We are installing many generators from 56kw to 2meg. We are finding grounding electrode conductors with amperage. The generator conducotrs run to the building and typically connect at a main breaker or main panel. The grounding electrode is at the generator. We have one right now with 6 amps present on the grounding electrode conductor. The generator netrual and ground are bonded and yes the building first disconnect or OCP is bonded. The MQ generators are typically on metal skids. Why the amperage on ground?