Systems and methods for rotating photovoltaic modules

A system for rotating photovoltaic modules arranged in a row, the system comprising:

• purlins extending along and parallel to the row and coupled to the photovoltaic modules;
• first and second purlin arms positioned in a transverse direction to the purlins and coupled to each of the purlins;
• first and second drive mechanisms, each of the first and second drive mechanisms coupled to each of the purlins and one of the first or second purlin arms;
• a drive tube extending along and parallel to the row and coupled to gear teeth that engage with the drive mechanisms;
• an actuator;
• and
• wherein:
• actuation of the actuator rotates the drive tube;
• the rotation of the drive tube rotates the gear teeth;
• the rotation of the gear teeth rotates the first and second drive mechanisms;
• the rotation of the first and second drive mechanisms rotates the first and second purlin arms;
• and
• the rotation of the first and second purlin arms rotates the photovoltaic modules.