Key Findings
During discussions at Intersolar Europe 2026, David Ward, CEO of Oxford PV, a company specializing in perovskite-silicon tandem solar cells, boldly predicted that this innovative technology would achieve ‘gigawatt-scale’ production by 2028. He underscored the potential for tandem technology to become a ‘stealth disruptor,’ delivering immense value to the solar industry without fundamentally altering existing silicon manufacturing lines. This statement clearly reflects the industry’s optimistic outlook on the role next-generation solar cells will play in achieving Europe’s energy independence.
Technical Details
Perovskite-silicon tandem solar cells are poised to break through the theoretical efficiency limits of conventional single-junction silicon solar cells. While silicon efficiently absorbs longer-wavelength light, perovskites effectively capture shorter-wavelength light. By stacking these two materials, a broader spectrum of solar energy can be converted into electricity. Ward’s characterization of the technology as a ‘stealth disruptor’ suggests its potential for relatively easy integration into existing silicon solar cell manufacturing facilities. This means high-efficiency modules can be produced by leveraging existing infrastructure, circumventing the need for expensive new capital expenditures. This approach allows for substantial increases in power generation while containing manufacturing costs. Laurent Bodin, CCO of French PV manufacturing startup HoloSolis, also noted that given the concentration of perovskite expertise in European research institutions like Oxford PV and Fraunhofer, the EU has a ‘one-off chance’ to invest in PV manufacturing based on tandem technology.
Background & Context
The European Union (EU) is accelerating the adoption of renewable energy, particularly solar photovoltaics, to strengthen energy security and achieve its 2050 carbon neutrality goals. However, the current heavy reliance on Asian manufacturers for the majority of solar panel production is perceived as a supply chain risk. Consequently, bolstering domestic manufacturing capacity within Europe has become an urgent priority. In this context, perovskite-silicon tandem technology is viewed as a strategic trump card for Europe to regain global competitiveness in PV manufacturing. The ability to utilize existing infrastructure is particularly appealing, as it significantly reduces the time and cost associated with building new manufacturing facilities, thereby contributing to a rapid increase in European production capacity.
Strategic Significance & Outlook
The Oxford PV CEO’s forecast of gigawatt-scale production indicates that perovskite-silicon tandem solar cells could become a mainstream technology in the solar PV market within the next few years. As Europe possesses leading companies and research institutions in this technological development, a concerted effort combining policy support and industrial investment could establish the region as a major hub for next-generation PV manufacturing. This would enable the EU to enhance its energy self-sufficiency and strengthen its leadership in the global clean energy technology market. The advancement of perovskite technology is expected to bring about significant transformations not only in solar power efficiency but also in manufacturing methods and supply chain structures, contributing to the establishment of a more sustainable and decentralized energy system.
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