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农业电压系统 (AVS) 设计的技术经济和生命周期评估

Achyuth Ravilla¹, Gabriela Shirkey², Jiquan Chen²

¹Department of Civil and Environmental Engineering, Portland State University, Portland 97201, OR, USA.

The Science of the total environment

|December 13, 2023

概括

农业电压系统 (AVS) 提高了能源和食品生产效率,在经济和环境方面表现优于仅使用太阳能系统. AVS需要激励措施来匹配仅种植作物的农场经济,但提供更大的可持续性.

科学领域:

农业工程农业工程
可再生能源系统可再生能源系统
环境科学环境科学

背景情况:

农业和太阳能光伏 (PV) 部署之间的土地使用竞争日益激烈,推动了对农业光伏系统 (AVS) 的兴趣.
对于AVS的经济可行性和环境权衡的理解有限.
AVS的目标是提高能源和粮食生产效率,同时尽量减少土地使用冲突.

研究的目的:

评估四种AVS配置 (全密度,半密度,单轴跟踪,双轴跟踪) 的技术经济和环境影响.
将AVS性能与传统的光伏系统进行比较.
为了确定AVS对农业农民的经济竞争力.

主要方法:

每公生命周期收入 ($/ha) 被用作经济分析的功能单位.
开发了一个案例情景,以确定AVS竞争力的最低电力售价.
进行了生命周期环境评估,以比较AVS和光伏系统.

主要成果:

与光伏系统相比,所有AVS配置都表现出优越的经济可行性,双轴追踪表现最好.
AVS需要额外的激励措施 (2¢ - 6¢/kWh),以匹配纯作物农场的经济表现.
对于每一个功能单元,AVS的环境影响比光伏单一系统低15-55%.

结论:

农电系统为光伏单一系统提供了更可持续的替代方案,发电对AVS环境影响贡献约80%.
敏感性分析证实,在超过66%的分析情景中,AVS是经济和环境更可持续的选择.
需要进一步的研究和政策支持,以优化AVS集成和经济可行性.

关键词:

农业LCA的LCA是什么农业电力农业电力食物 - 能源 - 水的联系在PV LCA和PV LCA中.技术经济技术经济

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