Future Trends for Galvanized Prestressed Steel Strand (Flexible Photovoltaic Mounting Systems)

As flexible photovoltaic (PV) mounting systems rapidly evolve toward long spans, high durability, all-scenario applicability, and intelligent operation, technological upgrades and product innovation have become inevitable trends for galvanized prestressed steel strand—the core load-bearing component. Only by proactively investing in technological innovation—and leveraging mature manufacturing processes, rigorous quality control systems, and scenario-specific customization capabilities—can enterprises precisely meet the construction requirements of diverse flexible PV projects. Based on industry technological evolution and market dynamics, the future development of this product is characterized by the following trends:

I. Iterative Upgrading of Anti-Corrosion Systems

The industry has moved beyond the reliance on a single hot-dip galvanizing process and entered a new phase of refined anti-corrosion solutions tailored to specific application scenarios and performance grades; composite coatings offering high corrosion resistance and extended service life are increasingly becoming the mainstream choice.

In low-corrosion environments—such as inland mountainous areas and standard agrivoltaic installations—standard hot-dip galvanized steel strands (manufactured to low-hydrogen-embrittlement standards) offer excellent cost-effectiveness. They meet the 25-year design life requirement for photovoltaic power plants and serve as the foundational product.

However, traditional galvanized products are prone to rust and lack sufficient suitability for highly corrosive environments characterized by high humidity and salt spray, such as "fishery-solar" hybrid sites, coastal mudflats, and sewage treatment ponds. In contrast, steel strands featuring zinc-aluminum-rare earth alloy coatings offer corrosion resistance three to five times greater than that of standard galvanized products, and they are progressively replacing the latter in the market.

Meanwhile, continuous breakthroughs in high-end anti-corrosion technology—such as a fully enclosed protection system featuring epoxy-filled galvanized steel with a PE sheath—have extended the design service life of the cable materials to over 30 years, making them suitable for high-end offshore photovoltaic projects. The implementation of new technologies, including zinc-aluminum-magnesium composite coatings and self-cleaning coatings, further enhances the products' outdoor weather resistance.

We have established a comprehensive portfolio of anti-corrosion cable materials and can customize protection schemes based on specific corrosive environments and operating conditions. This enables us to effectively address issues such as structural corrosion and service life degradation, providing highly compatible anti-corrosion solutions for photovoltaic projects.

II. Upgrading to High-Strength, Lightweight Solutions

To meet the construction requirements of photovoltaic (PV) power plants—specifically the need for long spans, high vertical clearance, and resistance to wind-induced vibration—steel strands are evolving toward higher strength, lighter weight, and greater stability.

Industry products are rapidly upgrading from the traditional 1860 MPa standard to ultra-high-strength systems of 1900 MPa and 1960 MPa; meanwhile, new composite high-strength materials in the 2000 MPa class are under continuous development, constantly pushing the boundaries of performance.

Ultra-high-strength steel strands offer significant advantages in projects requiring ultra-long spans of 50–60 meters—such as large-scale renewable energy bases in desert and Gobi regions or high-standard agrivoltaic installations. Under equivalent load conditions, they enable a reduction in the quantity of cable material and structural dead weight, significantly cutting down on support structure materials and lowering project investment costs by 10%–18%.

Our company has achieved mass production of the full range of 1860 MPa specifications and scaled-up production of 1960 MPa ultra-high-strength products; our products outperform industry standards, helping to enhance quality, reduce costs, and improve construction efficiency for photovoltaic projects.

III. Intelligent Evolution of Structural Systems

Steel strands have evolved beyond their traditional load-bearing role into core structural units that integrate load-bearing, wind resistance, structural shaping, and power transmission capabilities, thereby meeting the needs for the intelligent upgrading of flexible mounting systems. 

As intelligent flexible tracking mounts gain rapid adoption, prestressed steel strands—capable of serving both load-bearing and transmission functions—replace traditional heavy main beams; this reduces steel consumption while boosting module power generation efficiency by 8%–15%.

Furthermore, hybrid rigid-flexible self-balancing cable trusses have become the mainstream solution; by utilizing steel strands of varying specifications to construct a bidirectional, wind-resistant stabilizing cable network, the system effectively withstands challenges such as severe typhoons and gusty winds.

Leveraging BIM digital technology and intelligent fiber-optic monitoring, the system enables real-time tracking of steel strand conditions. When combined with precise tensioning techniques, this ensures controllable cable deflection and maintains the flatness and stability of the photovoltaic array. 

With years of deep expertise in the cable network structure sector and a thorough understanding of structural mechanics, our company offers customized matching of cable specifications and tensioning parameters, ensuring full compatibility with a complete range of flexible mounting systems, including both fixed and intelligent tracking configurations.

IV. Emergence of a Customized Industrial Landscape

The large-scale development of new energy is driving the continuous expansion of application scenarios for flexible photovoltaic (PV) mounting systems, with scenario-specific customization becoming a core industry trend.

Traditional applications—such as installations on mountainous terrain and agrivoltaic systems—are undergoing upgrades; the widespread adoption of high-clearance flexible mounting systems continues to generate steady demand for standard high-strength steel strands.

Meanwhile, challenging sites—including former coal mining areas, deserts, the Gobi, and coastal waters—have emerged as new frontiers for PV development. These complex environments demand superior corrosion resistance, tensile strength, and terrain adaptability from cable materials, making specialized, customized products essential.

As industry standards mature and zinc recycling technologies are implemented, the comprehensive cost of materials continues to decline. This effectively facilitates the large-scale deployment of long-span and composite PV installations, accelerating the industry's standardization and high-quality development.

Leveraging a comprehensive product portfolio, mature customization services, and robust technical support capabilities, we provide a one-stop solution for photovoltaic material needs across diverse scenarios—including standard power plants, highly corrosive environments, and ultra-long-span installations. We deliver high-quality products and integrated solutions to ensure efficient project implementation and long-term operational reliability.

Furthermore, we specialize in the field of prestressed steel materials, offering a full range of high-standard galvanized steel strands and providing specialized, customized solutions tailored to various photovoltaic applications. Please contact us via the phone number or email address listed on our official website for product procurement or custom requirements.