Date: 07.31.12

Backtracking is a method to keep panels from shading each other.

Panels tracking the sun east-west through the day are returned to the “noon” position late in the day, even though the sun is low in the sky, to make sure they don’t shadow each other.

They stay in the “noon” position through the early morning, and then return to tracking the sun in mid-morning.

This method reduces the energy captured by a very small amount – typically about 2%.

InteliTrack systems use backtracking to make sure the panels never shadow each other.



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