400amp/2-220amp grounding w/backup generator
I am installing a 400A. Service which will split into 2-200A panels. One will service a workshop and another will service our home. Each will have a service disconnect prior to the individual panels. The home has a 18kW backup generator. My questions are: How are the neutrals and grounds to be connected from the meter socket to the disconnects? Are they to be bonded at one point? Once they (the neutrals & grounds) leave the disconnects and continue to the panels are the neutrals and grounds to be isolated at the panels? Should I install ground-rods for the panels? Does the neutral and the ground from the backup generator need to be isolated from each other at the panel that supplies the home?