#China #Risen Energy #Ningbo #HJT Technology #Silver Reduction

A New Approach to Silver Usage in Photovoltaic Technology

In the ever-evolving landscape of photovoltaic technology, Risen Energy has identified a critical path forward through the innovative reduction of silver usage in its Heterojunction Technology (HJT) products. This transformational strategy arises amidst rising concerns regarding silver’s volatile costs and limited availability, prompting the company to explore viable alternatives that ensure sustainable development within the industry.

Understanding the Need for Change

Historically, the photovoltaics sector has relied heavily on silver paste due to its excellent conductivity. However, with the increasing demand for solar energy and the associated strains on silver supply chains, Risen Energy recognized the necessity of adapting its materials procurement processes. Drawing lessons from past technological transitions, such as the switch from gold to copper in semiconductor applications, Risen Energy has embraced a comprehensive approach towards material selection.

The company has conducted extensive assessments of various metals, including copper, aluminum, zinc, and nickel, weighing their electrical conductivity, global resource availability, and market stability. Among these, copper emerged as the most promising candidate due to its superior conductivity (5.96 x 10⁷ S/m), abundant resources, and cost-effectiveness.

Innovative Technological Pathways

In its pursuit of lower silver content, Risen Energy has prioritized the formulation of a low-silver metallization paste that utilizes a silver coating around a core comprised of less expensive metal. This innovative approach is compatible with current production lines and enables rapid scalability—a critical factor for extensive manufacturing environments.

Research documented in Risen Energy’s technical white paper demonstrates that modules produced with low-silver pastes perform exceptionally well, displaying minimal degradation rates during high humidity and thermal cycling tests. In fact, some results indicate that these low-silver modules outperform traditional silver-based modules while maintaining comparable energy output levels, marking a significant advancement in HJT technology.

From Innovation to Industrial Scale

For several years now, Risen Energy has achieved steady production of HJT products utilizing low-silver paste across its manufacturing lines. Presently, the company has successfully reduced pure silver consumption in its HJT cells to an impressive 3.9 milligrams per watt (mg/W), setting a benchmark within the global market.

Key to this success has been the alignment of the company’s strategic objectives with broader market trends and demands. The fusion of HJT technology with low-silver materials has led to new efficiencies, enabling Risen Energy to offer competitive pricing without compromising reliability or energy efficiency.

Conclusion and Future Outlook

The retrospective analysis of Risen Energy’s strategies emphasizes three core principles that underpin its approach: the natural synergy between HJT technology and low-silver materials, the low-temperature manufacturing processes that enhance material efficacy, and the dual-side energy harvesting capabilities of HJT cells. These elements create a robust platform for further innovations in metallization techniques.

By strategically optimizing material use while excelling in manufacturing processes, Risen Energy aims to deliver not only lower electricity costs but also a higher return on investment, thereby driving value without sacrificing performance. Through continued advancements in material sciences and a commitment to sustainable practices, Risen Energy continues to lead the charge in transforming the photovoltaic landscape, reinforcing its mission of cost reduction and efficiency enhancement.

As the company looks to the future, Risen Energy is poised to make significant contributions towards the global energy transition, reaffirming its commitment to reduce costs and promote efficiency in HJT technology. With unwavering support from clients and partners, Risen Energy aims to cultivate a more sustainable solar energy future.