Is there a difference in yield between conventional and agrivoltaic farming?

Agrivoltaic Yield Reduction Factors

Agrivoltaic farming, also known as solar agrivoltaics, involves integrating solar panels into agricultural landscapes to generate electricity while minimizing the impact on crop yields. While initial studies indicated a potential yield reduction of up to 20%, more recent research suggests that optimized systems can mitigate this effect. A study conducted in Italy found that the yield reduction for wheat crops under agrivoltaics was around 2-5% when using optimized panel arrangements.

Optimal System Design

To minimize yield reduction, agrivoltaic systems require careful design and planning. Factors such as panel height, spacing, and orientation are crucial in ensuring that crops receive sufficient sunlight. A study in the United States found that using panels with a height of 3.5 meters and a spacing of 4 meters resulted in a 10% yield reduction for corn crops. In contrast, a study in Japan reported no significant yield reduction for rice crops when using a panel height of 2 meters and a spacing of 3 meters.

Crop Selection and Yield Recovery

Certain crops are more suitable for agrivoltaic farming due to their ability to adapt to shaded conditions. Crops like soybeans, alfalfa, and wheat are often used in agrivoltaic systems, as they are more tolerant of reduced sunlight. Research has also shown that some crops can recover from initial yield reductions over time as the plants adapt to the shaded conditions. A study in China found that the yield of soybean crops increased by 15% after 3 years of being under agrivoltaic panels.