I'm planning to upgrade my service to 200A and install a new main panel. I'll be posting a few other questions, but wanted to start with the meter pan. How can I tell if the meter pan is rated for 100A or 200A? See pictures below, this meter was installed in 1979, PSE&G territory. It is a Milbank enclosure, but I can't find any other markings on the outside. I've asked PSE&G about a service upgrade to 200A and here is what they replied:
Existing PS facilities are adequate. There is no cost required to proceed. Service is available from Transformer #116. PS inspection is required.
Which suggests to me that the underground wires are already sufficient for 200A, but maybe I'm misinterpreting what they wrote.
I recently had Tesla solar and a Powerwall installed, and they used a Tesla Backup Switch. Since PSE&G has not approved the Backup Switch behind their meter, they installed a separate meter pan for their Backup Switch (see pictures below). They ran 4/0 Aluminum from the old PSE&G meter pan to the new Backup Switch meter pan. I can still get permits under the 2017 NEC for a few months.
How do I figure out if the existing PSE&G meter pan is capable of 200A service? Thanks!