[martin_a]

> Besides, new plants can be built close to the sea instead of rivers to account for that.

I think that's a no-go due to the salt in the water that will corrode pipes etc. Not an expert on that, though, obviously.

All the other points don't sound too good either: Corrosion issues, let's fuck up nature with hot water, not very good at all.

[mrpopo]

It's possible to build nuclear plants by the sea, and it's actually commonly built. There are some in France, China, Korea, etc.