Manufacturing costs and logistics are two challenges to rapidly integrating more renewable energy into the U.S. power system. This is especially true for tall land-based wind turbines
, but Colorado-based Keystone Tower Systems is changing how wind turbines can be manufactured, transported, and installed.
With more than $7 million from the U.S. Department of Energy , Keystone Tower Systems has developed a solution: a spiral-welding technique, borrowed from the steel-pipeline industry, to build some of the largest turbine towers on the market. Spiral welding is when the steel used to make the tower is curled into a cylinder; essentially, these towers are built from meters-wide steel plates.
Before the Keystone team could even dream of building tall wind turbine towers, they successfully competed for funding through the Small Business Innovation Research program. From 2012 to 2019, they were awarded $3.7 million to design the manufacturing process and show the company’s potential for cost-effective expansion.
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