While the blades are still fiberglass, it seems that the tower could be built of wood - Here is a 2MW wood turbine - https://www.bbc.com/news/science-environmen

While the blades are still fiberglass, it seems that the tower could be built of wood - Here is a 2MW wood turbine - https://www.bbc.com/news/science-environment-67718719 https://www.bbc.com/news/science-environment-67718719 (2MW isn’t cutting edge anymore for onshore turbines)