I looked at a 2GW nuclear facility, and it's about 1 square Km. The reactors aren't too big, but there a lot of auxiliary buildings as well as parking for many

I looked at a 2GW nuclear facility, and it's about 1 square Km. The reactors aren't too big, but there a lot of auxiliary buildings as well as parking for many employees. I know one building is a training facility that replicates much of the primary facilities, and there is a lot of space dedicated to security either with actual structures or buffer zones. There are also PR/education facilities on site, presumably so the local municipality doesn't eventually vote them out. Somewhere they store fissile material. It's also on the coast for access to coolant water. It seems very difficult to place huge facilities like this with all the staff and security requirements on waterfront property when you can stick a solar panel on or next to just about anything.