For years now, the U.S. Department of Energy has had one major roadblock to the streamlining of wind turbine installation: the sheer amount of work it takes to manufacture blades. The best wind turbine blade design is currently the three-bladed horizontal-axis rotor, but that very well could change if experimental blades could be more accessible. This 3D printing effort is currently moving in various different directions, including the Department of Energy's Wind Energy Technologies Office and Advanced Manufacturing Office alongside national laboratories and various private-sector partners. Wind energy already supplies more than 10% of U.S. electricity and generating enough power for tens of millions of American homes. With these advances, the DOE could take the nation's renewable energy infrastructure to entirely new heights, and it's also worth noting that the U.S. is also home to many large wind turbine manufacturers.