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GE installs world's first spiral-welded wind turbine tower
GE installs world's first spiral-welded wind turbine tower,Denver's Keystone Tower Systems says it can cut the cost of wind energy with tech borrowed from pipemaking. It uses spiral welding techniques to roll sheet steel into huge turbine towers on-site, stronger, faster and cheaper than current techniques.

GE installs world's first spiral-welded wind turbine tower

Denver's Keystone Tower Systems says it can cut the cost of wind energy with tech borrowed from pipemaking. It uses spiral welding techniques to roll sheet steel into huge turbine towers on-site, stronger, faster and cheaper than current techniques.