Estimation Model of Agrivoltaic Systems Maximizing for Both Photovoltaic Electricity Generation and Agricultural Production
Estimation Model of Agrivoltaic Systems Maximizing for Both Photovoltaic Electricity Generation and Agricultural Production
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DOI：
10.3390/en16073261
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发表时间：
2023-04-01
期刊：
影响因子：
3.2
通讯作者：
Nishioka, Kensuke
中科院分区：
文献类型：
--
作者：
Yajima, Daisuke;Toyoda, Teruya;Nishioka, Kensuke
气候变化和粮食需求增加是需要立即关注的全球性问题。在农田上方安装太阳能电池板的农业光伏系统可以同时解决气候和粮食问题。然而，由于太阳能电池板的遮阳，目前的系统往往会减少农业产量并延迟收获期。收获期的推迟会影响希望在特定时间出售农产品的农民的收入。本研究结合计算太阳辐照发电量的模型，建立了估算太阳能电池板覆盖作物正确开始种植日期的模型，以确保正确的收获日期，并通过计算农业产量和发电量来确定农民的预期收入。以宫崎县的芋头种植为例，该模型估计，为了保证理想的收获期和农业生产，种植开始日期应提前23天。这将防止一个面积为1万平方米的农场每年损失1.6万美元的机会。此外，通过调整种植期和非种植期的遮阳率，预计每年可获得142,000美元的额外收入。
Climate change and increasing food demand are global issues that require immediate attention. The agrivoltaic system, which involves installing solar panels above farmland, can simultaneously solve climate and food issues. However, current systems tend to reduce agricultural production and delay the harvest period due to shading by the solar panels. A delayed harvest period impacts the income of farmers who wish to sell produce at specific times. Incorporating a model that calculates the amount of electricity generated by solar irradiation, this study establishes a model to estimate the correct start date of cultivation for solar panel covered crops to ensure the correct harvest date and determines the expected income of farmers by calculating agricultural production and power generation. Using taro cultivation in Miyazaki Prefecture as a case study, the model estimated that the start date of cultivation should be brought forward by 23 days to ensure the ideal harvest period and agricultural production. This would prevent an opportunity loss of USD 16,000 per year for a farm area of 10,000 m(2). Furthermore, an additional income of USD 142,000 per year can be expected by adjusting shading rates for the cultivation and non-cultivation periods.