Abstract

This work addresses the potential impact on water quality and quantifies the benefit of the low carbon power source of floating solar panels in evaporation reduction when using them on an open water body, such as an agricultural irrigation pond in semi-arid regions. By utilizing agricultural ponds for low carbon energy conversion, and saving precious water through evaporation reduction, the highly vulnerable agricultural sector will be empowered. A pilot size setup is prepared, key water quality parameters were monitored and evaporation quantities in a PV-covered pond are compared to those from an adjacent open water pond used as a control. Several inclination angles for the panels were tested. Results showed no adverse impact on the water quality; on the contrary, there is evidence of improvement particularly in nitrate and chlorophyll concentrations. Moreover, a reduction of ~60% in evaporation was observed; power generation from the floating panels, on the other hand, was statistically similar to that from ground-mounted panels.

中文翻译：

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浮动光伏；半干旱地区水质和蒸发减少的评估

摘要

这项工作解决了对水质的潜在影响，并量化了浮动太阳能电池板低碳电源在减少蒸发方面的好处，当它们在开放水体上使用时，例如半干旱地区的农业灌溉池塘。通过利用农业池塘进行低碳能源转换，通过减少蒸发来节约宝贵的水资源，为高度脆弱的农业部门赋能。准备了一个试点规模的设置，监测关键的水质参数，并将 PV 覆盖的池塘中的蒸发量与用作对照的相邻开放水域的蒸发量进行比较。测试了面板的几个倾斜角。结果显示对水质没有不利影响；相反，有证据表明，特别是硝酸盐和叶绿素浓度有所改善。此外，观察到蒸发量减少了约 60%；另一方面，浮动面板的发电量在统计上与地面安装面板的发电量相似。