I am having a discussion at the office reguarding 690.31(E)Direct-Current PV Source and Output Circuits inside a building. The difference in opinion we are having is with the "output circuits of a utility interactive inverter". One of us thinks this is refering to AC or DC inverter outputs and the other thinks it refers to DC only inverter outputs. I want to be subjective so I am not saying what position I have taken, but can anyone help us out? Thank you in advance.