Dual Axis Solar Tracking Systems

Dual Axis Solar Tracking Systems uses motors, gears, and actuators to position the solar tracker so that it is perpendicular to the sunlight. Dual Axis Solar Tracking Systems that use sensors to track the sun position inputs data into the controller, which in turns drives the motors and actuators to position the tracker. There are also trackers that uses solar map. Depending on the location, solar maps give information on where the sun is at different time of day throughout the year. Dual Axis Solar Tracking Systems that use solar map do not need sensors input to track the sun. But there are also tracker that uses both sensors and solar map. During sunny weather, the sensor would be used to track the sun. But during cloud-covered times, the information from the solar map would be used. It is important to track the sun even in cloudy condition since solar panels can produce energy during cloudy conditions. Passive Passive trackers use compressed gas to move the tracker. Depending on the position sunlight is falling on the gas containers difference in gas pressure is created, moving the tracker until it gets to an equilibrium position. The advantage of passive tracker is that the tracking system does not require a controller. But passive trackers are slow in response and are vulnerable to wind.