Use the output:variable called "Surface Ext Solar Incident". But you have to add this before running your simulation. The CSV file will contain this variable for each surface, so make sure you name your PV array as something recognizable.
Liam
--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "vicentina_0350024" <vicentina_0350024@...> wrote:
>
> Hi everybody:
> Now I am trying to simulate a model of Photovoltaic system.
> I want to know hourly total solar radiation incident on PV array during simulation. I know that total solar radiation incident on PV is calculated by EnergyPlus. How can I get solar radiation from setting Output:Variable or Output:Meter after running? Or, are there any other methods to get it?
> Thank you.
>
>
> Vicentina
>