As a leading exporter of mirror aluminum sheets, HC Aluminum focuses on the core pain points of the solar thermal (CSP) industry, launching mirror finish aluminum sheets specifically for parabolic solar reflectors. With stable performance, precise adaptation, and large-scale delivery capabilities, these aluminum sheets have become the preferred reflective material for global CSP power plants and collector systems.
Parabolic reflectors are the "energy catchers" of CSP systems, and their efficiency directly determines the collector temperature and power generation revenue. Industry consensus shows that a 1% increase in reflectivity can improve the photothermal conversion efficiency by 0.8%–1.2%; and every 5-year extension of outdoor durability can reduce the total lifecycle cost by more than 15%. Based on years of export and project experience, HC Aluminum anchors performance of mirror aluminum sheet to three core indicators: high reflectivity, high formability, and high weather resistance, precisely matching mainstream applications such as parabolic troughs, CPC composite collectors, and tower heliostats.
Core performance of mirror aluminum sheets for solar parabolic reflector cover from optical precision to industrial adaptability:
- Ultra-high mirror reflectivity
Utilizing high-precision continuous rolling and electrochemical polishing processes, the solar spectral reflectivity consistently reaches 92%–95%, with some ultra-mirror models achieving 95%–98%. This allows for precise focusing of parallel sunlight onto the heat absorber, achieving medium-to-high temperature heat collection from 100–600℃, significantly improving the daily power generation and heat output of power plants.
- Excellent bending formability
The mirror aluminum sheets possesses excellent ductility and can be cold-bent into standard parabolic and micro-arc surfaces. Bending 90° yields no cracks and the reflective layer does not peel off, solving the problems of traditional glass mirrors being fragile, difficult to form, and having high installation losses. It is suitable for automated production line batch stamping and on-site assembly.
- All-weather protection
The surface is coated with a dense anodized layer and a fluorocarbon protective coating, providing resistance to UV rays, salt spray, and wind and sand erosion. Even in harsh environments such as deserts, coastal areas, and high-altitude frigid zones, it remains unoxidized, delaminated, and yellowed for over 10 years, maintaining stable reflectivity and reducing maintenance frequency.
- Lightweight and cost-effective
For the same reflective area, it is 40%–60% lighter than glass mirrors, significantly reducing the load and cost of support structures and tracking systems, while improving transportation and installation efficiency. This makes it more suitable for large-scale deployment in solar thermal power plants.
Why mirrored aluminum sheets are the optimal solution for solar parabolic reflectors?
The solar thermal industry is currently transitioning from demonstration projects to large-scale commercial applications. Cost control, lifespan matching, and ease of maintenance have become key factors in material selection. Glass mirrors have high reflectivity but are fragile and have high transportation and installation costs; stainless steel has low reflectivity and is difficult to mold; while mirror aluminum sheets achieve the best balance between reflectivity, processability, durability, and total cost, making them the preferred material for mainstream parabolic reflectors worldwide.
Feedback from export markets indicates that solar thermal projects in the Middle East, Europe, and Southeast Asia prefer mirror aluminum sheet solutions with customizable thickness, width, and surface precision. HC Aluminum offers a full range of thicknesses from 0.3mm to 2.0mm, supporting customized processing such as leveling, slitting, lamination, and precision cutting, with strict surface defect control of ≤0.01mm²/㎡, meeting the stringent requirements of international power plants for optical consistency.
Application scenarios of mirror aluminum sheets for solar parabolic reflector:
Parabolic trough solar thermal power plants (CSP): Large-scale array reflectors, steadily improving heat collection efficiency;
Collateral parabolic collectors (CPC): Solar air conditioning, industrial boilers, heating systems;
Tower heliostats, CPV concentrating photovoltaics: High-precision reflective surfaces, improving light energy utilization.
As a flagship export product of HC Aluminum, mirror aluminum sheets for solar parabolic reflector have been exported to over 30 countries and regions worldwide, passing multiple international quality certifications and operating stably in several megawatt-level solar thermal projects. We are committed to in-depth technological development in manufacturing to meet the high-efficiency demands of the global new energy market. We use every high-standard mirror aluminum sheet to provide our customers with durable, reliable, and efficient reflective protection for their solar thermal systems.