Rethinking agrivoltaic incentive programs: A science-based approach to encourage practical design solutions

Henry J. Williams, Yipu Wang, Bo Yuan, Haomiao Wang and K. Max Zhang

Applied Energy, 2025, vol. 377, issue PA, No S0306261924016556

Abstract: Agrivoltaic systems are promising solutions to address global food and energy challenges by combining agriculture and solar photovoltaics. However, the lack of appropriate regulations to define and guide their implementation constrains the growth of agrivoltaic systems in the U.S. This study uses a shading and radiation tool to evaluate an existing agrivoltaic incentive program that defines agrivoltaic designs based on shading reduction limits and panel height requirements. Our analysis indicates that structuring policy requirements around shading, and not light availability, may lead to an underestimation of crop suitability by neglecting diffuse radiation. Furthermore, we show that agrivoltaic systems can avoid increasing panel height if policy acknowledges use-case scenarios where farming only occurs between rows. In light of these insights, this study proposes two key policy recommendations: (1) benchmark crop suitability based on daily light integral (DLI) requirements for a shade-intolerant crop selected to represent a prevalent crop in the region, and (2) include an incentive scenario where agriculture is only required between rows. These two recommendations can potentially incentivize designs that are practical and closer in cost to conventional solar farms, thereby accelerating the adoption of cost-effective agrivoltaic systems.

Keywords: Dual-use solar; Energy policy; Solar farm design; Agrivoltaics (search for similar items in EconPapers)
Date: 2025
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Citations: View citations in EconPapers (2)

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DOI: 10.1016/j.apenergy.2024.124272

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