Glycol is antifreeze used in the hydraulic circuit of a hybrid solar installation, it prevents freezing in the pipes.

The glycol content (in %) is calculated according to the location of the project in the world.

This gives for example in France :

 

Latitude	<45°N	>45°N -180→3°E	>45°N 3→6°E	>45°N 6→180°E
Glycol percentage	40%	40%	45%	50%

 

In a more visual way, the separation is done according to this approximate delimitation:

 

 

  

Volume of Glycol for an installation

 

The volume of glycol mixture is calculated according to the following calculation:

 

Volume required (L) = PVT Name * 5 + Piping Volume + Link Volume (Portrait (0.27) or Landscape (0.45))

 

To learn more click here : What is the impact of glycol on the environment ?

 

I prepare my solar project