Ignoring the rapidly changing battery chemistry is silly.
Calling the concrete argument silly is silly. Here are some facts:
Largest windmill - 395 cubic yards concrete - 2.3 MW
Hover dam - 4,360,000 cubic yards concrete - 2000 MW
Depends on the dam. The Hoover dam is an extreme example of a concrete dam. The WAC Bennet dam is an earth filled dam that uses comparatively little concrete and produces 2900 MW. Besides, the comparison here is between wind and nuclear, not hydro.