What High-Temperature and High-Humidity PV Projects Are POE Encapsulation Film Extrusion Lines Suitable For?

1. Why POE Film Excels in Harsh Environments

POE (Polyolefin Elastomer) encapsulation film offers low water vapor transmission, high volume resistivity, strong UV and thermal aging resistance. These properties make it ideal for PV installations in hot, humid, corrosive, and high-radiation conditions, ensuring long-term module stability and reducing risks of PID, delamination, or electrical failure.

2. Ideal Application Scenarios:

1. Tropical Coastal Regions in Southeast and South Asia
   Countries like Indonesia, Thailand, and Malaysia experience high humidity (>80%) and intense heat year-round. POE films outperform EVA by resisting moisture absorption and aging.

2. Desert Regions in the Middle East and Africa
   Places such as the UAE, Saudi Arabia, and Egypt face extreme temperatures (often >45°C), wide temperature fluctuations, and strong UV radiation. POE’s thermal and UV stability make it ideal here.

3. Tropical Rainforest and Highland Areas in South America
   Regions like northern Brazil or the Andes in Peru combine heat, humidity, and radiation. POE films offer excellent moisture resistance and long-term adhesion.

4. Marine and Salt-Corrosion Zones (Floating or Coastal PV)
   Floating PV stations or beachside projects benefit from POE’s superior sealing and salt corrosion resistance, making it a better option than conventional EVA.

3. Key Extrusion Line Requirements for POE Films

An extrusion line built for POE needs:

• Enhanced temperature control precision (to match POE’s narrow process window)

• High shear and mixing performance

• Accurate in-line thickness measurement and optimized cooling

• Multilayer co-extrusion capability for POE/POE or POE-functional film stacks

Conclusion:

POE encapsulation film extrusion lines are highly suitable for PV projects in hot, humid, UV-intensive, and corrosive environments. They’re especially ideal for double-glass modules and premium outdoor solar systems, helping extend module lifespan and reliability.