SolarAlternativesDesign
Senior Member
- Location
- Soulsbyville, California, USA
I'm not sure the EGC from the ground mount array needs to run with the conductors all the way to the inverter & MSP [2017 NEC 690.43(C)], over 200 ft away, since they are grounded to the ground mount GE system [2017 NEC 690.43(A)]. If there were no GE system at the array there would be an obvious need. But I've always designed in an EGC with the PV output circuit in the conduit - doesn't seem right to have none in there. It's an ungrounded / transformerless inverter, PVC conduit.