How do you ground a 200 amp service panel?

Quote from the video:
Quote from Youtube video: In order to get 25 ohms resistance you have to have two ground rods a minimum of 6 feet away and that's what we're accomplishing with the number 4 solid wire based on the amperage of the panel.

How do you ground an electrical panel and meter base?

Quote from the video:
Quote from Youtube video: If you're crunched for space you can also run these at an angle. But what we're going to do is we're going to run this one straight down right underneath this meter here here is our demo hammer.