In this study, a Consequential Life‐Cycle Assessment (CLCA) was conducted to holistically assess the environmental consequences arising from a shift from single‐use agriculture to agrivoltaic systems (AVS) in Germany. The results of the study show that the environmental consequences of the installation of overhead AVS on agricultural land are positive and reduce the impacts in 15 of the 16 analyzed impact categories.
This two-year study aimed to analyze whether intermittent shading produced by panels placed over grapevines can delay grape ripening to counter the impact of global warning on phenology. Researchers concluded that intermittent shading produced by panels can shift ripening into a cooler period compared to unshaded plants. They also state that shading intensity and duration should be adapted to evaporative and soil water conditions to benefit from the phenological delay caused by panels, without altering production in the long term.
This paper applied an open-source spatial-based model to quantify the solar power generation (the ground-mounted photovoltaic panels) for the southern regions of Poland and Ukraine. Researchers then compared economic indicators of the solar power generation and the crop production projects for rain-fed land. The analysis revealed that the PV projects have higher net present value, but lower profitability index compared to the crop production.
This PhD dissertation addresses four primary questions: 1.) To what extent is plant-available radiation reduced by solar panels of a photovoltaic system? 2.) How does this effect parameters of aerial and soil climate? 3.) How do the cultivated crops respond to the altered cropping conditions with regard to plant growth and development? 4.) What consequences does this have regarding the yields and the chemical composition of the investigated crop-species? A field experiment in which grass clover, potatoes, celery, and winter wheat were planted under a photovoltaic facility in Southwest Germany was conducted to answer these questions.
This study evaluates green bean cultivation inside greenhouses with photovoltaic (PV) panels on the roof. Researchers found that the beans adapted to the change in shading by relocating more resources to the stems and leaves. As a result, average yield decreased compared to that of a conventional greenhouse. However, an economic trade-off between energy and crop yield can be achieved with a panel coverage of 10%. The research also provides an experimental framework that could be replicated and used as a decision support tool to identify other crops suitable for solar greenhouse cultivation.
The effect of shading on the performance of Cabernet Sauvignon was studied. Significant different levels of canopy density were created using the growth of neighbouring vines, thus ensuring no artificial change in natural light composition. Light penetration in these canopies differed significantly between treatments. Berry mass, bunch mass and yield as well as skin colour were decreased with increasing levels of shading, while pH, K-concentration and TT A were increased. Tartaric acid decreased while malic acid increased with an increase in shading. Wine quality was negatively affected.
The rate of solar power generation is increasing globally at a significant increase in the net electricity demand, leading to competition for agricultural lands and forest invasion. Agrivoltaic systems, which integrate photovoltaic (PV) systems with crop production, are potential solutions to this situation. Currently, there are two types of agrivoltaic systems: 1) systems involving agricultural activities on available land in pre-existing PV facilities, and 2) systems intentionally designed and installed for the co-production of agricultural crops and PV power. Agrivoltaic systems can boost electricity generation efficiency and capacity, as well as the land equivalent ratio. They also generate revenue for farmers and entrepreneurs through the sale of electricity and crops. Therefore, these systems have the potential to sustain energy, food, the environment, the economy, and society. Despite the numerous advantages of both types of agrivoltaic systems, few studies on utilizing the available land area under existing ground-mounted PV systems for agricultural crop production have been conducted. Moreover, with several conventional solar power plant projects currently underway around the world, an expanding trend is anticipated. As a result, this article offers practical advice for agrivoltaic systems on how to implement an agricultural area under ground-mounted PV power systems without agricultural pre-plans. These systems are useful for policymaking and optimizing land use efficiency in terms of energy production, food supply, environmental impact, local economy, and sustainable societies.
Climate change and extreme weather affect tea growing. A competitive tea market needs quick, short-term solutions. This study evaluates the effects of various shade nets under mild and extreme cold stress on tea leaf physiology, photosynthetic alterations, antioxidant activities, and physiochemical characteristics. Tea plants were treated with SD0 (0% non-shading), SD1 (30% shading), SD2 (60% shading), and SD3 (75% shading). The 30%, 60%, and 75% shade nets shielded tea leaves from cold damage and reduced leaf injury during mild and extreme cold conditions compared with SD0% non-shading. Shading regulates photochemical capacity and efficiency and optimizes chlorophyll a and b, chlorophyll, and carotenoid contents. Moreover, carbon and nitrogen increased during mild cold and decreased in extreme cold conditions. Shading promoted antioxidant activity and physiochemical attributes. In fact, under 60% of shade, superoxide dismutase, peroxidase, catalase, and omega-3 alpha-linolenic acid were improved compared with SD0% non-shading during both mild and extreme cold conditions. From these findings, we hypothesized that the effect of different shades played an important role in the protection of tea leaves and alleviated the defense mechanism for “Zhong Cha 102” during exposure to a cold environment.
This paper shows that agrivoltaic systems allow us to reach sustainable food and electricity goals with high land-use efficiency. The study shows the yield, antioxidant capacity, and secondary metabolite of broccoli and electricity production were analyzed under an agrivoltaic system over three cultivation periods. The study also reports that agrivoltaic with additional shading treatment produced greener broccoli with a higher level of consumer preference than open-field grown ones.