Key Findings
Suzhou Maxwell Technologies unveiled three revolutionary manufacturing solutions for perovskite solar cell production at SNEC and Intersolar Europe 2026. These include a perovskite-heterojunction (HJT) tandem production line, a gigawatt (GW)-scale HJT production line, and an indium-free copper metallization process. Notably, the perovskite-HJT tandem solution supports 210mm large-area formats and has demonstrated cell conversion efficiencies exceeding 31% on the company’s platform. Furthermore, the first commercial production line leveraging HJT-perovskite technology commenced operation at a customer facility in the last week of June 2026.
Technical Details
Maxwell Technologies’ perovskite-HJT tandem production line is specifically designed for manufacturing next-generation solar cells. Heterojunction (HJT) technology is renowned for its high conversion efficiency and excellent temperature coefficient. By integrating perovskites with HJT, the system can capture a wider portion of the solar spectrum, significantly surpassing the theoretical efficiency limits of single-junction solar cells. The company’s solution supports large 210mm wafer formats, which directly translates to improved cost-efficiency and throughput in large-scale production. The production line can be flexibly configured from a 20 MW pilot line to a future-proof 600 MW commercial production line, tailored to customer needs. Cell conversion efficiencies exceeding 31% are comparable to leading laboratory records, showcasing Maxwell’s robust technological capability to achieve high efficiency in a mass production environment. Additionally, the indium-free copper metallization process contributes to reduced manufacturing costs and enhanced sustainability by eliminating the use of the rare metal indium.
Background & Context
The solar photovoltaic industry faces the dual challenge of simultaneously improving efficiency and reducing costs. Perovskite-HJT tandem technology is considered one of the most promising solutions to this challenge, attracting major solar cell manufacturers worldwide into a fierce development race. As a leading supplier of solar cell manufacturing equipment, Maxwell Technologies is contributing to the industry’s advancement by providing production solutions that accelerate the practical implementation of this technology. The commencement of commercial production lines, in particular, signifies a shift from mere research stages to actual market deployment, creating a significant impact across the industry.
Strategic Significance & Outlook
The availability of Maxwell Technologies’ perovskite-HJT tandem production solutions and the operational status of commercial production lines will significantly accelerate the market introduction of next-generation solar cells. The ability to mass-produce high-efficiency cells exceeding 31% will lead to further reductions in the Levelized Cost of Electricity (LCOE), making solar power even more competitive. This technology is expected to see widespread adoption in high-efficiency applications, including residential, commercial, large-scale solar farms, and specialized uses. The adoption of an indium-free process mitigates material sourcing risks and contributes to supply chain stability. The market is keenly observing how this high-efficiency technology is commercialized and what market share it ultimately captures, making Maxwell Technologies’ trajectory a crucial indicator for the future direction of the solar PV industry.
Source: https://taiyangnews.info/technology/maxwell-tandem-hjt-manufacturing-2026-snec-intersolar
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