In the global transition to clean energy, solar energy efficiency and equipment durability are key concerns. Anodized aluminum sheets, with their unique physical and chemical properties, have become a key material for photovoltaic (PV) and concentrated solar power (CSP) systems, providing comprehensive support for stable equipment operation.

I. Core Characteristics of Anodized Aluminum Sheets: An Innate Advantage for Solar Applications

Through an electrochemical oxidation process, a dense aluminum oxide film forms on the surface of the aluminum alloy, endowing the material with three core advantages, making it suitable for harsh outdoor environments:

Extreme Weather Resistance: Resists UV rays, temperature swings from -40°C to 80°C, high humidity, and acid rain, addressing the susceptibility of ordinary aluminum alloys to oxidation and corrosion.

Excellent Thermal Management: The oxide film provides thermal insulation, while the substrate conducts heat, enabling bidirectional adjustment.

Customizable Optical Properties: By adjusting process parameters, the material can achieve either high reflection or selective absorption of sunlight, adapting to different scenarios.

II. Role in Solar Photovoltaic (PV) Systems: Protecting Module Lifespan and Power Generation Efficiency

Anodized aluminum sheet is primarily used in module frames, brackets, and inverter housings, providing both protection and efficiency enhancement:

PV module frames: High strength and corrosion resistance ensure long-term deformation and rust resistance, while lightweight design reduces installation and load-bearing costs.

PV brackets: Require no additional corrosion protection, offer a 25-30 year lifespan, and are easily workable, making them suitable for rooftop and tracking applications.

Inverter housings: The oxide film provides thermal insulation and the base material dissipates heat, ensuring stable operation from -30°C to 50°C. The oxide film's breakdown voltage exceeds 1500V, enhancing safety.

III. Role in Concentrated Solar Power (CSP) Systems: Optimizing Light Absorption and Heat Utilization Efficiency

Concentrated solar power systems require higher material resistance to high temperatures and optical properties. Specially treated anodized aluminum sheets play a key role:

Heat Absorber: Doped with elements such as nickel and cobalt, they achieve a solar absorption rate exceeding 90% and an infrared emissivity below 10%, ensuring a working temperature of 300-500°C and improving conversion efficiency.

Mirror Bracket: Long-term resistance to temperatures exceeding 150°C, resisting environmental corrosion in deserts and plateaus, and preventing bracket deviation from affecting focusing accuracy.

IV. Future Outlook: Technological Upgrades Drive Wider Applications

As the solar energy industry develops toward "high efficiency, low cost, and long life," anodized aluminum sheet technology continues to advance:

Micro-arc oxidation processes produce 50-100μm thick oxide films, suitable for next-generation molten salt CSP power plants operating at 700°C.

Nano-coating composite technology integrates "structural support and optical optimization," reducing the cost of photovoltaic modules.

A recycling rate exceeding 95%, in line with low-carbon development. Global photovoltaic installed capacity is expected to exceed 1.5TW by 2030, further increasing demand for materials.

In summary, anodized aluminum panels serve as both a protective barrier and a performance engine for solar equipment, providing technical support for the global "dual carbon" goals.