Solar Encapsulation Interlayer Film Manufacturing Plant (EVA / POE / EPE)

Capacity: ~1 GW Equivalent (8.5–10 Million m² per annum)

1. Executive Summary

This Detailed Project Report (DPR) covers the establishment of a state-of-the-art Solar Encapsulation Interlayer Film Manufacturing Plant producing EVA, POE, and EPE films used in crystalline silicon solar PV modules.

The proposed facility is designed around a GWELL/GW-type high-end extrusion line with advanced melt pumping, precision T-die, five-roll calendering, X-ray thickness measurement, and fully automated winding. The plant is sized to support ~1 GW of solar module production per annum, equivalent to 8.5–10 million m² of encapsulation film.

The project targets:

• Import substitution
• Supply to Tier-1 solar module manufacturers
• Long-term compatibility with TOPCon / HJT / N-type technologies

2. Project Objectives

• Manufacture high-quality EVA / POE / EPE solar encapsulation films
• Achieve tight thickness tolerance (±2.5%) and optical consistency
• Meet IEC / UL / TUV solar module standards
• Enable future expansion to POE-rich & co-extruded structures
• Support domestic and export markets

3. Product Description

3.1 Product Types

3.2 Key Specifications

• Width: up to 2600–3000 mm
• Thickness range: 0.4 – 1.0 mm
• Density reference: ~450 g/m² @ 0.65 mm
• Transparency: ≥91%
• Gel content (EVA): ≥80% (after curing)