PV Panel Recycling Capacity Comes Online: Silicon Purification Standards Published

Three photovoltaic panel large-scale dismantling bases in Inner Mongolia and Jiangsu provinces started trial production this week, marking the photovoltaic recycling industry entering a scaled phase.

Capacity Overview

Designed capacity of three bases:

| Base | Location | Annual Processing | Projected Output | |------|----------|------------------|------------------| | Base A | Hohhot, Inner Mongolia | 50,000 tons | 800M RMB | | Base B | Wuxi, Jiangsu | 30,000 tons | 500M RMB | | Base C | Suzhou, Jiangsu | 20,000 tons | 350M RMB |

Mainly processes silicon wafers, aluminum frames, and glass from retired PV panels.

Regenerated Silicon Purity Grading Standards

The industry alliance's simultaneously published "Regenerated Silicon Material Grading" standards classify total metal impurity content into three tiers:

Grade A (Premium)

• Total metal impurities < 1 ppm
• Can be directly used for N-type monocrystalline pulling
• Blending ratio can reach 30%

Grade B (Medium)

• Total metal impurities 1-5 ppm
• Can be used for P-type crystalline silicon
• Blending ratio 10-20%

Grade C (Basic)

• Total metal impurities 5-10 ppm
• Requires additional processing before use in cells
• Recommended for BIPV and similar applications

Market Impact

Analysts note that although recycling capacity is now operational:

• Regenerated silicon still struggles to impact primary polysilicon pricing (approximately 80,000-120,000 RMB/ton)
• Recycling cost approximately 30,000-50,000 RMB/ton, with economics to be verified
• Subsidy policy implementation affects investment return cycles

Long-term, as PV installed capacity continues growing (expected to exceed 2000GW cumulatively by 2030), retired panel recycling will become an important supplement.

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