A crop-agnostic baseline for agrivoltaics: Field-Proven characterization of Micro-CPVs with diffuse light transmission

IF 9.1 1区工程技术 Q1 ENERGY & FUELS

Renewable Energy Pub Date : 2025-10-06 DOI:10.1016/j.renene.2025.124578

Kareem Younes , Majed Bin Saad , Harry Apostoleris , Tareq Farrah , Gaël Nardin , Mathieu Ackermann , Noé Bory , Jaime Viegas , Matteo Chiesa

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引用次数: 0

Abstract

Traditional concentrator photovoltaics (CPV) systems cannot capture diffuse light and require bulky sun-tracking. In this work, we characterize a commercially oriented, semi-transmissive, micro-CPV with integrated tracking optically, thermally, and electrically under the sand-laden, hot desert climate of Abu Dhabi, United Arab Emirates to evaluate its potential for agrivoltaics and ability to contribute towards the interplay of the food-energy nexus. When the module operates in an “Electricity” mode (E-mode) by focusing direct light on micro-cells, the peak electrical efficiency was 26.9 % while 14–26 % of the incoming irradiance was uniformly transmitted as diffuse light underneath. When climate conditions are not favourable for electric generation, switching to a “Maximum Light Transmission” mode (MLT-mode) yielded a transmittance up to 71.61 %, providing a daily illuminance (daylighting applications) of 1.84 × 10⁹ lumens m⁻² day⁻¹ and Daily Light Integral (DLI) dose of 29.69 mol_PAR m⁻² day⁻¹, suitable for moderate-to-high light crops. On the thermal front, the air temperature beneath the panel surpasses the ambient temperature by a range of 10–15 °C, and the solar cell temperatures ran

\sim

27 °C above ambient at midday. Based on the data and observations of a 1-year crop-agnostic module characterization, we identify design improvement and manufacturing errors, mostly in the field of optics and tracking-integration.

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农业发电的作物不可知基线：具有漫射光传输的微型cpv的现场验证表征

传统的聚光光伏（CPV）系统不能捕获漫射光，并且需要庞大的太阳跟踪。在这项工作中，我们在阿拉伯联合酋长国阿布扎比的多沙、炎热的沙漠气候下，对一种商业导向的、半透射的、集成了光学、热和电跟踪的微型cpv进行了表征，以评估其在农业发电方面的潜力以及对粮食-能源关系相互作用做出贡献的能力。当该模块工作在“电”模式（e模式）下，通过将直射光聚焦在微电池上，峰值电效率为26.9%，而14 - 26%的入射光以漫射光的形式均匀传输。当气候条件不利于发电时，切换到“最大光透射”模式（mlt模式）的透射率高达71.61%，日照度（采光应用）为1.84 × 109流明m−2天−1，日光积分（DLI）剂量为29.69摩尔par m−2天−1，适用于中高光作物。在热前沿，面板下的空气温度超过环境温度10-15°C，正午时太阳能电池的温度比环境温度高27°C。基于1年作物无关模块特性的数据和观察，我们确定了设计改进和制造错误，主要是在光学和跟踪集成领域。

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来源期刊

Renewable Energy 工程技术-能源与燃料

CiteScore

18.40

自引率

9.20%

发文量

1955

审稿时长

6.6 months

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