Where to land ground in main panel

Question

If one were to add a new branch circuit to this panel and didn’t want to use metal conduit, where would you land your ground wire to? Would you need to add a grounding location to the panel?

Answer 1

You might as well just replace the whole panel

There's absolutely no sense trying to hunt down the correct grounding bar for your panel -- it's a FPE Stab-Lok, whose breakers and busbars are both dangerously defective. As a result, you're far better off simply getting a new panel -- you could even go with a 12 or 16 space, 100A, outdoor rated (NEMA 3R) main breaker panel if you're that pinched for budget, although I'd recommend a 24 or 30 space panel instead.

If this is directly off your meter, you'll need to coordinate shutting the power off with your utility, by the way. (Many utilities can do this remotely for free during business hours, even, thanks to smart metering!)

Answer 2

To answer your simple question "Where is the ground" on my panel.

You have a ground connector at the bottom right.

Messing with this outdated panel is at your own risk, of shorts and fire.