A Solar Tracker minimizes the angle of incidence (the angle that a ray of light makes with a line perpendicular to the surface) between the incoming light and the solar panel to increases the solar energy production.
Single-axis solar trackers rotate on one axis moving back and forth in a single direction. Different types of single-axis trackers include horizontal, vertical, tilted, and polar aligned, which rotate as the names imply. Dual-axis trackers continually face the sun because they can move in two different directions. Types include tip-tilt and azimuth-altitude.
Dual-axis trackers are more accurate in pointing directly at the sun which is usually the brightest spot in the sky, however, Dual axis comes at the price of higher complexity and lower reliability ( more down time and more maintenance) than single axis.
Ground Mount PV systems provide the flexibility to install arrays in open spaces when available roof area is limited, obstructed or nonexistent. Ground-mount PV systems can be adapted to a variety of site conditions. They often allow for optimized designs, such as specifying the array’s optimal pitch and orientation to maximize kilowatt-hour production.