A method for optimal utilization of solar energy in cooperation with photovoltaic power generation and plant cultivation

Abstract

The invention relates to the technical field of solar energy utilization, in particular to a photovoltaic power generation and plant cultivation coordinated solar energy optimal utilization method. The method comprises the steps of determining the forbidden bandwidth of a solar cell, using the solar cell as a roof of a plant cultivation greenhouse, enabling the portion, with photon energy larger than the forbidden bandwidth of the solar cell, in a solar spectrum to be used for photovoltaic power generation, and meanwhile enabling the portion, with photon energy smaller than the forbidden bandwidth of the solar cell, in the solar spectrum to penetrate through the solar cell to be used for the photosynthesis of plants. The method improves solar energy utilization rate and is strong in practicability, good in using effect and suitable for being popularized and used in large-scale cultivation.

Description

technical field [0001] The invention relates to the technical field of solar energy utilization, in particular to a solar energy optimization utilization method in which photovoltaic power generation and plant cultivation are coordinated. Background technique [0002] In the design and optimization process of existing solar cells, since the efficiency of single PN junction solar cells is limited by the Shockley-Queisser law and cannot be further improved, various modern technologies, including series multi-junction technology, intermediate bandgap technology, multi-junction Exciton generation technology, frequency conversion technology, and hot carrier collection technology are all used as means to improve the efficiency of solar cells. Although these so-called third-generation solar cells are beneficial to improving the efficiency of solar cells, they cannot be widely promoted and used because the price is too high or the technology is not mature enough. [0003] In all th...

AI Technical Summary

Problems solved by technology

Although these so-called third-generation solar cells are beneficial to improve the efficiency of solar cells, they cannot be widely promoted and used due to the high price or immature technology.

[0003] In all the above-mentioned design and optimization processes, since only the solar cell itself is optimized without considering the co-optimization with its surrounding environment, the structure of the solar cell becomes more and more complex and the cost is higher and higher, thus limiting The large-scale promotion and use of these technologies

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