An Algorithm for Calculating the Shade Created by Greenhouse Integrated Photovoltaics

Abstract

Abstract The integration of photovoltaic modules into greenhouse roofs is a novel and intriguing method. Harnessing solar radiation is key to ensuring optimal crop growth, as photosynthesis relies on it. Furthermore, capturing solar radiation by employing photovoltaic systems allows energy production. Given its substantial significance in both energy generation and agriculture, this emphasizes the crucial function that solar radiation plays in these two industries. Greenhouses offer a unique opportunity to optimize both plant growth and energy generation, thereby increasing their overall worth. This approach is especially beneficial considering the growing need for land and the accompanying spatial and economic complexities. The installation of photovoltaics on the greenhouse roof has a significant impact on shading, which can be advantageous or disadvantageous, depending on the season, the crop, and the growth stage. As a result, estimating the shading in the greenhouse is imperative. In this paper, an algorithm for precisely measuring the shadowed surface area generated by solar panels within a greenhouse was developed and presented. This method also reliably determines the percentage of coverage on the whole greenhouse unit throughout the year using a time step of 10 minutes. For greenhouse operators wishing to optimize the potential of their solar panel installations, this streamlined solution provides clear and persuasive statistics.