Categories: Solar Technology

How Solar Trackers Work

A solar tracker is a system whereby solar photovoltaic panels  follow the sun throughout the day – retaining the best angle for maximum radiation exposure.

Solar trackers work by changing the tilt and direction of solar panels as the sun moves across the sky.

Solar modules are mounted on tracking frames, connected to a solar actuator – which acts like a hydrolic lift or extender.

As the sun moves across the sky, the actuator extends and moves the solar panel in order to keep the optimal angle with the sun.

Working with solar trackers is becoming increasingly popular in both domestic and utility scale systems as it boosts the overall efficiency of photovoltaic installations.

The LINAK Solar Park in Denmark found that by adding trackers to their solar modules, they could get 30-40 percent additional electricity output.

The solar park was a green initiative of the LINAK company, setup next their headquarters. It is expected to generate around 90,000 kilowatt hours per year.

Many large utility solar parks are also using solar tracker systems, such as Italy’s 80,000 module Montalto di Castro.

This post was last modified on April 4, 2019 9:20 pm


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