#China #Risen Energy #Ningbo #HJT Technology #Low-Silver

Risen Energy’s Low-Silver Strategy for HJT Solar Technology

In recent discussions within the photovoltaic sector, the focus has sharpened on reducing costs associated with silver paste and advancing innovative metallization materials. Risen Energy, a pioneer in this field, is re-evaluating its strategic roadmap presented in the white paper titled "White Paper of HJT Hyper-ion Products Development and Application of Low-Silver Metallization Paste". This reflective analysis aims to provide peers in the industry practical insights drawn from concrete experiences.

Systematic Anticipation and Planning: Beyond Simple Substitution

Amidst the limitations of silver reserves and its price volatility, Risen Energy identified the urgent need to embrace low-cost metallic alternatives for sustainable growth. This shift mirrors historical transitions in integrated circuit production, where copper replaced gold in interconnections.

Risen Energy's approach transcends mere conceptual substitutions. The company systematically analyzed candidate metals, including copper, aluminum, zinc, and nickel, against three key criteria: electrical conductivity, global reserves, and market stability. Copper stood out due to its extremely high conductivity (5.96×10^7 S/m), abundant reserves, and cost-effectiveness.

The company has focused on low-silver paste technology, where a thin layer of silver encapsulates less expensive metallic cores. This choice was made not just for its effectiveness but also for its compatibility with existing production lines and potential for rapid scalability.

Rigorous validation ensured reliability, demonstrating that modules utilizing low-silver pastes maintained excellent degradation rates even when subjected to intense humidity and thermal cycling tests. Interestingly, these modules often outperformed those using pure silver pastes, with comparable electricity production capabilities.

From Innovation to Industrialization: Leadership in Mass Production

Risen Energy’s HJT products have achieved stable, large-scale mass production for several years. Currently, the use of pure silver in Risen Energy's HJT cells has been reduced to an impressive 3.9 milligrams per watt (mg/W), positioning the company as a global leader in this metric.

Reflections and Future Outlook: Value-Driven Progress

The review highlights three foundational principles underpinning Risen Energy’s strategy:

• - Intrinsic Synergy Between HJT and Low-Silver Materials: The low-temperature manufacturing, bifacial characteristics, and superior passivation of HJT create a strong platform for safe and effective metallization innovation.
• - Cost Reduction as a Value Multiplier: By merging material optimization with process excellence, Risen Energy ensures lower total cost of ownership and improved return on investment without forfeiting reliability or energy production.
• - Material Innovation as a Catalyst for the Industry: The push to decrease silver usage goes far beyond cost savings; it's a paradigm shift in photovoltaic technology and sustainable practices.

In closing, Risen Energy extends its gratitude to clients and partners for their faith in its HJT technology. The company remains committed to its foundational goal of "cost reduction and efficiency enhancement," continuing to promote the industrialization of HJT technology and contributing significantly to the global energy transition.