[edynoid]

My first thought to this: can the turbines be made from wood instead? Searching for it, I found this:

https://newatlas.com/timbertower-wooden-wind-turbine/25007/

Making things out of wood is generally a good idea to save on carbon footprint. I have doubts you could build a nuclear power plant from timber given all the containment & shielding requirements.

[DuskStar]

Nice! But I bet it still uses a comparable amount of steel to the reactor reactor (in the blades), and I don't think replacing steel with wood would impact the concrete usage either.

[kragen]

I think the blades are mostly fiberglass these days?

Glulam wood can substitute for some uses of concrete, but I'm thinking it's probably not ideal for earth contact applications. Especially in places like Ohio, which we mentioned as an example in https://news.ycombinator.com/item?id=22181187