Vestas has introduced onshore wind turbines with hub height of 166m. It is the V126-3.45MW model. They also offer hub heights of 87m, 117m, 137m, 147m and 149m. The tall hub heights are made possible by the large diameter steel tower (LDST) sections that are below the standard 3 sections of the tower. LDST is made in 3 sections for ease of transportation. The claim is hub height of 166m versus 117m results in 20% higher annual energy production.
This approach has some advantages over an alternate approach adopted by suppliers like Enercon who build a concrete base tower onsite, and then place the 3 sections of the steel tower on top of the concrete base. The advantages of LDST is faster installation (2 days) and 99% recyclable (after decommissioning).