[TRNSYS-users] Max(1,E_solar) means?

[Tri Ayodha <tri.ayodha@gmail.com>]

Hello,

I am now calculating efficiency of pv system. But there was an error since if the radiation is zero then the effiviency will be undefined or infinity. Then, i check the example in PV-inverter how it calculates the efficiency. Apparently the equation is E_elec/max(1,E_solar). The question is what is the meaning of max(1,E_solar)?

Is there any documentation explaining this?

Thank you,

Tri Ayodha