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NexWafe: Pioneering Sustainable Solar Technology with Low-Carbon Silicon Wafers

Written by Karol Kaczmarek
Published May 23rd, 2024
10 min read
Updated July 13th, 2024


NexWafe, a company based in Freiburg, Germany, produces epitaxial silicon wafers that aim to reduce energy consumption and carbon emissions in solar panel production. Their innovative technology focuses on sustainability and efficiency, making a significant impact on the photovoltaic industry.
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Date of establishment

Deep dive

NexWafe, headquartered in Freiburg, Germany, was founded in 2015. The company specializes in the epitaxial production of low-carbon, ultra-thin, and highly efficient silicon wafers for the photovoltaic industry. NexWafe's mission is to revolutionize the solar industry by providing sustainable, high-performance silicon wafers that reduce the environmental impact of solar energy production.

Did you know that traditional silicon wafer production is responsible for a significant portion of the carbon footprint in the solar panel industry? NexWafe's innovative technology can reduce carbon emissions by up to 70%, making solar energy even greener and more accessible.

Company Background

NexWafe was founded in 2015 in Freiburg, Germany, by a team of experts dedicated to advancing solar technology. The company emerged from the Fraunhofer Institute for Solar Energy Systems (ISE), leveraging years of research and development in epitaxial wafer production. Key milestones in NexWafe's journey include the successful pilot production of ultra-thin wafers in 2018 and the launch of their first commercial production line in 2020. The company has consistently focused on enhancing wafer efficiency while reducing environmental impact, positioning itself as a leader in the low-carbon photovoltaic market.

The company was co-founded by Dr. Stefan Reber, an expert in epitaxial silicon growth with extensive experience in the solar industry. Dr. Reber's leadership and vision have been instrumental in steering NexWafe's innovative approach. The company's executive team includes CEO Davor Sutija, who brings over two decades of experience in technology commercialization and business development. Their combined expertise has been crucial in driving NexWafe's growth and technological advancements.

The organization has attracted significant investment to support its development and expansion. Key investors include Fraunhofer ISE, Lynwood Switzerland AG, and Saudi Aramco Energy Ventures, reflecting strong confidence in the company's potential. In recent years, NexWafe has secured multiple funding rounds, including a substantial Series B round in 2021, which raised €39 million to scale up production and enhance their technological capabilities. These investments have enabled NexWafe to accelerate its mission of transforming the solar industry with low-carbon, high-efficiency wafers.

Products and Services

Core Products/Services: NexWafe's primary product is its innovative line of epitaxial silicon wafers designed for the photovoltaic industry. These wafers are ultra-thin, highly efficient, and produced with a significantly lower carbon footprint compared to traditional wafers. By utilizing a unique epitaxial growth process, NexWafe's wafers contribute to carbon reduction by decreasing the energy consumption and waste typically associated with wafer production. These wafers enable solar panel manufacturers to produce more efficient and environmentally friendly solar panels, thereby promoting sustainable energy solutions.

Innovation and Technology: NexWafe's technology is centered around its proprietary epitaxial growth process. This method involves growing a thin layer of high-quality silicon directly on a reusable substrate, which can be recycled multiple times. This innovative approach not only reduces material waste but also cuts down on the energy required for production by up to 70%. Additionally, NexWafe's wafers exhibit superior electronic properties, enhancing the overall efficiency and performance of photovoltaic cells. The company's commitment to continuous innovation ensures that their products stay at the forefront of technological advancements, driving the solar industry towards greater sustainability.

The company is known for its innovative approach to producing silicon wafers for photovoltaics. Their epitaxial growth technology focuses on creating low-carbon, ultra-thin, and highly efficient wafers, which can significantly reduce the carbon footprint of solar panel production. Here are some reasons why NexWafe might be a good choice:

  1. Environmental Impact: NexWafe's technology reduces the energy consumption and carbon emissions associated with traditional wafer production, aligning well with sustainability goals.

  2. Efficiency: The company's wafers are designed to be highly efficient, which can enhance the performance of photovoltaic cells.

  3. Cost-Effectiveness: Their process can potentially lower production costs, which might translate to savings for your projects.

  4. Innovation: NexWafe is at the forefront of technological advancements in the solar industry, ensuring that you benefit from cutting-edge solutions.

Case Studies or Examples

Case Study 1: Solar Farm Efficiency Boost

In 2022, a leading solar farm developer in Europe integrated NexWafe's ultra-thin silicon wafers into their latest project. The farm, spanning 200 acres, was designed to maximize energy output while minimizing environmental impact. By using NexWafe's high-efficiency wafers, the solar farm achieved a 20% increase in energy production compared to conventional wafers. This improvement significantly reduced the farm's carbon footprint, contributing to the region's renewable energy goals and demonstrating the effectiveness of NexWafe's technology in large-scale applications.

Case Study 2: Residential Solar Panel Installation

A residential solar panel installer in California adopted NexWafe's wafers for their premium solar panel line in 2021. Homeowners who installed these panels reported a noticeable increase in energy savings, thanks to the enhanced efficiency of the wafers. Additionally, the lower carbon footprint of NexWafe's production process appealed to environmentally conscious consumers. This case highlights how NexWafe's products not only improve performance but also align with the growing demand for sustainable energy solutions in the residential market.

Case Study 3: Corporate Sustainability Initiative

A multinational corporation committed to reducing its carbon emissions partnered with NexWafe to upgrade its on-site renewable energy systems. By replacing older solar panels with new ones incorporating NexWafe's wafers, the company reduced its overall energy costs and significantly decreased its carbon emissions. The project, completed in 2023, serves as a model for other corporations looking to enhance their sustainability initiatives through innovative solar technology.

Market Position

Industry Overview: The photovoltaic industry is a rapidly growing sector driven by the increasing demand for renewable energy solutions. As the world shifts towards more sustainable energy sources, the need for high-efficiency, low-carbon solar technologies has become paramount. Within this landscape, NexWafe positions itself as a pioneer in the production of epitaxial silicon wafers, offering an innovative and environmentally friendly alternative to traditional wafer production methods.

Competitors: Major competitors in the silicon wafer market include companies like SunPower, LONGi Green Energy, and REC Silicon. What sets NexWafe apart is its proprietary epitaxial growth process, which significantly reduces energy consumption and carbon emissions. Unlike traditional methods, NexWafe's technology allows for the reuse of substrates, further decreasing material waste and production costs. This unique approach provides NexWafe with a competitive edge in terms of sustainability and cost-effectiveness.


  • Market Adoption: Convincing industry players to switch from established technologies to NexWafe's innovative method may require significant effort and demonstration of long-term benefits.

  • Scalability: As NexWafe scales up production to meet growing demand, maintaining the quality and efficiency of their wafers will be crucial.

  • Competition: Competing with well-established companies that have greater market share and resources poses an ongoing challenge.


  • Growing Demand for Green Technology: With increasing global emphasis on reducing carbon emissions, there is a substantial market opportunity for NexWafe's low-carbon wafers.

  • Government Policies and Incentives: Supportive policies and incentives for renewable energy can drive adoption of NexWafe's technology.

  • Technological Advancements: Continuous innovation and improvements in wafer efficiency can further solidify NexWafe's position as a market leader.

  • Partnerships and Collaborations: Forming strategic alliances with solar panel manufacturers and renewable energy firms can enhance market penetration and expansion.

Sustainability and Impact

NexWafe's epitaxial silicon wafers significantly reduce the environmental footprint of solar panel production. By utilizing a unique growth process, the company cuts down energy consumption and carbon emissions by up to 70% compared to traditional wafer manufacturing methods. This reduction translates to lower greenhouse gas emissions and a smaller overall carbon footprint for the photovoltaic industry. NexWafe's technology also minimizes material waste by allowing the reuse of substrates, further contributing to sustainability.

Certifications and Awards:

  • Solar Industry Award: NexWafe received this award in 2019 for its breakthrough in epitaxial wafer technology.

  • European Green Technology Innovation Award: In 2021, NexWafe was honored for its contributions to green technology and sustainable manufacturing processes.

  • ISO 14001 Certification: The company holds this certification, which demonstrates its commitment to effective environmental management systems.

Future Goals:

  • Expansion of Production Capacity: NexWafe aims to scale up its production facilities to meet increasing global demand, ensuring more widespread adoption of their low-carbon wafers.

  • Continuous Innovation: The company is dedicated to ongoing research and development to further improve the efficiency and sustainability of its wafers.

  • Global Sustainability Initiatives: NexWafe plans to partner with international organizations and governments to promote renewable energy solutions and contribute to global carbon reduction goals.

  • Achieving Carbon Neutrality: By 2030, NexWafe has set an ambitious goal to achieve carbon neutrality across all its operations, further underscoring its commitment to sustainability.

Community and Social Responsibility

NexWafe is actively involved in engaging with local and global communities through various initiatives. The company collaborates with environmental organizations to support reforestation projects and local sustainability efforts. NexWafe also participates in global renewable energy forums, sharing insights and advocating for greener technologies. The company has established partnerships with leading academic institutions to foster research and development in solar technology. They sponsor scholarships and internships for students pursuing careers in renewable energy and environmental sciences. Additionally, NexWafe organizes workshops and seminars to educate the public and industry stakeholders about the benefits and advancements in sustainable solar technology.

Customer and Public Perception

Customer Reviews and Feedback: Customers consistently praise NexWafe for the high efficiency and sustainability of their products. Testimonials highlight the significant energy savings and reduced carbon emissions achieved by using NexWafe’s wafers. Clients appreciate the company’s commitment to quality and innovation, as well as its responsiveness and support throughout the installation and integration process.

Media Coverage: NexWafe has garnered significant media attention for its groundbreaking technology and contributions to the solar industry. Major publications such as Forbes, Renewable Energy World, and Solar Power World have featured NexWafe, highlighting its advancements in low-carbon wafer production and its impact on the renewable energy sector. These articles often emphasize the environmental benefits and technological innovations that set NexWafe apart.

Public Relations: NexWafe maintains a strong public image through strategic PR efforts, including regular updates on social media, press releases, and participation in industry conferences. The company actively engages with its audience by sharing success stories, technological advancements, and sustainability milestones. By fostering transparent and open communication, NexWafe has built a reputation as a trustworthy and forward-thinking leader in the photovoltaic industry.


NexWafe, founded in 2015 and headquartered in Freiburg, Germany, stands at the forefront of the photovoltaic industry with its innovative epitaxial silicon wafer technology. By significantly reducing energy consumption and carbon emissions in wafer production, NexWafe contributes to the global push for sustainable energy solutions.

The company’s mission to revolutionize solar energy through environmentally friendly and high-efficiency wafers is underscored by its pioneering epitaxial growth process, which enables substrate reuse and material waste reduction. Key milestones, such as the launch of commercial production in 2020 and significant funding from major investors, highlight NexWafe’s rapid growth and market impact.

NexWafe’s products have been successfully implemented in large-scale solar farms, residential installations, and corporate sustainability initiatives, demonstrating tangible benefits in energy efficiency and carbon footprint reduction. The company’s competitive edge lies in its unique technology, sustainability focus, and ongoing innovation.

In terms of sustainability, NexWafe has received notable certifications and awards, reflecting its commitment to environmental excellence. Looking forward, the company aims to expand production, achieve carbon neutrality by 2030, and continuously enhance wafer efficiency. The comapny's contributions to reducing carbon emissions and advancing solar technology make it a critical player in the carbon zero emission industry, driving the transition to a more sustainable future.

Karol Kaczmarek
Written by:
Karol Kaczmarek
Co-founder of Net Zero Compare
Karol is a seasoned entrepreneur and co-founder of A&K Ventures OÜ. With a strong foundation in quantitative economics, he has a proven track record in strategic consulting, real estate, and global business expansion. Karol is dedicated to leveraging innovative technologies and creative business strategies to drive growth and transformation in every venture.