Maximum height for crops under solar panels?

Crop Selection and Shading Tolerance

When choosing crops to grow under solar panels, it’s essential to select varieties that are tolerant of partial shade, as some sunlight will still be blocked by the panels. Crops like lettuce, spinach, and herbs are well-suited for this environment. For crops that require more sunlight, consider using a trellis or other support system to optimize space usage.

Panel Angle and Crop Height

The angle of the solar panels will also impact the available growing space. Typically, panels are installed at an angle of 15 to 30 degrees to maximize energy production. This creates a triangular shape between the panel and the ground, with the base of the triangle being the maximum height for crops. For example, if a panel is installed at a 20-degree angle, the maximum crop height would be approximately 45 inches (115 cm).

Best Practices for Agrivoltaics

To achieve optimal results in agrivoltaics, it’s crucial to plan the layout carefully, considering factors like panel spacing, crop selection, and irrigation requirements. A general rule of thumb is to maintain a minimum distance of 3 to 4 feet (90-120 cm) between panels to ensure adequate sunlight penetration for crops. Additionally, consider using drip irrigation or other water-efficient systems to minimize water loss.