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Optimizing Agri-PV System: Systematic Methodology to Assess Key Design Parameters

Author

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  • Kedar Mehta

    (Institute of new Energy Systems, Technische Hochschule Ingolstadt, Esplanade 10, 85049 Ingolstadt, Germany)

  • Wilfried Zörner

    (Institute of new Energy Systems, Technische Hochschule Ingolstadt, Esplanade 10, 85049 Ingolstadt, Germany)

Abstract

Agrivoltaic (Agri-PV) systems face the critical challenge of balancing photovoltaic energy generation with crop productivity, yet systematic approaches to quantifying the trade-offs between these objectives remain scarce. In this study, we identify nine essential design indicators: panel tilt angle, elevation, photovoltaic coverage ratio, shading factor, land equivalent ratio, photosynthetically active radiation (PAR) utilization, crop yield stability index, water use efficiency, and return on investment. We introduce a novel dual matrix Analytic Hierarchy Process (AHP) to evaluate their relative significance. An international panel of eighteen Agri-PV experts, encompassing academia, industry, and policy, provided pairwise comparisons of these indicators under two objectives: maximizing annual energy yield and sustaining crop output. The high consistency observed in expert responses allowed for the derivation of normalized weight vectors, which form the basis of two Weighted Influence Matrices. Analysis of Total Weighted Influence scores from these matrices reveal distinct priority sets: panel tilt, coverage ratio, and elevation are most influential for energy optimization, while PAR utilization, yield stability, and elevation are prioritized for crop productivity. This methodology translates qualitative expert knowledge into quantitative, actionable guidance, clearly delineating both synergies, such as the mutual benefit of increased elevation for energy and crop outcomes, and trade-offs, exemplified by the negative impact of high photovoltaic coverage on crop yield despite gains in energy output. By offering a transparent, expert-driven decision-support tool, this framework enables practitioners to customize Agri-PV system configurations according to local climatic, agronomic, and economic contexts. Ultimately, this approach advances the optimization of the food energy nexus and supports integrated sustainability outcomes in Agri-PV deployment.

Suggested Citation

  • Kedar Mehta & Wilfried Zörner, 2025. "Optimizing Agri-PV System: Systematic Methodology to Assess Key Design Parameters," Energies, MDPI, vol. 18(14), pages 1-26, July.
    • Handle: RePEc:gam:jeners:v:18:y:2025:i:14:p:3877-:d:1706206
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