In what seems to be a cost effective solution from German engineering firm TimberTower, wood based turbine towers could pave the way for all future towers. First, a 100-meter wood tower would be 300 tons lighter compared to its steel counterpart. Naturally, that reduces the cost enormously. You can also make 200-meter towers, which is currently not possible using steel. The third and in my opinion one of the most significant advantages is that you can construct a tower in just about 2 days. This is evidently not possible while using steel. And at the same wooden towers can easily be dismantled and transported and set up again.
Wood was something that was used hundreds of years ago, but if TimberTower can bring this efficient application, there are so many innumerable options where the same concept could be applied.