” When you’re building a wind plant, you want to build the wind turbines as tall as you possibly can to capture the faster wind aloft “, said Cotrell in an NREL video. However, when you’re building tall wind turbines, the tower diameters become so large that they’re difficult to transport over the roads. With this technology, what we’re able to do is manufacture those towers onsite using an automated concrete manufacturing process that allows us to bypass the transportation and logistics constraints.”

Justin Gerdes, Green Tech Media

https://www.greentechmedia.com/articles/read/is-3d-printing-the-solution-for-ultra-tall-wind-turbine-towers#gs.mgZe3qtJ