Objective
Perovskite/silicon tandems could become the next terawatt-scale photovoltaics technology and contribute to the energy transition, provided they reach service lifetimes of 30 years, which is not attained yet. Commercialisation is further limited by the absence of perovskite-specific reliability standards, unclear energy yield and non-mature mass-manufacturing equipment and materials for key processes.
JALAPENO will address these challenges and demonstrate industrial tandem cells with median total-area efficiencies above 31% in pilot-line production. These will be integrated in commercial-size modules with aperture-area efficiencies above 29%. Through innovations in processes and materials, tandems will be engineered to remain stable under the most demanding reliability tests, surpassing current standards. New test protocols tailored to perovskite/Si tandems will be developed within the project and proposed as the foundation for future standards. In addition, stable outdoor operation will be validated, advancing the technology’s readiness toward market entry.
Equipment and processes for scalable perovskite deposition, including thermal evaporation, low-damage sputtering, and silver free interconnection, will be developed and integrated at a fully operational megawatt-scale pilot line. Lead-scavenging strategies and hydrometallurgical metal recovery processes will further ensure safe and sustainable end-of-life management of tandem modules.
JALAPENO builds on Qcells’ EU co-funded megawatt-scale pilot line, which has already demonstrated industrial production of tandem cells with record efficiencies and tandem modules showing promising, though not yet sufficient, reliability. Leading research institutes, specialised material suppliers, equipment manufacturers, and accredited testing bodies will work together to overcome the remaining challenges to deliver bankable high-efficiency tandem modules that meet the reliability requirements for industrial deployment
Fields of science (EuroSciVoc)
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Keywords
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Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Programme(s)
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
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HORIZON.2.5 - Climate, Energy and Mobility
MAIN PROGRAMME
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Topic(s)
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Funding Scheme
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
HORIZON-IA - HORIZON Innovation Actions
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Call for proposal
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Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
(opens in new window) HORIZON-CL5-2026-02
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Net EU financial contribution. The sum of money that the participant receives, deducted by the EU contribution to its linked third party. It considers the distribution of the EU financial contribution between direct beneficiaries of the project and other types of participants, like third-party participants.
14109 Berlin
Germany
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Participants (15)
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06766 Bitterfeld Wolfen Ot Thalheim
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20550 Aretxabaleta
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The organization defined itself as SME (small and medium-sized enterprise) at the time the Grant Agreement was signed.
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01328 Dresden
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2491 BK 's-Gravenhage (Den Haag)
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Legal entity other than a subcontractor which is affiliated or legally linked to a participant. The entity carries out work under the conditions laid down in the Grant Agreement, supplies goods or provides services for the action, but did not sign the Grant Agreement. A third party abides by the rules applicable to its related participant under the Grant Agreement with regard to eligibility of costs and control of expenditure.
Net EU financial contribution. The sum of money that the participant receives, deducted by the EU contribution to its linked third party. It considers the distribution of the EU financial contribution between direct beneficiaries of the project and other types of participants, like third-party participants.
04179 Leipzig
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126 30 HÄGERSTEN
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The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.
Net EU financial contribution. The sum of money that the participant receives, deducted by the EU contribution to its linked third party. It considers the distribution of the EU financial contribution between direct beneficiaries of the project and other types of participants, like third-party participants.
2800 Mechelen
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The organization defined itself as SME (small and medium-sized enterprise) at the time the Grant Agreement was signed.
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.
Net EU financial contribution. The sum of money that the participant receives, deducted by the EU contribution to its linked third party. It considers the distribution of the EU financial contribution between direct beneficiaries of the project and other types of participants, like third-party participants.
8008 Zurich
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The organization defined itself as SME (small and medium-sized enterprise) at the time the Grant Agreement was signed.
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.
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7500 Tournai
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60550 Verneuil En Halatte
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8700 LEOBEN
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2000 Neuchatel
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80686 Munchen
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1000 Ljubljana
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LT-44029 Kaunas
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Partners (1)
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20005 MILANO
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