Azimuth-height tracking: Polar tracking is to adjust the angle of photovoltaic module by rotating around the vertical axis (polar axis) and horizontal axis (azimuth axis) aligned with the polar axis of the earth. The polar axis tracking system can realize all-weather sun tracking, including horizontal rotation and pitch angle adjustment. This tracking method is suitable for areas with higher latitudes, and can absorb solar energy to the maximum extent under different seasons and sunshine conditions.
Azimuth-elevation tracking: Azimuth-elevation tracking adjusts the angle of photovoltaic module by rotating around horizontal axis (azimuth axis) and vertical axis (elevation axis). This tracking method only needs to consider the position of the sun in the horizontal direction, and does not need to be adjusted according to the changes of seasons and sunshine angles. Azimuth elevation tracking is suitable for low latitude areas or application scenarios that need to simplify the tracking system.
These two-axis tracking photovoltaic brackets can realize angle adjustment based on electric drive, hydraulic drive or other mechanical drive systems. Which type of dual-axis tracking photovoltaic bracket to choose depends on the project requirements, geographical location and economic feasibility.