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基于光谱分离的大规模高效低成本农业光伏系统

Large-scale and cost-efficient agrivoltaics system by spectral separation.

作者信息

Zhang Fangxin, Li Ming, Zhang Wei, Liu Wenjun, Ali Abaker Omer Altyeb, Zhang Zhisen, Zheng Jianan, Liu Wen, Zhang Xinyu

机构信息

Department of Optics and Optical Engineering, School of Physical Sciences, University of Science and Technology of China, 96 Jinzhai Road, Hefei City 230026, China.

Xiong'an Institute of Innovation, Xiong'an New Area 071700, China.

出版信息

iScience. 2023 Oct 5;26(11):108129. doi: 10.1016/j.isci.2023.108129. eCollection 2023 Nov 17.

DOI:10.1016/j.isci.2023.108129

PMID:37876800

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10590749/

Abstract

Agrivoltaics (AV) offers a promising solution to address both food and energy crises. However, crop growth under photovoltaic (PV) conditions faces substantial challenges due to insufficient light transmission. We propose a large-scale and cost-effective spectral separated concentrated agricultural photovoltaic (SCAPV) system. The system utilizes concentrator modules, cell components, and dual-axis tracking systems to enhance power conversion efficiency (PCE), achieving a maximum PCE of 11.6%. After three years of successful operation, a 10 kWp power plant achieved an average annual electricity generation exceeding 107 MWh/ha. The results showed higher yields of various crops, including ginger and sweet potatoes, and significant improvements in soil moisture retention compared to open air. The improvements in PCE and microclimate validate the scalability of the SCAPV, which provides better plant conditions and cost-effectiveness, with an estimated cost reduction of 18.8% compared to conventional PV power plant. This study provides valuable insights and directions for improvement in AV.

摘要

农光互补（AV）为解决粮食和能源危机提供了一个有前景的解决方案。然而，由于光传输不足，光伏（PV）条件下的作物生长面临重大挑战。我们提出了一种大规模且经济高效的光谱分离聚光农业光伏（SCAPV）系统。该系统利用聚光模块、电池组件和双轴跟踪系统来提高功率转换效率（PCE），实现了11.6%的最大PCE。经过三年的成功运行，一个10千瓦峰值功率的发电厂实现了平均年发电量超过107兆瓦时/公顷。结果表明，包括生姜和红薯在内的各种作物产量更高，与露天相比，土壤保水能力有显著改善。PCE和微气候的改善验证了SCAPV的可扩展性，它提供了更好的植物生长条件和成本效益，与传统光伏电站相比，估计成本降低了18.8%。本研究为农光互补的改进提供了有价值的见解和方向。