Study on High energy efficiency photovoltaic facility agricultural system in tropical area of China

¹ Hainan normal University, Physics Department, No. 99, Long Kun south road, Haikou, China
² Hainan normal University, Horticulture Department, No. 99, Long Kun south road, Haikou, China
³ Shanghai JiaoTong University, Physics Department, No. 800 Dongchuan RD. Minhang District, Shanghai, China
⁴ Hainan University, Horticulture Department, No. 58 People's RD, Haikou, China

Abstract

The photovoltaic facility agriculture is developing rapidly in recent years, but there are many problems brought out, even in some important demonstration projects, due to the lack of standards. In order to solve some of these problems, we set up a photovoltaic facilities agricultural system in Guilinyang University City, Haikou, China and make an in-depth study on the photovoltaic facility agricultural system and its related problems. In this paper we disclose some of the experimental results. We plant corianders under two kinds of solar cell panels and general double glass assembly already sold on the market. Experiments showed that the square format cell panels are much better than row type, and the next one is general double glass assembly sold on the market, the last is the case without any shelter. 30 days after planting, the height of coriander plants are 50mm, 30mm, 23mm and 20mm correspondingly. The two typical solar cell panels have gaps between cells, and can save much more energy and improve power generation efficiency, we arrange the panels at optimum tilted angle, and design the system as open structure to save more energy. The photovoltaic facilities agricultural system we set up in Guilinyang University City can achieve much high solar energy efficiency than others and has broad application prospects.