling effect of water. This technology is particularly valuable in regions where land for solar installations is scarce or expensive. However, unlike traditional solar systems on dry land, floating PV systems face unique challenges. Cables and components must meet high durability standards to address these requirements:

• Corrosion Resistance:
  Cables used on water are exposed to the risk of corrosion from freshwater or saltwater. They must be resistant to moisture from constant water contact and chemical influences.

• Mechanical Durability:
  Floating PV systems must withstand wave movements and varying water temperatures. Cables must be mechanically robust yet flexible enough to adapt to water movements without sustaining damage.

• UV and Weather Resistance:
  Cables are exposed to direct sunlight, intensified by the reflective surface of the water. They require excellent protection against UV radiation and must withstand extreme weather conditions, such as rain or snow.

• Maintenance and Accessibility:
  Floating PV systems are located on water, making the maintenance and inspection of cables and connections more complex. Long-term reliability of cabling solutions is, therefore, essential.

HIKRA® SOL cables are specifically designed to address these challenges, providing reliable, durable, and efficient solutions for floating PV installations.

HIKRA® SOL cables provide the ideal solution for the specific requirements of floating PV systems. With robust materials, electron-beam cross-linked compounds, and double insulation, they are exceptionally durable and long-lasting. Beyond meeting the strict TÜV 2 Pfg 2750 standard, specifically developed for floating PV systems, HIKRA® SOL cables comply with all relevant standards, fire safety regulations, and undergo additional testing to exceed standard requirements. This ensures their ability to withstand even the most extreme conditions.

• Enhanced Water Resistance:
  The cables feature a specialized compound that provides excellent water-repellent properties, making them ideal for water-rich environments.

• High Mechanical Stability:
  They are resistant to mechanical stresses caused by wave movements, abrasion, and temperature fluctuations.

• TÜV 2 Pfg 2750 Certification:
  The cables meet the specific requirements for floating PV systems, ensuring high safety and reliability.

• Long Lifespan and Weather Resistance:
  With protection against UV radiation and extreme weather conditions, the cables guarantee a long operational lifespan.

HIKRA® SOL cables are designed to support the efficiency and reliability of floating PV systems, offering a high-performance solution for demanding environments.

An electron-beam cross-linked compound is a material where polymer chains are bonded together through the application of electron beams. The electrons break specific chemical bonds within the polymer chains, allowing them to interconnect. This chemical process, known as "cross-linking," creates a stronger and more stable network, enhancing the material's temperature resistance, water resistance, lifespan, and mechanical stability. This makes it particularly suitable for demanding applications.

In addition to high durability, the ease of installation of solar cables is a critical factor, as poor installation can impact both longevity and connection quality. Pre-assembled and labeled cable reels combined with HISkon® wiring harnesses and HISbox® string boxes offer a simple plug-and-play solution for fast and secure installation—eliminating the need for extensive on-site adjustments.

HISkon® wiring harnesses and connectors are industrially prepared for direct on-site use, making their integration into floating structures on land especially straightforward. The HISbox® string box is made from standardized, certified components and can be equipped with additional protective features, such as a cover shielding against solar radiation, heat, and rain. This cover also allows constant air circulation, ensuring the cooling of components and extending their lifespan.

• Shorter Installation Times:
  Thanks to pre-assembled wiring harnesses and connectors, floating PV systems can be installed quickly and easily. Installation guides are also included with HISbox® string boxes.

• Increased Safety:
  All components undergo rigorous testing to ensure reliable performance under extreme conditions.

• Highest Quality:
  Automated manufacturing processes and precise quality controls guarantee that every cable and connection meets the highest standards.

Floating PV technology holds tremendous potential to significantly increase global solar energy production. It is particularly suited for water-rich regions, unused water bodies, or areas unsuitable for land-based solar installations. With the right cabling and robust components, floating PV systems can be operated efficiently and reliably.

The use of specialized cabling solutions, such as HIKRA® SOL cables, combined with the integration of HISconnect® components, ensures stable and secure energy supply—even under the challenging conditions of water-based installations.