I'm upgrading an existing 100 amp service with the meter inside and the panel 30 feet away from the meter with a 200 amp service with the meter outside and the panel 35 feet away. I understand that i need to install a meter with a circuit breaker and understand my grounding electrode needs to originate in the meter enclosure because it is know considered the main. I understand that my panel is know a subpanel and i need a 4-wire, my question is that this is a very large house and i'm going to need 2, 42 circuit electrical panels, i do not think i can tap off of the first subpanel and install another subpanel. Can someone let me know what all my options are. Thanks Mike P