If I have a 200 amp meter main installed in dwelling, and I am feeding a 200 amp panel in the house with 4/0 aluminum SER, do I have to ground the panel with the ground wire that is in the SER jacket, or can I run a separate #6 copper to the panel and use that? The SER comes with three 4/0 and one 2/0 wire. The only reason I’m trying to do this is there is not a spot in the 200 amp panel that can accept the 2/0 ground wire. I’m having to get a big enough lug and tap it to the case. It would just be cheaper and easier for me to run the #6 and not hook up the 2/0 ground in the meter main or panel. Not sure if it’s code to use a separate ground than what is supplied in the feeder assembly.