Tracking array

A PV panel array that follows the path of the sun to maximize the solar radiation incident on the PV surface. The two most common orientations are (1) single-axis tracking where the array tracks the sun east to west and (2) dual-axis tracking where the array changes position seasonally as well as diurnally to allow the panels to directly face the sun at all times of the year. Tracking arrays use both the direct and diffuse sunlight. Dual-axis tracking arrays capture the maximum possible energy.