Yes it is, and I updated the post above with those facts. The point is that plenty, plenty, plenty more is needed for hydro and nuclear. I am trying to get complete numbers for nuclear plants, so far have only found numbers for upgrades.
Well if you can find numbers lets see them.
Note that to match a 1GW nuclear plant you would need 2.5GW of wind to account for the differences in capacity factor (that is erring in favor of wind power).
You would also need at least one 500MW-1GW gas turbine plant to provide backup when the wind drops to near zero.
So the concrete requirements for wind power must include the concrete needed for those backup plants.
If we do the calculations with hydro which has a lower capacity factor we find that:
1000 2.3MW wind 395,000 cu yds + backup power so the comparison looks good for hydro - but you picked a very old design using old techniques.
Data from a new dam like Site C would be more useful.
Note that hydro provides base load without the need for natural gas backup power which makes it superior than wind when it comes to GHGs emissions.