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Categories Solar trackers and structures
Solar trackers and structures
A solar tracker is a mechanical device capable of orienting the solar panels so that they remain approximately perpendicular to the sun, following the sun from the east at dawn to the west in the making. Solar trackers are used in all solar tracking technologies: FPV, CPV and CSP.
There are several types:
- In two axes (2x): the surface is always kept perpendicular to the sun. There are two types:
- Monopost: a single central support.
- Carrousel: various supports distributed along a circular surface.
- In a polar axis (1xp): the surface spins on an axis facing south and tilted at an angle equal to latitude. The rotation is adjusted so that the normal to the surface at all times coincide with the terrestrial meridian containing the sun's speed is 15 ° per hour, as the clock.
- In an azimuth axis (1XA): the surface spins on a vertical axis, the angle of the surface is constant and equal to the latitude. The rotation is adjusted so that the normal to the surface at all times coincide with the local meridian containing the sun's rotation rate is variable throughout the day.
- In a horizontal axis (1XH): the surface rotates on a horizontal axis oriented north-south. The rotation is adjusted so that the normal to the surface at all times coincide with the terrestrial meridian containing the sun
Solar Trackers
The cost and power generated depends on the type of follower.
In general, it is generally accepted that the azimuth tracking includes a 10% to 20% more than fixed structures.
Azimuthal Fans can get up to 25%.
Among the other two axes followers variations between 30% and 45% increase in production compared to fixed installations and substantial changes in the cost of equipment and foundations