How Solar Trackers Work

This 3D animated video gives a general overview of how solar trackers work and a detailed example of how a dual axis solar panel works. We look at why solar trackers are used, the different types of solar tracker (horizontal, vertical and dual axis), all of the main components of solar trackers, how solar trackers work and the advantages and disadvantages associated with a typical dual axis solar panel.


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Solar trackers can be manually, passively or actively controlled (actuated).

Solar trackers are split into three main types, these are the horizontal, vertical and dual axis types.

How Dual Axis Solar Panels Work
Hydraulic cylinders are used to adjust the position of the solar tracker in order to follow the sun on a north to south axis and east to west axis. An anemometer is used to measure the wind speed and a solar sensor detects the level of solar radiation (sunlight). The tracker directs itself actively towards the sun in order to harness the maximum amount of energy possible.


You can read more about dual axis solar trackers in our technical encyclopaedia:

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