PV + Desertification Control: Why Composite Frames Excel in Extreme Environments
China is pioneering a "PV + desertification control" model, exemplified by the world’s largest single PV power station on the southern edge of the Gurbantunggut Desert. Covering 200,000 mu (over 18,000 standard football fields), it generates clean energy while reducing wind speed by 30%-50% to fix sand. With a supporting large-scale energy storage station to be put into operation soon, deserts are being turned into green energy treasures.
However, PV stations in deserts face extreme challenges that test traditional metal frames: drastic diurnal temperature differences (up to 70℃), wind-sand erosion, saline-alkali corrosion, intense UV radiation, and high remote maintenance costs. Composite frames have emerged as the ideal solution, with core advantages as follows:
Wind-Sand & Thermal Stress Resistance: Made of resin and glass fiber, it has a tensile strength over 900MPa (5x that of ordinary aluminum alloy) and a thermal expansion coefficient matching PV glass, avoiding deformation, glass cracking and seal failure.
Inherent Corrosion & UV Resistance: The polyurethane resin matrix forms a dense protective layer, resisting saline-alkali corrosion and UV aging, and passing CPVT desert dry-hot environment tests.
High Insulation & Durability: As a natural insulator, it requires no grounding, reducing safety hazards. Its durability cuts high remote maintenance costs.
Composite frame production consumes far less energy than electrolytic aluminum, with full-life-cycle carbon emissions only about 15% of aluminum alloy frames—perfectly matching PV eco-friendly attributes.
As the "PV + ecological restoration" model expands in Western China, composite frames are set to become a key support for desert PV projects, offering unmatched advantages in extreme environments.
