Agri-photovoltaics research shows yield benefits and soil risks

Recent research and field projects in Europe are examining the dual benefits and technical challenges of agri-photovoltaics (Agri-PV), which combines solar power production with agricultural land use.

In Switzerland, an innovation project at Landgut Weitsicht is investigating how solar modules can protect crops, such as cornelian cherries, from extreme weather. The study aims to determine if partial shading can mitigate heat stress, reduce water evaporation, and help create a “sponge soil” that retains moisture during droughts and manages heavy rainfall more effectively.

In Germany, the Leibniz Centre for Agricultural Landscape Research (ZALF) conducted a study in Brandenburg regarding the impact of the construction phase on soil structure. Findings indicated significant soil compaction in both the areas under module supports and the agricultural spaces between rows, with some density levels potentially hindering root growth. The researchers recommend soil-scientific construction supervision to mitigate these effects.

Meanwhile, in Austria, the provider EWS reported positive agricultural outcomes, noting a 14 percent increase in winter wheat yields at their research facility in Bruck an der Leitha.