Idk if my panel has a primary ground wire. Looks like the meter is grounded outside and conduit is acting as the ground wire. Biggest wire that might be it, circled in
What is the difference between grounding and bonding? | Blue Palmetto Home Inspection | Electrical wiring, Home electrical wiring, Electrical wiring diagram
The Grounded Conductor – New Informational Note Article 100 – 2020 NEC | JADE Learning
What is the process of grounding and bonding a solar PV array?